Document Detail

Clinical use of pentoxifylline for activation of immotile testicular sperm before ICSI in patients with azoospermia.
MedLine Citation:
PMID:  16400077     Owner:  NLM     Status:  MEDLINE    
The testicular sperm from biopsy and frozen/thawed tissue are frequently immotile. The purpose of our retrospective study was to assess the effect of short exposure of testicular samples with only immotile sperm to pentoxifylline (PF)-sperm motility stimulator. In 77 of 294 (26.2%) testicular sperm ablation/testicular sperm extraction-intracytoplasmic sperm injection (TESA/TESE-ICSI) cycles in patients with azoospermia, only immotile sperm were found in biopsies even after 2 hours of incubation of tissue in the medium. These 77 cycles were divided into 2 groups. In group 1 (cycles between 1999 and 2001; n = 30), ICSI was performed with untreated immotile sperm. In group 2 (cycles between 2002 and 2004; n = 47), immotile testicular sperm were treated for 20 minutes with pentoxifylline (PF) (1.76 mM) before ICSI. Both groups had the same proportion of ICSI cycles with fresh, frozen/thawed, and aspirated testicular sperm. The overall pregnancy rate of TESA/TESE-ICSI did not vary during the study period. In 45 of 47 (95.7%) testicular samples with total immotility, the sperm started to move 20 minutes after PF treatment. The mean time required for ICSI was shortened in the PF group (30 minutes [minimum 10, maximum 90] vs 120 minutes [minimum 60, maximum 240]) due to easier identification of motile sperm. In comparison with the nontreated group, the PF group had a higher fertilization rate (66% vs 50.9%; P < .005) and mean number of embryos per cycle (4.7 +/- 3.3 vs 2.7 +/- 2.1; P < .01). The clinical pregnancy rate per cycle in PF and non-PF groups was 38.3% and 26.7%, respectively. By using PF in cases of only immotile testicular sperm we can cause movement of testicular sperm, allow easier identification of vital sperm, shorten the procedure, improve fertilization rates, and increase the number of embryos.
Borut Kovacic; Veljko Vlaisavljevic; Milan Reljic
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of andrology     Volume:  27     ISSN:  0196-3635     ISO Abbreviation:  J. Androl.     Publication Date:    2006 Jan-Feb
Date Detail:
Created Date:  2006-01-09     Completed Date:  2006-04-24     Revised Date:  2006-10-27    
Medline Journal Info:
Nlm Unique ID:  8106453     Medline TA:  J Androl     Country:  United States    
Other Details:
Languages:  eng     Pagination:  45-52     Citation Subset:  IM    
Department of Reproductive Medicine and Gynecologic Endocrinology, Maribor Teaching Hospital, Ljubljanska 5, SI-2000 Maribor, Slovenia.
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MeSH Terms
Oligospermia / drug therapy*
Pentoxifylline / pharmacology,  therapeutic use*
Pregnancy Rate
Sperm Injections, Intracytoplasmic*
Sperm Motility / drug effects*
Spermatozoa / drug effects*
Testis / drug effects*,  pathology
Reg. No./Substance:
Comment In:
J Androl. 2006 Jul-Aug;27(4):491   [PMID:  16614323 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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