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In the setting of research or an academic practice erectile dysfunction pills new order vimax 30 caps on line, more stringent and objective measures such as pad weight testing are often used (see Supplemental Evaluation). Fourth, establishment of the duration of symptoms and any inciting events that contributed to the onset of leakage is important. Regarding pelvic prolapse specifically, important questions focus on whether the patient is aware of any prolapse and what, if any, symptomatology and bother the prolapse may be causing. Medications An accurate assessment of medications is critical, particularly in the elderly patient population in whom polypharmacy is common. Special attention should be focused on agents that can affect bladder/ sphincteric function. However, other organ systems/body areas not limited to the genitourinary system may be included in a report to accomplish the requirements of various levels of examination. Additionally, a thorough review of systems may reveal symptoms that suggest other conditions that could have an impact on pelvic floor function. Male incontinence, also a very prevalent health issue, should be assessed in much the same way as female incontinence, although specific consideration of the impact of the anatomy specific to the male should be considered. Benign prostatic hyperplasia, the evaluation of which is covered in detail in Chapter 104, can cause secondary urgency and urgency incontinence in addition to more "typical" obstructive symptoms, such as a decreased force of stream, urinary hesitancy, intermittency, and incomplete bladder emptying. PhysicalExamination the general appearance of a patient, including details such as age, gait, stature, and fragility, can provide important information regarding performance status, neurologic status, and other factors that may direct proper treatment planning. Similarly, an abdominal examination evaluating for incisions, hernias, organomegaly or bladder distention, and habitus is important, particularly if any abdominal surgery may be considered. Per Medicare coding guidelines (Centers for Medicare and Medicaid Services, 1997), a female pelvic examination includes at least 7 of the 11 bulleted items listed in Box 71-2. The external genitalia should be evaluated with regard to general appearance, estrogen status, lesions, and labial size, and adhesions. Estrogen status can be evaluated based on the presence or absence of a urethral caruncle, urethral prolapse, and/or labial adhesions, all of which, if present, may indicate estrogen deficiency. Hormonally deficient vaginal tissue has a pale, flat, dry appearance with no rugae, as opposed to the healthy, pink rugated tissue of well-estrogenized tissue. Urethral position and mobility should be assessed at rest and with straining and coughing. The Q-tip test was developed to objectify the evaluation of urethral mobility (Bergman and Bhatia, 1987; Walters and Diaz, 1987). The discomfort caused to the patient during insertion of the Q-tip can be minimized with the use of intraurethral lidocaine jelly. With the patient in the lithotomy position, a Q-tip is inserted into bladder through the urethra and the angle that the Q-tip moves from horizontal to its final position with straining is measured. Hypermobility is defined as a Q-tip angle of more than 30 degrees from horizontal. Connective tissue support of the pelvis and the pelvic viscera was described by DeLancey in three levels. Assessment of prolapse ideally should be performed in both the lithotomy and standing positions, the latter facilitated by having the patient stand with one foot elevated on a short stool. Each compartment-the anterior, posterior, and apical (uterus/cervix or vaginal cuff)-should be evaluated methodically and the perineal body assessed for laxity. A complete systematic examination is performed using two posterior blades of a split Grave speculum with and without straining. First, one blade is used to retract the posterior wall to facilitate anterior compartment examination. The blade is then repositioned to retract anteriorly for examination of the posterior compartment. Finally, both blades are inserted simultaneously, one anteriorly and one posteriorly, to isolate the vaginal apex and facilitate examination of the cervical or cuff support. Foreshortening of the posterior wall causes expulsion of the blade and suggests a compromise in the level I support (DeLancey, 1992) (cardinal-uterosacral ligament complex) of the vault; if the blade remains in place, this could represent an isolated rectocele or enterocele without vault prolapse. Six vaginal points labeled Aa, Ba, C, D, Ap, and Bp are measured during Valsalva maneuver. Points above the hymen are considered negative, and points below the hymen are positive. The genital hiatus (gh) represents the size of the vaginal opening, while the perineal body (pb) represents the distance between the vagina and the anus. The total vaginal length (tvl) is measured by reducing the prolapse and measuring the depth of the vagina. A neurologic examination is important in any patient with a known or suspected neurologic condition. Demonstration of a rectocele can be facilitated via anterior pressure applied by a finger placed in the rectum. Patients are asked to voluntarily tighten the pelvic floor as if attempting to stop the flow of urine midstream. Laxity in the rectal sphincter tone may suggest a possible neurologic defect, but it also may be due to patient lack of understanding regarding how to voluntarily control the specific muscle groups necessary for contraction. In men, genitourinary examination as it pertains to voiding function also should include evaluation of the penis for meatal stenosis and, particularly in the postprostatectomy patient, visible urinary leakage with coughing and straining. Examination for leakage is ideally performed with the patient in the standing position. Instruments such as voiding diaries, questionnaires, and pad tests have been developed to aid in the quantification of urinary loss, both symptomatically and volumetrically. The use of diaries often helps patients realize their pattern of urination and is more accurate than recall (McCormack et al, 1992; Siltberg et al, 1997; Stav et al, 2009). Furthermore, the diary can provide patients with insights into those behaviors that can be altered to decrease urinary frequency (Burgio, 2004). Several studies have demonstrated the adjunctive role that diaries can have in the diagnosis and management of incontinence.

