Patients with renal transplant and moderate-to-severe LUTS benefit from urodynamic evaluation and early transurethral resection of the prostate.

PURPOSE: To assess long-term renal function and micturition pattern of males submitted to transurethral resection of the prostate (TURP) for moderate-to-severe lower urinary tract symptoms (LUTS) after renal transplantation (RT). To investigate the role of clinical and urodynamic (UD) parameters for bladder outlet obstruction (BOO) diagnosis in these patients. METHODS: Retrospective data analysis of ≥ 50 years old patients who underwent RT between 01/2005 and 12/2016. Patients with moderate-to-severe LUTS after RT who underwent a urologic evaluation and a UD study were included. TURP was performed in case of BOO diagnosis. Kidney function and micturition patterns were evaluated before, 3, 12, 24, 36, and 48 months after TURP. Predictors of BOO were assessed at univariable and multivariable logistic regression models. Statistical analysis was performed with STATA16. RESULTS: 233 male patients ≥ 50 years underwent RT. 71/233 (30%) patients developed voiding LUTS. 52/71 (73%) patients with moderate-to-severe LUTS underwent UD. TURP was performed in 36/52 (69%) patients, with BOO diagnosis. Median (interquartile range) follow-up was 108 (75-136) months. Maximum flow at flowmetry (Qmax), International Prostate Symptom Score and post-voided residual volume improved significantly after surgery. Serum creatinine decreased and glomerular filtration rate improved significantly at follow-up, especially when TURP was performed ≤ 6 months from RT. At the multivariable model, bladder capacity ≥ 300 mL (OR = 1.74, CI 95% 1.03-3.15, p = 0.043) and detrusor pressure at Qmax (OR = 2.05, CI 95% 1.48-3.02, p = 0.035) were the independent predictors of BOO. CONCLUSION: RT patients with moderate-to-severe LUTS at risk for BOO and graft failure are better identified by UD than clinical parameters. Bladder capacity and voiding pressure are key for the early diagnosis of BOO.

The mechanical stop test and isovolumetric detrusor contractile reserve are associated with immediate spontaneous voiding after transurethral resection of prostate.

PURPOSE: To identify urodynamic factors associated with the mechanical stop test and immediate spontaneous voiding following transurethral resection of prostate (TURP). METHODS: We identified 90 men who underwent TURP over a 12-month period. Forty-three (mean age 68 years) underwent urodynamic evaluation prior to TURP. Isovolumetric detrusor contractile pressure (Piso) was obtained using the mechanical stop test during the voiding phase, and used to calculate detrusor contractile reserve (Pres = Piso - Pdet@Qmax). Primary outcome was spontaneous voiding after TURP. RESULTS: Preoperative catheter-free spontaneous voiding was present in 63% of men (27/43) with a urodynamic (mean ± SD): Qmax 6.2 ± 2.7 mL/s, Pdet@Qmax 102 ± 47 cmH2O, Piso 124 ± 49 cmH2O, Pres 22 ± 16 cmH2O, bladder outlet obstruction index (BOOI) 90 ± 49, and bladder contractility index (BCI) 132 ± 44. The remaining 16 catheter-dependent men demonstrated a urodynamic (mean ± SD): Qmax 3.6 ± 3.3 mL/s, Pdet@Qmax 87 ± 38 cmH2O, Piso 99 ± 51 cmH2O, Pres 10 ± 18 cmH2O, BOOI 82 ± 36, and BCI 106 ± 48. Following TURP, 67% of men voided spontaneously with their first void trial, and in receiver operator analysis of urodynamic measures (Pdet@Qmax, Piso, Pres, BOOI and BCI), only Pres was significantly associated with immediate spontaneous voiding after TURP (threshold Pres ≥ 9 cmH2O, AUC = 0.681, p = 0.035). CONCLUSIONS: In men who underwent TURP, a Pres ≥ 9 cmH2O was associated with immediate spontaneous voiding and may be easily incorporated into the postoperative pathway.

