Pregnancy after intentional cryopreservation of percutaneous sperm aspiration specimens and intracytoplasmic sperm injection. A report of two cases
Hwang, J.L.; Lin, Y.H.; Huang, S.C.; Hsieh, M.L.; Hsieh, B.C.; Tsai, Y.L.
Journal of Reproductive Medicine 46(3): 249-252
2001
ISSN/ISBN: 0024-7758 PMID: 11304867 Document Number: 529116
BACKGROUND: Microsurgical epididymal sperm aspiration (MESA) and percutaneous epididymal sperm aspiration (PESA) are two methods of obtaining spermatozoa from patients with irreparable obstructive azoospermia. Intentionally using frozen-thawed spermatozoa obtained from MESA had been reported to be successful. With minimal invasiveness, intentionally cryopreserved PESA specimens and intracytoplasmic sperm injection (ICSI) were carried out in two cases. CASES: Two cases of irreparable obstructive azoospermia received PESA, and the spermatozoa were cryopreserved intentionally. Successful ICSI was performed later, utilizing frozen-thawed spermatozoa. CONCLUSION: PESA and ICSI are promising methods for these patients. The major advantages are minimal invasiveness and flexibility for further treatment.