Mean Postvoid Residual Urine Volume Research Articles

Success of endoscopic prostatic surgery in patients with DUA: a prospective observational and analytic study

Introduction: Detrusor underactivity (DUA) is a highly prevalent and poorly understood disease in urology practice. Conservative treatment in the form of clean intermittent catheterization (CIC) and pharmacotherapy are in use for DUA without good results. Endoscopic prostate surgery was initially considered ineffective in such patients. But a recent series of retrospective studies showed promising results of surgery in DUA. Therefore, we conducted this prospective study to evaluate success of endoscopic prostatic surgery in a patient with DUA. Materials and methods: This is prospective observational study of 50 patients, satisfying the inclusion criteria, at Ruby Hall Clinic, Pune, conducted between March 2017 and March 2019. Inclusion criteria are that the patients are male, aged > 50 years; urodynamically diagnosed with DUA; a bladder contractility index < 90 with associated bladder outlet obstruction index (BOOI) between 20–40 (equivocal) or > 40 (obstruction), who presented with lower urinary tract symptoms and poor flow ( Qmax < 10 ml/s in a voided volume of >150 ml. Patients were excluded from the study if they had DUA due to neurological causes or spinal trauma, an acontractile detrusor, and were < 50 years. Results: The follow-up period for each patient was 12 months. The mean international prostate specific score reduced from 24.82 ± 2.74 preoperatively to 4.4 ± 1.85 postoperatively. Mean quality of life score reduced from 4.06 ± 0.68 to 0.82 ± 0.62. Mean Qmax increased from 6.26 ±1.46 ml/s to 12.22 ±1.6 ml/s. Mean post-void residual urine volume reduced form 241.9 ±74.9 to 77.3 ±20.75. All of these were statistically significant with a p value < 0.00001. Conclusion: Transurethral resection of the prostate (monopolar/laser) to reduce BOO should be considered as an alternative, viable treatment option in men with DUA. Preoperative counselling and postoperative follow-up are crucial in the management of such patients. Level of evidence:

Safety and efficacy of prostatic artery embolization for large benign prostatic hyperplasia in elderly patients.

ObjectiveTo assess the safety and efficacy of prostatic arterial embolization (PAE) for elderly patients with lower urinary tract symptoms secondary to large benign prostatic hyperplasia.MethodsTwenty-eight patients (>80 years of age) with prostate volume >80 mL were enrolled from October 2016 to October 2019. PAE was performed using microspheres and functional results were evaluated at 1, 3, 6, and 12 months postoperatively. The following data were recorded: International Prostate Symptom Score (IPSS), quality of life (QoL), maximum urine flow rate (Qmax), post-void residual urine volume, prostate volume and total prostate-specific antigen level.ResultsSelective prostatic arterial catheterization and embolization were achieved in 27 of 28 patients. Follow-up data were available for those 27 patients until 12 months postoperatively. Significant improvements were found at all postoperative time points in terms of the mean IPSS, mean QoL score, mean Qmax, mean post-void residual urine volume, mean total prostate-specific antigen level, and mean prostate volume. The overall complication rate was 46.4%.ConclusionsPAE is an efficacious and safe treatment for elderly patients with large prostate volume; it may offer an effective approach for patients who are not candidates for open or endoscopic surgical procedures because of comorbidities.

Urological dysfunctions in patients with Parkinson\u2019s disease: clues from clinical and non-invasive urological assessment

BackgroundAutonomic nervous system dysfunction, common in patients with Parkinson’s disease (PD), causes significant morbidity and it is correlated with poor quality of life. To assess frequency of urinary symptoms in patients with PD, without conditions known to interfere with urinary function.MethodsNon-demented PD patients were consecutively enrolled from the outpatients clinic of our department. Scales investigating motor and non-motor symptoms were carried out. Evaluation of urinary dysfunctions was carried out using the AUTonomic Scale for Outcomes in Parkinson’s disease (SCOPA-AUT) questionnaire. Patients underwent noninvasive urological studies (nUS), including uroflowmetry and ultrasound of the urinary tract.ResultsForty-eight (20 women, 42%) out of 187 PD patients met the inclusion criteria and were enrolled in the study. Mean SCOPA-AUT score was 14.1 ± 6.9 (urinary symptoms subscore 5.2 ± 3.8). Among those evaluated by the SCOPA-AUT scale, the urinary symptoms were among the most common complaints (93.8%). At nUS mean maximum flow rate (Qmax) was 17.9 ± 9.1 ml/s, and mean postvoid residual (PVR) urine volume was 24.4 ± 44.1 ml. Ultrasound investigation documented prostate hypertrophy in 12 male patients (42.8%). Urinary items of the SCOPA-AUT (SCOPA-U subscore) correlated with measures of disease severity only in female patients.ConclusionUrinary symptoms and abnormal findings in nUS are common in PD. Though nigrostriatal degeneration might be responsible for urinary symptoms also in the early-intermediate stage of the disease, when urinary dysfunction occurs other medical conditions need to be excluded.

