Prospective study of effect of body weight on in vitro fertilization outcome in reproductive age group

Abstract

Background: Various prognostic factors in assisted reproduction procedures have been described and analyzed which includes woman’s age, cause of infertility, ovarian response and uterine receptivity, the semen quality, and the body mass index (BMI). Optimal BMI is required for an optimal response. There is controversy among various reports, which is partly caused by the varying focus of investigators and differences in study designs, which led us to examine the relationship between BMI, in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) outcome in our unit. Objective: To study impact of BMI on IVF outcome prospectively. Materials and methods: It is a prospective study over a period of 1 year in the age group 25 to 35 years attending the IVF clinic was conducted at a tertiary infertility center in Bangalore, India between November 2010 and October 2011. Results: There is a close association of increased BMl in particular when BMl is > 30 kg/m2 and the reduced outcomes of IVF/ ICSI treatment in the form of decreased clinical pregnancy and higher early pregnancy loss. Furthermore, increased BMl is related to higher dosage and duration of gonadotropins requirement increased risk of cancellation and fewer collected oocytes. Conclusion: Obesity is associated with an increased risk of early pregnancy loss. Also need of high dose of gonadotropin, less number of collected oocytes is observed. Implantation rate, pregnancy rate and miscarriage rate was comparable but live births are high in normal weight and overweight as compared to extremes of BMI. So will be appropriate to recommend life style modifications including weight loss to achieve an appropriate BMI prior to IVF.