Lower Urinary Tract Symptoms in a prospective cohort of COVID-19 survivors.

PURPOSE: To analyze the prevalence of lower urinary tract symptoms (LUTS) in patients who survived moderate and severe forms of COVID-19 and the risk factors for LUTS six months after hospitalization. MATERIALS AND METHODS: In this prospective cohort study, patients were evaluated six months after hospitalization due to COVID-19. LUTS were assessed using the International Prostate Symptom Score. General health was assessed through the Hospital Anxiety and Depression Scale and the EQ5D-L5 scale, which evaluates mobility, ability to perform daily activities, pain and discomfort and completed a self-perception health evaluation. RESULTS: Of 255 participants, 54.1% were men and the median age was 57.3 [44.3 - 66.6] years. Pre-existing comorbidities included diabetes (35.7%), hypertension (54.5%), obesity (30.2%) and physical inactivity (65.5%). One hundred and twenty-four patients (48.6%) had a hospital stay >15 days, 181 (71.0%) were admitted to an ICU and 124 (48.6%) needed mechanical ventilation. Median IPSS was 6 [3-11] and did not differ between genders. Moderate to severe LUTS affected 108 (42.4%) patients (40.6% men and 44.4% women; p=0.610). Nocturia (58.4%) and frequency (45.9%) were the most prevalent symptoms and urgency was the only symptom that affected men (29.0%) and women (44.4%) differently (p=0.013). LUTS impacted the quality of life of 60 (23.5%) patients with women more severely affected (p=0.004). Diabetes, hypertension, and self-perception of worse general health were associated with LUTS. CONCLUSIONS: LUTS are highly prevalent and bothersome six months after hospitalization due to COVID-19. Assessment of LUTS may help ensure appropriate diagnosis and treatment in these patients.

Association of physical therapy techniques can improve pain and urinary symptoms outcomes in women with bladder pain syndrome. A randomized controlled trial

ABSTRACT Purpose: to verify the effects of biofeedback (BF) and manual therapy (MT) associated with transcutaneous electrical nerve stimulation (TENS) or postural exercises (PE) in the treatment of bladder pain syndrome (BPS) in women regarding pain and urinary symptoms. Materials and Methods: a parallel-randomized controlled trial was conducted in BPS patients diagnosed according to NIH clinical criteria. Two specialized physiotherapists applied demographic and validated questionnaires of perineal and suprapubic pain (VAS), urinary symptoms and problems (ICSI and ICPI) and sexual function (FSFI) and a physical assessment was made to identify myofascial trigger points. Thirty-one women, mean age 51.8 ± 10.9 were randomized in three groups of treatment consisting of ten weekly sessions of BF and MT (Conventional group); BF, MT, and TENS (TENS group); and BF, MT, and PE (Postural group). Results: Postural group improved perineal and suprapubic pain after treatment (p<0.001 and p=0.001, respectively), and the suprapubic pain improvement remained persistent at 3 months of follow up (p=0.001). Postural group improved urinary symptoms and problems after treatment (p<0.001 and p=0.005, respectively) and during follow up (p<0.001 and p=0.001). Conclusions: Biofeedback and manual therapy associated with postural exercises showed a significant improvement in perineal and suprapubic pain and urinary symptoms after treatment and during follow-up. Both results suggest a possible role for the use of this physiotherapy technique to treat BPS patients. Longer follow-up and a larger number of patients are necessary to confirm these conclusions.

Association of physical therapy techniques can improve pain and urinary symptoms outcomes in women with bladder pain syndrome. A randomized controlled trial.