Neurologic diseases that cause female urinary retention

Objective: The pathogenesis of female urinary retention is not well known. Hence, we systematically investigated the frequency of diseases that underlie female urinary retention in a urodynamic laboratory.Methods: We analyzed data from 450 consecutive female patients. Data registries included the diagnosis, lower urinary tract symptom questionnaires, urodynamic study results, and neurologic exam observations. Complete urinary retention is defined as mean post-void residual (PVR) urine volume > 100 ml with no voluntary void at all; whereas incomplete urinary retention is defined as mean PVR urine volume > 100 ml after voluntary partial void.Results: Sixty of the 450 female patients visiting our lab (13%) had urinary retention with 4 (6.7%) of these having complete retention and 56 (93.3%) having incomplete retention. The most common underlying disease in these 60 patients was lumbar spondylosis (LS), 38.3% (with 16 patients having LS alone and 7 having LS & diabetic distal polyneuropathy [DPN]), multiple system atrophy (MSA), 18.3%, and DPN, 14.4% (with 2 patients having DPN alone and 7 having LS & DPN), followed by drug-induced retention (e.g., by antidepressants), 8.3%, acute myelitis of possible demyelinating origin, 5.0%, and other etiologies. An underactive detrusor was the major urodynamic findings in those patients.Conclusion: The present study revealed that common etiologies for female urinary retention are neurologic, e.g., an underactive detrusor due to MSA, age-related LS, and lifestyle-related DPN. Therefore LS and DPN, both common diseases, should also become major treatment targets in order to maximize patients’ quality of life.

Early and late urodynamic assessment of the orthotopic N-shaped neobladder

The present study aimed to report the urodynamic data from 46 male patients who underwent an orthotopic N-shaped neobladder replacement following a radical cystectomy during a 12-month period and to provide urodynamic evidence for the improvement of this technique. A total of 46 consecutive male patients underwent a radical cystectomy and orthotopic N-shaped neobladder substitution due to muscle-invasive bladder cancer. Uroflowmetry, cystometry and urethral pressure profilometry were analyzed at 3–12 months following the surgery. The mean pressure of the neobladders was <15 cm H2O at volumes of <400 ml and 22.4 cm H2O at 100% capacity at 6 months. The mean pressure of the contractions was <40 cm H2O at 6 months. The mean filling pressure following the surgery at 3 months was higher compared with that at 6 months. No difference was observed at the other time-points. When comparing the 9- and 12-month urodynamic characteristics, no significant changes were observed in the cystometric capacity. The mean post-void residual (PVR) urine volume was 58 ml. A mean voiding peak of 16.2 ml/sec was obtained using the Valsalva maneuver. The daytime continence rate was 90% at 12 months while the night-time continence rate was 60%.

Urodynamic Differences Between Dysfunctional Voiding and Primary Bladder Neck Obstruction in Women

To determine the clinical and urodynamic differences in the presentation and the value of simultaneous fluoroscopy in dysfunctional voiding (DV) and primary bladder neck obstruction (PBNO); the 2 most common causes of non-neurogenic "functional" bladder outlet obstruction in women. A review of our urodynamic study database (March 2003 to August 2009) was conducted. DV was diagnosed when increased external sphincter activity was found during voluntary voiding on electromyography (EMG) or fluoroscopy. PBNO was diagnosed when a failure of bladder neck opening was noted on fluoroscopy during voiding. The demographics, symptoms, and urodynamic study parameters were collected. Comparisons were done using chi-square and 2-tailed t-tests. DV was diagnosed in 34 women and PBNO in 16. The patients with DV were younger than those with PBNO (40.9 vs 59.2 years, P < .001). Women with DV showed a clinical trend toward having more storage symptoms than those with PBNO and fewer voiding symptoms. Patients with DV had a greater mean maximal flow rate (12 vs 7 mL/s, P = .027) and lower mean postvoid residual urine volume (125 vs 400 mL, P = .012). No significant differences were found in maximal detrusor pressure, detrusor pressure at maximal flow rate, or detrusor overactivity. EMG showed increased activity during voiding in 79.4% of those with DV and 14.3% of those with PBNO (P < .001). Clinically, women with DV and PBNO had similar presentations, although those with PBNO had poorer emptying. The flow rates and patterns seemed to differ between those with DV and PBNO, although the voiding pressures were similar. EMG alone would have given the wrong diagnosis in 20.6% of those with DV (false negative) and 14.3% of those with PBNO (false positive). When fluoroscopy is used to define these entities, the accuracy of EMG to differentiate them is questionable.

