体外磁场盆底神经强化治疗经尿道前列腺电切术后尿失禁

目的：探讨体外磁场盆底神经强化治疗经尿道前列腺电切术后尿失禁的疗效及可行性。方法：对9例经尿道前列腺电切术(TURP)后尿失禁的患者，采用美国Neotonus公司生产的磁场神经强化治疗椅行体外磁场盆底神经强化治疗，并进行随访。结果：9例患者在完成1个疗程的治疗后均收到了较满意的治疗效果，其中6例漏尿完全消失(66．7％)，其余3例(33．3％)漏尿次数明显减少，每天用尿垫不多于1块。结论：体外磁场盆底神经强化是一种理想的治疗轻、中度TURP术后尿失禁的非侵入性方法．并具有无痛、患者易接受、副作用少等优点。     

Extracorporeal magnetic innervation increases functional bladder capacity and quality of life in patients with urinary incontinence after robotic-assisted radical prostatectomy

ObjectivePostprostatectomy incontinence (PPI) is a major health problem that has substantial effects on health-related quality of life. In recent years, extracorporeal magnetic innervation (ExMI) has become a preferred treatment method for urinary incontinence. We evaluated the effects of ExMI on patients with PPI after robotic-assisted radical prostatectomy (RARP), specifically regarding health-related quality of life.Materials and methodsFrom September to December 2014, patients with post-RARP PPI were enrolled in the study. A 20-minute ExMI treatment session was provided twice a week for two months. Number of voids, incontinence and urgency episodes, and mean and maximum voided volume per micturition (mL) were recorded in a 3-day bladder diary. Quality of life was assessed using the Urogenital Distress Inventory (UDI-6), Incontinence Impact Questionnaire (IIQ-7), and International Prostate Symptom Score quality-of-life questionnaire (IPSS-QoL). All assessments were conducted before and within 2 weeks after ExMI treatment. A favorable outcome was defined as an IPSS-QoL score <2 or a >2-point decrease in the pretreatment score.ResultsThirteen patients with a mean age of 69.3 years were enrolled. After ExMI, the number of incontinence episodes/3 d decreased to 5.85 from 9.15 (p = 0.004). The mean number of voids/d also decreased to 9.17 from 10.45 (p = 0.036). Patients' functional bladder capacity increased from 243.46 to 289.23 (p = 0.007). Scores of both UDI-6 and IPSS-QoL improved from 7.15 to 5.31 (p = 0.024) and 4.00 to 2.77 (p = 0.007). Patients aged <70 years were more likely to have a favorable outcome [odds ratio (OR) 28.6, confidence interval (CI) 1.12–731.40].ConclusionExMI decreases the number of incontinence episodes, increases functional bladder capacity and quality of life in patients with post-RARP PPI, and may be considered as an option for patients with PPI.     

Functional magnetic stimulation for mixed urinary incontinence

PURPOSE: In this study we determined the efficacy of functional magnetic stimulation (FMS) compared to placebo for treating women with mixed urinary incontinence (MUI). MATERIALS AND METHODS: A total of 39 women with MUI were randomly assigned to the FMS group (23 patients) or to the placebo group (16 patients). FMS was applied continuously at 18.5 Hz day and night for 2 months. Conventional urodynamic studies were performed before and after stimulation. Outcome measures assessed were clinical (daytime frequency, nocturia, pad use, pad weight) and urodynamic variables (first sensation of bladder filling, maximum cystometric capacity, maximum urethral closure pressure), and patient subjective assessment (visual analogue scale). RESULTS: After 2 months of FMS significant decreases in voiding frequency (from 9.0 to 6.7, p = 0.0002), nocturia (from 2.6 to 1.4, p = 0.0007) and pad use (from 3.9 to 2.2, p = 0.007) were observed only in the FMS group. First sensation of bladder filling and maximum cystometric capacity increased significantly after stimulation compared with prestimulation levels only in the FMS group, p = 0.003 (from 118 to 174 ml) and p = 0.00004 (from 267 to 396 ml), respectively. A total of 18 women (78.3%) reported an improvement in symptoms after FMS with an average success rate of 41.9%. The success rate was significantly lower in the placebo group (p = 0.021) at 22.9%. CONCLUSIONS: Functional magnetic stimulation was useful and safe for treating women with MUI.     