Transurethral prostate surgery as a preventive method against progression of chronic kidney disease in patients with urodynamically proven bladder outlet obstruction.

OBJECTIVE: The present study was aimed to investigate (1) whether urodynamic factors are responsible for kidney damage in patients with bladder outlet obstruction (BOO) and (2) whether transurethral prostate surgery for BOO can alleviate the damage to the kidneys. METHODS: This prospective observational study involved men aged 50-80 years. Prostate size and urodynamic test were performed during screening period. Laboratory tests to measure the glomerular filtration rate, the urinary protein to creatinine ratio and dipstick urinalysis were performed before and 6 months after the transurethral prostate surgery. RESULTS: Sixty-seven patients completed the laboratory study among a hundred enrolled patients with urodynamically proven BOO. Among the urodynamic parameters, only low bladder compliance (lower than 60 mL/cmH2O) was associated with clinically significant proteinuria (p < 0.001). Transurethral prostate surgery significantly improved proteinuria (p = 0.007), especially in patients with low bladder compliance (p = 0.004), and subsequently decreased the risk grade of CKD progression (p < 0.001). CONCLUSIONS: Low bladder compliance in patients with BOO may be a risk factor for kidney damage. Transurethral prostate surgery to relieve BOO could be a preventive method against CKD progression in patients with low bladder compliance.

Persistent storage symptoms after TURP can be predicted with a nomogram derived from the ice water test.

PURPOSE: To predict the persistence of storage symptoms after transurethral resection of the prostate (TURP) using a nomogram derived from the ice water test (IWT). METHODS: The IWTs of 73 men with lower urinary tract symptoms and prostatic bladder outlet obstruction were retrospectively analyzed. The strength of the detrusor contraction was approximated by using the detrusor gradient of Δpdet /Δt at maximum detrusor pressure and the area under the curve. The parameters were utilized in a nomogram, which facilitated a severity categorization from 1 to 10. Patients with a positive IWT in the categories 1 to 2 were assigned to group A, categories 3 to 4 to group B and categories 5 and higher to group C. After TURP, patients with persisting storage symptoms were offered a botulinum toxin injection. RESULTS: There were 32 patients (44%) with negative and 41 patients (56%) with positive IWTs. Patients with negative IWTs were classified in category 1. Regarding patients with positive IWTs, 14 (34%) were correlated to group A, 14 (34%) to group B, and 13 (32%) to group C. The necessity of a subsequent botulinum toxin injection correlated significantly with a higher nomogram category (P < .001) as well as higher severity categorization (P < .001). In multivariate analysis, the nomogram category was an independent predictor for botulinum toxin injection (P = .002, OR, 6.9, CI, 2.0-23.9). CONCLUSION: The quantification of the detrusor contraction during the IWT allowed stratification of patients in risk categories for persistent storage symptoms after TURP and the potential need for later botulinum toxin injections.

Role of poor urethral sphincter relaxation in men with voiding dysfunction refractory to α-blocker therapy: Clinical characteristics and predictive factors.

OBJECTIVES: This study evaluates the diagnostic value of poorly relaxed external sphincter (PRES) in men with voiding dysfunction. We analyzed clinical and video-urodynamic characteristics to identify predictive factors of PRES in patients with lower urinary tract symptoms (LUTS) refractory to α-1 adrenoceptor blocker (α-blocker) therapy. METHODS: This retrospective study included 3379 men with LUTS in whom the initial 1-month α-blocker therapy failed. Clinical parameters and video-urodynamic results were analyzed. Patients with bladder outlet disorders including bladder neck obstruction (BNO), benign prostatic obstruction (BPO), urethral stricture (US), or PRES were categorized according to video-urodynamic findings. Predictive factors for PRES were analyzed. RESULTS: A total of 3379 men were included in this study. Among the patients with voiding dysfunction, 905 (43.6%) had BPO, 624 (30.0%) had BNO, 487 (23.4%) had PRES, and 62 (3.0%) had US. Patients with PRES were younger and had a higher maximum flow rate, larger bladder capacity, smaller total prostate volume (TPV) and transition zone index, and a lower rate of LUTS of urgency or urge urinary incontinence (UUI) than other groups. On multivariate analysis, only small TPV and lower urgency/UUI rate were predictive factors of PRES. A scale composed of voided volume, TPV, and urgency/UUI predicted PRES with high specificity. CONCLUSIONS: PRES was the etiology of voiding dysfunction in 23.4% of the men with LUTS refractory to α-blocker therapy. A simple scale composed of voiding volume, TPV, and urgency/UUI was useful in predicting the presence of PRES before video-urodynamic studies.

