Objective To introduce the application of the scrotal flap on reconstructing partial urethra defect. Methods From March 1998 to August 2004, 31 patients with urethra defect were treated with scrotal flap. Their ages ranged from6 to 34 years. Thirty-one patients included 8 cases of congenital deformity of urethra and 23 cases of complication of urethral fistula, urethral stenosis and phallus bend after hypospadias repair. The flap widths were 1. 2. cm in child and 2.3. cm in adult. The flap lengthwas 1. -2.0 times as much as the width. Nine cases were classified as penile type, 10 cases as penoscrotal type, 7 cases as scrotal type(3 children in association withcleft scrotum) and -cases as perrineal type because of pseudohermaphroditism.Urethroplasty was given by scrotal fascia vascular net flap to reconstruct urethra defect. Results All the flaps survived, and the incision healed well. Twenty four cases achieved healing by first intention and 7 cases by second intention. And fistula occurred and healed after 2 weeks in 1 case. 27 cases were followed up 14 years, 2 cases had slight chordee, the others were satisfactivly. Conclusion Urethroplasty with scrotal fascia vascular net flap is an ideal method for the partial defect urethra.
Objective To resolve the tough problem of how to observe the growing cells in an opaque vector. Methods The urethral epithelial cells from a young male New Zealand rabbit were inoculated, and were primarily cultured in vitro and subcultured for 3 passages. Then, the urethralepithelial cells were cultured in the collagen chitosan complex for 3, 7, 14 and 21 days. The cells were dyed with 6-carboxyfluorescein diacetateacetoxymethyl ester and propidium iodine, respectively. Then, Interactive Laser Cytometer was used to detect the growing cells. Results The urethral epithelial cells grew and proliferated very well in the collagen chitosan complex vector. After the urethral epithelial cells grew in the collagen-chitosan complex vector for 3 and 7 days, the fluorescent density amount of the surviving cells were(1.09±0.13)×10.8 and (2.04±0.13)×10.8, respectively. However, after 14and 21 days, the fluorescent density amount of the surviving cells was (0.55± 0.09)×10.8 and (0.47±0.03)×108, respectively. There was a significant difference when compared with the amount of the surviving cells at 3 and 7 days（P＜0.05）.Conclusion Using Interactive Laser Cytometer for measurement of the green and red fluorescent densities of different waves, the activity of the cultured urethral epithelial cells in vitro can be rapidlymeasured with the in situ quantitation method. This method solves a difficult problem of observing the growing cells in an opaque vector. The dynamic growing state of the engineering tissues can be observed.
Objective To investigate the effect of ventral urethroplasty for postoperative anastomotic stricture in patients with hypospadias. Methods From August 2000 to December 2005, 20 patients with anastomotic stricture after hypospadias repair were treated with ventral urethroplasty. The age ranged from 2 to 27 years with an average of 6.4 years. All patients showed dysuria after operation. Main clinical manifestation included dysuria and acraturesis. Interruption of urinary stream occurred in 17 cases; of them, 3 cases had urinary stasis and 4cases had frequent micturition, urgent micturition and pain in urination. Urethrography and cystourethrography showed 0.5-1.0 cm stricture with proximal dilat ion of urethra in 16 cases and obvious diverticularization in 9 cases. Urine routine examination showed that white blood cell was ++ to ++++ in 16 cases and pus cell was ± to++ in 13 cases.Results Twenty cases were followed up 2 months to 4 years (mean 2.3 years). All the cases achieved good results in urination with normosthenuria and normal force of urinary stream. No recurrent stricture, urethrocutaneous fistula, or penile curvature occurred. The cosmesis was satisfactory, and the results of urine routine examination was normal. Conclusion Ventral urethroplasty for postoperative anastomotic stricture inpatients with hypospadias is a simple and effective procedure.
Objective To provide the anatomic basis for the posterior urethral repair via the perineal approach. Methods The anatomicconstructions andtheir relationships of the perineal approach from skin to the membranous and prostate apical urethra were observed and some related data were measured in 12 adult male specimens by microanatomy, and the procedures of urethral repair via the perineal approach were carried out in 3 fresh male specimens. Results All the blood vessels and nerves, which supplied the scrotum, the perineum, and bulbourethra, passed lateral-medially. The cavernous nerves coursed posterolaterally from the bottom to the apex of the prostate, pierced the urogenital diaphragm and passed laterally to themembranous urethra in a status of gridding, whose width was (12.11±2.32) mm.Conclusion The structures of the perineum and around the posterior urethra are complicated. The strategy for diminishing the damages to them is that all structures must be dissected strictly in the midline. Confining the dissections strictly to the range of 5 mm from the membranous urethra and resecting the apical prostatic tissues anterolaterally could avoid impairments of the cavernous nerves.