PURPOSE: to verify the effects of biofeedback (BF) and manual therapy (MT) associated with transcutaneous electrical nerve stimulation (TENS) or postural exercises (PE) in the treatment of bladder pain syndrome (BPS) in women regarding pain and urinary symptoms. MATERIALS AND METHODS: a parallel-randomized controlled trial was conducted in BPS patients diagnosed according to NIH clinical criteria. Two specialized physiotherapists applied demographic and validated questionnaires of perineal and suprapubic pain (VAS), urinary symptoms and problems (ICSI and ICPI) and sexual function (FSFI) and a physical assessment was made to identify myofascial trigger points. Thirty-one women, mean age 51.8 ± 10.9 were randomized in three groups of treatment consisting of ten weekly sessions of BF and MT (Conventional group); BF, MT, and TENS (TENS group); and BF, MT, and PE (Postural group). RESULTS: Postural group improved perineal and suprapubic pain after treatment (p<0.001 and p=0.001, respectively), and the suprapubic pain improvement remained persistent at 3 months of follow up (p=0.001). Postural group improved urinary symptoms and problems after treatment (p<0.001 and p=0.005, respectively) and during follow up (p<0.001 and p=0.001). CONCLUSIONS: Biofeedback and manual therapy associated with postural exercises showed a significant improvement in perineal and suprapubic pain and urinary symptoms after treatment and during follow-up. Both results suggest a possible role for the use of this physiotherapy technique to treat BPS patients. Longer follow-up and a larger number of patients are necessary to confirm these conclusions.

Severe urinary tract damage secondary to primary bladder neck obstruction in women.

OBJECTIVE: To present the clinical and radiological characteristics of women with severe structural deterioration of the bladder and upper urinary tract secondary to Primary Bladder Neck Obstruction (PBNO), and their outcomes after bladder neck incision (BNI). METHODS: Retrospective evaluation of adult women who underwent BNI for PBNO at one institution. Patients were assessed for symptoms, renal function, structural abnormalities of the urinary tract and video-urodynamics. PBNO diagnosis was confirmed with video-urodynamics in all patients. BNI was performed at the 4-5 and/or 7-8 o'clock positions. Postoperative symptoms, PVR, uroflowmetry and renal function were evaluated and compared to baseline. RESULTS: Median patient age was 56.5 years (range 40-80). All presented with urinary retention-four were on clean intermittent Catheterization (CIC) and two with a Foley catheter. All patients had bladder wall thickening and diverticula. Four women had elevated creatinine levels, bilateral hydronephrosis was present in five (83.3%). After BNI, all patients resumed spontaneous voiding without the need for CIC. Median Qmax significantly improved from 2.0 [1.0-4.0] mL/s to 15 [10-22.7] mL/s (p = 0.031). Median PVR decreased from 150 to 46 [22-76] mL (p = 0.031). There were no postoperative complications. Creatinine levels returned to normal in 3/4 (75%) patients. CONCLUSION: PBNO in women may result in severe damage to the bladder and upper urinary tract. Despite severe structural abnormalities of the bladder, BNI was effective in reducing symptoms and improving structural and functional abnormalities of the lower and upper urinary tract.

Impact of a 1-day urodynamic course on knowledge, perceptions, and attitudes of urology residents.

AIMS: No evidence-informed educational curriculum is available for designing urodynamics (UDS) courses. We evaluated the learning outcomes of a short-lasting urodynamic course for urology residents. METHODS: Urology residents of postgraduate years 4 and 5 (n = 13 and n = 1316, respectively) attended a 1-day urodynamic course. Learning objectives included patient preparation, indication and technique, terminology, trace interpretation, and impact on patient management. Instructional methods consisted of short lectures (3 h) and case-based discussions (7.5 h). Learners' reactions, modifications of perceptions and attitudes, and acquisition of knowledge and skills were assessed by three written tests with a single group, pretest, posttest 1, and posttest 2 design. Tests were conducted precourse, 1 week after, and 4 months after the course. RESULTS: All participants felt more confident in several urodynamic competencies after the course, including patient preparation, urodynamic indication and technique, terminology, trace interpretation, and impact for patient management. These perceptions remained unchanged after 4 months. Most became stricter in the indication of UDS, including 20 (87.0%) at posttest 1 and 8 (66.7%) at posttest 2. The mean number of correct answers in the knowledge evaluation was 52.2% versus 61.4% versus 56.7%, respectively at pretest, posttest 1, and posttest 2; p = 0.535). All participants rated the course as very useful or useful in both posttest evaluations. CONCLUSIONS: Our study demonstrates that a 1-day urodynamic course can promote lasting improvements in self-reported perceptions, attitudes, and urodynamic-related competencies of urology residents. Further studies using evidence-informed educational principles are needed to determine the effect of specific educational interventions on urodynamic competencies in different contexts.

