With vasectomy reversal surgery, there are two typical measures of success: patency rate, or return of some moving sperm to the ejaculate after vasectomy reversal, and pregnancy rates. In a recently published report[9] 95% of men with a vasovasostomy had motile sperm in the ejaculate within 1 year after vasectomy reversal. Interestingly, almost 80% of these men achieved sperm motility within 3 months of vasectomy reversal. The case for vasoepididymostomy is different. Fewer men will eventually achieve motile sperm counts and the time to achieve motile sperm counts is longer.
What has also been published is that:
The age of the patient at the time of vasectomy reversal does not appear to matter. Using different age cut-offs, including <35, 36-45, and > 45 years old, no differences in patency rates were detected in a recent vasectomy reversal series.
The patency rates after vasovasostomy appear equivalent when performed in the straight or convoluted segments of the vas deferens[10]
Another issue to consider is the likelihood of vasoepididymostomy at the time of vasectomy reversal, as this technique is generally associated with lower patency and pregnancy rates than vasovasostomy. Web-based, computer models and calculations have been proposed and published that described the chance of needing an vasoepididymostomy at reversal surgery.
What has also been published is that:
The age of the patient at the time of vasectomy reversal does not appear to matter. Using different age cut-offs, including <35, 36-45, and > 45 years old, no differences in patency rates were detected in a recent vasectomy reversal series.
The patency rates after vasovasostomy appear equivalent when performed in the straight or convoluted segments of the vas deferens[10]
Another issue to consider is the likelihood of vasoepididymostomy at the time of vasectomy reversal, as this technique is generally associated with lower patency and pregnancy rates than vasovasostomy. Web-based, computer models and calculations have been proposed and published that described the chance of needing an vasoepididymostomy at reversal surgery.