Urodynamic characteristics of mixed urinary incontinence and idiopathic urge urinary incontinence

PURPOSE: To evaluate and compare the clinical and urodynamic findings in patients with either mixed urinary incontinence (MUI) or simple urge urinary incontinence (UUI). MATERIALS AND METHODS: A series of 100 consecutive female patients with MUI and UUI were identified from a database. Patients with neurogenic bladder, fistula, urethral diverticulum, prior urologic surgery or known urinary tract obstruction were excluded. All patients were classified according to the urodynamic classification of overactive bladder of Flisser et al. and all patients underwent history, physical examination, validated incontinence questionnaire, 24-hour voiding diary, 24-hour pad test, video urodynamic study (VUDS), and cystoscopy. RESULTS: A significantly higher proportion of patients with UUI exhibited detrusor overactivity at VUDS, (67% of the patients with UUI vs. 24% of the MUI, P < 0.05). Patients with UUI had fewer episodes of incontinence (6.7 vs. 4.2, P < 0.05) with slightly less objective urine loss (24-hour pad test 94 gm vs. 128 g of loss, P < 0.05) and voided at higher pressures (p(det) at Q(max) 21.4 vs. 15.6 cm H(2)O, P < 0.05). Patients in both groups had functional and urodynamic bladder capacities that were not statistically different. CONCLUSIONS: Women with UUI were more likely to exhibit detrusor overactivity but experienced fewer episodes of incontinence and less urinary loss when compared with women who had MUI. The "urge incontinence" component of MUI appears to be different than that of UUI, and suggests that urge incontinence may be overdiagnosed in patients with SUI who misinterpret their fear of leaking (because of SUI) for urge incontinence.     

Home uroflowmetry for the evaluation of boys with urinary incontinence

PURPOSE: We recorded uroflowmetry at home in boys with urinary incontinence and correlated the results with videourodynamics. MATERIALS AND METHODS: Thirty-nine boys (mean age 8.4 +/- 2.0 years) with urinary incontinence underwent home uroflowmetry for 1 weekend. Artifactual spikes in 1 or more uroflow curves were present in 16 home uroflowmetry recordings. One patient, in whom none of the uroflow curves was interpretable, was excluded from the study. Of the remaining 38 boys 18 had monosymptomatic nocturnal enuresis, and 20 had nocturnal enuresis and diurnal voiding symptoms. Percentage expected bladder capacity is defined as functional/expected bladder capacity x 100%. Normal and obstructive home uroflowmetry levels are defined as functional bladder capacity at least 50% expected bladder capacity associated with multiple bell-shaped and obstructive uroflow curves, respectively. Small functional bladder capacity is defined as capacity less than 50% expected bladder capacity, regardless of uroflow patterns. Videourodynamics and cystoscopy were performed in 17 patients. RESULTS: Normal home uroflowmetry was noted in 5 patients (13%), obstructive uropathy in 8 (21%) and small functional bladder capacity in 25 (66%). Urodynamically 3 boys with normal home uroflowmetry had normal voiding, and 6 with obstructive home uroflowmetry had bladder outlet obstruction (of whom 1 also had detrusor overactivity). In addition, of 8 boys with small functional bladder capacity 4 had detrusor overactivity, 3 had bladder outlet obstruction and 1 had both findings. CONCLUSIONS: Normal home uroflowmetry predicted normal voiding, and abnormal recordings implied abnormal voiding function in boys with incontinence. Bladder outlet obstruction and detrusor overactivity were frequently disclosed by obstructive home uroflowmetry and small functional bladder capacity.     

Guideline of guidelines: urinary incontinence

The objective of the article is to review key guidelines on the management of urinary incontinence (UI) to guide clinical management in a practical way. Guidelines produced by the European Association of Urology (updated in 2014), the Canadian Urological Association (updated in 2012), the International Consultation on Incontinence (updated in 2012), and the National Collaborating Centre for Women's and Children's Health (updated in 2013) were examined and their recommendations compared. In addition, specialised guidelines produced by the collaboration between the American Urological Association and the Society of Urodynamics, Female Pelvic Medicine and Urogenital Reconstruction on overactive bladder and the use of urodynamics were reviewed. The Appraisal of Guidelines for Research and Evaluation II (AGREE) instrument was used to evaluate the quality of these guidelines. There is general agreement between the groups on the recommended initial evaluation and the use of conservative therapies for first‐line treatment, with a limited role for imaging or invasive testing in the uncomplicated patient. These groups have greater variability in their recommendations for invasive procedures; however, generally the mid‐urethral sling is recommended for uncomplicated stress UI, with different recommendations on the approach, as well as the comparability to other treatments, such as the autologous fascial sling. This ‘Guideline of Guidelines’ provides a summary of the salient similarities and differences between prominent groups on the management of UI.     