Longitudinal Improvement of Lower Urinary Tract Symptoms in Williams-Beuren Syndrome.

PURPOSE: Williams-Beuren syndrome is a chromosomal disorder caused by a deletion at region 7q11.23. Lower urinary tract symptoms are highly prevalent and significantly affect quality of life. We assessed the long-term outcomes of lower urinary tract symptoms in children with Williams-Beuren syndrome. MATERIALS AND METHODS: From February 2001 to July 2016, 90 patients with Williams-Beuren syndrome were evaluated in our hospital, of whom 31 (20 boys) had at least 5 years of followup. Baseline evaluation included a history of lower urinary tract symptoms, frequency-volume chart and the impact on quality of life measured on a scale of 0 (delighted) to 6 (terrible). Pharmacological therapy with oxybutynin or doxazosin was offered to symptomatic patients. We present the outcome of lower urinary tract symptoms after 5 and 10 years of followup. RESULTS: At baseline 27 (87.1%) patients were symptomatic. Median duration of followup was 10 (range 6-13) years. Pharmacological therapy was started for 25 (92.6%) symptomatic patients at baseline, including oxybutynin for 19 (76.0%), doxazosin for 1 (4.0%) and a combination of the 2 agents for 5 (20.0%). Medical therapy was still in use by 61.2% after 5 years and 52.9% after 10 years (p=0.043). Median duration of pharmacological treatment was 7 (range 6-11) years. A significant improvement of lower urinary tract symptoms was observed over time, with 35.5% and 29.5% patients considered symptomatic after 5 years and 10 years, respectively (p <0.001). Quality of life was also markedly improved over time (p <0.001). CONCLUSIONS: This long-term study showed significant improvement of lower urinary tract symptoms in children and adolescents with Williams-Beuren syndrome over time. Long-term pharmacological treatment was needed in most patients.

Cross-cultural adaptation and validation of the neurogenic bladder symptom score questionnaire for brazilian portuguese

ABSTRACT Objective: To cross-culturally adapt and check for the reliability and validity of the neurogenic bladder symptom score questionnaire to Brazilian Portuguese, in patients with spinal cord injury and multiple sclerosis. Materials and Methods: The questionnaire was culturally adapted according to international guidelines. The Brazilian version was applied in patients diagnosed with neurogenic bladder due to spinal cord injury or multiple sclerosis, twice in a range of 7 to 14 days. Psychometric properties were tested such as content validity, construct validity, internal consistency, and test-retest reliability. Results: Sixty-eight patients participated in the study. Good internal consistency of the Portuguese version was observed, with Cronbach α of 0.81. The test-retest reliability was also high, with an Intraclass Correlation Coefficient of 0.86 [0.76 - 0.92] (p<0.0001). In the construct validity, the Pearson Correlation revealed a moderate correlation between the Portuguese version of the NBSS and the Qualiveen-SF questionnaire (r = 0.66 [0.40-0.82]; p <0.0001). Conclusions: The process of cross-cultural adaptation and validation of the NBSS questionnaire for the Brazilian Portuguese in patients with neurogenic lower urinary tract dysfunction was concluded.

Cross-cultural adaptation and validation of the neurogenic bladder symptom score questionnaire for Brazilian Portuguese.

OBJECTIVE: To cross-culturally adapt and check for the reliability and validity of the neurogenic bladder symptom score questionnaire to Brazilian portuguese, in patients with spinal cord injury and multiple sclerosis. MATERIALS AND METHODS: The questionnaire was culturally adapted according to international guidelines. The Brazilian version was applied in patients diagnosed with neurogenic bladder due to spinal cord injury or multiple sclerosis, twice in a range of 7 to 14 days. Psychometric properties were tested such as content validity, construct validity, internal consistency, and test-retest reliability. RESULTS: Sixty-eight patients participated in the study. Good internal consistency of the Portuguese version was observed, with Cronbach α of 0.81. The test-retest reliability was also high, with an Intraclass Correlation Coefficient of 0.86 [0.76 - 0.92] (p<0.0001). In the construct validity, the Pearson Correlation revealed a moderate correlation between the Portuguese version of the NBSS and the Qualiveen-SF questionnaire (r = 0.66 [0.40-0.82]; p<0.0001). CONCLUSIONS: The process of cross-cultural adaptation and validation of the NBSS questionnaire for the Brazilian Portuguese in patients with neurogenic lower urinary tract dysfunction was concluded.

