American journal of obstetrics and gynecology
-
Am. J. Obstet. Gynecol. · Mar 2005
Comparative StudyFetal RhD genotyping by maternal serum analysis: a two-year experience.
The purpose of this study was to determine the accuracy of the none-invasive prenatal determination of polymerase chain reaction (PCR)-based fetal RhD genotyping. ⋯ The present report demonstrates that a reliable fetal RHD genotype determination can be achieved with 100% accuracy. It is therefore possible to consider that such an assay could be systematically proposed to all RhD-negative pregnant women in order to more effectively utilize RhD prophylaxis.
-
Am. J. Obstet. Gynecol. · Mar 2005
Catastrophizing labor pain compromises later maternity adjustments.
The purpose of this study was to evaluate the impact of labor pain intensity and labor pain catastrophizing on maternity blues and postpartum social functioning. ⋯ Labor pain catastrophizing rather than labor pain intensity predicts postpartum maternal adjustments.
-
Am. J. Obstet. Gynecol. · Feb 2005
Randomized Controlled Trial Comparative Study Clinical TrialA randomized comparison of oral mifepristone to intravenous oxytocin for labor induction in women with prelabor rupture of membranes beyond 36 weeks' gestation.
This study was undertaken to compare the use of oral mifepristone with intravenous oxytocin for labor induction in women with prelabor rupture of membranes (PROM) at 36 weeks' or greater gestational age. ⋯ Oral mifepristone administration 18 hours before oxytocin infusion did not improve labor stimulation in women with PROM near term, and was associated with more adverse fetal outcomes.
-
Am. J. Obstet. Gynecol. · Jan 2005
Aberrant right subclavian artery as a new cardiac sign in second- and third-trimester fetuses with Down syndrome.
The right subclavian artery arises normally as the first vessel from the brachiocephalic artery of the aortic arch. An aberrant right subclavian artery arises as a separate vessel from the aortic isthmus and crosses to the right, behind the trachea. This variant is present in <1% of the normal population; however, in subjects with Down syndrome, an incidence between 19% and 36% was reported. The purpose of this study was to assess the possibility of the detection of an aberrant right subclavian artery in fetuses with Down syndrome. ⋯ This preliminary study suggests that the in utero identification of an aberrant right subclavian artery may be a new ultrasound marker to be found in fetuses with Down syndrome. Further studies are required to assess the incidence of aberrant right subclavian artery in normal fetuses.
-
Am. J. Obstet. Gynecol. · Jan 2005
Comparative StudyComparing McRoberts' and Rubin's maneuvers for initial management of shoulder dystocia: an objective evaluation.
This study was undertaken to objectively compare delivery traction force, fetal neck rotation, and brachial plexus elongation after 3 different initial shoulder dystocia maneuvers: McRoberts', anterior Rubin's, and posterior Rubin's. ⋯ Rubin's maneuvers were found to require less traction force than McRoberts': 16.2 +/- 2.1 lbs for McRoberts' compared with 8.8 +/- 2.2 lbs and 6.5 +/- 1.8 lbs for posterior and anterior Rubin's respectively (P < .0001). Brachial plexus extension was significantly lower after anterior Rubin's maneuver compared with McRoberts' or posterior Rubin's maneuvers. CONCLUSION In a laboratory model of initial maneuvers for shoulder dystocia, anterior Rubin's maneuver requires the least traction for delivery and produces the least amount of brachial plexus tension. Further study is needed to validate these results clinically.