Effect of urodynamic preoperative detrusor overactivity on the outcomes of transurethral surgery in patients with male bladder outlet obstruction: a systematic review and meta-analysis.

OBJECTIVE: To investigate the effect of urodynamic detrusor overactivity (DO) on the outcomes of transurethral surgery in patients with male bladder outlet obstruction (BOO). MATERIALS AND METHODS: We systematically searched the PubMed, Embase, and Cochrane Library databases for articles published between January 1989 and June 2017. All results of eligible studies were synthesized. RESULTS: Nine articles met the eligibility criteria. These studies included a total of 932 patients with a median number of 92 patients per study (range 40-190). Of the nine studies, the conventional transurethral prostatectomy was adopted in four studies, photoselective vaporization of prostate in three studies, and other surgical modalities in two studies. In patients with DO positive, the pooled mean difference (MD) was not significant for a better or poorer improvement in the International Prostate Symptom Score [pooled MD, - 0.27; 95% confidence interval (CI), - 1.75 to 1.22; studies, 9; participants, 827], quality-of-life score (pooled MD, - 0.14; 95% CI, - 0.46 to 0.18; studies, 7; participants, 734), maximal flow rate (pooled MD, 0.79; 95% CI, - 1.57 to 3.14; studies, 8; participants, 781), and post-void residual volume (pooled MD, 2.81; 95% CI, - 4.70 to 10.32; studies, 6; participants, 509) compared to patients with DO negative. Some comparisons showed between-study heterogeneity despite the strict criteria of the eligible studies. However, there was no clear evidence of publication bias in the funnel plots. CONCLUSIONS: Our meta-analysis results demonstrated that preoperative urodynamic DO has no diagnostic role in the prediction of surgical outcomes in patients with male BOO.

Benefits and limitations of animal models in partial bladder outlet obstruction for translational research.

The functions of the lower urinary tract have been investigated for more than a century. Lower urinary tract symptoms, such as incomplete bladder emptying, weak urine stream, daytime urinary frequency, urgency, urge incontinence and nocturia after partial bladder outlet obstruction, is a frequent cause of benign prostatic hyperplasia in aging men. However, the pathophysiological mechanisms have not been fully elucidated. The use of animal models is absolutely imperative for understanding the pathophysiological processes involved in bladder dysfunction. Surgical induction has been used to study lower urinary tract functions of numerous animal species, such as pig, dog, rabbit, guinea pig, rat and mouse, of both sexes. Several morphological and functional modifications under partial bladder outlet obstruction have not only been observed in the bladder, but also in the central nervous system. Understanding the changes of the lower urinary tract functions induced by partial bladder outlet obstruction would also contribute to appropriate drug development for treating these pathophysiological conditions. In the present review, we discuss techniques for creating partial bladder outlet obstruction, the characteristics of several species, as well as issues of each model, and their translational value.

The T-plasty as therapy for recurrent bladder neck stenosis: success rate, functional outcome, and patient satisfaction.