Single nucleotide polymorphism analysis in interstitial cystitis/painful bladder syndrome.

INTRODUCTION: Interstitial Cystitis (IC) is a chronic condition diagnosed based on the presence of symptoms, such as suprapubic/ pelvic pain, pressure or discomfort in association with urgency and increased urinary frequency. Confusable diseases must be excluded. However, there is no objective test or marker to establish the presence of the disease. Diagnosis and patient management is often difficult, given the poor understanding of IC pathogenesis and its unknown etiology and genetics. As an attempt to find biomarkers related to IC, we assessed the association between 20 selected single nucleotide polymorphism (SNPs) with IC and pain severity. OBJECTIVES: To assess the presence of SNPs in IC patients' blood samples and correlate them with the disease and chronic pain condition. METHODS: A case-control study was conducted. We selected 34 female patients with IC diagnosed according to NIDDK criteria and 23 patients in the control group (previously healthy women with only stress urinary incontinence). IC patients were allocated into two groups according to reported chronic pain severity. We selected the following SNPs for analysis: rs1800871, rs1800872, rs1800896, rs1800471, rs1800629, rs361525, rs1800497, rs6311, rs6277, rs6276, rs6313, rs2835859, rs11127292, rs2243248, rs6887695, rs3212227, rs1799971, rs12579350, rs3813034, and rs6746030. Genotyping was performed by real-time PCR (q-PCR). RESULTS: The polymorphic allele of SNP rs11127292 exhibited a higher frequency in subjects with IC than in controls (p:0.01). The polymorphic allele of SNP rs6311 was more frequent in patients with severe pain (p:0.03). The frequency of the wild-type allele of SNP rs1799971 was higher in patients with mild to moderate pain (p:0.04). CONCLUSION: The results indicated differences in SNP frequency among subjects, suggesting that SNPs could serve either as a marker of IC or as a marker of pain severity in IC patients. The study showed promising results regarding IC and polymorphism associations. These associations have not been previously reported.

Surgical treatment of post-prostatectomy stress urinary incontinence in adult men: Report from the 6th International Consultation on Incontinence.

AIMS: To report the recommendations of the 6th International Consultation on Incontinence (ICI) on post-prostatectomy urinary incontinence. METHODS: The 6th ICI committee on surgical treatment of urinary incontinence in men assessed and reviewed the outcomes of surgical therapy and updated the prior recommendations published in 2013. Articles from peer-reviewed journals, abstracts from scientific meetings, and literature searches by hand and electronically formed the basis of this review. The resulting guidelines were presented at the 2016 ICI meeting in Tokyo, Japan. RESULTS: Voiding diary and pad tests are valuable for assessing quantity of leakage. Cystoscopy and/or urodynamics may be useful in guiding therapy depending on the type of incontinence and presumed etiology. Artificial Urinary Sphincter (AUS) is the preferred treatment for men with moderate to severe stress urinary incontinence (SUI) after RP. Male slings are an acceptable approach for men with mild to moderate SUI. Much discussion centers on the definition of moderate SUI. Injectable agents have a poor success rate in men with SUI. Options for recurrent SUI due to urethral atrophy after AUS implantation include changing the pressure balloon, downsizing the cuff and increasing the amount of fluid in the system. Infection and/or erosion demand surgical removal or revision of all or part of the prosthesis. CONCLUSIONS: Although there are several series reporting the outcomes of different surgical interventions for PPUI, there is still a need for prospective randomized clinical trials. Recommendations for future research include standardized workup and outcome measures, and complete reporting of adverse events at long-term.

Impact of the route of clean intermittent catheterization on quality of life in children with lower urinary tract dysfunction.