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A similar inhibitory mechanism has been identified in monkeys by directly stimulating the anal sphincter muscle (McGuire et al erectile dysfunction treatment houston tx vimax 30 caps visa, 1983). In monkeys, at least part of the inhibitory mechanism must be local ized in the spinal cord, because it persisted in T4 chronically para plegic animals. The storage phase of the bladder can be switched to the voiding phase either involuntarily (reflexively) or voluntarily. The former is readily demonstrated in the human infant or in patients with neuropathic bladder when the bladder wall tension caused by increased volume of urine exceeds the micturition threshold. Bulbo pinal s pathways from the brain can modulate these spinal reflex mechanisms. These reflexes require the integrative action of neuronal populations at various levels of the neuraxis. A landmark in the historical progress of neurobiology is the contribution of Barrington. Using his keen observational skills, Barrington (1931, 1941) reported that urine flow or mechanical stimulation of the urethra with a catheter could excite afferent nerves that, in turn, facilitated reflexive bladder con tractions in the anesthetized cat. He proposed that this facilitatory urethra-to-bladder reflex could promote complete bladder emptying. Studies have confirmed the existence of this type of reflex by the pudendal nerve because lowfrequency electric stimula tion of afferent axons in the pudendal nerve in humans, or the deep perineal nerve (a caudal branch of the pudendal nerve) in cats, can initiate reflexive bladder contractions and voiding (Shefchyk and Buss, 1998; Boggs et al, 2005). The other component was activated by a visceral afferent pathway in the pelvic nerve and produced facilitation by a spinal reflex mechanism (Barrington, 1941). Measure ments of reflexive bladder contractions, under isovolumetric condi tions during continuous urethral perfusion (0. It was concluded that activation of urethral afferents during urethral perfusion could modulate the micturition reflex in the rat. Supraspinal Pathways Pontine Micturition Center and Brainstem Modulatory Mechanisms. The integral role of the brainstem in bladder function was initially realized by the demonstration in cats that micturition was abolished by lesions at the level of the inferior colliculus, whereas lesions anterior to the colliculus facilitated micturition, presumably by removing inhibitory influences (Barrington, 1921, 1925). The roles of pontine nuclei revealed by animal models translate well to humans as indicated by brain imaging during micturition (Fukuyama et al, 1996; Blok et al, 1997; Kershen et al, 2003) and clinical cases showing that specific pontine lesions can result in either bladder continence or incontinence problems (Fukuyama et al, 1996; Sakakibara et al, 1996; Charil et al, 2003). The dorsal pontine tegmentum has been firmly established as an essential control center for micturition in normal subjects. First described by Barrington (1921), it has subsequently been called the Barrington nucleus, the pontine micturition center (Blok and Holstege, 1997) or the M region (Blok and Holstege, 1996; Holstege et al, 1996) because of its medial location. In 1925 Barrington was the first to describe a pontine control center for micturition in the cat after lesion studies (Barrington, 1921, 1925). This region was better localized to a nucleus in the dorsal pons (now termed the Barrington nucleus) using more discrete lesions that abolished mic turition and caused urinary retention in cats and rats (Tang, 1955; Satoh et al, 1978). Lesions in humans as a result of stroke or mul tiple sclerosis in an analogous region similarly result in urinary retention (Komiyama et al, 1998). Physiologic studies have confirmed the role of the Barrington nucleus in micturition. Both electrical and chemical activation of Barrington nucleus neurons in rats and cats initiates bladder con tractions and relaxes the urethral sphincter (Holstege et al, 1986; Mallory et al, 1991; Pavcovich and Valentino, 1995; Tanaka et al, 2003). Precise mapping of sites at which chemical stimulation elicits bladder contractions demonstrates a welldefined area local ized to the Barrington nucleus (Pavcovich and Valentino, 1995). Single unit recordings in rat pons revealed three types of responses to bladder contraction: an excitation that occurred only before con traction, an excitation that occurred before and was maintained during contraction, and an inhibition during contraction (Tanaka et al, 2003). Neurons that were activated just before contraction and that maintained activation during contraction were found in Bar rington nucleus whereas the other two types of neurons were scat tered throughout the pontine tegmentum. Micturition also requires an inhibition of the urethral sphincter to be coordinated with detrusor contraction. The striated urethral sphincter (rhabdosphincter) is controlled by the interaction between upper motor neurons and the lower motoneurons of the Onuf nucleus. Rather, in the cat a diffuse region ventrolateral to Barrington nucleus, termed the L-region, is thought to provide pontine control of sphincter function through its projections to Onuf nucleus (Holstege et al, 1979). For coordination between the detrusor and sphincter, there should be some form of reciprocal communication between these regions. However, a lack of connec tions between Barrington nucleus and the Lregion argue against sphincter regulation by Barrington nucleus through this route (Blok and Holstege, 1999). Together, the anatomic and physiologic findings just described point to Barrington nucleus as being the command center for initiating and orchestrating the act of bladder emptying. This must be delineated by additional tract tracing between putatively connected brain nuclei and physiologic studies. For example, studies in humans indicate that voluntary control of voiding is dependent on connections between the frontal cortex and the septalpreoptic region of the hypothalamus, as well as on connections between the paracentral lobule and the brainstem. Lesions to these areas of cortex appear to directly increase bladder activity by removing cortical inhibitory control (de Groat et al, 1993). Knowledge of the neurochemical signals within the central circuits controlling micturition is important for understanding how these circuits function and how they can be manipulated for the treatment of bladder dysfunctions. These were reviewed in detail by Holstege (2005) and by Fowler and colleagues (2008).

