This is a prospective study using patients as their own control to analyze the predictive significance of renospermatic basal reflow on color Doppler ultrasound on sperm concentration, motility, and morphology. A total of 113 men were selected based on the presence of a unilateral left vaticocele. The appropriate exclusion criteria were used. Renospermatic basal reflow was categorized using the classification schema of Sarteschi, which assesses internal spermatic vein size and level of reflow in the supine and standing position with and without Valsalva. All patients underwent sclerotization of the left spermatic vein using either a retrograde or antegrade approach. Semen analyses were obtained preoperatively and 3 months postsclerotization. Eighty-two percent of the patients had an increase in sperm density, 73% had an increase in motility, and 58% had an increase in normal morphology. The higher the grade of basal reflow the more the sperm density increased postsclerotization.
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