Extracorporeal magnetic innervation therapy for stress urinary incontinence

Objectives. To report the first data from a prospective clinical study to determine the feasibility of using extracorporeal magnetic innervation (ExMI) for the treatment of stress urinary incontinence.Methods. We studied 83 women with demonstrable stress urinary incontinence. Treatments were for 20 minutes, twice a week for 6 weeks. For treatment, the patient sits fully clothed on a special chair; within the seat is a magnetic field generator that produces the rapidly changing magnetic field flux. Objective measures included bladder diaries, dynamic pad weight testing, urodynamic studies, and quality of life survey.Results. Fifty patients have been followed up for longer than 3 months (33 patients for less than 3 months); 17 patients (34%) were dry, 16 (32%) were using not more than 1 pad per day, and 17 (34%) were using more than 1 pad per day. Pad use was reduced from 2.5 to 1.3 (P = 0.001) and leak episodes per day were reduced from 3.3 to 1.7 (P = 0.001). The pad weight was reduced from 20 to 15 g. Detrusor instability was found in 5 patients before but was demonstrated in only 1 patient after treatment.Conclusions. ExMI therapy offers a new effective modality for pelvic floor muscle stimulation. ExMI is painless, there is no need for a probe, and no need to undress for treatments. Longer follow-up is required to determine how long the benefits of treatment last and whether retreatment will be necessary.     

The male sling for stress urinary incontinence: urodynamic and subjective assessment

PURPOSE: We prospectively examined whether the fixed urethral resistance of the perineal male sling for the treatment of stress incontinence causes significant bladder outlet obstruction or de novo voiding dysfunction. MATERIALS AND METHODS: A total of 22 patients (average age 67 years old) were evaluated before and after surgery with videourodynamics, the self-administered UCLA Prostate Cancer Index incontinence section and pad score. RESULTS: Mean followup was 25 months (range 6 to 42). All patients complained of a moderate to severe problem before surgery. After surgery 16 (73%) reported a very small problem/no problem, 3 (14%) a moderate problem and 3 (14%) reported a big problem. Average pad use +/- SD decreased from 4.6 +/- 2.5 to 0.74 +/- 1.0 pads (p <0.01). Median UCLA Prostate Cancer Index incontinence score increased from 82 to 313, p <0.001. Mean retrograde leak point pressure (RLPP) increased from 30.4 +/- 15.9 to 59.9 +/- 9.7 cm water. Bladder outlet obstruction did not develop in any patients after surgery. Average maximum flow rate did not change significantly (17.7 +/- 6.5 vs 19.2 +/- 9.7 ml per second, p = 0.6). Nor was there a significant change in detrusor pressure at maximum flow rate (40.3 +/- 9.2 vs 45.8 +/- 14.7 cm water, p = 0.3). While de novo urgency or urge incontinence did not develop in any patients, 2 of 5 patients with a moderate/big leakage problem demonstrated postoperative detrusor overactivity on cystometry. Both individuals requiring more than 3 pads daily had a postoperative RLPP of less than 50 cm water. CONCLUSIONS: Pad use, leak point pressure and urinary incontinence scores are significantly improved after sling surgery. Fixed resistance does not lead to bladder outlet obstruction. Postoperative RLPP less than 50 cm water and urodynamic detrusor overactivity are associated with increased pad use and bother.     