Diseases

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  • Activated protein C resistance
  • Wiedemann Oldigs Oppermann syndrome
  • Porphyria, hereditary coproporphyria
  • Diabetes insipidus, nephrogenic type 1
  • Leifer Lai Buyse syndrome
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The true incidence of neurogenic vesicourethral dysfunction after various types of pelvic surgery is unknown because there are few prospectively studied series of patients with preoperative and postoperative urodynamic evaluation erectile dysfunction icd 10 purchase vimax 30 caps overnight delivery. These are estimates drawn from past literature, and the current incidence is most likely significantly lower, owing to the use of nerve-sparing techniques during these types of pelvic procedures. The injury may occur from denervation or neurologic decentralization, tethering of the nerves or encasement in scar, direct bladder or urethral trauma, or bladder devascularization. Therapeutic and disease-related effects on pelvic nerves have substantive effects on long-term functional outcomes after treatment for anal-rectal carcinomas. Approximately one third of patients have some element of urinary tract dysfunction (urinary frequency, urgency, and/or poor detrusor contraction resulting in retention and incomplete emptying). Abdominoperineal resection has the greatest impact on function, most likely because of autonomic nerve injury at time of resection. Other dysfunctions related to sexual activity, ejaculatory dysfunction in men, and vaginal dryness and dyspareunia in women are also commonly associated with the management of this malignancy (Lange and van de Velde, 2011). Parasympathetic decentralization has been reported to lead to a marked increase in adrenergic innervation of the bladder in some experimental models, with the resultant conversion of the usual (relaxant) response of the bladder body in response to sympathetic stimulation to the (contractile) effect (Sundin et al, 1977). Hanno and colleagues (1988) confirmed that, in the cat model, parasympathetic decentralization does result in adrenergic hyperinnervation of the detrusor but that pelvic plexus neurectomy alone or parasympathetic decentralization plus hypogastric neurectomy yields no detectable increase in adrenergic innervation. In their experimental model, decentralization did result in synaptic reorganization in bladder wall ganglia with new cholinergic excitatory inputs from the hypogastric nerves. Urodynamically, obstruction may be seen from likely residual fixed striated sphincter tone, which is not subject to voluntarily induced relaxation. Whether this appearance of the bladder neck and proximal urethra is caused by parasympathetic damage or terminal sympathetic damage or whether it results from the hydrodynamic effects of obstruction at the level of the striated sphincter is debated and unknown. Stress incontinence appeared to be associated with mode of delivery (Rortveit et al, 2003a, 2003b). McKinnie and associates (2005) studied 1004 women over an 18-month period to determine the relationship between urinary and fecal incontinence and type of delivery. In this study, pregnancy increased the overall risk of urinary and fecal incontinence, and there was no apparent relationship to mode of delivery. Patients completed validated questionnaires before surgery and up to 10 years after surgery. Significant differences were noted between the vaginal and abdominal approaches in terms of symptoms as measured by the Urogenital Distress Inventory and Defecation Distress Inventory questionnaires. Women who underwent hysterectomy by the vaginal approach were more likely to have micturition symptoms as compared with abdominal approach patients (18% vs. In addition, defecation symptoms also appeared to be more common after vaginal hysterectomy (58% vs. As compared with simple hysterectomy, radical hysterectomy may have more debilitating effects on bladder and bowel function. In a study of 209 patients undergoing radical hysterectomy for malignant disease with a survey return rate of 32% (66 of 209) (Brooks et al, 2009), 42% of patients undergoing radical hysterectomy reported mild incontinence symptoms as compared with 50% of controls. Radical hysterectomy in this group did not appear to be associated with more long-term bladder or anorectal dysfunction (Brooks et al, 2009). All 17 patients regained a normal or "balanced bladder" within 8 weeks, and no major urologic sequelae were noted. Urinary retention has also been reported to occur in association with anogenital herpes simplex virus infection. Caplan and colleagues (1977) reported 11 such patients with the typical clinical picture of herpes genitalis, all of whom developed urinary retention 2 to 7 days after the genital eruption. They termed the coexistence of bilateral involvement of the sacral nerve roots of rapid onset accompanied by sphincteric incontinence with cerebrospinal fluid pleocytosis the Elsberg syndrome and tabulated 47 such cases reported before their article. Haanpaa and Paavonen (2004) added 2 patients, both of whom had transient urinary retention but developed chronic neuropathic pain in the sacral area. DiabetesMellitus Diabetes is the most common cause of peripheral neuropathy in Europe and North America. The exact prevalence of diabetes in the United States is between 1% and 6%, depending on whether one includes only diagnosed patients and on what fasting blood glucose criteria are used for inclusion (the higher estimate of prevalence represents a recent reduction in blood glucose criteria to 126 mg/ dL) (Chancellor and Blaivas, 1995a; Goldman and Appell, 2000a). The predominant type of associated incontinence noted in this study was urge incontinence; no association between diabetes and stress incontinence was recognized (Danforth et al, 2009). HerpesvirusInfections Invasion of the sacral dorsal root ganglia and posterior nerve roots with herpes zoster virus may produce urinary retention and detrusor areflexia days to weeks after the other primary viral manifestations (Ryttov et al, 1985). In general, painful cutaneous eruptions secondary to the virus are also present, but initially the patient may have only fever, malaise, perineal and thigh paresthesias, and obstipation. Urinary incontinence secondary to detrusor overactivity may also occur, but the pathophysiology is unclear. It may be related to nerve root irritation, inflammation of the meninges or spinal cord, or "zoster cystitis" (Broseta et al, 1993). Cystoscopy may reveal vesicles in the bladder mucosa similar to those seen on the skin. Out of 57 patients with herpes zoster infection, 15 (26%) showed urologic manifestations, but only 2 had frank urinary retention (Broseta et al, 1993). Three patients demonstrated urinary incontinence, and all 3 demonstrated detrusor overactivity on urodynamics. Excluding those with cranial rather than spinal nerve involvement, the incidence was 8. Twelve of the 17 affected patients (71%) had voiding dysfunction caused by herpetic cystitis and had dysuria, frequency, retention, pyuria, or hematuria on presentation. The classic description of voiding dysfunction secondary to diabetes is that of a peripheral and autonomic neuropathy that first affects sensory afferent pathways, causing the insidious onset of impaired bladder sensation.

