Journal of Andrology Free Medline Services
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Kamal, A.
Right arrow Articles by Aboulghar, M. A.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Kamal, A.
Right arrow Articles by Aboulghar, M. A.
Journal of Andrology, Vol. 25, No. 1, January/February 2004
Copyright © American Society of Andrology

Selection of Individual Testicular Tubules From Biopsied Testicular Tissue With a Stereomicroscope Improves Sperm Retrieval Rate1

AHMED KAMAL, IBRAHIM FAHMY, RAGAA T. MANSOUR, AHMED M. ABOU-SETTA, GAMAL I. SEROUR AND MOHAMED A. ABOULGHAR

From The Egyptian IVF-ET Center, Cairo, Egypt.

Correspondence to: Ahmed Kamal, MD, The Egyptian IVF-ET Center, 3B, Street 161, Hadayek El-Maadi, Cairo, 11431, Egypt (e-mail: ivf{at}link.net).


The present study describes a new modification for testicular sperm extraction (TESE) with an intraoperative surgical loop, coupled with stereomicroscopic dissection in the laboratory, to identify sperm-containing tubules. The study included 116 consecutive patients with nonobstructive azoospermia (NOA) undergoing TESE and intracytoplasmic sperm injection. After dissection of testicular tissue under the stereomicroscope, patients were separated into 2 groups according to tubular diameter. In the first group (n = 72), all tubules were of the same diameter. In the second group (n = 44), tubules with variable diameters could be identified. In such cases, 1-2 of the most distended and opaque seminiferous tubules were selected and minced alone, then examined for the presence of spermatozoa. The rest of the testicular tissue suspension was minced and examined separately. In 11 (25%) cases, retrieved spermatozoa were found in the isolated distended tubules only. In 21 (47.7%) cases, spermatozoa were found in both the isolated distended tubules and the rest of the specimen. In 2 cases, spermatozoa were found only in the whole sample, not in the isolated tubules. In the remaining 10 cases, spermatozoa were not found in either the whole sample or the isolated tubules. The sperm recovery rate in the isolated tubules was significantly higher than that of the rest of the specimen (72.7% vs 52%, {chi}2 = 3.93, P < .05), and larger numbers of spermatozoa could be easily retrieved in a shorter period of time. In conclusion, the selection and isolation of the most dilated and opaque seminiferous tubules by using the surgical loop, coupled with laboratory stereoscopic dissection, improves sperm retrieval for men with NOA. It is possible that surgical-loops TESE coupled with stereomicroscope may offer superior sperm retrieval when compared with conventional TESE and may also offer reduced operative time when compared with microdissection TESE.

     Key words: intracytoplasmic sperm injection, testicular sperm extraction, microdissection, spermatozoa, nonobstructive azoospermia






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2004 by The American Society of Andrology.