TUBAL SELECTION FOR GAMETE INTRAFALLOPIAN TRANSFER

When both fallopian tubes appear normal, tubal selection for GIFT is l eft, to the surgeon's discretion. We were interested to learn whether pregnancy rates were influenced by the choice of tubal transfer in rel ation to ovarian dominance. Ovarian dominance was defined sonographica lly as the ovary containing the greater number of follicles having a m ean diameter > 16 mm. In a retrospective analysis of 144 GIFT procedur es, the clinical pregnancy rate for transfers performed to the tube ip silateral to the dominant ovary was significantly higher than that of transfers made to the contralateral tube (0.414 versus 0.228, P = 0.04 2). This difference could not be attributed to either patient characte ristics or cycle performance. We suggest that gamete transfer be perfo rmed ipsilateral to the side with the greater number of dominant folli cles to optimize pregnancy rates.