PURPOSE: To determine success rate (SR), functional outcome, and patient satisfaction of a modified YV-plasty for reconstruction of the bladder neck in case of recurrent bladder neck stenosis (BNS) after transurethral surgery of the prostate: the T-plasty. PATIENTS AND METHODS: We identified all patients who underwent T-plasty at our center between December 2008 and July 2016. Patients' charts were reviewed. Patients were queried by telephone and by mail at time of follow-up (FU). Primary endpoint was SR. Secondary endpoints were complications, continence, satisfaction, and changes in quality of life measured by validated questionnaires. RESULTS: Thirty patients underwent the T-plasty. Median age at surgery was 69 (IQR 62-73) years. Most patients had BNS due to TUR-P [n = 25 (83.3%)]. No severe blood loss or severe complications occurred perioperatively. Median FU was 45 (IQR 18-64) months. Three patients were lost to FU. Success rate was 100%. Compared to pre-OP Q max, mean Q max post-OP improved significantly [pre-OP 6.79 (SD ± 4.76) ml/s vs post-OP was 24.42 (SD ± 12.61) ml/s; (t(5) = 4.12, p = 0.009)]. Mean post-void residual urine decreased significantly [pre-OP 140.77 (SD ± 105.41) ml vs post-OP 14.5 (SD ± 22.42) ml; (t(9) = -3.86, p = 0.004)]. One patient developed a de-novo-incontinence post-OP. Mean ICIQ-SF Score was 1.2 (SD ± 2.27). 88.5% of patients were pleased or delighted by surgery. 75% of patients claimed their quality of life has been (strongly) improved. CONCLUSIONS: The T-plasty is a valuable option as treatment of recurrent BNS. SR, rates of continence, and high patient satisfaction are very encouraging.

Efficacy of holmium laser enucleation of the prostate (HoLEP) in men with bladder outlet obstruction (BOO) and non-neurogenic bladder dysfunction.

We aimed to compare the short-term outcomes of men who had urodynamic evidence of detrusor underactivity (DU) or detrusor overactivity (DO) of a non-neurogenic etiology as well as bladder outlet obstruction (BOO) and who underwent Holmium Laser Enucleation of the prostate (HoLEP). A database of 322 patients who underwent HoLEP between 2010 and 2014 was analyzed. Patients were classified into three groups according to the results of a preoperative urodynamic study. Preoperative parameters such as International Prostate Symptom Score (IPSS), Quality of Life (QoL) index, IPSS grade, uroflowmetry were compared with postoperative parameters measured at 6 months. There were 138 patients with BOO-only and 89 patients with BOO and detrusor dysfunction including 56 with DO and 33 with DU. The degree of improvement in IPSS-total (BOO: 10.7, DO: 8.3, DU: 7.0; p = 0.023) was greater in the BOO-only group than in the DU group. There were more patients whose IPSS grade improved in the BOO-only group (71%) than in the detrusor dysfunction group (DO: 53.6% and DU: 45.5%). Postoperative IPSS-voiding (4.5 vs 7.0), and Qmax (18 vs 13.7) in the BOO-only group were significantly better than those in the DU group. Additionally, postoperative IPSS-storage (4.7 vs 6.7), and IPSS-total (9.1 vs 12.3) in the BOO-only group were significantly better than in the DO group (all p < 0.05). In conclusion, early surgical management for men with severe LUTS and associated BPH before secondary degeneration occurs may be beneficial for preserving detrusor function and yield better treatment outcomes.

Prediction of sacral neuromodulation treatment success in men with impaired bladder emptying-time for a new diagnostic approach.