超声尿动力学检查对女性压力性尿失禁行TVT-O手术的指导价值

目的 探讨超声尿动力学检查对女性压力性尿失禁(SUI)的诊断价值及其对经闭孔阴道无张力吊带术(TVT-O)手术的指导价值.方法 对41例SUI患者行超声尿动力学检查,重点了解膀胱尿道连接部活动度( UVJ-M)及腹压漏尿点压力(ALPP),并据此对SUI进行分型,再结合尿失禁临床分度以决定行TVT-O手术.结果 A型,UVJ-M≤l.5cm,ALPP ＞55cmH2O,7例;B型,UVJ-M＞1.5cm,ALPP＞55 cmH2O,11例;C型,UVJ-M≤1.5cm,ALPP≤55cmH2O,10例;D型,UVJ-M＞1.5cm,ALPP≤55cmH2O,13例;其中B型中的Ⅱ度、C型和D型患者共26例行TVT-O手术治疗.术后随访时间3～ 29个月,平均11个月.拔管后除2例重度咳嗽时有漏尿现象外,其余皆尿失禁消失,无一例复发.结论 超声尿动力学检查对SUI患者选择TVT-O手术有客观的针对性,具有重要的指导价值.     

Surgical treatment for stress urinary incontinence

Abstract:   The prevalence of stress urinary incontinence is quite significant with large numbers of women affected. Many of these women will not seek medical help in the belief that they will not be cured or improved. With the increasing numbers of procedures now available we present a review of both established and novel surgical techniques that is intended to help both urologists and primary care physicians in the counselling of patients complaining of stress incontinence. We compare the "gold standards" of surgical treatment for all types of stress incontinence with the newer techniques that have recently become popular among urologists and gynaecologists.     

压力性尿失禁患者的尿流动力学研究

目的　了解压力性尿失禁患者的尿流动力学特点,为明确诊断及合理治疗提供参考。方法　对临床诊断为压力性尿失禁的30例患者进行系统尿流动力学研究,并与正常对照组(30 例)比较。结果　两组最大尿流率分别为(30.12±9.81)mL/s、(18.70±8.31)mL/s,平均尿流率分别为(15. 18±7. 22) mL/s、(12. 30±7. 21) mL/s,初感容量分别为(175. 20±57. 34) mL、(165.70±40.65)mL,强烈尿感容量分别为(354.83±52.83)mL、(339.20±50.84)mL,最大尿道闭合压分别为(84.93 ±45.81)cm H2O、(110.23±32.26)cm H2O,压力性尿失禁组测得Valsalva漏尿点压力(73.70±22.61) cm H2O,出现异常尿流曲线7例(23.3%),残余尿 10 例(33. 3%),合并逼尿肌不稳定性收缩 3 例(10%),肌电图协同失调 5 例(16. 7%),正常对照组均无。结论　压力性尿失禁患者是一个复杂的群体,尿流动力学检查对于明确其诊断,选择正确的治疗方法,提高治疗效果有着重要意义。     

Neuromodulation for the treatment of urinary incontinence

Abstract:   Neuromodulation has been reported to be effective for the treatment of stress and urgency urinary incontinence. The cure and improvement rates of pelvic floor neuromodulation in urinary incontinence are 30–50% and 60–90%, respectively. In clinical practice, vaginal, anal and surface electrodes are used for external, short-term stimulation, and sacral nerve stimulation for internal, chronic (long-term) stimulation. The effectiveness of neuromodulation has been verified in a randomized, placebo-controlled study. However, the superiority to other conservative treatments, such as pelvic floor muscle training has not been confirmed. A long-term effect has also been reported. In conclusion, pelvic floor exercise with adjunctive neuromodulation is the mainstay of conservative management for the treatment of stress incontinence. For urgency and mixed stress plus urgency incontinence, neuromodulation may therefore be the treatment of choice as an alternative to drug therapy.     

Factors influencing self-perceived disease severity in women with stress urinary incontinence combined with or without urge incontinence

