Our experiences in bipolar radiofrequency thermotherapy system as an alternative treatment in LUTS

We aimed to evaluate the efficacy of the bipolar radiofrequency thermotherapy system as a minimally invasive treatment method in lower urinary tract symptom treatment and its effect on the patients’ quality of life (QoL). The thermotherapy system was applied to 118 patients between May 2016 and September 2017 with the requirement of surgical treatment for benign prostatic hyperplasia, who either could not be operated upon due to their comorbidities or preferred to undergo this procedure as an alternative treatment method. The International Prostate Symptom Score (IPSS) and QoL scores and maximal flow rate (Qmax) and post‐voiding residue (PVR) values were evaluated before and after treatment. For the 80 patients who completed the 2‐year follow‐up period, the Qmax values were observed to be increased at each follow‐up evaluation and PVR, QoL and IPSS were observed to be decreased. These changes were statistically significant from the baseline. In this study we found there was 48.8% increase in Qmax, 72.1% decrease in IPSS, 70.8% decrease in the QoL score, 51.1% decrease in PVR of 80 patients who underwent bipolar radiofrequency prostate ablation. The bipolar radiofrequency prostate thermotherapy system can be safely applied as an outpatient treatment in high‐risk cases or for those who are anxious about surgical interventions.     

Efficacy of Additional Dutasteride on Lower Urinary Tract Symptoms in Patients with Alpha‐1 Blocker‐Resistant Benign Prostatic Hyperplasia

Objective: We investigated the effects of dutasteride on urination and quality of life (QOL) in patients diagnosed with benign prostatic hyperplasia (BPH) who showed poor improvement in lower urinary tract symptoms (LUTS) with alpha‐1 blockers. Methods: We retrospectively analyzed 108 patients with BPH who took dutasteride for more than 3 months from October 2009 to October 2011. The patients showed poor improvement in LUTS despite administration of alpha‐1 blockers for more than 3 months; all had an International Prostate Symptom Score (IPSS) of eight or greater. We investigated changes in prostate‐specific antigen and prostate volume and performed uroflowmetry and medical interviews to assess IPSS‐QOL score and BPH impact index (BII). Results: Mean prostate volume was 52.8 ± 22.2 mL, and the mean period of dutasteride administration was 284 ± 118 days. Prostate volume decreased 24.1% from baseline to 6 months after administration. Voiding symptoms and storage symptoms showed improvements with longer administration periods, but only nocturia showed no clear improvement. There was a 0.9‐point decrease in BII after 6 months. There was no statistically significant association between the rate of prostate volume reduction and improvement in voiding and storage symptoms. Conclusion: Additional administration of dutasteride to patients with alpha‐1 blocker‐resistant BPH led to improvements in all voiding and storage symptoms except nocturia, and showed no correlation between the prostate volume reduction rates and improvement in LUTS.     

老年良性前列腺增生症单药治疗无效的危险因素

目的通过分析α-受体阻滞剂治疗老年良性前列腺增生症(BPH)无效的危险因素,明确初诊老年BPH的药物选择。方法回顾研究96例老年BPH患者,其中单用α-受体阻滞剂坦索罗新治疗组42例,与5α-还原酶抑制剂非那雄胺联合治疗组54例,比较两组国际前列腺症状评分(IPSS)、生活质量指数(QOL)、最大尿流速(Qmax)、残余尿量(PVR)、前列腺体积及血清前列腺特异性抗原(PSA)。结果联合用药与单药治疗组比较,前列腺体积、Qmax和IPSS具有统计学差异;多元回归分析显示IPSS(P<0.001)及前列腺体积(P<0.05)与老年BPH单药治疗无效密切相关。结论老年BPH患者单药及联合治疗均能改善病情,对于初诊时具有较高的IPSS评分及严重的前列腺体积增大者应给予药物联合治疗。     

Symptoms Predictive for Efficacy of Naftopidil in Patients with Benign Prostate Hyperplasia

