ABSTRACT
OBJECTIVE: To review 20 years of experience with sperm storage before vasectomy or before chemotherapy and/or radiation therapy (medical storage), and to evaluate its usefulness. DESIGN: Retrospective data analysis. SETTING: University-affiliated reproductive medicine clinic. PATIENT(S): Two hundred fifty-six men who underwent vasectomy and 258 men who underwent chemotherapy and/or radiation therapy. INTERVENTION(S): Review of patient clinical notes. MAIN OUTCOME MEASURE(S): The subsequent use of cryostored sperm and the number of pregnancies that resulted. RESULT(S): Only 4 of the 256 men who underwent vasectomy returned for treatment, and three pregnancies were achieved. Eighteen of the 258 men who underwent chemotherapy and/or radiation therapy returned for treatment, and six pregnancies were achieved. CONCLUSION(S): Only a small proportion of men (2%) returned to use their cryostored specimens after vasectomy, and pregnancy was achieved in most cases. Seven percent of men returned to use their specimens after chemotherapy and/or radiation therapy, and pregnancy was achieved in only one third of cases.