Modified Transurethral Incision for Primary Bladder Neck Obstruction in Women: A Method to Improve Voiding Function Without Urinary Incontinence

To describe the modified surgical technique and report the long-term outcomes of modified transurethral incision for the treatment of primary bladder neck obstruction in women. A total of 30 women were diagnosed with primary bladder neck obstruction from the videourodynamic study findings according to the Blaivas-Groutz nomogram for female bladder outlet obstruction. Patients with neurogenic, traumatic, anatomic, or iatrogenic causes of obstruction were excluded. The transurethral incision of the bladder neck was performed in all patients, with the modification of incising at 4 different sites on the bladder neck, at the 3-, 6-, 9-, and 12-o'clock positions. The urodynamic results and clinical improvement in voiding symptoms were assessed before surgery and 3, 48, and 60 months after treatment. Follow-up data were available for 30 (100%), 28 (93%), and 25 (83%) of the 30 patients at 3, 48, and 60 months postoperatively, respectively. During the 5-year follow-up, the mean International Prostate Symptom Score decreased from 23.3 to 5.9. The mean quality of life scores decreased from 4.4 to 2.1. The mean peak urinary flow rate increased from 7.61 to 17.53 mL/s. The mean postvoid residual urine volume decreased from 185.11 to 28.75 mL. The mean voiding detrusor pressure decreased from 62.12 to 21.92 cm H2O. All 25 patients had improvement in both objective and subjective voiding functions 5 years after this modified treatment. Only 1 woman (3%) had mild stress incontinence postoperatively and was cured after the patient performed levator ani exercises. The modified transurethral bladder neck incision is effective in the long term in relieving voiding difficulties owing to primary bladder neck obstruction in women without urinary incontinence.

A retrospective analysis of transurethral vapor resection of the prostate versus transvesical prostatectomy for prostate greater than 50 ml

We compared the safety and efficacy of transurethral vapor resection (TUVRP) and transvesical prostatectomy (TVP) for prostate > 50 ml in retrospective study. Ninety patients with urodynamic obstruction and prostate volume (PV) in range between 50 and 100 ml were analyzed according to the mode of operative treatment (TUVRP vs. TVP). Patients were assessed preoperatively and followed-up at 3 and 12 months postoperatively. All patients underwent general and urological standard evaluation before surgery, including urine analysis, urine culture, blood samples tests, with determination of PSA, DRE, abdominal and minor pelvis ultrasound (US), transrectal ultrasound (TRUS), maximal flow rate (Qmax), postvoid residual urine(PVR), and self assessment by International Prostate Symptom Score (IPSS) and Quality of Life Score (QoLS). Urethrocystoscopy was obligatory done before TUVRP. TRUS-guided biopsies of the prostate were performed in patients with PSA > 4 ng/ml, abnormal DRE, and/or suspicious echogenicity on TRUS. IPSS, QoLS, Qmax and PVR were obtained at each follow-up. Of 90 patients eligible to participate, 69 patients completed 12 months of follow-up (TUVRP, n=35; TVP, n=36). TUVRP procedure was not faster than TVP procedure (P=0.41); 43.6% and 84.8% of prostatic tissues were resected after TUVRP and TVP, respectively (P<0.001). In TVP group, IPSS, QoLS, Qmax and PVR volume were significantly better than those in TUVRP group at 3 and 12 months of followup. At 12 months postoperatively, IPSS improved 62.7% and 87.9% (P<0.001), QolS decrease by 41.9% and 71.9% (P<0.001), mean Qmax increased by 6.3 ml/s (102.0%) and 11.4 ml/s (230.2%) (P=0.001) and mean PVR volume decreased by 65.4 ml (70.5%) and 71.2 ml (88.6%) (P=0.001) in TUVRP and TVP group, respectively. Two TUVRP patients developed urethral stricture and 1 bladder neck sclerosis postoperatively, requiring internal urethrotomy and TUIP, respectively. TVP may be more effective and safer than TUVRP for benign prostatic hyperplasia (BPH) patients whose PV is > 50 ml.

