Abstract
To evaluate the effect of internal spermatic vein (ISV) embolization on levels of serum testosterone and free testosterone and on spermatogenesis. The files of 83 infertile men treated for varicocele were reviewed for changes in serum testosterone, free testosterone and spermatogenesis after ISV embolization. Mean serum testosterone concentration rose after embolization by 43%, from 12.07 +/- 6.07 nmol/l to 17.22 +/- 8.43 nmol/l (P<0.001). Mean serum free testosterone concentration rose by 72%, from 5.93 +/- 2.44 nmol/l to 10.21 +/- 7.69 nmol/l (P<0.001). Mean sperm concentration increased from 7.49 +/- 1.73 x 10(6)/ml to 18.14 +/- 2.36 x 10(6)/ml (P<0.001); mean sperm motility increased from 21.74 +/- 2.47 to 34.47 +/- 2.27% (P<0.001); and mean sperm morphology increased from 6.63 +/- 1.07 to 13.08 +/- 1.44% (P<0.001). ISV embolization apparently induces an increase in both serum testosterone and free testosterone concentrations and in sperm parameters in infertile patient with varicocele, regardless of the size of the varicocele.
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