Objectives: To evaluate the lower urinary tract symptoms predicting the efficacy of the α1‐adrenoreceptor (AR) antagonist naftopidil in patients with benign prostate hyperplasia. Methods: The efficacy of naftopidil was examined on the basis of changes in the international prostate symptom score (IPSS). All patients received naftopidil (50 mg/day) for 12 weeks. We defined a “responder” as a patient whose total IPSS improved by five or more points and assessed the lower urinary tract symptoms predicting the efficacy of treatment by performing multivariate and probit analyses. Results: Among 132 patients whose data could be analyzed, the efficacy rate was 50.8%. All IPSS items except the urgency score were significantly higher in the responders than the non‐responders before treatment, and all IPSS items were lower in the responders after treatment. In the responder group, significant improvements were observed in the total IPSS score, quality of life (QOL) index, maximum flow rate (Q_max), residual urine volume, and all IPSS items after treatment. In contrast, in the non‐responder group, no parameter except the QOL index improved significantly. The probit analysis demonstrated that the score for weak stream (≥3) or nocturia (≥4) in the IPSS were factors predicting an effective response to naftopidil treatment. Conclusions: Weak stream and/or nocturia are the key symptoms that predict the efficacy of naftopidil treatment in patients with benign prostatic hyperplasia. Those with a score of ≥3 for weak stream or of ≥4 for nocturia are expected to achieve a good response in the subjective symptoms with administration of naftopidil.     

超选择前列腺动脉栓塞联合经尿道前列腺切除术治疗体积>80 mL良性前列腺增生的临床疗效

目的比较超选择前列腺动脉栓塞(PAE)+经尿道前列腺切除术(TURP)与单纯TURP方案治疗前列腺体积>80 mL良性前列腺增生的疗效及安全性。方法回顾性分析我院2016年1月至2019年1月收治的84例体积>80 mL良性前列腺增生病人的临床资料,其中行单纯TURP治疗者44例为对照组,行超选择PAE+TURP治疗者40例为观察组。比较2组手术时间、切除病变组织重量和速率、膀胱持续冲洗时间、尿管留置时间、手术前后国际前列腺症状评分(IPSS)、生活质量(QOL)评分、最大尿流率(Qmax)、残余尿量(PVR)及术后并发症发生率。结果观察组手术时间、膀胱持续冲洗时间及尿管留置时间均显著少于对照组(P<0.05),切除病变组织重量和速率均显著高于对照组(P<0.05)。2组术后IPSS评分、QOL评分、Qmax及PVR水平差异均无统计学意义(P>0.05);观察组术后并发症发生率显著低于对照组(P<0.05)。结论对于体积>80 mL良性前列腺增生病人,超选择PAE+TURP方案较单纯TURP方案能够有效缩短手术时间,提高组织切除效率,加快术后康复进程,缓解临床症状,改善膀胱功能和生活质量,并有助于降低术后并发症发生风险。     

Impact of Androgen Deprivation Therapy on Volume Reduction and Lower Urinary Tract Symptoms in Patients with Prostate Cancer

Objective

To evaluate the impact of androgen deprivation therapy (ADT ) on prostate volume, lower urinary tract symptoms (LUTS ), and LUTS ‐related quality of life (QOL ) in patients with prostate cancer.

Methods

Patients with prostate cancer (PCa ) were treated with goserelin and bicalutamide for 24 weeks. Changes in the total prostate volume (TPV ), International Prostate Symptom Score (IPSS ), and QOL score for urinary symptoms were assessed every 12 weeks. Of the 42 patients enrolled, 8 patients withdrew and 2 were excluded, so 32 patients were analyzed.