C147 A RETROSPECTIVE ANALYSIS OF TRANSURETHRAL VAPOR RESECTION OF THE PROSTATE VERSUS TRANSVESICAL PROSTATECTOMY FOR PROSTATE GREATER THAN 50 ML

We compared the safety and efficacy of transurethral vapor resection (TUVRP) and transvesical prostatectomy (TVP) for prostate > 50 ml in retrospective study. Ninety patients with urodynamic obstruction and prostate volume (PV) in range between 50 and 100 ml were analyzed according to the mode of operative treatment (TUVRP vs. TVP). Patients were assessed preoperatively and followed-up at 3 and 12 months postoperatively. All patients underwent general and urological standard evaluation before surgery, including urine analysis, urine culture, blood samples tests, with determination of PSA, DRE, abdominal and minor pelvis ultrasound (US), transrectal ultrasound (TRUS), maximal flow rate (Qmax), postvoid residual urine(PVR), and self assessment by International Prostate Symptom Score (IPSS) and Quality of Life Score (QoLS). Urethrocystoscopy was obligatory done before TUVRP. TRUS-guided biopsies of the prostate were performed in patients with PSA > 4 ng/ml, abnormal DRE, and/or suspicious echogenicity on TRUS. IPSS, QoLS, Qmax and PVR were obtained at each follow-up. Of 90 patients eligible to participate, 69 patients completed 12 months of follow-up (TUVRP, n=35; TVP, n=36). TUVRP procedure was not faster than TVP procedure (P=0.41); 43.6% and 84.8% of prostatic tissues were resected after TUVRP and TVP, respectively (P<0.001). In TVP group, IPSS, QoLS, Qmax and PVR volume were significantly better than those in TUVRP group at 3 and 12 months of followup. At 12 months postoperatively, IPSS improved 62.7% and 87.9% (P<0.001), QolS decrease by 41.9% and 71.9% (P<0.001), mean Qmax increased by 6.3 ml/s (102.0%) and 11.4 ml/s (230.2%) (P=0.001) and mean PVR volume decreased by 65.4 ml (70.5%) and 71.2 ml (88.6%) (P=0.001) in TUVRP and TVP

Evaluation of the clinical value of a simple flowmeter in the management of male lower urinary tract symptoms

Study Type - Diagnostic (exploratory cohort) Level of Evidence 3b What's known on the subject? and What does the study add? Electronic uroflowmetry reasonably predicts the likelihood of bladder outlet obstruction (BOO) and risk of AUR. This low-cost device, Uflowmeter(™) , allows men to perform uroflowmetry at home with ease and the results are compatible with that of electronic uroflowmentry. It can also estimates risk of AUR and the need for TURP to relieve LUTS. To show the clinical value of a simple flowmeter, which has been devised to measure uroflow on an ordinal scale (<10, 10-15, 15-19 and >19 mL/s) at home, for the management of male lower urinary tract symptoms (LUTS). A total of 186 men with LUTS were enrolled in the study. The mean (range) follow-up was 220 (68-431) days. The men's mean (range) age was 65.5 (46-83) years, mean (range) maximum urinary flow rate (Qmax) 12.8 (4.3-39.5) mL/s, mean (range) voided volume 294.8 (151-686) mL; mean (range) postvoid residual urine volume (PVR) 50 (0-303) mL and mean (range) International Prostate Symptom Score (IPSS) 13.5 (1-31). The men underwent electronic uroflowmetry ('clinic uroflowmetry') and completed an IPSS questionnaire in the clinic. They then conducted 10 measurements with the device at home ('home uroflowetry'). The uroflowmetry and IPSS questionnaire were repeated 2 weeks later. Quadratically weighted Kappa analysis (κ) of the home uroflowmetry vs. clinic uroflowmetry, and of the sensitivity and specificity of the home uroflowmetry values to correspond to the mean Qmax of clinic uroflowmetry (<10, 10-15, 15-19 and >19 mL/s) was performed. Similar analyses were performed for the IPSS. Kaplan-Meier analysis was performed to evaluate whether home uroflowmetry was able to prognosticate acute urinary retention (AUR) or the need for transurethral resection of the prostate (TURP). The home uroflowmetry values (κ= 0.84, 95% confidence interval [CI]: 0.78-0.90) were superior to the IPSS (κ= 0.083; 95% CI: 0-0.173) in correlating with the mean Qmax of clinic uroflowmetry. Home uroflowmetry was most sensitive in identifying a mean Qmax of >19 mL/s (sensitivity: 0.99; 95% CI:0.97-1.00) and most specific in identifying a mean Qmax of <10 mL/s (specificity: 0.90; 95% CI:0.83-0.94). The home uroflowmetry works best in ruling out a mean Qmax of <19 mL/s (diagnostic odds ratio [DOR]= 349.3; 95% CI:40.24-3037.7), followed by a mean Qmax of <15 mL/s (DOR = 91.02; 95% CI:31.23-265.23) and a mean Qmax of <10 mL/s (DOR = 32.04; 95% CI:14.0-73.19). Men with a home uroflowmetry value ≤10 mL/s were more likely (n= 6; 8.8%) than those with a home uroflowmetry value >10 mL/s (n= 2; 1.7%) to develop AUR or require TURP (log-rank test: P= 0.017; hazard ratio:5.61(95% CI:1.10-28.64)). The IPSS failed to display the same discriminative capability. Home uroflowmetry using this simple device is a satisfactory estimation of clinic uroflowmetry using an electronic flowmeter and can predict the significant progression of male LUTS.