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Paraurethral tissue biopsy speci mens from premenopausal women with stress incontinence contain 30% more collagen erectile dysfunction caused by hemorrhoids vimax 30 caps order with amex, and the diameter of the fibrils is 30% larger than in controls (Falconer et al, 1998a). Postmenopausal stress incontinent women, on the other hand, have no difference in col lagen concentration compared with their agematched controls (Falconer et al, 1998b). Similar breakdown of the apical cells is thought to occur in most forms of infectious cystitis and also in radiation cystitis. Direct measurements of the osmotic effect on permeability have not been performed on urothelium. However, the urothelium maintains an osmotic gradient between plasma (approximately 300 mOsm/kg) and urine (100 to 1500 mOsm/kg), depending on the level of water balance and diuresis of the individual. In the normal bladder, the osmotic effects of the urine appear to go unno ticed, and the patients have few or no symptoms. Patients with spinal cord injury or with myelodysplasia tend to have chronic cystitis with bacteriuria and inflamed urothelium. When detrusor activity was increased in the rat by instillation of hyperosmolar compounds, this was accompanied by neurogenic inflammation, including plasma extravasation of Evans blue that could be decreased by pretreatment with the Cfiber afferent neu rotoxin capsaicin (Maggi et al, 1990), indicating that hyperosmo lar solutions excite afferent nerves. With increased osmolality, detrusor contractions were much stronger and accompanied by blood pressure elevations. These effects were enhanced when the bladder was pretreated with dimethyl sulfoxide to simulate cystitis conditions (Hohlbrugger and Lentsch, 1985; Hohlbrugger, 1987). In addition to these physiologic func tions (barrier function, host response to pathogens) of the urothe lium, the roles of urothelialafferent signaling and modulation of smooth muscle contractility are covered in later sections. BarrierFunction Epithelial permeability, including that of the urothelium, depends on a number of factors. These are passive diffusion, osmotically driven diffusion, active transport, and inertness of the membrane to the solutes to which it is exposed. Descriptions of finite passage of substances across the urothe lium are well known. In 1856, Kaupp reported that the composition and volume of urine were altered with 12hour voiding patterns instead of hourly voiding. These changes in volume have also been noted in rats during isovolumetric cystometrograms during 3hour periods (Sugaya et al, 1997), and the rate of water loss has also been estimated by direct measurement of passive water diffusion in vitro in the rabbit (Negrete et al, 1996). There is a passive permeability to most substances in the blood or urine (Hicks, 1975). In studies using an in vivo rat model, the bladder urothelium was permeable to urea, sodium, potassium, and chloride (Spector et al, 2011, 2013). The authors of these studies contend that the bladder modi fies the final urinary concentration of these solutes and that this modification depends on the hydration status and dietary protein (Spector et al, 2012). The human bladder urothelium is also permeable to water, because of expression of the water transport protein aquaporin (Rubenwolf et al, 2009, 2012). This value was obtained by estimating the absorption of tritiated water into the plasma after instillation of the tritiated water into the bladder of volunteers. A direct measurement of urothelial diffusive permeability in the human has not yet been made. Breakdown of the apical (umbrella) cells in animal models of cystitis has shown increased water and urea permeability. Presum ably, leakage of urinary solutes into the lamina propria is also responsible for the symptoms of cystitis (Lavelle et al, 1998, 2000). This increase in urothelial permeability with cystitis is increased further by distention of the bladder. Junctional complexes between cells include tight junctions, adherens, desmosomes, and gap junctions. After this treatment, no difference in the transcellular water and urea permeability was found (Lavelle et al, 1997). IonicTransport the apical membrane of the urothelium has a high electrical resis tance (Lavelle et al, 1998, 2000), whereas the basolateral mem brane resistance is approximately 10fold lower (Clausen et al, 1979). Active sodium transport across the urothelium has been demonstrated (Wickham, 1964; Lewis and Diamond, 1976). Na+ channels that exist on the apical surface of the umbrella cells and in the cytoplasmic vesicles below the apical surface are primarily amiloride sensitive (inhibition) and aldosterone responsive. However, amilorideinsensitive, cationselective, as well as amiloride insensitive, unstable cation channels have also been identified. Both of these channels were found to be degradation products of the amiloridesensitive Na+ channel. The amiloridesensitive Na+ channel is hydrolyzed by serine proteases such as kallikrein and urokinase and plasmin (normally found in the urine but produced by the kidney) (Lewis et al, 1995). Studies of rat bladders have shown that urea, sodium, potassium, and chloride can all cross the bladder urothelium and be taken up by suburothelial blood vessels (Spector et al, 2011, 2012, 2013). Sodium that is transported into the cell is removed at the baso lateral membrane by an Na+K+ exchanger. These channels and exchangers are important in recovery of cell volume during an increase in serosal osmolality (Donaldson and Lewis, 1990). Unfortunately, the precise role of the Na+ channel in the apical membrane of the umbrella cell is unknown. It is possible that the degradation of the channel might follow the filling of the bladder and that the changes in conductance of sodium may be a signaling factor for the bladder and micturition when it reaches capacity. Alternatively, it may be involved in the signaling pathway that allows insertion or removal of apical membrane on expansion of the bladder. These agents are known to have excitatory and inhibitory actions on afferent nerves that are close to or in the urothelium (Bean et al, 1990; Dmitrieva et al, 1998; Birder et al, 2001; Yoshimura et al, 2008). A video of urothelial cells responding to increasing doses of extracellular carbachol, a nonselective muscarinic agonist, with increasing concentrations of intracellular Ca2+ (fura2 ratio), is shown in the microfluorometry video on the Expert Consult website. Chemicals released from urothelial cells may act directly on afferent nerves or indirectly through an action on suburothelial interstitial cells (also referred to as myofibroblasts) that lie in close proximity to afferent nerves.

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Sensitization of pelvic afferent nerves in the in vitro rat urinary bladderpelvic nerve preparation by purinergic agonists and cyclo phosphamide pretreatment erectile dysfunction at age 20 generic vimax 30 caps mastercard. Mechanotransduction and chemosensi tivity of two major classes of bladder afferents with endings in the vicinity to the urothelium. Voiding function and dysfunction: relevant anatomy, physiology, pharmacology and molecular biology. Multiple P2X receptors on guineapig pelvic gan glion neurons exhibit novel pharmacological properties. Exogenous overexpression of nerve growth factor in the urinary bladder produces bladder overactivity and altered micturition circuitry in the lumbosacral spinal cord. Threedimensional distribution of sub stance Plike immunoreactivity in the urinary bladder of rat. Age related changes in the functional, biochemi cal and molecular properties of alpha1adrenoceptors in the rat genito urinary tract. Effects of age and hypertension on alpha1 adrenoceptors in the major source arteries of the rat bladder and penis. Agerelated changes in cholinergic and puriner gic neurotransmission in human isolated bladder smooth muscles. Bladder afferent pathway and spinal cord injury: possible mechanisms inducing hyperreflexia of the urinary bladder. Bladder overactivity and hyperexcitability of bladder afferent neurons after intrathecal delivery of nerve growth factor in rats. Increased excitability of afferent neurons inner vating rat urinary bladder after chronic bladder inflammation. Nitric oxide modulates Ca(2+) channels in dorsal root ganglion neurons innervating rat urinary bladder. Supraspinal and spinal alphaamino3 hydroxy5methylisoxazole4propionic acid and NmethylDaspartate 70 Pathophysiology and Classification of Lower Urinary Tract Dysfunction: Overview Alan J. For the purposes of description and teaching, the micturition cycle is best divided into two relatively discrete phases: bladder filling/urine storage and bladder emptying/voiding. The micturition cycle normally displays these two modes of operation in a simple on-off fashion. The cycle involves switching from inhibition of the voiding reflex and activation of the storage reflexes to inhibition of the storage reflexes and activation of the voiding reflex and back again. A simple way of looking at the pathophysiology of all types of voiding dysfunction is then presented, followed by a discussion of various systems of classification and categorization. Consistent with my own philosophy and prior attempts to make the understanding, evaluation, and management of voiding dysfunction as logical and simple as possible (Wein, 1981; Wein and Barrett, 1988; Wein, 2002), a functional and practical approach is favored. As an apology and explanation to significant contributors to the field whose works have not been specifically referenced by name as frequently as they could have been, citations have been chosen primarily because of their comprehensive review or informational content and not because of originality or initial publication on a particular subject except where noted. The first is that the micturition cycle involves two relatively discrete processes: (1) bladder filling and urine storage and (2) bladder emptying or voiding. The second is that, whatever the details involved, one can succinctly summarize these processes from a conceptual point of view as follows: Bladder filling and urine storage require: Accommodation of increasing volumes of urine at a low detrusor pressure (normal compliance) and with appropriate sensation. A bladder outlet that is closed at rest and remains so during increases in intra-abdominal pressure. Bladder emptying/voiding requires: A coordinated contraction of the bladder smooth musculature of adequate magnitude and duration. A concomitant lowering of resistance at the level of the smooth and striated sphincter (no functional obstruction). The smooth sphincter refers to the smooth musculature of the bladder neck and proximal urethra. This is a physiologic but not an anatomic sphincter and one that is not under voluntary control. The striated sphincter refers to the striated musculature that is a part of the outer wall of the proximal urethra in males and females (this portion is often referred to as the intrinsic or intramural striated sphincter or rhabdosphincter) and the bulky skeletal muscle group that closely surrounds the urethra at the level of the membranous portion in males and primarily the middle segment in females (often referred to as the extrinsic or extramural striated sphincter). The extramural portion is the classically described external urethral sphincter and is under voluntary control (for a detailed discussion see Chapter 69) (Brading et al, 2001; DeLancey et al, 2002; Zderic et al, 2002; Birder et al, 2013). This inhibitory effect is thought to be mediated primarily by sympathetic modulation of cholinergic ganglionic transmission. Through this reflex mechanism, two other possibilities exist for promoting filling/storage. One is neurally mediated stimulation of the predominantly -adrenergic receptors (1) in the area of the smooth sphincter, the net result of which would be to cause an increase in resistance in that area. The second is neurally mediated stimulation of the predominantly -adrenergic receptors (3 inhibitory) in the bladder body smooth musculature, which would cause a decrease in bladder wall tension. McGuire and colleagues (1983) have also proposed a direct inhibition of detrusor motor neurons in the sacral spinal cord during bladder filling related to increased afferent pudendal nerve activity generated by receptors in the striated sphincter. Good evidence also seems to exist to support an inhibitory effect of other neurotransmitters. Bladder filling and consequent wall distention may also result in the release of factors from the urothelium that may influence contractility. The general information is consistent with that detailed in Chapter 69 and in previous source materials and their supporting references (Wein and Barrett, 1988; de Groat et al, 1993, 1999; de Groat and Yoshimura, 2001; Zderic et al, 2002; Andersson and Arner, 2004; Andersson and Wein, 2004; Morrison et al, 2005; Mostwin et al, 2005; de Groat, 2006; Yoshimura and Chancellor, 2007; Fowler et al, 2008; Michel and Barendrecht, 2008; Beckel and Holstege, 2011; Birder et al, 2013; Koelbl et al, 2013; Ochodnicky et al, 2013; and Andersson, 2014). Other specific references are provided only when particularly unique or applicable. BladderResponseduringFilling the normal adult bladder response to filling at a physiologic rate is an almost imperceptible change in intravesical and detrusor pressure.