INTRODUCTION: Detrusor underactivity (DU) is currently a topic that receives major attention within functional urology. Urologists are often confronted with men who present with voiding dysfunction without bladder outlet obstruction (BOO) or after desobstructive or neuromodulation treatment. Their impaired bladder emptying is suspected to be related to failure of detrusor contractile function. Earlier research indicated that patients with non-obstructive urinary retention (NOR), for example, detrusor underactivity (DU), have a lower success rate after sacral neuromodulation (SNM) compared to patients treated with SNM for storage dysfunction. However, predicting factors for treatment success in the NOR group have not yet been defined. METHODS AND EVIDENCE: The aim of this study was to assess whether the use of the new BOO-contractility (Maastricht-Hannover) nomogram can identify and predict SNM non-responders. Our results in 18 men showed that only 20% of patients below the 10th percentile, but 86% of men between the 10 and 25th percentiles of the nomogram can be treated successfully with SNM. All successfully treated patients voided without needing self- catheterisation. CONCLUSIONS: This pilot study showed for the first time that SNM treatment response in male patients with impaired bladder emptying can be predicted with the BOO-contractility (Maastricht-Hannover) nomogram. Men below the 10th percentile are likely to be treatment non-responders, whereas the majority of men above the 10th percentile are responders. Neurourol. Urodynam. 36:808-810, 2017. © 2016 Wiley Periodicals, Inc.

Discovery of 5-Chloro-1-(5-chloro-2-(methylsulfonyl)benzyl)-2-imino-1,2-dihydropyridine-3-carboxamide (TAK-259) as a Novel, Selective, and Orally Active α1D Adrenoceptor Antagonist with Antiurinary Frequency Effects: Reducing Human Ether-a-go-go-Related Gene (hERG) Liabilities.

A novel structural class of iminopyridine derivative 1 was identified as a potent and selective human α1D adrenoceptor (α1D adrenergic receptor; α1D-AR) antagonist against α1A- and α1B-AR through screening of an in-house compound library. From initial structure-activity relationship studies, we found lead compound 9m with hERG K(+) channel liability. To develop analogues with reduced hERG K(+) channel inhibition, a combination of site-directed mutagenesis and docking studies was employed. Further optimization led to the discovery of (R)-9s and 9u, which showed antagonistic activity by a bladder strip test in rats with bladder outlet obstruction, as well as ameliorated cystitis-induced urinary frequency in rats. Ultimately, 9u was selected as a clinical candidate. This is the first study to show the utility of iminopyridine derivatives as selective α1D-AR antagonists and evaluate their effects in vivo.

Long-term follow-up data more than 5 years after surgical management of benign prostate obstruction: who stands the test of time?

PURPOSE OF REVIEW: Surgical techniques are an integral part of the urologist's armamentarium for the treatment of benign prostatic obstruction. Currently, several techniques are available. The purpose of the current review is to analyse the long-term outcomes of currently available techniques. RECENT FINDINGS: Open prostatectomy shows a low long-term reoperation rate. Available evidence suggests that bipolar transurethral resection of the prostate (TURP) is an attractive alternative to monopolar TURP as both techniques lead to a long-lasting and comparable efficacy. For patients with a larger prostate volume, bipolar enucleation of the prostate appears as safe and effective alternative to open prostatectomy. Holmium laser enucleation of the prostate appears as a durable alternative to TURP and open prostatectomy with comparable long-term results. For photoselective vaporization of the prostate, differently powered models are available. Currently, only long-term data with lower powered 80 W laser are available, reporting reoperation rates higher than those reported from other surgical techniques. On the thulium laser, currently only one study reported 5-year results and despite encouraging results further confirmation seems necessary. SUMMARY: Various surgical methods have proven to be safe and effective for the treatment of benign prostate obstruction and stand the test of time. The choice of the technique depends on prostate size, risk factors of the patient as well as expertise of the surgeon.

Effect of the Chinese traditional prescription Suo Quan Wan on TRPV1 expression in the bladder of rats with bladder outlet obstruction.