Techniques and Results of Urethroplasty for Female Urethral Strictures: Our Experience With 17 Patients

To report our experience with urethroplasty in women with urethral stricture and discuss the therapeutic considerations and outcomes of various flap- and graft-based techniques. A total of 17 patients with mid to distal urethral stricture (urethral caliber <14F, maximal urinary flow rate <12 mL/s, and detrusor pressure >20 cm H(2)O during voiding) underwent urethroplasty from 2004 to 2010. Of the 17 patients, 7 had undergone previous instrumentation and 10 were repaired primarily. The preoperative workup included American Urological Association symptom score assessment, uroflowmetry, voiding cystourethrography, and urethrocystoscopy. Of the 17 patients, 10 received anterior vaginal wall mucosa inlay urethroplasty. Proximally, the dilated urethral mucosa was used in 1 patient. A Martius flap reinforced ventral buccal mucosa graft (BMG) onlay urethroplasty was used in 2 patients with previous synthetic midurethral slings. Two patients with an atrophic vagina received a dorsal BMG onlay. A circular BMG reconstruction was used in 2 patients with severe distal urethral stricture. The preoperative findings were compared with the postoperative data at the last follow-up using the Wilcoxon sign test. With a median follow-up of 24 months (range 6-78), an objective and subjective cure was achieved in 17 (100%) and 15 (88%) patients, respectively. At the last follow-up, the mean maximal urinary flow rate increased from 10.8 ± 3.2 mL/s preoperatively to 28.9 ± 7.4 mL/s (P = .001), and the mean postvoid residual urine volume had decreased from 120 ± 30 mL preoperatively to 30 ± 12 mL (P = .001). The mean American Urological Association score had decreased from 27.1 ± 3.9 preoperatively to 7.1 ± 3.5 postoperatively (P < .0001). Primary urethroplasty can be considered a first-line option for treatment of female urethral strictures. Local mucosal flaps will cure the problem in most situations. BMG offers an excellent alternative when viable local tissue is absent.

Functional Detrusor Myoplasty for Bladder Acontractility: Long-Term Results

We present the long-term results of a multicenter investigation with latissimus dorsi detrusor myoplasty in patients with bladder acontractility caused by lower motor neuron lesion in whom there is no treatment alternative other than lifelong clean intermittent catheterization. From 2001 to 2008, 24 patients (median age 39 years, range 13 to 63, 16 males, 8 females) requiring complete clean intermittent catheterization 4 to 7 times daily underwent latissimus dorsi detrusor myoplasty at 4 centers worldwide. Before the procedure patients were on clean intermittent catheterization for a median of 55 months (range 17 to 195). Median followup was 46 months (range 8 to 89) and was performed by urodynamics and measurement of post-void residual urine volume. Bladder contractility index was calculated. The t test was used for statistical analysis. Of the 24 patients 17 (71%) gained complete spontaneous voiding with a mean post-void residual urine volume of 25 ml (range 0 to 100). Mean bladder contractility index increased from 20.1 ± 7.6 to 176.2 ± 25.4 (p <0.001). In 3 patients (13%) the frequency of clean intermittent catheterization was reduced to 2 to 4 times daily with a mean post-void residual urine volume of 200 ml (range 150 to 250). Mean bladder contractility index was 12.0 ± 7.2 preoperatively and 68.7 ± 28.1 postoperatively (p = 0.12). Recurrent urinary tract infections (defined as the presence of clinical symptoms such as dysuria and fever, and microbiological evidence of germs) ceased in 21 of 23 patients (91%, mean preoperatively 8 per year). Four patients (17%) required clean intermittent catheterization with the same frequency as before the procedure (mean bladder contractility index preoperatively 22.5 ± 10.3 and postoperatively 26.0 ± 12.3, p = 0.83). No chronic pain at the donor site or vesicoureteral reflux was observed in any patient. The results of this multicenter analysis demonstrate that latissimus dorsi detrusor myoplasty is an effective alternative to clean intermittent catheterization in a select group of patients with neurogenic bladder acontractility.

Post-Void Residual Urine as a Predictor of Urinary Tract Infection—Is There a Cutoff Value in Asymptomatic Men?