Objective To search for a new method to repair distal urethral stricture resulting from urethroplasty of hypospadias. Methods FromFebruary 2000 toMarch 2004, 16 patients with distal urethral stricture were treated by use of cutting stricture urethra and their distal urethra were reconstructed with phallic flap. Results All operations were successful without complication of flap necrosis. After 7 days of operation, the patients had free micturition and thick stream of urine. Eleven patients were followed 2 months to 4 years, the satisfactory result was obtained. Conclusion It is a simple and good method to reconstruct the distal urethra by superimposing the phallic flap on the cut stricture urethra after urethroplasty of hypospadias.
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.
【摘要】 目的 探讨经尿道等离子双极电切术（PKRP）治疗前列腺增生的安全性及临床疗效。 方法 2009年2-12月，采用PKRP治疗前列腺增生患者76例，记录手术时间、手术疗效及术后并发症。 结果 患者手术时间35～130 min，平均55 min。术中失血60～150 mL，均未输血。手术切除前列腺质量18～72 g。无直肠和膀胱穿孔，无电切综合征（TURS）及闭孔神经反射发生，无一例发生真性尿失禁，无死亡。术后随访2～6个月，IPSS评分平均为9分，最大尿流率平均为16.7 mL/s。 结论 PKRP是治疗前列腺增生的理想方法之一。【Abstract】 Objective To evaluate the efficacy of transurethral plasmakinetic resection of the prostate (PKRP) on benign prostatic hyperplasia. Methods A total of 76 patients with benign prostatic hyperplasia from February to December 2009 were treated with PKRP. The operative duration, therapeutic effect and postoperative complications were observed and recorded. Results The operative duration ranged from 35 to 130 minutes (average 55 minutes).The intraoperative blood loss was 60-150 mL, and no one needed transfusion.The prostate gland excised weight was 18-72 g. There were no intestinal and bladder perforation, no transurethral resection syndrome (TURS) or obturator nerve reflex occurs, and no urinary incontinence or death.IPSS score was nine and the maximal average uroflow was 16.7 mL/s during the 2-6 month follow-up. Conclusion PKRP is one of the ideal methods treating benign prostatic hyperplasia, especially for high-risk patients with benign prostatic hyperplasia.
Objective To introduce an effective method to repair failed hypospadias. Methods From October 1998 to October 2002, 8 cases of failed penoscrotal junction hypospadias were repaired by repeated use of scrotal septum vesicular pedicle island flap to reconstruct urethra. The patientsranged in ages from 4 to 8 years. Results All flaps in 8 patients survived, the reconstructed urethra was big and smooth. After a follow up of 6-12 months, the satisfactory appearance and normal urinary stream were obtained. No complications were found. Conclusion This method is an effective operative procedure to repair failed hypospadias and is a simple and convenient operation.
目的 探讨前列腺体积＞60 mL的前列腺增生症患者的手术安全性，提高部分合并尿道狭窄前列腺增生症患者的手术实施率。 方法 2009年3月－2010年3月，行耻骨上膀胱穿刺引流下经尿道前列腺电切术（TURP）治疗前列腺增生58例。年龄54～93岁，平均72岁，病程8个月～12年，平均7.2年；前列腺体积35～128 mL，平均78 mL；国际前列腺症状评分24～35分，平均30.2分 ；最大尿流率1.2～4.8 mL/s，平均1.8 mL/s；残余尿量84～210 mL，平均160 mL。术前无尿潴留28例。 结果 58例顺利完成手术，其中2例伴包膜穿孔，9例前尿道狭窄者通过去外鞘电切镜完成手术。所有患者切除前列腺组织体积18～86 mL，平均58 mL；术中冲洗液为5%葡萄糖液，用量18 600～42 500 mL，平均23 500 mL；手术时间45～185 min，平均70 min。术后病理检查均示良性前列腺增生，术后住院时间3～8 d，平均5 d。术后患者最大尿流率为18～46 mL/s，平均32 mL/s。 结论 耻骨上膀胱穿刺引流能降低膀胱内压，减少水、糖分吸收，增加手术安全性，提高了部分合并前尿道狭窄的前列腺增生患者的手术几率。