AIMS: To compare the impact of the different routes for clean intermittent catheterization on the quality of life of children with lower urinary tract dysfunction. METHODS: In this cross-sectional study, all children and adolescents under treatment in our clinic from August 2011 to May 2012 who were on CIC for bladder dysfunction were included. To evaluate the technical difficulty and the discomfort associated with the procedure we used a standard visual analog scale. Quality of life was measured using the Pediatric Quality of Life Inventory Version 4.0. RESULTS: A total of 70 children including 38 (54.3%) boys and 32 (45.7%) girls with a mean age of 11.8 ± 3.6 years (range 5 to 18 years) were evaluated. The mean daily number of catheterizations was 4.2 ± 1.1. CIC was performed through the urethra in 51 (72.9%) subjects and a stoma in 19 (27.1%). A 45 (64.3%) were assisted by a caregiver to perform a catheterization. No differences in both difficulty and discomfort for performing CIC were observed between groups. Children who performed CIC through a stoma had a better quality of life scores for the physical (P = 0.015) and social functioning domains (P = 0.011). CONCLUSION: The quality of life of children and adolescents performing CIC appears to be affected by the route of catheterization, with a worse performance for those using urethral catheterization.

Scaffolds for Pelvic Floor Prolapse: Logical Pathways.

Pelvic organ prolapse (POP) has borrowed principles of treatment from hernia repair and in the last two decades we saw reinforcement materials to treat POP with good outcomes in terms of anatomy but with alarming complication rates. Polypropylene meshes to specifically treat POP have been withdrawn from market by manufactures and a blank space was left to be filled with new materials. Macroporous monofilament meshes are ideal candidates and electrospinning emerged as a reliable method capable of delivering production reproducibility and customization. In this review, we point out some pathways that seem logical to be followed but have been only researched in last couple of years.

Fluoroquinolones and the Risk of Achilles Tendon Disorders: Update on a Neglected Complication.

OBJECTIVE: To evaluate the current evidence and to identify associated risk factors that increase the incidence of this complication. Fluoroquinolone (FQ) has been considered the first-line therapy for uncomplicated urinary infections. FQ has been associated with Achilles tendon disorders, especially during the first month of treatment. METHODS: Data sources searched included PubMed, MEDLINE, and Scopus from January 1988 to June 2017. RESULTS: A total of 79 articles were used, with ciprofloxacin representing the most common drug. CONCLUSION: We found that male gender, advanced age, normal body mass index, chronic renal failure, and concurrent use of corticosteroids increase the risk of Achilles tendon disorders.

Update on complications of synthetic suburethral slings

ABSTRACT Synthetic suburethral slings have become the most widely used technique for the surgical treatment of stress urinary incontinence. Despite its high success rates, significant complications have been reported including bleeding, urethral or bladder injury, urethral or bladder mesh erosion, intestinal perforation, vaginal extrusion of mesh, urinary tract infection, pain, urinary urgency and bladder outlet obstruction. Recent warnings from important regulatory agencies worldwide concerning safety issues of the use of mesh for urogynecological reconstruction have had a strong impact on patients as well as surgeons and manufacturers. In this paper, we reviewed the literature regarding surgical morbidity associated with synthetic suburethral slings.

Erectile Function Predicts Sexual Satisfaction in Men With Spinal Cord Injury.

INTRODUCTION: Spinal cord injury (SCI) is usually a sudden traumatic event and has a negative effect on sexual function. AIM: To evaluate the characteristics of sexual activity in men with SCI and identify predictors of being sexually active and having a satisfactory sex life. METHODS: We assessed sexual activity profiles of men with SCI from a Brazilian tertiary rehabilitation center from February to August 2012. All patients older than 18 years with SCI for longer than 1 year were invited to participate. We analyzed age, time since SCI, patient age at SCI, employment status, partner status, completeness of lesion, functional independence, urinary continence, and Sexual Health Inventory for Men (SHIM) score. MAIN OUTCOME MEASURES: The SHIM was used to assess erectile function (EF). Satisfaction with sex life was analyzed as a dichotomous variable. Predictors of an active and satisfactory sex life were identified using univariable and multivariable analyses. RESULTS: We evaluated 295 men with mean age of 40.7 ± 14.5 years. Most patients had a complete SCI (65.1%) and 159 (53.9%) were incontinent. The median SHIM score was 5 (interquartile range = 0-16) and only 71 men (24.1%) had a SHIM score of at least 17. Of these men, 159 (53.9%) were sexually active. Only 63 men (39.6%) were satisfied with their sex life after SCI. In univariable analysis, all variables were associated with an active sex life. Those with a SHIM score of at least 17 had a greater likelihood of being sexually active (odds ratio = 116, 95% confidence interval = 14-432). EF was the only parameter associated with a satisfactory sex life (odds ratio = 1.3, 95% confidence interval = 1.2-1.4). CONCLUSIONS: Most men with SCI were sexually inactive and/or dissatisfied with their sex life. Age, duration of SCI, completeness of SCI, continence, having a partner, and good EF were identified as predictors of an active sex life. However, only EF was a predictor of a satisfactory sex life. Gomes CM, Miranda EP, de Bessa J, et al. Erectile Function Predicts Sexual Satisfaction in Men With Spinal Cord Injury. Sex Med 2017;5:e148-e155.