Post-void residual urine can lead to various complications, including urinary tract infection. Recently investigators calculated that a cutoff value of 180 ml has considerably high sensitivity and specificity for significant bacteriuria in asymptomatic men. We determined the association between post-void residual urine volume and urinary tract infection, and validated the suggested 180 ml cutoff in asymptomatic men. In a prospective study we analyzed certain criteria in 225 asymptomatic male patients, including prostate specific antigen, prostate volume, International Prostate Symptom Score, peak urine flow rate, urine culture results and post-void residual urine volume using transabdominal ultrasound. Using ROC analysis a cutoff predicting bacteriuria was calculated. Different cutoff values were validated. Of the study group 60% were able to completely empty the bladder and had a post-void residual urine volume of 10 ml or less. However, in 31% of the study group urine culture was positive. Patients presenting with urinary tract infection had significantly higher mean post-void residual urine volume than patients without urinary tract infection (113 vs 41 ml, p <0.001). In 29 men (13%) post-void residual volume was 180 ml or greater. Confirming urinary tract infection, this cutoff showed only 28% sensitivity and 94% specificity (AUC 0.606, p = 0.01). No cutoff value could be determined to predict positive urine culture with sufficient sensitivity and specificity. Based on the results of the current study it seems premature to recommend a cutoff value leading to therapeutic consequences.

Functional Outcome Following Photoselective Vaporisation of the Prostate (PVP): Urodynamic Findings Within 12 Months Follow-Up

ObjectivesWe determined the impact of potassium-titanyl-phosphate (KTP) laser therapy of the prostate on urodynamic results, voiding function, quality of life, and sexual function. Design, Setting, and ParticipantsForty-five patients complaining of symptomatic benign prostatic hyperplasia (BPH) and urodynamically proven obstructive voiding were included in the prospective study. Follow-up exams were repeated 3 mo and 12 mo after the treatment. InterventionAll patients underwent photoselective 80-Watt KTP laser vaporisation of the prostate performed by two experienced surgeons. MeasurementsDisease-specific quality of life and sexual function were assessed using the International Prostate Symptom Score (IPSS) and International Inventory of Erectile Function (IIEF). Video-urodynamics were carried out to determine changes in pressure flow and bladder function. Results and LimitationsThe average preoperative prostate volume was 47.63ml (range 30–75m). The mean preoperative PSA-value, which had been 3.5ng/ml (range 0.13–7ng/ml) initially, dropped by 34.2% after 3 mo and 37.1% after 12 mo. Despite transient micturition complaints (40%), all patients showed significant improvement in the IPSS in urinary peak flow and detrusor pressure at peak flow. The mean post-void residual urine volume decreased, while erectile function and libido scores remained unaffected by the procedure according to the IIEF. Detrusor contractility was also not affected in any of the patients. The single-centre study design and small number of patients may have limited the study results. ConclusionsKTP laser therapy of the prostate achieves significant improvements both symptomatically as well as with respect to objective micturition parameters. The procedure leads to a functional deobstruction of the lower urinary tract with steady improvement results throughout the follow up period.

INFLUENCE OF INTRAVESICAL POTASSIUM ON PELVIC FLOOR ACTIVITY IN WOMEN WITH OVERACTIVE BLADDER SYNDROME: COMPARATIVE URODYNAMICS MIGHT PROVIDE BETTER DETECTION OF DYSFUNCTIONAL VOIDING

BJU InternationalVolume 101, Issue 3 p. 394-395 INFLUENCE OF INTRAVESICAL POTASSIUM ON PELVIC FLOOR ACTIVITY IN WOMEN WITH OVERACTIVE BLADDER SYNDROME: COMPARATIVE URODYNAMICS MIGHT PROVIDE BETTER DETECTION OF DYSFUNCTIONAL VOIDING Paul Irwin, Paul Irwin Michael Heal Department of Urology, Mid Cheshire Hospitals NHS Trust, Crewe, UKSearch for more papers by this authorJoe Philip, Joe Philip Michael Heal Department of Urology, Mid Cheshire Hospitals NHS Trust, Crewe, UKSearch for more papers by this author Paul Irwin, Paul Irwin Michael Heal Department of Urology, Mid Cheshire Hospitals NHS Trust, Crewe, UKSearch for more papers by this authorJoe Philip, Joe Philip Michael Heal Department of Urology, Mid Cheshire Hospitals NHS Trust, Crewe, UKSearch for more papers by this author First published: 03 January 2008 https://doi.org/10.1111/j.1464-410X.2007.07417_6.xRead the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Volume101, Issue3February 2008Pages 394-395 RelatedInformation