BACKGROUND: Suo Quan Wan (SQW) is a Chinese traditional prescription that has been used in clinical treatment of lower urinary tract symptoms for centuries. However, scientific basis of SQW efficacy and mechanism is still needed. This study investigated the effect of SQW on bladder function and transient receptor potential vanilloid 1 (TRPV1) expression in the bladder of rats with bladder outlet obstruction (BOO). The induced changes in bladder function in overactive bladder (OAB) rat model were observed following different periods of outlet obstruction to obtain an appropriate rat model. METHODS: This study was carried out in two parts. In the first part, female Sprague-Dawley rats received sham operations or partial BOO operations. Two, four, and six weeks later, the OAB model groups and control were subjected to urodynamic tests to measure differences in bladder functions. Once the appropriate rat model was obtained, the second part of the experiment was performed. The rat model was recreated and treated with SQW. Urodynamic assessment was conducted, and the bladders of the rats were then removed. Immunofluorescence staining, real-time PCR, and Western blot were performed to localize and quantify the expression of TRPV1 in the bladder. RESULTS: Results of the first part indicated that at 2 and 4 weeks, the OAB model group exhibited significant differences in urodynamic parameters, including bladder pressure, maximum voiding pressure, and maximum bladder capacity, compared with the sham group. At 4 and 6 weeks, the OAB model group exhibited significant differences in residual volume (RV) and non-voiding contraction frequency. Six-week OAB model group showed much more RV but less voiding efficiency when compared with 6-week sham group or 2-and 4-week OAB model group. Rats that underwent BOO exhibited similarities with the compensated state before four weeks and may have entered decompensated state at six weeks. Studies conducted with 4-week OAB model were appropriate. In part two of the experiment, unstable bladder in the OAB model group recovered bladder stability after SQW treatment, accompanied by improved bladder hypertrophy, as well as corrected urodynamic parameters. Expression of TRPV1 mRNA and proteins in the bladder was significantly greater in the OAB model group than that in the control group, which subsequently decreased significantly with SQW treatment in BOO-induced rats. CONCLUSIONS: SQW can modulate the expression of TRPV1 in accordance with the recovery of bladder function.

Establishment and value assessment of efficacy prediction model about transurethral prostatectomy.

OBJECTIVES: To establish and to evaluate discriminant models to predict the outcomes of transurethral prostatectomy. METHODS: Clinical data of patients treated with transurethral prostatectomy between January and December 2013 were collected, including medical history, symptoms, biochemical tests, ultrasonography and urodynamics. Surgical efficacy was evaluated at 6-month follow up. Predictive models were constructed by logistic regression. Receiver operating characteristic curve and diagnostic tests were used to test the accuracy of models before the predictive value between models was compared. RESULTS: A total of 182 patients were included, with 73.6% having an effective outcome. History of recurrent urinary tract infection (OR 1.33), score of storage phase (OR 2.58), maximum flow rate (OR 2.11) and detrusor overactivity (OR 3.13) were found to be risk factors. International Prostate Symptom Score (OR 0.13), transitional zone index (OR 0.58), resistive index of prostatic artery (OR 0.46), bladder wall thickness (OR 0.78), ultrasonic estimation of bladder weight (OR 0.28), bladder outlet obstruction index (OR 0.20) and bladder contractility index (OR 0.83) were found to be protective factors. The areas under the curve of models using factors from ultrasonography and urodynamics were 0.792 and 0.829 respectively, with no significant difference being found between them (P = 0.348). CONCLUSIONS: Surgical efficacy of transurethral prostatectomy is positively correlated to severe voiding phase symptoms, outlet obstruction and better detrusor contractility, and negative correlated with urinary infection, severe storage phase symptoms and excessive detrusor contractibility. Ultrasonography might replace urodynamics in selecting patients for whom transurethral prostatectomy is more likely to be beneficial.

Effect of Detrusor Overactivity on Functional Outcomes After Holmium Laser Enucleation of the Prostate in Patients With Benign Prostatic Obstruction.