AIMS: The aim of this study was to assess the impact of patient-perceived disease severity (PPDS) on the quality of life (QoL) of women with urinary incontinence (UI) and to identify factors predicting PPDS. METHODS: A total of 109 women (mean age 54.9; range 31-77) with stress UI combined with or without urge UI were included in the primary analyses. The incontinence quality of life (I-QoL) devised during the course of this study was used to assess the QOL impact of UI. RESULTS: PPDS of women with UI increased as I-QoL scores decreased (P<0.001). When analyzed by patient characteristics and objective test results, PPDS increased only with the number of episodes (P=0.005) and pad test weight increased (P=0.010). By multivariate regression analysis, patients who complained of UI "three to four times a day or more" had 6.4-fold higher risk (P=0.027) of perceiving that their symptoms were more severe than those who complained of a UI "one to two times per week or less." Patients with a pad test weight of >25 g had a 4.7-fold higher risk of perceiving their symptoms were more severe than those with a pad test weight of <15 g. CONCLUSIONS: Our results suggest that the frequency of UI episodes and the volume of urine loss are associated with PPDS. In addition, the I-QoL scores deteriorated significantly as the PPDS of incontinence increased. Thus, PPDS may impact on the QoL of women with stress UI combined with or without urge UI.     

塞来昔布对压力性尿失禁模型大鼠的效果及作用机制

目的研究塞来昔布对压力性尿失禁模型大鼠的干预效果及作用机制。方法建立压力性尿失禁大鼠模型后分为模型组和塞来昔布组各18只,正常组10只。塞来昔布组大鼠采用塞来昔布进行干预,模型组和正常组大鼠采用等体积的无菌蒸馏水干预,设置喷嚏试验、检测尿流动力学指标,然后测定漏尿点压力(LPP)、腹部漏尿点压力(ALPP),观察3组大鼠病理形态学特征,Western blot检测转化生长因子-β1(TGF-β1)、结缔组织生长因子(CTGF)通路蛋白表达,酶联免疫吸附试验法检测环氧化酶2(COX-2)、脂肪氧化酶(LOX)、基质金属蛋白酶-2(MMP-2)蛋白水平。结果喷嚏实验阳性率模型组66.67%,显著大于塞来昔布组的27.78%,差异具有显著性统计学意义(P<0.05);LPP、ALPP、TGF-β1、CTGF水平及LOX蛋白水平均为模型组<塞来昔布组<正常组(P均<0.05),COX-2、MMP-2蛋白水平均为模型组>塞来昔布组>正常组(P均<0.05)。结论塞来昔布对压力性尿失禁模型大鼠的治疗效果显著,通过调控TGF-β1/CTGF通路蛋白,可以改善大鼠COX-2、LOX、MMP-2水平,对于治疗和预防压力性尿失禁的研究提供了方向。     

Urodynamic evaluation of sacral neuromodulation for urge urinary incontinence

OBJECTIVE

To evaluate the urodynamic data before and 6 months after implantation of sacral neuromodulation (SNM, an established treatment for voiding dysfunction, including refractory urge urinary incontinence, UI) and to assess the correlation between the urodynamic data and clinical efficacy in patients with UI.

PATIENTS AND METHODS

In all, 111 patients with a >50% reduction in UI symptoms during a percutaneous nerve evaluation test qualified for surgical implantation of SNM. Patients were categorized in two subgroups, i.e. those with UI with or without confirmed detrusor overactivity (DO) at baseline. At the 6‐month follow‐up all patients had a second urodynamic investigation, with the stimulator switched on.

RESULTS

At baseline, there was urodynamically confirmed DO in 67 patients, while 44 showed no DO. A review of filling cystometry variables showed a statistically significant improvement in bladder volumes at first sensation of filling (FSF) and at maximum fill volume (MFV) before voiding for both UI subgroups, compared with baseline. In 51% of the patients with UI and DO at baseline, the DO resolved during the follow‐up. However, those patients were no more clinically successful than those who still had DO (P = 0.73). At the 6‐month follow‐up, 55 of 84 implanted patients showed clinical benefit, having a ≥50% improvement in primary voiding diary variables. Patients with UI but no DO had a higher rate of clinical success (73%) than patients with UI and DO (61%), but the difference was not statistically significant.

CONCLUSION

These urodynamic results show a statistically significant improvement in FSF and MFV in patients with UI with or with no DO after SNM. Although there was a urodynamic and clinical improvement in both groups, patients with UI but no DO are at least as successful as patients with UI and DO. Therefore in patients with UI, DO should not be a prerequisite selection criterion for using SNM.     

