Yearling Akkaraman ewes (n = 140) were apportioned into two groups and inseminated with fresh semen collected from Suffolk and Dorper rams. Bilateral intrauterine insemination (100 x 106 spermatozoa in 0.25 ml) was performed with the aid of laparoscope. Fixed time insemination was carried out 48-50 h after controlled intravaginal drug release (CIDR) removal with the aid of estrus detection using vasectomized rams. Uterine tone at the time of insemination was scored (1-3), the highest pregnancy rate achieved for ewes with score 3 (67%), followed by 59 and 47% for scores 2 and 1, respectively. General decrease in pregnancy rates were observed with increased duration of stored fresh semen over the insemination period (Fall from 73 to 57% over 120 min storage). However, a slight increase in conception rate was observed at the time of AI with the semen kept in vitro for a longer period (90-120 m) which might be the most appropriate time relative to ovulation.
Results: 80 IUGR and 80 SGA fetuses were enrolled. Gestational age at delivery and birth weight were significantly lower in IUGR group than SGA (p < 0.05). At 30 weeks renal volume, aIMT, aorta diameter and pulsatility index flow (PI) did not differed between the two groups. Umbilical artery (UA) PI was normal but statistically higher (1.07 vs 0.92) in the IUGR group (p < 0.05) as well as middle cerebral artery PI was lower at 36 weeks scan (p < 0.05). Renal volume was lower in the IUGR group (p < 0.05). At follow up IUGR children had lower weight and length. IUGR diastolic pressure (PAD) was higher than controls and there was a positive correlation between fetal intrauterine aIMT and PAD. Conclusions: IUGR fetuses presented a subclinical damage as SGA but with a precocious Doppler alterations and lower renal volumes. At follow up they presented an higher PAD and lower anthropometric measures.
P08.18The volume of the chorion villosum is associated with the location of the umbilical cord in the first trimester M. Nakamura, J. Hasegawa, R. Matsuoka, K. Ichizuka, A. Sekizawa, T. Okai
Showa University School of Medicine, Tokyo, JapanObjectives: To clarify whether villous placental volumes in cases with low cord insertion are smaller than those with normal cord insertion. Methods: A prospective cohort study was conducted to evaluate the association between location of umbilical cord insertion and placental volume at 11 to 13 weeks' gestation. An ultrasound examination was performed to measure the crown-rump length (CRL), the distance between the histological internal cervical os and the cord insertion site, the placental volume and the uterine arterial blood flow. To standardize the distribution of the ultrasonographic measurements, data were transformed by CRL-weighted linear regression. Results: Six hundred fifty-nine subjects were analyzed. Scatter plots showed a slightly positive correlation between the z-scores of the distance from the cord insertion site to the internal cervical os and villous placental volume (r = 0.102, p = 0.009) and a negative correlation between the z-scores of the villous placental volume and the uterine arterial pulsatility index (r = −0.165, p < 0.001) as well as the uterine arterial resistance index (r = −0.187, p < 0.001). Conclusions: The placental volume was likely to be smaller in cases with cord insertion located in the lower uterine segment. Vaginal delivery is regarded as a basic policy of delivery mode, without any obstetrical indications. All neonates were resuscitated immediately after birth by neonatal specialists and received for subsequent managements by pediatric surgeons. Results: For expectant management, spontaneous regression in cyst size was observed in 3 of 7 cases of the macrocystic type (43%) and in all 8 cases of the microcystic type (100%). CAS was performed in 2 cases, while betamethasone therapy was in 3 cases. Regarding cases with antenatal therapy, all of the infants could survive to the time of hospital discharge subsequent to the regression of cyst size. N...
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