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The authors also believe that stress incontinence in men with myelodysplasia may follow similar general rules as in women erectile dysfunction medicine in dubai order vimax with a visa, and bulking agents may give good results in this group as well. When the urethra is very widely dilated and somewhat rigid, and neither procedure alone will provide sufficient coaptation, it may be possible to combine a "prostatic sling" with periurethral bulking. Nowhere is the failure of a neurologic examination to predict urodynamic behavior more obvious than in patients with myelomeningocele. Van Gool and colleagues (2001) categorized the urodynamic findings in 188 children with myelomeningocele into five groups: (1) normal detrusor and sphincter activity (7%); (2) detrusor overactivity and an inactive sphincter (11%); (3) detrusor overactivity and an overactive sphincter (45%); inactive detrusor and inactive sphincter (23%); and (5) an inactive detrusor and an overactive sphincter (14%). Webster and colleagues (1986) reported that 62% of their patients with myelomeningocele had detrusor overactivity, whereas 38% had detrusor areflexia. Thirty of 34 patients in the latter group had low compliance with high terminal filling pressures. Delayed diagnosis of such voiding dysfunction has been reported by several authors (Jakobsen et al, 1985; Yip et al, 1985) and the specific dysfunction is dependent on the level and extent of the neurologic injury. The urologic rehabilitation of patients with spinal dysraphism relies primarily on medical management and intravesical injection of onabotulinumtoxinA, with the selective use of augmentation enterocystoplasty or urinary diversion if failure occurs. Overall incontinence episodes were higher in the surgical management group; however, these outcomes may have been reflective of the aggressiveness of management as well as the severity of disease (Lemelle et al, 2006). Two patients in the nonsurgical group had urologic improvement at a mean follow-up of 3 years; however, three patients required surgical intervention and five had persistence of nonurologic symptoms. Thus, section of the cord appeared to improve function as compared with conservative, nonsurgical management. In a retrospective assessment of 29 patients undergoing first-time tethered cord release, clinical symptoms were evaluated at 1 and 3 months after surgery as well as every 6 months thereafter. GarcesAmbrossi and coworkers (2009) addressed rates of improvement in motor and urinary dysfunction over time. The most common causes of tethered cord included lipomyelomeningocele (10%), tight filum (10%), lumbosacral lipoma (14%), intradural tumor (10%), and previous surgery in 7%. Symptomatic presentation included diffuse pain and paresthesias in both lower extremities (45%) or perineum (62%). Lower extremity weakness was noted in patients with gait disturbances (59%) and bladder dysfunction (48%). Multilevel laminectomy accompanied by duraplasty (30% of patients) was performed as the primary intervention. At 18 months postoperatively, 47% of the patients with urinary symptoms had improvement in those symptoms, 69% had improvement in the lower extremity weakness, and 79% had improved painful dysesthesias. The majority of patients demonstrated improvement within 6 months of surgery (96%). Recent emphasis on transitional aspects of care from childhood to adulthood has centered on the need for meticulous follow-up and optimization of bladder and renal function in light of social stigma, patient concerns, independence, and also bowel-related dysfunction. Consensus agreement stresses the need for established algorithmic approaches for follow-up inclusive of annual surveillance for early identification of urinary tract deterioration. These assessments should include renal and bladder ultrasonography and urodynamics when indicated (by symptomatic change or clinical physical examination finding). In addition, serum creatinine and renal scintigraphy may be performed when upper tract changes are suspected. Goals of therapy include reduction in detrusor pressure and maintenance of bladder compliance and social continence (de Kort et al, 2012). Those with bilateral dysfunction had a significantly higher risk of detrusor overactivity during childhood urodynamic evaluation (63%) compared with those with normal function (24%). Eight patients required surgical intervention sometime during the course of their condition. Nine used regular antimuscarinic ingestion, and 3 had had intravesical botulinum toxin injection. Therefore urodynamic findings may be predictive of long-term consequences (Thorup et al, 2011). Surgery remains a salvage option for those not optimally managed by medical intervention. A recent assessment of national data practices using administrative data sets from a nationwide inpatient sample assessed patients undergoing bladder augmentation versus ileal conduit urinary diversion over a 7-year timeframe (1998 to 2005) for the primary diagnosis of spina bifida. Overall, 3403 patients underwent bladder augmentation, whereas 772 underwent ileal loop diversion. Urinary diversion was more commonly associated with the female patients as well as older patients. Overall, those undergoing urinary diversion had higher health care expenses and longer hospital stays. There was some difference in care choice based on insurance status (Wiener et al, 2011). Recently, neural rerouting has been proposed as a potential option for some of these individuals. Ziao and colleagues have performed microanastomosis of the fifth lumbar ventral root to the third sacral ventral root to bypass low-level spina bifida injury. The anchoring structures can include scar from prior surgery, fibrous or fibroadipose filum terminale, a bony septum, or tumor (Yamada et al, 2004a, 2004b). Giddens and colleagues (1999) point out that, whereas children often develop symptoms of tethered cord after growth spurts, in adults the presenting symptomatology often follows activities that stretch the spine, such as sports or motor vehicle accidents. In adults, urologic presentation can include storage or voiding symptoms, incontinence, or complete retention. In a group of adult patients, urgency (67%) and urgency incontinence (50%) were the most common findings at presentation. It is interesting that postoperative urodynamic findings improved in only 29% and were unchanged in 71%.

