Objective To evaluate the effect of pretreatment with epristeride on decreasing intraoperative bleeding during transurethral resection of prostate (TURP) and to study its mechanism. Methods A total of 60 patients with benign prostatic hyperplasia undergoing TURP were divided into two groups: 30 patients were pretreated with epristeride 5 mg×2 daily for 7 to 11 days before TURP, and 30 patients did not receive any pretreatment. The operations for the two groups of patients were conducted by the same doctors. The operation time, the weight of resected prostatic tissue, and the volume of irrigating fluid were recorded. Blood loss, bleeding index, and bleeding intensity were calculated. Microvessel density (MVD), vascular endothelial growth factors (VEGF), and nitric oxide synthase type III (eNOS) expression were measured by the immunohistochemistry SPmethod in prostatic tissue. Results In the epristeride and control groups, the mean blood loss was 179.51±78.29 ml and 237.95±124.38 ml (Plt;0.05); the mean bleeding index was 7.68±3.94 ml/g and 9.73±3.42 ml/g (Plt;0.05); the mean bleeding intensity was 2.43±1.03 ml/min and 3.30±1.50 ml/min (Plt;0.05); the mean value of MVD was 18.80±5.68 and 23.70±4.91 (Plt;0.05); the mean rank of VEGF was 23.48 and 31.77 (Plt;0.05); and the mean rank of eNOS was 22.36 and 31.14 (Plt;0.05), respectively. Conclusion Pretreatment with epristeride decreases intraoperative bleeding during TURP. The preliminary results suggest that angiogenesis in the prostatic tissue is suppressed.
ObjectivesTo systematically evaluate the efficacy and safety of 1 470 nm laser vaporization vs. transurethral resection of prostate (TURP) for benign prostatic hyperplasia (BPH).MethodsPubMed, EMbase, The Cochrane Library, CBM, CNKI, WanFang Data and VIP databases were electronically searched to collect randomized controlled trials (RCTs) and non-randomized controlled trials (non-RCTs) about the efficacy and safety of 1 470 nm laser vaporization vs. TURP for BPH from inception to October 22nd, 2018. Two reviewers independently screened literature, extracted data and assessed the risk of bias of included studies, then, meta-analysis was performed by using RevMan 5.3 software.ResultsA total of 6 RCTs and 4 non-RCTs were included. The results of meta-analysis showed that: 1 470 nm laser vaporization was superior to TURP in reducing intraoperative bleeding (MD=−103.87, 95%CI −148.08 to −59.65, P<0.000 01), hospital stay (MD=−3.82, 95%CI −4.35 to −3.28, P<0.000 01), postoperative indwelling catheter time (MD=−2.24, 95%CI −3.45 to −1.02, P=0.000 3), postoperative hemoglobin (MD=−1.63, 95%CI −3.14 to −0.12, P=0.03) and rate of secondary hemorrhage (OR=0.13, 95%CI 0.03 to 0.48, P=0.002). There were no significant differences in operative time, bladder irrigation time, transient urinary incontinence and urethral stricture, IPSS Score and Qmax at 3 months after operation between the two groups (P>0.05).ConclusionCurrent evidence shows that 1 470 nm laser vaporization is superior to TURP in reducing intraoperative bleeding and secondary hemorrhage. It may be more suitable for prostate surgery in anticoagulant or coagulative dysfunction patients. Due to limited quality and quantity of the included studies, more high quality studies are required to verify above conclusions.
Objective To objectively evaluate the efficacy and safety of plasmakinetic enucleation for prostate (PKEP) vs plasmakinetic resection for prostate (PKRP) in treating benign prostate hyperplasia (BPH). Methods Such databases as PubMed, Cochrane Central Register of Controlled Trials (CENTRAL), EMbase, the ISI Web of Knowledge databases, VIP, CNKI, CBM and Wanfang were searched from their establishment to March 2011 for collecting the randomized controlled trials (RCTs) about PKEP vs PKRP for the treatment of BPH, and the references of those RCTs were also searched by hand. After study selection, assessment and data extraction conducted by two reviewers independently, meta-analyses were performed by using the RevMan 5.1 software. The level of evidence was assessed by using the GRADE system. Results Eight studies involving 991 patients were included. The results of meta-analyses showed that: a) safety indicator: compared with the PKRP, PKEP had shorter operation time (SMD=1.07, 95%CI 0.19 to 1.94, P=0.02), less intraoperative bleeding (SMD=2.06, 95%CI 1.42 to 2.69, Plt;0.01), much quantity of resectable prostate (SMD= –0.91, 95%CI –1.33 to –0.48, Plt;0.000 1), less intraoperative perforation (RR=4.48, 95%CI 1.43 to 14.02, P=0.01), shorter catheterization time (SMD=1.98, 95%CI 0.39 to 3.57, P=0.01), shorter bladder irrigation time (SMD=3.49, 95%CI 0.51 to 6.47, P=0.02) and shorter hospital stay (SMD=0.89, 95%CI 0.64 to 1.13, Plt;0.01), but there was no significant difference in total postoperative complications (RR=0.82, 95%CI 0.54 to 1.24, P=0.35); and b) efficacy indicator: compared with the PKRP, the International Prostate Symptom Score (IPSS) was lower after 3 months, the Quality Of Life (QOL) was higher after 3 months, and the improvement of residual urine volume (RUV) was better after 6 months; but other efficacy indicators had no significant difference between the two groups (Pgt;0.05). Based on GRADE system, all the evidence was at level C and weak recommendation (2C). Conclusion The current evidence indicates that PKEP is similar to PKRP in the treating effect, but it resects the proliferated prostate more cleanly with shorter operation time, lesser bleeding and more safety than PKRP; for the poor quality of the original studies, a prudent choice is suggested; and more high-quality, large-sample studies are need.