Results

The median age, PSA levels, and TPV were 77.5 years, 22.0 ng/mL, and 29.5 cm³, respectively. TPV showed a significant decrease from baseline in weeks 12 and 24, with the mean percent decreases being ?37.5 ± 4.25 and ?7.5 ± 3.84%, respectively. The IPSS decreased from baseline to weeks 12 and 24 (from 11.7 ± 1.6 to 9.3 ± 1.0 and 9.3 ± 1.0; P = 0.15 and 0.2, respectively). The IPSS voiding score showed a significant decrease from baseline to weeks 12 and 24 whereas the IPSS storage score did not. In patients with moderate to severe LUTS , the IPSS and the QOL score showed a significant decrease in weeks 12 and 24. In patients with mild LUTS , nocturia increased significantly from baseline and there was approximately one additional episode of nocturia at 24 weeks.

Conclusions

In this study, we observed that ADT significantly reduced TPV and improved LUTS in patients with PCa and moderate to severe LUTS , but increased nocturia in patients with mild LUTS .

     

Who Would Benefit from Solifenacin Add‐On Therapy to Tamsulosin for Overactive Bladder Symptoms Associated with Benign Prostatic Hyperplasia?

Objectives: We evaluated the types of patient factors that influence the efficacy and safety of solifenacin add‐on therapy to tamsulosin in men with overactive bladder (OAB) associated with benign prostatic hyperplasia (BPH). Methods: A total of 130 BPH patients with persistent OAB symptoms despite undergoing alpha1‐adrenagic antagonist monotherapy were enrolled in this study. Their OAB symptoms persisted after monotherapy consisting of tamsulosin 0.2 mg once daily for more than 8 weeks, followed by subsequent solifenacin 5 mg once daily. The patient backgrounds were assessed, as were the changes in their International Prostate Symptom score (IPSS), Quality of Life (QOL) index, and Overactive Bladder Symptom Score (OABSS) before and 8 weeks after the administration of solifenacin. Results: Total IPSS, QOL index, and OABSS improved significantly following solifenacin administration. Multivariate analyses revealed prostate volume was the only predictor that contributed to the improvement of total IPSS. In patients with prostate volume <30 mL, the improvement in total IPSS (?3.5) was superior to that for prostate volume >30 mL (?0.5; P = 0.002). The data also demonstrated that diabetes mellitus was an independent factor preventing OABSS improvement. In patients with diabetes mellitus, OABSS was not sufficiently improved (?0.6) compared to patients without diabetes (?2.1; P < 0.001). Conclusion: Solifenacin add‐on therapy to tamsulosin showed efficacy and good tolerability in BPH patients with OAB symptoms. The findings also indicated that patients with a relatively small prostate and without diabetes mellitus would receive more benefit from this therapy.     

120W半导体激光治疗良性前列腺增生的疗效分析

目的 探讨应用120W半导体激光治疗良性前列腺增生（BPH）的疗效和安全性。方法 选择年龄＞51岁、膀胱出口梗阻症状明显的57例BPH患者,应用120W半导体激光治疗。统计分析前列腺体积、手术时间及术前术后国际前列腺症状评分（IPSS）、最大尿流率（Qmax）及残余尿（PVR）的变化。结果 所有患者手术均获得成功,手术时间为（52.6±19.6）min。术前IPSS 15～32（24.7±4.4）分,术后下降到2～6（3.5±1.2）分;术前Qmax 0～12（6.7±3.4）ml/s,术后提高到（24.1±4.9）ml/s;术前PVR（77.2±45.7）ml,术后下降到（5.1±7.7）ml,差异有统计学意义。无死亡、输血、尿失禁、二次手术等病例。结论 120W半导体激光治疗BPH安全有效,但费用较高。     

Correlations among Lower Urinary Tract Symptoms,Bother, and Quality of Life in Patients with Benign Prostatic Hyperplasia and Associated Fluctuations with Tamsulosin Administration