Sphincteric urinary incontinence: relationship of vesical leak point pressure,urethral mobility and severity of incontinence

PURPOSE: We examined the relationships among urethral hypermobility, intrinsic sphincter deficiency and incontinence in women. MATERIALS AND METHODS: A total of 65 consecutive women with stress urinary incontinence and 28 with lower urinary tract symptoms not associated with stress urinary incontinence were evaluated with videourodynamics, 24-hour voiding diaries and pad tests, vesical leak point pressure measurement and the cotton swab test. RESULTS: A total of 93 patients with a mean age +/- SD of 63 +/- 13 years were studied, including 65 who presented with stress urinary incontinence and 28 who presented with lower urinary tract symptoms without stress urinary incontinence. The incidence of urethral hypermobility was 32% in the stress urinary incontinence group and 36% in the lower urinary tract symptoms group (p = 0.46). When stress urinary incontinence cases were stratified according to a vesical leak point pressure of 0 to 60, 60 to 90 and greater than 90 cm. H2O, urethral hypermobility was noted in 25%, 31% and 41%, respectively, a difference that was not statistically significant (p = 0.6). Overall incontinent patients with and without urethral hypermobility had the same median number of incontinence episodes (5, range 1 to 13 versus 7, range 1 to 15, p = 0.39) and median pad weight (39.5 range 1 to 693 gm. versus 33.5, range 1 to 751, p = 0.19). When patients with intrinsic sphincter deficiency, defined as vesical leak point pressure less than 60 cm. H2O, were divided into those with and without urethral hypermobility, there were no differences in the mean number of incontinence episodes (9.4 +/- 3 versus 6 +/- 3.6, p = 0.17) or median pad weight (90 gm., range 10 to 348 versus 86, range 30 to 81, p = 0.76). The degree of change in the urethral angle did not correlate with vesical leak point pressure (r = 0.16, p = 0.24) or with pad weight (r = -0.23, p = 0.1). CONCLUSIONS: Urethral hypermobility was equally common in this group of women with lower urinary tract symptoms and stress urinary incontinence. Intrinsic sphincteric deficiency and urethral hypermobility may coexist and they do not define discrete classes of patients with stress urinary incontinence. Urethral hypermobility did not appear to have an independent effect on the frequency or severity of incontinence. Patients with stress urinary incontinence can still be characterized by vesical leak point pressure and change in the urethral angle, although these variables do not always define discrete classes.     

The relationships among measures of incontinence severity in women undergoing surgery for stress urinary incontinence

PURPOSE: We assessed the relationships among severity measures of urinary incontinence in women with stress predominant symptoms enrolled in a randomized clinical trial comparing 2 surgical techniques (Burch colposuspension vs pubovaginal sling) for stress urinary incontinence. MATERIALS AND METHODS: A total of 655 women underwent a standardized preoperative assessment that included the Medical, Epidemiological and Social Aspects of Aging questionnaire, Urogenital Distress Inventory, Incontinence Impact Questionnaire, 3-day voiding diary, 24-hour pad test, a supine empty bladder stress test and Valsalva leak point pressure measurements. Correlations were estimated using Spearman correlation coefficients and 95% confidence intervals. T tests at alpha=0.05 were conducted to compare the distributions of the continuous severity measure between patients with positive and negative supine empty bladder stress test. RESULTS: Baseline mean scores on Medical, Epidemiological and Social Aspects of Aging, Urogenital Distress Inventory and Incontinence Impact Questionnaire were 25.8, 151 and 171, respectively. Mean incontinence episode frequency and pad weight were 3.2 per day and 43.5 gm, respectively. Supine empty bladder stress test was positive in 218 patients, and 428 patients had valid Valsalva leak point pressure measurements with a mean Valsalva leak point pressure of 80 cm H(2)O. Weak to moderate correlations were observed between Medical, Epidemiological and Social Aspects of Aging, incontinence episode frequency, pad weight, Incontinence Impact Questionnaire and Urogenital Distress Inventory. On the other hand, Valsalva leak point pressure correlated poorly with all variables measured. The sensitivity and specificity of the supine empty bladder stress test to predict intrinsic sphincter dysfunction were 49% and 60%, respectively. CONCLUSIONS: Urinary incontinence severity measures correlate moderately with each other at best. While Medical, Epidemiological and Social Aspects of Aging demonstrated stronger correlations with the other measures of severity and quality of life, Valsalva leak point pressure did not. Supine empty bladder stress test did not demonstrate a clinically significant association among severity measures.