ObjectiveTo systematically review the effectiveness and safety of transurethral ureteroscopy lithotripsy in the treatment of upper ureteral calculi. MethodsWe electronically searched The Cochrane Library (Issue 3, 2013), PubMed (1966 to 2013.8), EMbase (1990 to 2013.8), CNKI (1949 to 2013.9), CBM (1978 to 2013.9), VIP (1989 to 2013.8) and WanFang Data (1990 to 2013.8) for the randomized controlled studies (RCTs) related to retroperitoneoscopy ureterolithotomy versus transurethral ureteroscopy lithotripsy for upper ureteral calculi. Two reviewers independently screened literature, extracted data, and evaluated methodological quality of included studies. Then meta-analysis was performed using RevMan 5.2 software. ResultsA total of 16 RCTs involving 1 410 patients (transurethral ureteroscopy lithotripsy:747 cases; etroperitoneal laparoscopic ureterolithotomy:663 cases) were included. The results of meta-analysis showed that, transurethral ureteroscopy lithotripsy was lower than retroperitoneoscopy ureterolithotomy in success rates of surgery (OR=0.26, 95%CI 0.14 to 0.51), 3-day stone clearance rates (OR=0.06, 95%CI 0.03 to 0.11), and 1-month stone clearance rates (OR=0.21, 95%CI 0.08 to 0.53), while it showed superiority in operation time (MD=-22.35, 95%CI-35.29 to-9.41) and postoperative hospital stay (MD=-1.84, 95%CI-3.44 to-0.24). ConclusionCurrent evidence shows that, in the treatment of upper ureteral calculi, transurethral ureteroscopy lithotripsy causes less operation time and postoperative hospital stay, but it had no advantage in success rates of surgery, 3-day stone clearance rates, and 1-month stone clearance rates.
One-hundred and thirty cases of hymenosis of female urethral orifice with anomalies from May, 1985 through October, 1990 were studied. The patients all received plastic reconstruction of the urethral orifice, and have been followed up for 3 months to 6 years with a cure and improvement rate of 92.1 percent. This anomaly is one of the important causes causing infection of the lower urinary tract. The mechanism of the pathology and the principles of treatment were discussed.
Objective To investigate the histological and keratinous variation of prefabricated urethra in the capsule with micro-mucosa and gelatin sponge compound graft. Methods Five 8-week-old Guizhou miniature pigs (2 females and3 males) weighing 20-25 kg were used. Eight tissue expanders were bilaterally inserted into subcutaneous position on the dorsal thorax of each pig. Forty inserted expanders were randomized into two groups (n=20 per group). For the experimental group, the free buccal mucosa was cut into particles less than 1 mm in diameter, spread onto the gelatin sponge (3 cm × 2 cm) and then transplanted to the capsule; the area expansion ratio of autogenous micro-mucosa was 8 ∶ 1. For the control group, soft tissue expander without mucosa graft was implanted. The pressure in inserted expander was about 40 mm Hg (1 mm Hg=0.133 kPa). Inflation should be stopped when the injected sal ine volume reached 15 mL. The animals were killed 1 and 2 weeks and 1, 2, and 4 months after the implant to receive examination. Macroscope, histology, and immunohistochemistry changes were observed. Results All the animals survived to the end of the experiment and the wounds healed by first intention. There was no obvious degeneration of gelatin sponge, and some of the mucosa survived 1 week after implant. The gelatin sponge was partly absorbed, most of the mucosa survived 2 weeks after implant. Visual examination showed complete epithel ial ization of the entire cavity 1 month after implant. The experimental group at 2 and 4 months were similar to that of at 1 month in gross observations.The neo-mucosa was not found in the control group at different time points after implant. Histology examination revealed that compound implant was mainly infiltrated by inflammatory cells and the micro-mucosa survived well 1 week after implant in the experimental group. The stratified squamous epithel ium presented obvious polarity and the submucous neovascularization was abundant 2 weeks after implant. The compound implant achieved complete epithel ial ization 1 month after implant. The epithel ium degeneration occurred 2 months after implant. The stratified squamous epithel ium presented no abovious polarity 4 months after implant. No neo-mucosa was evident in control group at different time points. The experimental group was positive for the pan-cytokeratin staining at 1, 2 weeks, and 1, 2 months after implant, but negative at 4 months after implant The pan-cytokeratin staining was negative in the control group at different time points. Conclusion The buccal micromucosa and gelatin sponge compound graft can grow well on the expanded capsule 1 month after implant and the epithel ium degeneration is evident 2 months after implant. Environment of implanted mucosa has great influence on epithel ium mucosa.