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Comparison of normetanephrine levels before and after clonidine administration has been shown to yield results with favorable test characteristics (Eisenhofer et al erectile dysfunction treatment charlotte nc generic vimax 30 caps on line, 2003b). This evaluation is suggested by some experts for secondary testing in patients with pheochromocytoma who exhibit mild or borderline elevations in metanephrine levels. When embarking on clonidine suppression testing, one must be cognizant that clonidine administration can result in significant hypotension in certain patients (Eisenhofer et al, 2003b). Chromogranin A belongs to a group of compounds known as granins, which exist in the secretory vesicles of the neuroendocrine and the nervous systems. Elevation of serum chromogranin A levels has been documented in patients with pheochromocytoma. Although the sensitivity of the test for detecting pheochromocytoma is suboptimal (approximately 85%), some have suggested that the evaluation of chromogranin A level has a role in confirmatory testing in patients who have mild or moderate (less than a fourfold) elevation in free plasma metanephrine levels (Bravo and Tagle, 2003; Algeciras-Schimnich et al, 2008). Chromogranin A is renally cleared, and the specificity of the test decreases significantly in patients with glomerular filtration rates less than 80 mL/min (Bravo and Tagle, 2003). Furthermore, nearly one quarter of patients who appear to have sporadic nonfamilial disease at diagnosis demonstrate germline mutations on genetic testing (Neumann et al, 2002; Benn and Robinson, 2006). Despite this, the consensus of the First International Symposium on Pheochromocytoma in 2005 did not endorse universal genetic testing in all patients diagnosed with pheochromocytoma. Instead, this panel of experts established guidelines for screening and evaluation for pheochromocytoma. Before initiating genetic testing, the patient should be counseled about implications and benefits of genetic testing. Complete resection of the tumor is advised whenever possible (KhorramManesh et al, 2005). Laparoscopic adrenalectomy constitutes the standard of care for most tumors, although open approaches have been advocated for large and/or surgically difficult tumors (Pacak et al, 2007). Please see Chapter 66 regarding surgical considerations when treating patients with pheochromocytoma. The urologist must be familiar with the perioperative management of catecholamineproducing tumors before taking the patient to the operating room. Patients with familial and malignant disease require a tailored approach that should include cardiology, endocrinology, and, if needed, medical oncology. Catecholamine release during intraoperative tumor manipulation can result in hazardous blood pressure elevation and cardiac arrhythmias. In the era before routine initiation of preoperative catecholamine blockade, some reported mortality rates as high as 50% (Pacak et al, 2001b). In 2005, the First International Symposium on Pheochromocytoma recommended that all patients with pheochromocytoma and an abnormal metabolic evaluation undergo preoperative catecholamine blockade, including patients who do not exhibit evidence of blood pressure elevation and lack classic symptomatology (Pacak, 2007). Contemporary series demonstrate mortality rates of less than 3%, which has been attributed in part to optimized anesthetic care and routine preoperative blockade (Lenders et al, 2005). In the absence of appropriately conducted clinical studies comparing preoperative management strategies, no level 1 evidence exists regarding optimal preoperative or perioperative management (Pacak, 2007). Other permutations on approaches to preoperative catecholamine blockade exist but are less widely discussed in the literature (Pacak, 2007). Thoughtful preoperative cardiac evaluation is paramount, because patients with pheochromocytoma are at risk for cardiomyopathy. Some experts recommend routine preoperative echocardiography (Kinney et al, 2002). We suggest that the patient undergo either a cardiology or an anesthesia consultation before surgery. Phenoxybenzamine is the most common blocker used for preoperative catecholamine blockade of pheochromocytoma. Accordingly, intraoperative catecholamine surges typically do not override its actions, because reversal of the blockade is possible only through synthesis of new receptor molecules (Pacak, 2007). Oral administration of 10 mg twice daily is initiated and titrated by increases of 10 to 20 mg to a blood pressure of 120 to 130/80 mm Hg in a seated position. Mild postural hypotension with systolic pressure greater than 80 mm Hg is acceptable (Kinney et al, 2002). Experience shows that a final dose of 1 mg/kg is usually sufficient to achieve adequate blockade (Pacak, 2007). Because of the irreversible nature of -blockade, after tumor resection patients may require transient blood pressure support (Pacak, 2007). Selective reversible 1-blockers, such as terazosin, doxazosin, or prazosin, are used at some centers in lieu of or in combination with phenoxybenzamine. Although these agents may have fewer side effects than phenoxybenzamine, data regarding their efficacy are contradictory (Lenders et al, 2005; Pacak, 2007). Moreover, recent compelling data are emerging that in normotensive asymptom- atic patients, preoperative -blockade may not be necessary. In one report a large cohort of asymptomatic normotensive patients with incidentaloma and a metabolic workup suggestive of pheochromocytoma was offered either -blockade with doxazosin (n = 38) or no preoperative blockade (n = 21) (Shao et al, 2011). No differences in blood pressure control or perioperative outcomes were seen between the two groups. The group that received doxazosin was more likely to require intraoperative administration of vasoactive agents (Shao et al, 2011). Although these data are provocative, they require validation from other centers, ideally in a prospective randomized fashion. Lifelong screening for recurrence is recommended by some experts, because 10-year recurrence rates are as high as 16% in some series of fully resected lesions (Amar et al, 2005b; Plouin and Gimenez-Roqueplo, 2006a). Indeed, recurrent disease has been noted in patients more than 15 years after resection of the original tumor (Plouin et al, 1997; Goldstein et al, 1999). Annual biochemical follow-up is mandatory for all patients with resected pheochromocytoma (Eisenhofer et al, 2004a; Lenders et al, 2005).