Objectives: To estimate correlations among lower urinary tract symptoms (LUTS), bother, and quality of life (QOL) and assess fluctuations in these parameters after α1‐blocker administration in patients with benign prostatic hyperplasia (BPH). Methods: Untreated BPH patients with international prostate symptom scores (IPSS) ≥ 8 and IPSS‐QOL scores ≥ 2 were administered tamsulosin at 0.2 mg/day for 4 weeks in a prospective multicenter study. We subsequently estimated the IPSS, bother score for each IPSS item, BPH impact index (BII), and IPSS‐QOL score before and 4 weeks after tamsulosin administration. We also analyzed the LUTS that might strongly influence QOL by using a path analysis model. Results: Analyzable data were obtained from 198 of the 257 patients enrolled. The IPSS were highest for LUTS such as slow stream, followed by increased daytime frequency and nocturia. The bother score was highest for slow stream, followed by nocturia. We observed dissociations between IPSS and bother scores for both urgency and nocturia. After tamsulosin administration, total and individual IPSS, total and individual bother scores, total and individual BII scores, and IPSS‐QOL score demonstrated significant improvements. Path analysis showed that physical discomfort and bothersomeness were BII items that strongly influenced QOL. Furthermore, feeling of incomplete emptying, urgency, and slow stream were LUTS that strongly influenced QOL. Conclusion: Tamsulosin administration improved patient QOL by possible mechanisms via improvement in subjective symptoms and bother. The LUTS that strongly influenced QOL comprised feeling of incomplete emptying, urgency, and slow stream.     

Prospective Randomized Comparison of Monopolar TURP,Bipolar TURP and Photoselective Vaporization of the Prostate in Patients with Benign Prostatic Obstruction: 36 Months Outcome

Objectives

To assess durability of efficacy of monopolar transurethral resection of the prostate (TURP), bipolar TURP, and photoselective vaporization of the prostate (PVP) using 120W Green light laser at 36 months follow up.

Method

The 186 patients who presented with benign prostatic obstruction and planned for surgery were randomized into three groups: Group A ‐ monopolar TURP; group B ‐ bipolar TURP; and group C ‐ PVP. International Prostate Symptom Score (IPSS), International Index of Erectile Function‐5 (IIEF‐5) score, quality of life (QoL) score, maximum flow rate (Qmax), prostate volume and postvoid residual urine (PVRU) were analyzed up to 36 months follow up.

Results

The improvement observed in the mean IPSS, QoL score, Qmax, prostate volume and PVRU at 12‐month was sustained till 36 months follow up. However, the mean IIEF‐5 score did not show improvement in any group. Few complications noted in second and third year of follow up compared to first year follow up. The results of subgroups analysis did not reveal any significant finding, different from group analysis, for efficacy parameters.

Conclusion

Monopolar TURP, Bipolar TURP and PVP provides durable and comparable efficacy at 36 months follow up in patients with prostate size <80 mL.     

Randomized Controlled Trial to Treat Benign Prostatic Hyperplasia with Overactive Bladder Using an Alpha‐blocker Combined with Anticholinergics

Objectives: TAABO was a randomized, controlled trial to evaluate the efficacy and safety of combination therapy of tamsulosin (TAM) with propiverine (PROP) in men with both benign prostatic hyperplasia and overactive bladder. Methods: It enrolled men 50 years or older who had an international prostate symptom score (IPSS) of 8 or higher, an urgency item score of 1 or higher, and a quality of life (QOL) score of 2 or higher. After 8 weeks of TAM 0.2 mg/day, patients who met the inclusion criteria (8 micturitions per 24 h and 1 urgency per 24 h, evaluated by bladder diary) and were eligible for 12‐weeks of continued Treatment II. Five hundred and fifteen patients were enrolled. Thereafter, 214 patients were assigned randomly to receive either TAM alone (n = 67), TAM plus PROP 10 mg (n = 72), or TAM plus PROP 20 mg (n = 75) in Treatment II. The primary efficacy end point was a change in micturitions per 24 h documented in the bladder diary. The change from baseline in urgency episodes per 24 h, IPSS, IPSS/QOL subscore, urinary flow rate and postvoid residual volume were assessed as secondary efficacy measures. Results: A total of 141 men (47 TAM, 49 TAM plus PROP 10 mg, and 45 TAM plus PROP 20 mg patients) were assessed by week 12. Compared with the TAM, TAM plus PROP 10 mg patients experienced significantly fewer micturitions (P = 0.0261), urgencies (P = 0.0093) per 24 h, lower IPSS storage (P = 0.0465), and IPSS urgency (P = 0.0252) subscores. Conclusions: These results suggest that combining TAM and 10 mg of PROP for 12 weeks provides added benefit for men with both benign prostatic hyperplasia and overactive bladder.     

