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Low-dose aspirin does not increase implantation rates in patients undergoing intracytoplasmic sperm injection: a
1Assisted Reproduction Unit, VKV American Hospital of Istanbul, Guzelbahce Sok No. 2, Nisantasi 80200, Istanbul, Turkey.
Purpose:
The aim was to evaluate the effect of aspirin on pregnancy and implantation rates in an unselected group of patients undergoing intracytoplasmic sperm injection (ICSI).
Methods:
Two hundred and seventy-nine patients were randomized to receive 80 mg of aspirin (n = 139) or no treatment (r = 136) starting from the first day of controlled ovarian hyperstimulation.
Results:
Duration of stimulation, gonadotropin consumption, peak estradiol, number of oocytes retrieved, fertilization rate, cleavage rate, and number of embryos transferred were similar in the two groups. Implantation and clinical pregnancy rates were 15.6% and 39.6% versus 15.1% and 43.4% in aspirin treated and untreated groups, respectively (P > 0.05).
Conclusions:
Low-dose aspirin administration does not improve implantation and pregnancy rates in an unselected group of patients undergoing ICSI.