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Using these needles erectile dysfunction at the age of 30 cheap vimax 30 caps on line, the amount of tissue destruction could be controlled along the central axis of the lesion by adjusting the length of the exposed, uninsulated portion of the needle. Although effective in ablating along the long axis of the lesion, these initial probes were limited in their ability to create circumferential tissue damage, preventing their use in lesions greater than 1. Temperature-based systems work by measuring tissue temperatures at the tip of the electrode and are based on achieving a specific temperature for a given period. These systems accurately measure the temperature of the tissue at the electrode tip; however, they do not measure the temperature of the surrounding parenchyma. Alternatively, impedance-based systems measure the tissue impedance (resistance to alternating current) at the electrode tip and are based on achieving a predetermined impedance level that indicates complete tissue ablation. Although these systems are able to measure actual tissue desiccation at the electrode tip, they have been associated with incomplete ablation in animal models (Gettman, 2002a). There are no explicit clinical data that support the superiority of impedance or temperature-based systems. The original ablation probes, which were designed as single electrode monopolar probes controlled by varying the exposed uninsulated tip, were capable of treating tumors no greater than 2 cm (McGahan et al, 1993). Therefore the treatment of larger tumors or the acquisition of an adequate tumor margin often required additional probes or re-treatment of overlapping regions. Multiple systems have been developed in an attempt to achieve a larger overall treatment volume. When high impedance is encountered at one prong, current is redirected to areas of lower impedance. As stated, alternating radiofrequecy current creates cellular agitation and, as a result of electrical impedance of the tissue, local heating. Provided that electrical impedance remains low, an expanding sphere of tissue damage emanates outward from the treatment probe. If current is administered too rapidly or the amount of radiofrequency energy applied is too high, charring occurs, which reduces the water content of the tissue. Charring and dehydration then may lead to increased electrical impedance, blocking energy transfer and halting the heating process (Djavan et al, 2000; Finelli et al, 2003). It is also important to reach a minimum target temperature at which cellular death occurs. Impedance-based systems are typically started at 40 to 80 W and increased at 10 W/min to a maximum of 130 to 200 W until an impedance of 200 to 500 ohms is reached. In particular, when the target zone is highly vascularized or is adjacent to large vessels, thermal energy is preferentially dispersed to the comparatively cooler blood within these vessels. This heat sink effect may therefore spare tumor cells in close proximity to large blood vessels and lead to treatment failures. However, hilar occlusion is not currently recommended because of the risk for arterial thrombosis and ischemia-reperfusion injury to normal parenchyma. At 3 months after ablation, a biopsy revealed fibrous tissue and necrotic cellular debris with no evidence of malignancy. The authors have successfully employed this same technique in a few central or large (>4 cm) tumors to reduce the circulatory heat sink. Regardless, the procedure is generally performed on an outpatient basis or 23-hour observation. General endotracheal anesthesia enables control of respiration during probe placement and tumor biopsy that may translate into more accurate targeting and improved overall outcomes (Gupta et al, 2009). Using this finder needle as a guide, the ablation probe(s) is then positioned to treat the tumor. If a tumor biopsy has not been performed, an 18-gauge core biopsy needle is inserted percutaneously and positioning is again confirmed with repeat imaging. Biopsy specimens are obtained and sent for permanent section before the initiation of therapy. Importantly, the treatment probes should be placed into the tumor before the biopsy because perinephric hematoma formation may obscure visualization of the tumor. Probe and biopsy needle positioning and adjustments are all performed with breath holding to standardize the position of the mobile kidney with each sequential pass of the needle. As previously mentioned in the section on mechanism of action, two freeze-thaw cycles are performed to obtain more complete tissue necrosis (Woolley et al, 2002). Using this method, Carey and Leveillee (2007) demonstrated 100% clinical success in treating tumors up to 5 cm in diameter. Experimental imaging modalities, including real-time contrast-enhanced ultrasonography (Johnson et al, 2005; Chen et al, 2013) and magnetic resonance elastography (Li and colleagues, 2013) have shown some promise experimentally, but have not been properly evaluated in the clinical setting. B,Intraoperativeimage during percutaneous ablations shows low attenuation area corresponding to the ice ball. Thus 10-minute freeze cycles represent an optimal compromise with adequate tumor necrosis and fewer complications (Auge et al, 2006).

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The lymphatic drainage is also similar to the testicle and drains into the lateral aortic and preaortic nodes near the kidneys impotence at 30 years old generic 30 caps vimax free shipping. There are columns that run on the anterior and posterior walls terminating at the urethrovaginal ridge or carina. The vagina is composed of a mucous membrane and lamina propria that are fixed to the muscular layer. The muscle has an outer longitudinal and an inner circular layer that are attached to the rectovesical fascia on either side. The vaginal wall is attached to the cervix higher on the posterior wall compared to the anterior wall. There are remnants of the ducts of Gartner that can protrude through the lateral fornices of the vagina, and when obstructed they can lead to Gartner cysts. The vagina is attached anteriorly by the levator ani at the arcus tendineus and posteriorly to the rectovaginal septum. The base of the bladder rests on the vaginal wall and is tethered together by smooth muscle fibers that need to be opened to access the vesicovaginal space. The ureters pass close to the lateral fornices of the vagina and are anterior to the vagina as they enter the bladder. Access to the retropubic space can be obtained by incising the anterior vaginal wall on either side of the urethra. The middle and inferior portion of the vagina are supplied by the vaginal arteries (branches of the uterine and middle rectal artery). The vaginal venous plexus joins the uterine plexus to form the uterovaginal venous plexus. The superior portion of the vagina includes lymphatic drainage into the internal and external iliac lymph nodes. The middle portion drains into the internal iliac lymph nodes, and the inferior portion into the sacral and common iliac nodes as well as the superficial inguinal nodes. The vagina has autonomic innervation from the uterovaginal plexus (sympathetic, parasympathetic, and visceral afferent fibers), which travels at the base of the broad ligament. The lower one fourth of the vagina also has somatic innervation from the pudendal nerve and is sensitive to touch and to temperature changes. Whether or not there is any true fascia at the anterior vaginal wall is controversial. The pubocervical fascia that extends from the pubic symphysis to the cervix (another disputable structure) may provide additional support to the bladder base (Herschorn, 2004). The cardinal ligaments and uterosacral ligaments also provide additional support to the uterus, cervix, and upper vagina. This is level I support as originally described by DeLancey (Wei and DeLancey, 2004), which supports the uterus and the vaginal apex. The broad ligament and round ligament do not play a significant role in pelvic organ support (Barber, 2005). Weakness of the lateral attachments of the cardinal ligaments or vesicopelvic ligaments leads to lateral cystocele defects. The posterior vaginal wall is supported by the paracolpium that attaches to the rectovaginal fascia (Herschorn, 2004). This sheet of fascia at its medial aspect of the vagina is sometimes referred to as the rectal pillars (Ashton-Miller and DeLancey, 2007). Laterally it attaches to the levator ani muscles and fuses with the perineal body. The urethra is composed of three anatomic layers: (1) epithelium, (2) submucosa, and (3) mucosa. The urethra is made up of the transitional epithelium with multiple infoldings that allow distensibility and coaptation on closure. This transitions to the pseudostratified and squamous epithelium at the most distal portion. The mucosa and submucosa are the primary contributors to urethral closure pressure and are estrogen dependent. There is a proximal and distal venous plexus that runs under the epithelium that may also play a role in urethral closure. There are many periurethral glands around the urethra that, when obstructed, can give rise to diverticula. External to the urethra are two layers of smooth muscle, an inner longitudinal and an outer circular, which are continuous with the muscle layers of the bladder and constitute the involuntary urethral sphincter. The longitudinal fibers shorten the urethra and increase the diameter for voiding (MacLennan, 2012). At the distal two thirds of the urethra, the voluntary sphincter is present, which is composed of striated muscle. At the most proximal portion (midurethra) it forms a horseshoe around the urethra. There are muscle fibers on the lateral sides of the urethra that are continuous with the anterior and lateral walls of the vagina (urethral compressor). When they contract, it results in closure of the urethra against the anterior vaginal wall. There are additional fibers that surround both the urethra and the vagina that compose the urethrovaginal sphincter. The pubococcygeus runs alongside the urethra on either side and has some function to increase resistance in the urethra.

