[Perinatal outcomes of twin pregnancies obtained after in vitro fertilization: comparison with twin pregnancies obtained spontaneous or after ovarian stimulation]

Infertility is defined as one year of unprotected coitus without conception. By artificial reproductive technology, rate of multiple pregnancy is increased to 35%. This leads to an increase in cesarean section rate, prematurity, perinatal mortality. This study is designed as retrospective descriptive- analytic. All of the pregnant women with twin gestation coming to Taleghani, Mahdieh, and Imam Khomeini hospital during the years 1996-2003 were included in the study sequentially, regardless of age or parity. Excluding criteria was past history of preterm delivery abortion, hypertension and previous cesarean section. For the data analysis, we used the Z test. We compared 76 spontaneous twin pregnancies with 74 twin pregnancies after IVF and 76 twin pregnancies after ovulation induction, with respect to these parameters: hypertension, birth weight, gestational age, mode of delivery, abortion, premature rupture of membrane, preterm delivery, APGAR score, pernatal mortality. We did not find any significant difference in having hypertension gestational age at birth, premature rupture of membrane, abortion, preterm delivery, APGAR score, still birth and neonatal death between three groups. Mean maternal age in spontaneous group was 26.5 years old, in IVF group 34 years old and in induction group 30 years old. There were significant numbers of primiparous women in the IVF and in induction group. The cesarean rate was significantly higher in IVF group [Z >1.96] and the vaginal delivery rate was significantly higher in spontaneous twin pregnancy [Z > 1.96]. There is no difference in perinatal outcomes in 3 groups

[Role of mother's preference for the type of delivery on the outcome of delivery]

The rate of cesarean section in our society is increasing every day. This research was done to study the effects of mother's personal preference about the mode of delivery on the outcome of delivery in pregnant women who recieved perinatal care in Taleghani and Mahdieh Hospitals. This cross-sectional study was done on 160 women pregnant with there first babies. Mothers' characteristics: First pregnancy, no systemic disease, no indication for cesarean section before labor pain, no history of infertility, non-smokers. All subjects were interviewed about their preferences regarding the method of delivery. Ninety-four women, [58.8%], preferred to have a normal vaginal delivery, and 66, [41.2%], chose cesarean section. From the first group, 65 [61.3%] cases and from the second group, 41 [38.7%] cases came back to the same hospital for delivery. The rate of cesarean section in the first group was 12.3% and in the second group was 34.1% [P<0.01]. There is a positive association between mother's wish about the method of delivery and its outcome