Early Efficacy of an α1 Adrenoceptor Antagonist,Naftopidil, against Lower Urinary Tract Symptoms Suggestive of Benign Prostatic Hyperplasia

Objectives: The present study investigated the early efficacy of naftopidil against lower urinary tract symptoms (LUTS) suggestive of benign prostatic hyperplasia (BPH). Methods: Subjects comprised patients with LUTS suggestive of BPH who were followed prospectively for 8 weeks. Inclusion criteria were: (i) international prostate symptom score (IPSS) ≥8; (ii) no previous treatment for BPH; and (iii) eligibility for naftopidil monotherapy. IPSS and quality of life index were evaluated, and uroflowmetry and residual urine volume were determined optionally. In the previous study, patients who demonstrated a decrease in total American Urological Association symptom score of 25% or more from baseline were considered responders. The ratio of onset of efficacy of naftopidil was calculated by the ratio of the number of responder in each group with the starting dose. Results: Naftopidil efficacy was analyzed for 243 patients. Significant improvement of IPSS was achieved within 1–3 days after medication. Starting dosage and average dosage were identified as factors associated with the period until onset of naftopidil efficacy. Onset of efficacy was significantly quicker with a starting dosage of 50 mg/day as compared with 25 mg/day (P = 0.0047). However, ratios of onset of efficacy with starting dosages of 25, 50 and 75 mg/day were 77.9, 76.7 and 85.7%, respectively, showing no significant difference between groups (P = 0.7463). Duration to onset of efficacy with naftopidil dosage ≥50 mg/day was 11.2 days, significantly early compared to dosage <50 mg/day. Incidence of adverse effect was 3.8%. Conclusion: Naftopidil showed early effects against LUTS suggestive of BPH within a few days.     

生活质量评价在良性前列腺增生症手术治疗后果评价中的应用

目的评价生活质量指标在两种经典前列腺摘除术即开放手术(OP)和经尿道电切术(TURP)的医疗后果评价中的应用。方法采取病例对照研究方法,按照年龄及术前症状评分作为匹配因素选取80例(40组)病例,测量术前、术后3个月、术后9个月患者的生活质量得分及相关指标,比较各时间点两组手术方案对患者生活质量的影响。结果术后两组患者生活质量得分均有不同程度提高,其中以疾病维度和满意度维度最为明显,OP生活质量提高优于TURP组。生活质量得分的变化与临床指标的变化具有相关性,相关系数为0.436~0.909。结论手术治疗可提高患者生活质量,生活质量指标可作为医疗后果评价指标之一。     

Effect of Discontinuation of Tamsulosin in Korean Men with Benign Prostatic Hyperplasia Taking Tamsulosin and Dutasteride: An Open‐Label,Prospective, Randomized Pilot Study