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The role of preoperative testing on outcomes after sling surgery for stress urinary incontinence erectile dysfunction after drug use purchase cheap vimax on line. Managing the urethra at transvaginal pelvic organ prolapse repair: a urodynamic approach. Psychometric evaluation of 2 comprehensive condition-specific quality of life instruments for women with pelvic floor disorders. Urodynamic appraisal of the Marshal-Marchetti test in women with stress urinary incontinence. Predicting postoperative urinary incontinence development in women undergoing operation for genitourinary prolapse. Detrusor-external sphincter dyssynergia in men with multiple sclerosis: an ominous urologic condition. The risk of developing urinary stress incontinence after vaginal repair in continent women: a clinical and urodynamic follow-up study. The one-hour pad-weighing test: reproducibility and the correlation between the test result, the start volume in the bladder and the diuresis. Outcome measures for research in adult women with symptoms of lower urinary tract dysfunction. Construction and validation of a shortform benign prostatic hypertrophy health-related quality-of-life questionnaire. Systemic review and meta-analysis of methods of diagnostic assessment for urinary incontinence. Objective assessment of urinary incontinence in women: comparison of the one-hour and 24 hour pad tests. A comparison between magnetic resonance imaging and videoproctography in patients with constipation. Agreement between clinical methods of measurement of urinary frequency and functional bladder capacity. Global prevalence and economic burden of urgency urinary incontinence: a systemic review. Urinary incontinence: epidemiology, pathophysiology, evaluation, and management overview. A validated patient reported measure of urinary urgency severity in overactive bladder for use in clinical trials. Visual assessment of uroflowmetry curves: description and interpretation by urodynamicists. Portable ultrasonography and bladder volume accuracy: a comparative study using three-dimensional ultrasonography. The value of leak pressure and bladder compliance in the urodynamic evaluation of meningomyelocele patients. Dynamic half-Fourier acquisition, single shot turbo spin echo magnetic resonance imaging for evaluating the female pelvis. Noninvasive outcome measures o urinary incontinence and lower urinary tract symptoms: a multicenter study of micturition diary and pad tests. The reproducibility of urodynamic findings in healthy female volunteers: results of repeated studies in the same setting and at short-term follow-up. Costs of urinary incontinence and overactive bladder in the United States: a comparative study. The 24-hour pad test in continent women and men: normal values and cyclical alternations. Prospective comparative study between data from questionnaire and frequency-volume chart. Short forms to assess life quality and symptom distress for urinary incontinence in women: the Incontinence Impact Questionnaire and the Urogenital Distress Inventory, Continence Program for Women Research Group. Urogynecologic surgical mesh: update on the safety and effectiveness of vaginal placement for pelvic organ prolapse, <. Patient reported outcomes tools in an observational study of female stress urinary incontinence. Quality of life of persons with urinary incontinence: development of a new measure. Cost-effectiveness of urodynamic testing before surgery for women with pelvic organ prolapse and stress urinary incontinence. Reliability and agreement of urodynamics interpretations in a female pelvic medicine center. Comparison of 20-minute pad test versus onehour pad test in women with stress urinary incontinence. Urinary Incontinence Treatment Network: Inter-rater reliability of filling cystometrogram interpretation in a multicenter study. Clinical relevance of urodynamic investigation tests prior to surgical correction of genital prolapse: a literature review. Does urodynamic investigation improve outcome in patients undergoing prolapse surgery No relationship between subjective assessment of urinary incontinence and pad test weight gain in a random population sample of menopausal women. Validity and reliability of an interviewer-administered questionnaire to measure the severity of lower urinary tract symptoms of storage abnormality: the Leicester Urinary Symptoms Questionnaire. Inadequate repeatability of the one-hour pad test: the need for a new incontinence outcome measure. Post hoc interpretation of urodynamic evaluation is qualitatively different than interpretation at the time of urodynamic study. Visual analogue scale, urinary incontinence severity score and 15 D: psychometric testing of three different health-related quality-of-life instruments for urinary incontinent women.

Yugul, 28 years: Gating of maxi K+ channels studied by Ca2+ concentration jumps in excised insideout multichannel patches (myo cytes from guinea pig urinary bladder).

Snorre, 44 years: The V2 subtype is particularly important for the antidiuretic effects of vasopressin.

Kayor, 30 years: Multiple intravesical instillation of low-dose resiniferatoxin is effective in the treatment of detrusor overactivity refractory to anticholinergics.

Hassan, 27 years: Activation of muscarinic receptors in rat bladder sensory pathways alters reflex bladder activity.

Charles, 26 years: In reality, when treating impaired compliance, expert opinion leans toward the concept of aiming for as low a pressure as is "reasonably achievable" (Rosier et al, 2013).

Dimitar, 48 years: This cutoff affords a sensitivity of 71% and a specificity of 98% for the diagnosis of adrenal adenomas (Boland et al, 1998, 2008).

Alima, 63 years: Approximately 50% opted for dose escalation to 8 mg at in three double-blind 12-week studies (Khullar et al, 2011).

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