Traditional suburethral sling operations for urinary incontinence in women.

BACKGROUND: Stress urinary incontinence constitutes a significant health and economic burden to society. Traditional suburethral slings are one of the surgical operations used to treat women with symptoms of stress urinary incontinence. OBJECTIVES: To determine the effects of traditional suburethral slings on stress or mixed incontinence in comparison with other management options. SEARCH METHODS: We searched the Cochrane Incontinence Group Specialised Register (searched 3 June 2010) and the reference lists of relevant articles. SELECTION CRITERIA: Randomised or quasi-randomised trials that included traditional suburethral slings for the treatment of stress or mixed urinary incontinence. DATA COLLECTION AND ANALYSIS: At least three reviewers independently extracted data from included trials onto a standard form and assessed trial methodological quality. The data abstracted were relevant to predetermined outcome measures. Where appropriate, we calculated a summary statistic: a relative risk for dichotomous data and a weighted mean difference for continuous data. MAIN RESULTS: We included 26 trials involving 2284 women. The quality of evidence was moderate for most trials and there was generally short follow-up ranging from 6 to 24 months.One medium-sized trial compared traditional suburethral sling operations with oxybutynin in the treatment of women with mixed urinary incontinence. Surgery appeared to be more effective than drugs in treating participant-reported incontinence (n = 75, risk ratio (RR) 0.18, 95% confidence interval (CI) 0.08 to 0.43).One trial found that traditional slings were more effective than transurethral injectable treatment (RR for clinician-assessed incontinence within a year 0.21, 95% CI 0.09 to 0.21)Seven trials compared slings with open abdominal retropubic colposuspension. Participant-reported incontinence was lower with the slings after one year (RR 0.75, 95% CI 0.62 to 0.90), but not when assessed by clinicians. Colposuspension, however, was associated with fewer peri-operative complications, shorter duration of use of indwelling catheter and less long-term voiding dysfunction. One study showed there was a 20% lower risk of bladder perforation with the sling procedure but a 50% increase in urinary tract infection with the sling procedure compared with colposuspension. Fewer women developed prolapse after slings (compared with after colposuspension) in two small trials but this did not reach statistical significance.Twelve trials addressed the comparison between traditional sling operations and minimally invasive sling operations. These seemed to be equally effective in the short term (RR for incontinence within first year 0.97, 95% CI 0.78 to 1.20) but minimally invasive slings had a shorter operating time, fewer peri-operative complications (other than bladder perforation) and some evidence of less post-operative voiding dysfunction and detrusor symptoms.Six trials compared one type of traditional sling with another. Materials included porcine dermis, lyophilised dura mater, fascia lata, vaginal wall, autologous dermis and rectus fascia. Participant-reported improvement rates within the first year favoured the traditional autologous material rectus fascia over other biological materials (RR 0.45, 95% CI 0.21 to 0.98). There were more complications with the use of non-absorbable Gore-Tex in one trial.Data for comparison of bladder neck needle suspension with suburethral slings were inconclusive because they came from a single trial with a small specialised population.No trials compared traditional suburethral slings with anterior repair, laparoscopic retropubic colposuspension or artificial sphincters. Most trials did not distinguish between women having surgery for primary or recurrent incontinence when reporting participant characteristics.For most of the comparisons, clinically important differences could not be ruled out. AUTHORS' CONCLUSIONS: Traditional slings seem to be as effective as minimally invasive slings, but had higher rates of adverse effects. This should be interpreted with some caution however, as the quality of evidence for the studies was variable, follow-up short and populations small, particularly for identifying complication rates. Tradional sling procedures appeared to confer a similar cure rate in comparison to open retropubic colposuspension, but the long-term adverse event profile is still unclear. A brief economic commentary (BEC) identified two studies suggesting that traditional slings may be more cost-effective compared with collagen injection but not cost-effective when compared with minimally invasive sling operations. Reliable evidence to clarify whether or not traditional suburethral slings may be better or worse than other surgical or conservative management options is lacking.