Objective: This study was conducted to examine the effect of discontinuing tamsulosin in patients with benign prostatic hyperplasia who had been receiving combination therapy with tamsulosin and dutasteride. Methods: The study sample consisted of 108 men with benign prostatic hyperplasia and lower urinary tract symptoms who visited our urology clinics between April 2008 and December 2010. All were assessed using the International Prostate Symptom Score (IPSS). The patients had IPSS of 8–19 and prostate volumes ≥25 mL by transrectal ultrasonography. They were put on tamsulosin and dutasteride, and the efficacy of this regimen was assessed every 12 weeks. After 48 weeks, patients were divided at random into a group continuing to take the same drug combination (group 1) and a group taking only dutasteride 0.5 mg (group 2). Results: Sixty‐nine of the original 108 patients completed the study, 36 (52%) in group 1 and 33 (48%) in group 2. The mean age of all patients was 67.96 ± 7.88 years and mean prostatic volume was 40.45 ± 12.81 mL. Mean prostate‐specific antigen was 3.31 (0.4–9.9) ng/mL at the outset. The IPSS scores of the two groups at first visit, 48 and 72 weeks were, respectively, 14.69 versus 15.85 (P = 0.322), 12.08 versus 12.85 (P = 0.582) and 10.89 versus 11.06 (P = 0.897.) There was a statistically significant difference between the baseline and 72‐week IPSS scores in both groups (group 1: P < 0.001, group 2: P < 0.001). Conclusion: In patients with moderate IPSS, discontinuing tamsulosin after 48 weeks of combined tamsulosin and dutasteride therapy has no significant effect on outcome.     

Canadian experience with high intensity focused ultrasound for the treatment of BPH

INTRODUCTION: High Intensity Focused Ultrasound (HIFU) ablates benign prostatic tissue in a minimally invasive manner with low morbidity. The safety and effectiveness of treating of benign prostatic hypertrophy (BPH) with HIFU using 3 different protocols are reported. METHODS: Forty six male patients with a mean age of 65 (range 47-84) were treated using the Sonablate HIFU device (Focus Surgery, Indianapolis IN) with 3 different protocols at 3 centres (LDS n=20, PJP n=12, RWC n=14). Baseline and outcome measures included AUA symptom score, peak urinary flow rate (Qmax) and quality of life (QOL) score. Early and long term complications were recorded. RESULTS: At 12 months post-HIFU, patients showed improvements in AUA symptom scores of 35% (LDS), 43% (PJP) and 59% (RWC). Qmax improved by 30% (LDS), 37% (PJP) and 63% (RWC). QOL scores improved by 63% (LDS) and 58% (RWC). Minor complications included hematospermia (13%), mild to moderate hematuria (9%), acute retention (4%), perineal pain (11%) and epididymitis (9%). Recatheterization occurred in up to 16% of patients. Eleven patients in the LDS and PJP series required a transurethral resection of the prostate (TURP) for symptoms of urinary obstruction after HIFU treatment. There were no TURP's following HIFU in the RWC series. CONCLUSIONS: HIFU is safe, produces acceptable complications and effectively relieves BPH symptoms.     

琥珀酸索利那新治疗良性前列腺增生术后膀胱过度活动症的临床疗效观察

目的 探讨琥珀酸索利那新治疗良性前列腺增生(BPH)术后并发膀胱过度活动症(OAB)的临床疗效和安全性.方法 115例接受BPH手术的患者中,治疗组(n=58)术后第4d睡前口服索利那新治疗20 d,对照组(n=57)术后服用莨菪碱片,观察患者在拔出导尿管前后排尿情况,并以尿动力学检查、国际前列腺症状评分(IPSS)和膀胱过度活动症评分(OABSS)评价患者排尿情况.结果 治疗组IPSS评分由28.3分下降到11.3分,OABSS评分由(14.2±1.2)分下降到(2.9±0.7)分(P＜0.01).对照组IPSS评分由27.3分下降到11.8分(P＜0.01),OABSS评分由(14.2±1.6)分下降到(11.3±1.1)分,治疗前后差异无统计学意义(P＞0.05).结论 BPH术后正确地使用索利那新,能缓解膀胱过度活动给患者带来的痛苦症状,有利于患者的术后康复.     

