Wen-Wei Wang

Sun Yat-Sen University, Shengcheng, Guangdong, China

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Publications (7)6.62 Total impact

  • [Show abstract] [Hide abstract]
    ABSTRACT: This study is to evaluate the effectiveness of a modified single-armed suture technique for microsurgical vasoepididymostomy (VE) in patients with epididymal obstructive azoospermia. From September 2011 to December 2011, microsurgical two-suture longitudinal intussusception VEs were performed using our modified single-armed suture technique in 17 men with epididymal obstructive azoospermia at our hospital. Two of these patients underwent repeated VEs after previous failed VEs, and one patient underwent unilateral VE because of an occlusion of the left abdominal vas deferens. The presence of sperm in the semen sample at 3 months postoperation was used as the preliminary endpoint of this study. Each patient provided at least one semen sample at the 3-month time point, and the patency was assessed by the reappearance of sperm (>10(4) ml(-1)) in the semen. The mean operative time for the modified technique was 219 min. Patency was noted in 10 men (58.8%), including one patient who underwent repeated VE. The patient who underwent unilateral anastomosis manifested no sperm postoperatively in his semen. Sperm granulomas were not detected in this cohort. The results of this study demonstrate that our modified technique for microsurgical longitudinal intussusception VE is effective. We believe that it is a practical alternative that may reduce operation time and obviate the suture crossing.Asian Journal of Andrology advance online publication, 8 October 2012; doi:10.1038/aja.2012.100.
    Asian Journal of Andrology 10/2012; 15(1). DOI:10.1038/aja.2012.100 · 2.60 Impact Factor
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    ABSTRACT: To analyze the perioperative complications of radical cystectomy using a standardized reporting methodology. The clinical data of 233 cases of radical cystectomy from January 1996 to December 2008 were reviewed. Two hundred male patients and 33 female patients were included. The mean age was 58.9 years old. All complications within 30 days of surgery were recorded and classified using a 5-grade modification of the Clavien system. Overall mean operative time was 339 (170 - 610) minutes, and mean blood loss was 818 (range 100 to 3500) ml. Of the 233 subjects at least 1 postoperative complication developed in 84 (36.1%), including five cases of intraoperative complications. According to the modified Clavien system, 27 patients (11.6%) had grade 1, 38(16.3%) had grade 2, 16(6.9%) had grade 3, and 3(1.7%) had grade 4 complications. The most frequent complication was gastrointestinal complications (15.9%), then the incision-related complications (15.0%) and lung infections (4.7%). An association between hypoproteinemia and any complication was found after adjusting for confounding variables (OR = 2.963, 95%CI: 1.451 - 6.050, P = 0.003), and American society of anesthesia score (ASA score) was significantly associated with any major complication (OR = 2.520, 95%CI: 1.003 - 6.332, P = 0.049). Radical cystectomy is associated with a high perioperative comlications, using the modification of the Clavien system has allowed us to stratify complications during radical cystectomy. Hypoproteinemia is independently associated with any complication in these patients and ASA score was significantly associated with any major complication.
    Zhonghua wai ke za zhi [Chinese journal of surgery] 10/2012; 50(10):902-4.
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    ABSTRACT: To evaluate the effect of transurethral resection of ejaculatory duct (TURED) for treatment of ejaculatory duct obstruction (EDO). The clinical data of 60 cases of EDO from Oct. 2004 to Oct. 2010 were analyzed. The diagnostic criteria included semen analyses, fructose in seminal plasma, transrectal ultrasonography (TRUS), and vasography if necessary. All the patients were treated by TURED. Post-operative semen assay, postoperative patency rate and postoperative impregnation rate were followed. Semen analyses in the majority of cases showed the typical characteristics of EDO, azoospermia, low semen volume (average 1.10 ± 0.76 mL), low pH (average 6.5 ± 1.4), absent or low semen fructose (average 5.86 ± 2.19 μmol/one ejaculation). TRUS showed pure dilation of both ejaculatory ducts in 15 cases, prostatic cyst in 6, pure dilated seminal vesicles on both sides in 10, unilateral dilated seminal vesicle in 4, dilation of both ejaculatory duct and seminal vesicles in 10, dilated seminal vesicles with prostatic cyst in 5, unilateral dilated seminal vesicle and contralateral aplasia of seminal vesicle in 2, dilated seminal vesicles with dilation and calcifications of both ejaculatory ducts in 3. The remaining 5 had unilateral dilated ejaculatory duct and seminal vesicle with contralateral aplasia of seminal vesicle. In all the cases followed up more than 6 to 78 months after TURED, 51 patients (85.0%) had improved semen parameters and 16 patients' wives (26.7%) had pregnancies. TURED may be the simple, minimally invasive and effective method for the treatment of EDO.
    Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences 08/2011; 43(4):559-61.