Postvoid residual urine in women with stress incontinence

To confirm the idea that women with stress incontinence can have elevated postvoid residual urine (PVR) and to examine the correlation between PVR obtained with catheterization versus that with BladderScan (BS). This is a prospective study involving 902 women referred to our urogynecology clinics because of symptoms of lower urinary tract dysfunction. Women were selected if they met all of the following conditions: (1) A main complaint of stress urinary incontinence; (2) A diagnosis of urodynamic stress incontinence; and (3) No previous pelvic surgery, advanced pelvic prolapse or neurological deficit. One hundred and seven women met all criteria and formed the basis for this study. All women in the study group underwent three-part urodynamic testing including uroflowmetry, filling (provocative) and voiding cystometry. After uroflowmetry they were scanned by a BS, and then catheterized for PVR volume before the procedure of cystometry. The mean PVR volume was 62.8 ml by BS and 38.5 ml by catheterization. 35.5% women had PVR urine higher than 50 ml and 15.9% had PVR urine greater than 100 ml. The PVR volume obtained by BS correlated significantly with catheterized volume (r = 0.625, P = 0.001) and offered a sensitivity of 64.7% and a specificity of 94.3% in detecting PVR greater than 100. The mean maximum flow rate was 22.1 ml/sec and mean detrusor contraction pressure during voiding was 21 cm H(2)O. Women in our study had low maximum flow rate (22.1 ml/sec), elevated PVR (38.5 ml) and high detrusor contraction pressure during voiding (21 cm H(2)O) indicating that women with stress incontinence have some degree of voiding dysfunction. The bladder behavior in women with stress incontinence may be more complex than we had previously considered and special care should be taken if a woman with elevated PVR is scheduled for anti-incontinence surgery. BS appears to be reasonably sensitive and specific for the detection of elevated PVR and is reliable in clinical use.

Ileocaecal vs ileal neobladder after radical cystectomy in patients with bladder cancer: a comparative study

To compare an ileocaecal orthotopic bladder, (which has been the standard procedure in Egypt for >30 years) with the ileal neobladder, as there is no ideal continent orthotopic bladder replacement for patients after cystectomy for bladder cancer. Between June 1999 and December 2001, 60 patients with invasive bladder cancer were randomized into two groups. Group A comprised 29 patients who had radical cystectomy and reconstruction with an ileal neobladder (median age 50 years, 27 men and two women) and group B included 31 who had an ileocaecal bladder substitution after radical cystectomy (median age 51 years, 28 men and three women). The complication rate after surgery in group A was 17%, with two deaths, one from acute myocardial infarction and the other from haematemesis. In group B, the complication rate was 13%, with two deaths, one from a massive pulmonary embolism and the other from liver cell failure. Daytime continence was achieved in 93% of patients in group A and 90% in group B. The mean (sd) postvoid residual urine volume was larger in group A than group B, at 90 (72) vs 12 (20) mL. Acidosis and hyponatraemia were evident in the patients in group A but in none in group B (P < 0.05). The pelvicalyceal systems were preserved in 85% of patients in group A and 93% in group B during the 2-year follow-up. The mean (sd) renal cortical thickness was less in group A than in group B, at 1.8 (0.5) and 1.9 (0.2) cm, respectively. Although the cystometric capacity was greater and the basal pressure less in group A than B, these were not reflected in the degree of diurnal and nocturnal continence or back pressure on the renal units. Continence in both pouches was similar but the renal units were preserved better in the ileocaecal than in the ileal neobladder. Residual urine volume was greater in the ileal neobladder, with its potential complications of infection and stone formation, and acidosis was more evident.

LONG-TERM URINARY CONTINENCE RATES AFTER SIMPLE SLING INCISION FOR RELIEF OF URINARY RETENTION FOLLOWING FASCIA LATA PUBOVAGINAL SLINGS

We examined long-term urinary continence rates in patients after midline simple sling incision for urinary retention following suburethral fascia lata slings. A retrospective review was completed of 13 women undergoing a simple sling incision for catheter dependent obstruction after suburethral sling surgery more than 4 years previously. Urinary continence was evaluated by use of the Groutz-Blaivas anti-incontinence surgery response score. The scores were statistically compared as binary categories at mean 111-day and 60.8-month followup. A total of 13 women underwent a simple sling incision for catheter dependent urinary retention after sling surgery, and 11 patients (mean age 73.4 years) were available for long-term followup (60.8 months). The simple sling incision procedure was completed an average of 65 days (range 36 to 235) after original sling placement. Mean post-void residual urine volume at least 1 month after sling surgery was 289 ml (range 75 to 500). At a mean followup of 60.8 months, no patient required catheterization. Of 11 patients 5 wore no pads. There was no statistical difference in leakage episodes per day (p = 1.0), pads per day (p = 0.3), or patient perceived condition (p = 0.3) during long-term followup. The mean Groutz-Blaivas score did not change statistically during the 5-year followup period (p = 0.6). Midline simple sling incision provides relief of catheter dependent obstruction following fascia lata sling surgery while preserving urinary continence in the majority of patients during a 5-year followup period.

