Peak systolic velocity, not vein size, predicts abnormal sperm count in adolescent Tanner V patients with primary left varicocele

Key Points

• Abnormal sperm count is primarily predicted by peak systolic velocity, not vein size, in adolescents.
• The study found that elevated systolic velocity strongly correlates with lower sperm counts in Tanner V patients.
• Analysis of patient records focused on those with primary left varicocele and assessed their sperm metrics.
• These findings may guide future assessments of adolescent male fertility, emphasizing the role of blood flow over anatomy.