RELATION BETWEEN ENDOMETRIAL WAVE-LIKE ACTIVITY AND FECUNDABILITY IN SPONTANEOUS CYCLES

Objective: To determine whether endometrial activity is related to the occurrence of pregnancy in spontaneous menstrual cycles. Design: Pros pective observational ultrasound evaluation of endometrial activity du ring fertility screening cycles. Setting: University hospital-based in fertility clinic. Patient(s): Fifty-nine fertility screening cycles (u ltrasound monitoring of follicle growth and ovulation, postcoital test , semen analysis, midluteal P, Chlamydia antibody determination, and t ubal patency testing) were performed in 47 couples complaining of infe rtility. In 33 couples (37 cycles), no fertility impairing factors wer e found. Endometrial activity was analyzed in these cycles. Interventi on(s): Ultrasound examination was performed transvaginally throughout the cycle. Main Outcome Measure(s): Endometrial activity, wave pattern , pregnancy. Result(s): Nine women conceived within the cycle studied. Conception cycles showed less activity compared with nonconception cy cles. Endometrial wavelike activity increased throughout the follicula r phase and decreased after ovulation in conception and nonconception cycles. Conclusion(s): Endometrial activity is related to fecundabilit y in a spontaneous cycle.