Comparative study of perinatal outcome of dichorionic and trichorionic iatrogenic triplets.

Objective: The purpose of this study was to compare the perinatal outcome of dichorionic and trichorionic triplets who were conceived by assisted reproductive techniques.

Study Design: In this retrospective study, the maternal, neonatal, and chorionicity data were collected from 106 sets of trichorionic triamniotic and 34 sets of dichorionic triamniotic triplet pregnancies who were conceived by assisted reproductive techniques between January 1986 and December 2000. Perinatal and neonatal data were evaluated in relation to chorionicity and intertriplet birth weight discordance.

Perinatal outcome of spontaneously conceived triplet pregnancies in relation to chorionicity.

Objective: The purpose of this study was to determine the perinatal outcome of spontaneously conceived triplet pregnancies in relation to chorionicity.

Study Design: In this retrospective study, maternal, neonatal, and chorionicity data were collected from 88 sets of triplet pregnancies that were delivered at >20 weeks of gestation from 3 tertiary referral centers in the United Kingdom. The data were collected between January 1986 and December 2000.

Perinatal outcome following amniotic septostomy in chronic TTTS is independent of placental angioarchitecture.

Objectives: To determine whether the vascular anatomy of monochorial placenta influences the success of amniotic septostomy for the treatment of chronic mid-trimester twin-twin transfusion syndrome, we report placental anastomoses and perinatal data of 13 pregnancies treated by amniotic septostomy in combination with amnioreduction (AR). The placental anastomoses were delineated postnatally by perfusion studies. Perinatal outcome was also evaluated in relation to umbilical artery Doppler waveform of the donor twin.