Majallah-i Dānishgāh-i ̒Ulūm-i Pizishkī-i Bābul (Jul 2000)
The relationship between endometrial thickness on the third day of cycle and the ovulation day
Abstract
Objective: Infertility is a common health problem and its treatment is sometimes complicated by several factors. Endometrium thickness has been suggested as one of important predictor of uterine predisposition for pregnancy. In this study the relationship between the pattern and thickness of endometrium on the third day of menstruation and on the ovulation day in induction of ovulation (IO) cycle was evaluated. Methods: The study was done on 695 IO cycles in the patients referring to the infertility center. The correlation between thickness of endometrium on the third day and ovulation day of the cycle was investigated. Data were analyzed with statistical methods and differences between each point were considered significant at P<0.05. Findings: The pattern, thickness of endometrium and follicular growth were evaluated on the third day and the ovulation day by transvaginal sonography. In this survey the endometrium on the third day of the cycle was suitable in 506 and unsuitable in 186 cases. From 506 cases with suitable endometrium only 50 cases had unsuitable endometrium on ovulation day (9.5%). On the other hand from 189 cases of unsuitable endometrium in 165 cases (87%) the endometrium was unsuitable on ovulation day (P<0.0001). Conclusion: There is a significant relationship between endometrium thickness on the third day of the cycle and the ovulation day. By observing an unsuitable endometrium at the beginning of IO cycle, we had better not being the cycle and postpone it to another cycle in which endometrium has been modified by hormonal therapy.
