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Predictive value of abnormal sperm morphology in in vitro fertilization.

Authors
Type
Published Article
Journal
Fertility and Sterility
0015-0282
Publisher
Elsevier
Publication Date
Volume
49
Issue
1
Pages
112–117
Identifiers
PMID: 3335257
Source
Medline
License
Unknown

Abstract

In patients with acceptable sperm count and motility, two patterns of abnormal morphology, judged with strict criteria, were identified and described. Patients with less than 4% normal forms and less than 30% morphology index (summation of normal and slightly amorphous forms) had a fertilization rate of 7.6% of the oocytes (P pattern, poor prognosis). Patients with normal morphology between 4 and 14% had a significantly better fertilization rate of 63.9% of the oocytes (P less than 0.0001). Cases with greater than 14% normal forms fertilized within the normal range for the laboratory. By evaluating sperm morphology with the proposed strict criteria, its predictive value in in vitro fertilization is enhanced.

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