PT - JOURNAL ARTICLE AU - Amarin, Zouhair O. AU - Obeidat, Basil R. TI - Patency following vasectomy reversal . Temporal and immunological considerations DP - 2005 Aug 01 TA - Saudi Medical Journal PG - 1208--1211 VI - 26 IP - 8 4099 - http://smj.org.sa/content/26/8/1208.short 4100 - http://smj.org.sa/content/26/8/1208.full SO - Saudi Med J2005 Aug 01; 26 AB - OBJECTIVE: To evaluate the postoperative patency rates of microsurgical vasovasostomy and vasoepididy- mostomy at various vasectomy reversal time intervals, and to assess the implications of anti-sperm antibodies on results.METHODS: Three hundred and eighty-two patients underwent unilateral or bilateral vasectomy reversal between January 1997 and April 2001 at the Health Clinic, Highgate and Manor House Hospitals, London, United Kingdom. Patients were divided into 4 groups according to the time interval between vasectomy and reversal; less than 5 years, 5-10 years, 10-15 years, and more than 15 years. Data collected included patient's age at time of vasectomy reversal, seminal fluid analysis at 3, 6 and 12 months after surgery, and the presence or absence of anti-sperm antibodies before vasectomy reversal.RESULTS: Mean patient age at the time of reversal was 44.6 years. The mean vasectomy reversal time interval was 12.8 years. Overall patency rate of the patients groups was 62.9% with positive sperm in the ejaculate in 85.3% in the less than 5 years group, 75.3% in the 5-10 years group, 50.3% in the 10-15 years group and 26.9% in the more than 15 years group. Anti-sperm antibodies were positive in 31 patients (9.1%), of whom 12 patients (38.7%) were positive for sperm in the ejaculate.CONCLUSION: Microsurgical vasectomy reversal produces satisfactory patency rates to couples that consider reestablishing their fertility even more than 15 years after vasectomy. The presence of anti-sperm antibodies is associated with negative effects on sperm count, motility, and percentage of abnormal forms.