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    ABSTRACT: To present our experience of hand-assisted laparoscopic radical cystectomy (HALRC) and compare it with open radical cystectomy (ORC). During the period between May 2004 and November 2007, 31 patients underwent HALRC and 39 patients underwent ORC for bladder cancer. The patient demographics, intraoperative variables and postoperative outcomes were compared retrospectively. There was no statistically significant difference with regard to age, sex, body mass index, and urinary diversion in the 2 groups. In the HALRC group, 20 patients had stage pT2 or less, 7 had pT3 disease, and 4 had stage pT4 disease. In the ORC group, 29 patients had stage pT2 or less, 5 had pT3 disease, and 5 had stage pT4 disease. All margins in both groups were negative. The HALRC group had decreased blood loss (250.9 vs. 812.8 ml, p < 0.001) and a lower rate of transfusion (9.7 vs. 76.9%, p < 0.001), but similar mean operative time (365.7 vs. 362.6 min, p = 0.862). Time to liquid diet was significantly less in the HALRC group versus the ORC group (4.3 vs. 6.3 days, p < 0.001). The median number of lymph nodes were similar between the HALRC and ORC groups (14 vs. 15, p = 0.377). Six patients developed perioperative complications in the HALRC group and 12 patients had complications in the ORC group (19.4 vs. 30.8%, p = 0.278). Late complications occurred in 3 patients (2 parastomal hernias and 1 ureteroenteral stricture) in the HALRC group. Compared with ORC, HALRC patients had decreased blood loss, less transfusion requirements, and quicker intestinal recovery. Long-term follow-up in a larger cohort of patients is needed to assess the long-term oncological and functional outcomes.
    Urologia Internationalis 02/2010; 84(1):28-33. DOI:10.1159/000273462 · 1.43 Impact Factor
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    ABSTRACT: To evaluate the diagnosis and surgical treatment of obstructive azoospermia. We analyzed the clinical data of 56 cases of obstructive azoospermia, 43 of them with ejaculatory duct obstruction (EDO), and the other 13 suspected of epididymal obstruction. The diagnostic methods included semen analyses, measurement of fructose and neutral alpha-glucosidase in the seminal plasma, transrectal ultrasonography (TRUS), and vasography when necessary. The 43 patients with EDO were treated by transurethral resection of the ejaculatory duct (TURED), and 11 of the 13 cases of suspected epididymal obstruction were confirmed by scrotal exploration and underwent either bilateral or unilateral vasoepididymostomy. The patients were followed up for 3 -51 months for postoperative semen quality and impregnation. Of the 43 azoospermia patients with EDO treated by TURED, 36 (83.7%) showed improved semen parameters and 11 (25.6%) achieved pregnancies. Among the 11 cases of azoospermia with confirmed epididymal obstruction treated by vasoepididymostomy, 6 (54.5%) had sperm in the semen assay and 3 (27.3%) achieved pregnancies. Semen analyses, measurement of fructose and neutral alpha-glucosidase in the seminal plasma, TRUS and vasography are important diagnostic methods for obstructive azoospermia. TURED is effective for azoospermia with EDO, while vasoepididymostomy is preferable for the treatment of azoospermia with epididymal obstruction.
    Zhonghua nan ke xue = National journal of andrology 01/2010; 16(1):48-51.
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    ABSTRACT: The aim of this study was to compare the long-term postoperative status of hypospadiac patients by analysing their sexual psychology, sexual behaviour, sexual function and influencing factors. A total of 130 hypospadiac patients hospitalized between January 1988 and December 2007 were followed up with questionnaires using Zung's Self-rating Depression Scale (SDS), Self-rating Anxiety Scale (SAS), a self-designed sexual function questionnaire and a 5-item version of the International Index of Erectile Function (IIEF-5). The surveys served to evaluate the effects of hypospadias type, number of operations and surgical procedures on sexual psychology, sexual behaviour and sexual function. The control group consisted of 50 healthy adults. The postoperative SDS / SAS scores and occurrences of depression/anxiety in hypospadiac patients were significantly higher than those of normal controls (P < 0.001). Patients with proximal hypospadias and multiple procedures differed from those with distal hypospadias and a single procedure in all parameters of sexual psychology (P < 0.05). The average penile lengths and circumferences of hypospadiac patients under either erect or flaccid conditions were significantly shorter than those of normal controls (P < 0.001). A similar difference existed between patients with distal and proximal hypospadias (P < 0.01). There was no significant difference in any parameter of sexual function between patients with different numbers of operations and surgical procedures. Hypospadiac patients were clearly impaired in sexual psychology and penile development. The severity of hypospadias and number of operations were key factors that influenced the sexual psychology of patients. This finding indicated the importance of long-term follow-up and psychological counselling for hypospadiac patients postoperatively.
    Asian Journal of Andrology 04/2009; 11(4):417-22. DOI:10.1038/aja.2008.60 · 2.60 Impact Factor
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    ABSTRACT: To investigate the characteristics of diagnosis and treatment of iatrogenic ejaculatory duct obstruction following prostatic hyperthermia. Retrospective analyses were made of the clinical data of 3 cases of ejaculatory duct obstruction following prostatic hyperthermia. The 3 cases were diagnosed as urethrostenosis and deformity of the posterior urethra by transurethral ultrasound and semen analysis. And all the 3 patients had undergone prostatic hyperthermia for prostatitis. Transurethral resection of the ejaculatory duct (TURED) was performed to remove the obstruction and the postoperative semen analysis showed both semen volume and sperm count to be normal. Urethra microwave thermotherapy, urethra radiofrequency, or per urethra rheophore ablation can be adopted in the treatment of protatitis, but should be strictly indicated and cautiously selected lest secondary iatrogenic ejaculatory duct obstruction should result. For the treatment of this obstruction, TURED is the first choice.
    Zhonghua nan ke xue = National journal of andrology 11/2006; 12(10):906-9.

Publication Stats

17 Citations
6.62 Total Impact Points


  • 2009-2012
    • Sun Yat-Sen University
      • The First Affiliated Hospital
      Shengcheng, Guangdong, China
  • 2006-2010
    • Sun Yat-Sen University of Medical Sciences
      • Department of Urology
      Shengcheng, Guangdong, China