Increased detrusor collagen is associated with detrusor overactivity and decreased bladder compliance in men with benign prostatic obstruction.

BACKGROUND: This study aimed to investigate the relationship between detrusor collagen content and urodynamic parameters in men with benign prostatic obstruction. MATERIAL AND METHODS: Nineteen consecutive patients undergoing open prostatectomy for bladder outlet obstruction (BOO) due to benign prostatic hyperplasia (BPH) were evaluated. Urodynamic tests were performed in all patients. BOO and detrusor contractility were assessed with the BOO index (BOOI) and the bladder contractility index (BCI), respectively. A bladder fragment was obtained during prostatectomy. Eight cadaveric organ donors composed the control group. Bladder sections were stained with picrosirius red and hematoxylin-eosin. The collagen to smooth muscle ratio (C/M) in the detrusor was measured and its relationship with urodynamic parameters was investigated. RESULTS: Seven (36.8%) patients were operated on due to lower urinary tract symptoms and 12 (63.2%) had urinary retention. The mean prostate volume was 128.6 cm3 ± 32.3 cm3, the mean BOOI was 76.4 ± 33.0, and the mean BCI was 116.1 ± 33.7. The mean C/M in BPH patients and controls were 0.43 ± 0.13 and 0.33 ± 0.09, respectively (P = 0.042). A negative correlation was shown between C/M and bladder compliance (r = -0.488, P = 0.043). The C/M was increased in BPH patients with detrusor overactivity (DO) compared to those without DO (0.490 ± 0.110 and 0.360 ± 0.130, respectively; P = 0.030) and also in patients with urinary retention (P = 0.002). No correlation was shown between C/M and maximum cystometric capacity, BOOI, or BCI. CONCLUSION: Men with BOO/BPH have increased detrusor collagen content which is associated with decreased bladder compliance, detrusor overactivity, and urinary retention.

Periurethral muscle-derived mononuclear cell injection improves urethral sphincter restoration in rats.

AIMS: Investigate the effect of a novel cell-based therapy with skeletal muscle-derived mononuclear cells (SMDMCs) in a rat model of stress urinary incontinence. METHODS: Male Wistar-Kyoto rats' hind limb muscles were enzymatically dissociated, and SMDMCs were isolated without needing expansion. The cell population was characterized. Twenty female rats underwent urethrolysis. One week later, 10 rats received periurethral injection of 106 cells (SMDMC group), and 10 rats received saline injections (Saline group). Ten rats underwent sham surgery (Sham group). Four weeks after injection, animals were euthanized and the urethra was removed. The incorporation of SMDMCs in the female urethra was evaluated with fluorescence in situ hybridization for the detection of Y-chromosomes. Hematoxylin and eosin, Masson's trichrome staining, and immunohistochemistry for actin and myosin were performed. The muscle/connective tissue, actin and myosin ratios were calculated. Morphological evaluation of the urethral diameters and fractional areas of the lumen, mucosa, and muscular layer was performed. RESULTS: SMDMCs population was consistent with the presence of muscle cells, muscle satellite cells, perivascular cells, muscle progenitor cells, and endothelial cells. SMDMCs were incorporated into the urethra. A significant decrease in the muscle/connective tissue ratio was observed in the Saline group compared with the SMDMC and Sham groups. The proportions of actin and myosin were significantly decreased in the Saline group. No differences were observed in the morphometric parameters. CONCLUSIONS: SDMSC were incorporated into the rat urethra and promoted histological recovery of the damaged urethral sphincter, resulting in decreased connective tissue deposition and increased muscle content.