OBJECTIVE: To investigate the effect of detrusor overactivity (DO) on functional outcomes after holmium laser enucleation of the prostate (HoLEP). MATERIALS AND METHODS: One hundred ten men with benign prostatic obstruction were evaluated retrospectively. International Prostate Symptom Score, International Continence Society male questionnaire short form, 3-day voiding diary, and uroflowmetry with postvoid residual were evaluated preoperatively and at 3 and 6 months postoperatively. The patients underwent urodynamic study preoperatively and were divided into the DO group (58 of 110, 52.7%) and the non-DO group (52 of 100, 47.3%). RESULTS: Patients in the DO group were older than those in the non-DO group (71.4 vs 66.4 years), although prostate volume and degree of obstruction were not significantly different between the 2 groups. All International Prostate Symptom Score and uroflowmetry parameters improved significantly at the 3- and 6-month follow-ups. Storage symptoms in both groups were comparable preoperatively (9.7 vs 8.6); these improved similarly in both groups during follow-up (5.0 vs 4.0, 6-month follow-up). The number of patients taking anticholinergics increased significantly after HoLEP, from a baseline of 17 patients to 49 patients at the 3-month follow-up and 39 at the 6-month follow-up. More patients in the DO group were taking anticholinergics at the end of the follow-up period (48.3% vs 21.2%). CONCLUSION: Although the storage symptoms improved significantly in both groups, a significant number of patients with DO group took anticholinergics after HoLEP. We recommend that surgeons should counsel the possibility of taking anticholinergics in the early postoperative period to the patients with DO at baseline.

Vapoenucleation of the prostate using a high-power thulium laser: a one-year follow-up study.

BACKGROUND: Prostate vaporization and enucleation is a novel treatment option for bladder outlet obstruction caused by benign prostate enlargement. This surgical technique, however, has not yet been standardized. We present our findings of using a high-power thulium laser to accomplish vapoenucleation of the prostate (ThuVEP). METHODS: We prospectively collected and analyzed data from 29 patients who underwent ThuVEP between August 2010 and May 2012. The control group included 30 patients who underwent traditional transurethral resection of the prostate (TURP). Operative variables, patient profiles, preoperative and postoperative urine flow rates, prostate volume (measured using transrectal ultrasonography), and the international prostate symptom score (IPSS) were recorded and analyzed using a two-tailed Student's t-test and analysis of variance. RESULTS: The ages (mean ± SD) of the patients were 76.1 ± 9.4 and 72.6 ± 7.4 years (p = 0.28) in the ThuVEP and TURP groups, respectively. The average urinary flow rates before and 12 months after the operation (volume/maximum flow/average flow) were 243.3/10.5/5.0 and 302.8/17.6/9.4 (in mL, mL/s, mL/s, respectively) in the ThuVEP group and 247.2/10.8/4.6 and 369.9/20.8/12.0, respectively, in the TURP group. Preoperative and postoperative IPSSs were 17.1 ± 5.0 and 6.5 ± 3.8, respectively, in the ThuVEP group and 18.2 ± 4.5 and 6.2 ± 3.3, respectively, in the TURP group. The mean ratio of the estimated postoperative residual prostate volume to the preoperative total volume was 0.47 (p = 0.449) in both groups. The overall complication rate was 20.7% in the ThuVEP group and 30.0% in the TURP group. CONCLUSIONS: One year of follow-up showed that ThuVEP and TURP effectively alleviated subjective and objective voiding symptoms with a low rate of complications. Thus, vapoenucleation using a high-power laser is feasible in elderly patients. TRIAL REGISTRATION: ISRCTN registry with study ID ISRCTN52339705 . Date assigned: 06/03/2015.

[Clinical observation of acupoint application therapy on senile female bladder neck obstruction].