ObjectiveTo evaluate the effect of postoperative no indwelling urethral catheters in lung operation. MethodsIn this prospective cohort study, we recruited 100 patients who were scheduled for pulmonary lobectomy under general anesthesia in a single institution of Thoracic Surgery Department in West China Hospital between April and December 2014. These patients were divided into two groups including a no indwelled urethral catheter group (NIUC, 50 patients) and an indwelled urethral catheter group (IUC, 50 patients). The clinical effect was compared between the two groups. ResultsThere was no statistical difference in incidence of postoperative urinary retention or urinary tract infection between the two groups (P=0.433, 0.050). However, the comfort degrees(0 degree) of patients in the NICU group was significantly higher than that of the ICU group with a statistical difference (P=0.002). While postoperative hospitalization time in the NICU group (P=0.023) was shorter than that in the ICU group (P=0.004). Prostatic hyperplasia was the high risk factor for the lung postoperative urinary retention (P=0.056). ConclusionPostoperative no indwelling urethral catheters in lung operation has the benefit of improving the comfort degrees of inpatients and increasing the postoperation urinary retention.
Objective To evaluate the clinical effect of balloon dilatation in the treatment of lower urinary tract obstruction in children. Methods Twenty-six boys suffering from lower urinary tract obstruction underwent the balloon dilatation operation. These patients included 23 cases of posterior urethral valves, 2 cases of anterior urethral valves and 1 case of traumatic urinary tract stricture. Their ages ranged from 18 days to 7 years. All the patients were diagnosed by voiding cystourethrogram (VCG). Some of the boys suffered from bilateral hydronephrosis and dilated ureters. Before operation, the patients with urine retention or abnormal renal function should drain urine and correct the disorderof fluid and electrolyte. Balloon dilatation was done after their conditions were improved. During operation, ketamine anaesthesia was used, and 30% diatrizoate melglumine was used as dilatation drug. The balloon catheters which had the length of 4 cm and the diameters of 5，8，10 mm respectively were used for dilating the urethra. After operation, a Foley’s catheter was routinely indwelled. Results During procedure, compression phenomena disappeared in the course of operation. All the patients urinated normally after catheter was removed at 1 week post operatively. 6 cases received ureteral reimplantation to prevent vesioureteral reflux after 1 to 3 months. 25patients were followed up from 1 to 13 years and all patients had normal micturition and the bilateral hydronephrosis were improved. Conclusion Balloon dilatation is a safe, effective and feasible therapy for lower urinary tract obstruction in children.
ObjectivesTo evaluate the effects of Q-syte separating film needleless closed transfusion connector in flushing chamber of three-cavity urethral catheter.MethodsTo retrospectively analyze the patients who underwent transurethral resection of bladder tumor for non muscle-invasive bladder cancer from January 2015 to July 2016 in Zhongnan Hospital of Wuhan University. After terminating the continuous bladder irrigation, the observed group used Q-syte separating film needleless closed transfusion connector to seal the flushing chamber of three-cavity urethral catheter, and control group used conditional approach to connect drainage bag. The degree of comfort and satisfaction of patients, urinary tract infection, time of stopping bladder irrigation and bladder perfusion time between two groups were assessed.ResultsA total of 88 patients were included involving 63 (72%) males and 25 (28%) females with a mean age of 60.2±4.7 years. There were no significant differences between two groups in age, gender, BMI, and complications (P>0.05). Compared to control group, case group had higher level of comfort degree (mild discomfort: 86.4% vs. 25.0%, P<0.001; moderate discomfort: 13.6% vs. 52.3%, P<0.001; severe discomfort: 0.0% vs. 22.7%, P=0.001), satisfaction degree (97.9±2.1 vs. 84.5±3.9, P<0.001), and lower rates of urinary tract infection (11.4% vs. 29.5%, P=0.034). In addition, the case group spent shorter time in terminating bladder irrigation (50.48±1.78 vs. 207.74±5.41, P<0.001) and bladder perfusion (141.47±3.25 vs. 205.35±5.17, P<0.001). All differences were statistical significance.ConclusionsApplication of Q-syte separating film needleless closed transfusion connector for sealing flushing chamber of three-cavity urethral catheter after continuous bladder irrigation could promote the degree of comfort and satisfaction of patients, and decrease the rate of urinary tract infection, as well as the working efficiency of health care professionals.