DYSFUNCTIONAL VOIDING IN WOMEN

We characterized presenting symptoms and urodynamic findings in women with dysfunctional voiding. We reviewed the charts of 26 women diagnosed with dysfunctional voiding. Those with a known or suspected history of neurological disease before evaluation were excluded from study. All patients completed an American Urological Association symptom index, and scores were classified as total, storage (irritative) and emptying (obstructive). The diagnosis of dysfunctional voiding was made on multichannel video urodynamics. There was increased external sphincter activity during voiding. Presenting symptoms and urodynamic findings in all cases were summarized. In addition, symptoms and urodynamic findings in patients later diagnosed with occult neurological disease were compared with those in patients without neurological disease. Mean patient age was 39.2 years (range 19 to 79). Mean total American Urological Association-7 score was 24.4 of 35. Frequency and urgency were the most common presenting symptoms in 82% of cases. Mean storage score was 11.3 of 15 and mean voiding score was 13.2 of 20. Urge and stress incontinence was noted in 6 (23%) and 4 patients (15%), respectively, while 11 (42%) had a history of recurrent urinary tract infection. Cystometrography revealed detrusor instability in 11 cases (42%), sensory urgency in 11 (42%) and impaired compliance in 2 (8%), including 1 with instability. There was great variability in voiding parameters. Mean maximum urinary flow plus or minus standard deviation was 10.4 +/- 6.2 cc per second, mean detrusor pressure at maximum urinary flow was 50.3 +/- 23.5 cm. water and mean post-void residual urine volume was 103.4 +/- 120.0 cc. Video urodynamics prompted neurological evaluation, which revealed occult neurological disease in 5 patients who were then reclassified with external-detrusor sphincter dyssynergia. Female patients presenting with lower urinary tract symptoms may have dysfunctional voiding patterns. Storage symptoms appear to be even more common than voiding symptoms in this study group. These patients tend to have decreased flow, increased voiding pressure and high post-void residual urine volume. However, there is wide variation in these parameters among individuals. Therefore, careful review of the voiding phase, including pelvic floor electromyography and the fluoroscopic appearance of the bladder outlet, is critical. Occult neurological disease should be suspected in patients with dysfunctional voiding.

Botulinum-A toxin for treating detrusor hyperreflexia in spinal cord injured patients: a new alternative to anticholinergic drugs? Preliminary results.

We evaluated the efficacy of botulinum-A toxin injections into the detrusor muscle in patients with spinal cord injury, detrusor hyperreflexia and urge incontinence resistant to anticholinergic drugs. The purpose of treatment was to suppress incontinence episodes and increase functional bladder capacity. Included in our prospective nonrandomized study done at 2 clinics were 31 patients with traumatic spinal cord injury who emptied the bladder by intermittent self-catheterization. These patients had severe detrusor hyperreflexia and incontinence despite a high dose of anticholinergic medication. Pretreatment evaluation included a clinical examination and complete urodynamic investigation. Under cystoscopic control a total of 200 to 300 units of botulinum-A toxin were injected into the detrusor muscle at 20 to 30 sites (10 units per ml. per site), sparing the trigone. Clinical and urodynamic followup was planned for 6, 16 and 36 weeks after treatment. Patients were asked to decrease their intake of anticholinergic drugs during week 1 after treatment. Of the 21 patients 19 underwent a complete examination 6 weeks after the botulinum-A toxin injections, and 11 at 16 and 36 weeks. At the 6-week followup complete continence was restored in 17 of 19 cases in which anticholinergic medication was markedly decreased or withdrawn. Less satisfactory results in 2 cases were associated with an insufficient dose of 200 units botulinum-A toxin. After the injections overall mean reflex volume and mean maximum cystometric bladder capacity plus or minus standard deviation significantly increased from 215.8 +/- 90.4 ml. to 415.7 +/- 211.1 (p <0.016) and 296.3 +/- 145.2 to 480.5 +/- 134.1 (p <0.016), respectively. There was also a significant decrease after treatment in mean maximum detrusor voiding pressure from 65.6 +/- 29.2 cm. water to 35 +/- 32. 1 (p <0.016). Mean post-void residual urine volume catheterized at the end of the urodynamic examination increased significantly from a mean of 261.8 +/- 241.3 ml. to 490.5 +/- 204.8 (p <0.016). Moreover, autonomic dysreflexia associated with bladder emptying that manifested as a hypertensive crisis during voiding disappeared after treatment in the 3 patients with tetraplegia. Satisfaction was high in all successfully treated patients and no side effects were observed. Ongoing improvement in urodynamic parameters and incontinence was already present in all patients reevaluated at 16 and 36 weeks. Botulinum-A toxin injections into the detrusor seem to be a safe and valuable therapeutic option in spinal cord injured patients with incontinence resistant to anticholinergic medication who perform clean intermittent self-catheterization. Successfully treated patients become continent again and may withdraw from or markedly decrease anticholinergic drug intake. A dose of 300 units botulinum-A toxin seems to be needed to counteract an overactive detrusor. The duration of bladder paresis induced by the toxin is at least 9 months, when repeat injections are required.