OBJECTIVE: To observe the clinical efficacy on senile female bladder neck obstruction treated with acupoint application, therapy and western medication. METHODS: Fifty cases of senile female bladder neck observation were randomized into an obstrvation group and a control group, 25 cases in each one. Tamsulosin hydrochloride capsules were taken orally in the two groups, 0.2 mg every night, continuously for 100 days. In the observation group, with radix aconiti lateralis preparata, semen brassicae and fructus ligustri lucidi contained, bushentongyu plaster was used at Shenque (CV 8), Sanyinjiao (SP 6), Pangguangshu (BL 28), Zhongji (CV 3) and Sanjiaoshu (BL 22), once every two days. Eight treatments made one session and 6 sessions were required totally. The international prostate symptom score (IPSS), the bother score (BS), the residual volume (RV) and the maximal urinary flow rate (MFR) were observed before and after treatment in the two groups. The clinical efficacy was compared between the two groups. RESULTS: Every score in IPSS after treatment was reduced apparently as compared with that before treatment in the two groups (all P < 0.01). The improvements in feeling of incomplete, bladder emptying, intermittency < 2 h, urgency, interupted urination and nocturia in the observation group were more advantageous than those in the control group (all P < 0.05). The total effective rate was 95.65% (22/23) in the observation group, higher than 85.71% (18/21) in the control group (P < 0.05). After treatment, RV, MFR and BS were significantly different as compared with those before treatment (all P < 0.05). CONCLUSION: The combined therapy of acupoint application of bushentongyu plaster and oral administration of tamsulosin hydrochloride capsules achieves the significant efficacy on senile female bladder neck obstruction as compared with the simple administration of tamsulosin hydrochloride capsules.

Prediction of persistent storage symptoms after transurethral resection of the prostate in patients with benign prostatic enlargement.

OBJECTIVE: To identify the prognostic factors causing persistent storage symptoms following transurethral resection of the prostate in patients with benign prostatic enlargement (BPE). METHODS: A total of 116 men with symptomatic BPE requiring surgery were enrolled in the study between January 2011 and December 2012. The patients underwent basic clinical evaluations including transrectal ultrasound, International Prostate Symptom Score and urodynamic study. After 6 months, International Prostate Symptom Score and uroflowmetry were rechecked. The definition of persistent storage symptoms was patients with storage scores >7 points. Logistic regression analysis and receiver operating characteristic analysis were conducted. RESULTS: The 116 patients were divided into a persistent storage symptom-positive group (n = 33) and a storage symptom-negative group (n = 83). Multivariate analysis showed that the degrees of worse initial storage symptoms (odds ratio [OR] = 8.32), small bladder capacity (OR = 4.31), impaired detrusor contractility (OR = 2.96) and age (OR = 1.05) were consistently associated with persistent storage symptoms. CONCLUSIONS: This short-term study confirms the positive and consistent correlations between the baseline degree of worse initial storage symptoms, bladder capacity, detrusor contractility and age and the improvement in storage symptoms.

A review of lower urinary tract symptoms in patients with Parkinson's disease.

To critically review recent literature on lower urinary tract symptoms (LUTS) in patients with Parkinson's Disease.A literature search was conducted using the keywords LUTS, urinary symptoms, non-motor, and Parkinson's disease (PD) via the PubMed/Medline search engine. In the literature, we critically examined lower urinary symptoms in Parkinson's patients by analyzing prevalence, pathogenesis, urinary manifestations, pharmacologic trials and interventions, and prior review articles. The data collected ranged from 1986 to the present with an emphasis placed on recent publications.The literature regards LUTS in PD as a major comorbidity, especially with respect to a patient's quality of life. Parkinson's patients experience both storage and voiding difficulties. Storage symptoms, specifically overactive bladder, are markedly worse in patients with PD than in the general population. Surgical management of prostatic obstruction in PD can improve urinary symptoms. Multiple management options exist to alleviate storage LUTS in patients with PD, ranging from behavioral modification to surgery, and vary in efficacy.Lower urinary tract dysfunction in PD may be debilitating. Quality of life can be improved with a multi-pronged diagnosis-specific approach to treatment that takes into consideration a patient's ability to comply with treatment. A stepwise algorithm is presented and may be utilized by clinicians in managing LUTS in Parkinson's patients.