非那雄胺对老年单纯收缩期高血压合并良性前列腺增生患者的疗效及安全性

目的：分析应用非那雄胺对老年单纯收缩期高血压（ISH）合并良性前列腺增生（BPH）患者的疗效及安全性。方法：选择84例2011年6月至2013年5月我院的ISH合并BPH老年患者,依据给药方案不同分为：非那雄胺组（44例）;常规治疗组（40例,行常规治疗不使用非那雄胺）。疗程均为半年,比较两组国际前列腺症状评分（IPSS）、生活质量评分（QOL）,前列腺特异性抗原（PSA）、急性尿潴留发生率、最大尿流率（Qmax）、膀胱残余尿量（PRV）、前列腺体积（PV）以及不良反应发生率。结果：与常规治疗组相比,非那雄胺组的 IPSS 评分[（13.2±2.4）分比（9.4±1.1）分]、PRV [（21.4±4.6）ml比（9.0±2.3）ml]、PV [（36.8±3.8）ml比（29.5±3.0）ml]、PSA [（2.45±0.74）μg/L比（1.26±0.48）μg/L]及急性尿潴留发生率（17.50％比9.09％）显著降低（P＜0.05或＜0.01）,而 Qmax [（10.2±2.4）ml比（13.7±3.8）ml]及 QOL评分[（3.1±1.0）分比（4.7±1.5）分]则显著升高（P＜0.05）。两组各项不良反应发生率无统计学差异（P 均＞0.05）。结论：单纯收缩期高血压合并良性前列腺增生老年患者应用非那雄胺的疗效显著,且不良反应未显著增加。     

Nocturia Potentially Influences Maintenance of Sexual Function in Elderly Men with Benign Prostatic Hyperplasia

Objective: This study examined the relationship between bothersome symptoms of nocturia and erectile function. Methods: Subjects comprised patients with lower urinary tract symptoms (LUTS) suggestive of benign prostatic hyperplasia (BPH). Patients were prospectively followed on treatment with the alpha‐1 blocker naftopidil for 8 weeks. Patient backgrounds and efficacy of naftopidil associated with LUTS and sexual activity were evaluated. Results: The percentage of patients who identified nocturia as the most bothersome symptom was 30.2% (n = 135), representing the highest percentage among International Prostate Symptom Score (IPSS) items. The number of patients with nocturia as the most bothersome symptom plateaued at an IPSS for nocturia of two or three points. In contrast, the number of patients with slow stream as the most bothersome symptom increased with symptom severity according to IPSS for slow stream. Logistic regression analysis on association between nocturia and erectile function confirmed that the odds ratio was 1.41 (P < 0.05). Naftopidil showed excellent efficacy related to male LUTS, but International Index of Erectile Function 5 (IIEF5) total score was almost unchanged. Among patients with nocturia improved by naftopidil, IIEF5 total score was significantly changed in the group with IPSS nocturia score ≤1 as compared to the group with IPSS nocturia score ≥2 per night (P = 0.038). Conclusion: Nocturia the most bothersome symptom correlated with aging. Nocturia could associate erectile dysfunction, and keeping the frequency of nocturia at ≤1 episode might be meaningful for maintaining quality of life in elderly men.     

RevoLix 2微米激光汽化切除治疗前列腺增生症临床研究

目的探讨采用RevoLix 2微米激光手术系统治疗前列腺增生症（BPH）的疗效。方法对116例BPH患者进行了RevoLix 2微米激光汽化切除治疗。结果全部手术均成功,手术时间30-150（60.0±15.0）min,尿管留置2-7（3.0±1.0）d,所有患者均未输血。术后随访3个月,最大尿流率增加（P〈0.05）,残余尿量下降（P〈0.05）,国际前列腺症状评分及生活质量评分均有改善（P均〈0.05）。98例术前有性功能者,术后均保留性功能。无尿失禁发生。结论RevoLix 2微米激光手术系统治疗BPH有效、安全,术中、术后并发症少,其长远疗效还需进一步观察。