Sperm morphology as diagnosed by strict criteria: probing the impact of teratozoospermia on fertilization rate and pregnancy outcome in a large in vitro fertilization …
DR Grow, S Oehninger, HJ Seltman, JP Toner… - Fertility and sterility, 1994 - Elsevier
Objective To investigate the predictive value of sperm morphology assessed by strict criteria
on IVF outcome. Design Retrospective analysis of all IVF cycles (January 1987 to December
1992). Main Outcome Measures All patients were assigned to one of three groups based on
sperm morphology: P-pattern (< 4% normal forms), G-pattern (4% to 14% normal forms), and
N-pattern (> 14% normal forms). Morphology pattern was related to other semen
characteristics and IVF outcome. Results Despite corrective measures at oocyte …
on IVF outcome. Design Retrospective analysis of all IVF cycles (January 1987 to December
1992). Main Outcome Measures All patients were assigned to one of three groups based on
sperm morphology: P-pattern (< 4% normal forms), G-pattern (4% to 14% normal forms), and
N-pattern (> 14% normal forms). Morphology pattern was related to other semen
characteristics and IVF outcome. Results Despite corrective measures at oocyte …
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