scholarly journals OC18.01: Does preoperative fetal weight discordancy affect perinatal outcome following laser surgery for Twin-twin transfusion syndrome? Evidence from a retrospective cohort study

2018 ◽  
Vol 52 ◽  
pp. 42-42
Author(s):  
M. Shapira ◽  
K. Zloto ◽  
N. Duvdevani ◽  
B. Weisz ◽  
S. Lipitz ◽  
...  
Keyword(s):  
Cohort Study ◽  
Retrospective Cohort Study ◽  
Perinatal Outcome ◽  
Laser Surgery ◽  
Retrospective Cohort ◽  
Fetal Weight

scholarly journals Reliability of sonographic fetal weight estimation in triplet pregnancies: a retrospective cohort study

2018 ◽  
Vol 297 (6) ◽  
pp. 1441-1447 ◽  
Author(s):  
Sophie Pils ◽  
Stephanie Springer ◽  
Rudolf Seemann ◽  
Verena Wehrmann ◽  
Christof Worda ◽  
...  
Keyword(s):  
Cohort Study ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Fetal Weight ◽  
Weight Estimation ◽  
Fetal Weight Estimation

160: Perinatal outcome in crown rump length discordant twin pregnancies, a retrospective cohort study

2014 ◽  
Vol 210 (1) ◽  
pp. S92-S93
Author(s):  
Larisa van Leijden ◽  
Brenda Kazemier ◽  
Maja Kuilman ◽  
Eric Smith ◽  
Ben Willem Mol ◽  
...  
Keyword(s):  
Cohort Study ◽  
Retrospective Cohort Study ◽  
Perinatal Outcome ◽  
Retrospective Cohort ◽  
Crown Rump Length ◽  
Twin Pregnancies ◽  
Discordant Twin

scholarly journals Effects of hospital delivery during off-hours on perinatal outcome in several subgroups: a retrospective cohort study

2012 ◽  
Vol 12 (1) ◽  
Author(s):  
Ronald Gijsen ◽  
Chantal WPM Hukkelhoven ◽  
C Maarten A Schipper ◽  
Uzor C Ogbu ◽  
Mieneke de Bruin-Kooistra ◽  
...  
Keyword(s):  
Cohort Study ◽  
Retrospective Cohort Study ◽  
Perinatal Outcome ◽  
Retrospective Cohort ◽  
Hospital Delivery

scholarly journals Accuracy of Prenatal Ultrasound in Detecting Growth Abnormalities in Triplets: A Retrospective Cohort Study

2017 ◽  
Vol 20 (1) ◽  
pp. 84-89 ◽  
Author(s):  
Cameron Sklar ◽  
Maryna Yaskina ◽  
Sue Ross ◽  
Kentia Naud
Keyword(s):  
Cohort Study ◽  
Fetal Growth ◽  
Retrospective Cohort Study ◽  
Predictive Value ◽  
Retrospective Cohort ◽  
Prenatal Ultrasound ◽  
Growth Restriction ◽  
Fetal Weight ◽  
Growth Abnormalities ◽  
Estimated Fetal Weight

Significant management decisions in triplet pregnancies are made based mainly on ultrasound measurements of fetal growth, although there is a paucity of data examining the accuracy of fetal weight measurements in these gestations. To evaluate accuracy of prenatal ultrasound to diagnose growth abnormalities (intrauterine growth restriction, severe growth discordance) in triplet pregnancies, a retrospective cohort study of 78 triplet pregnancies (234 fetuses) delivered at a single tertiary hospital from January 2004 to May 2015 was performed. Growth percentiles from the last ultrasound were derived from estimated fetal weight using Hadlock's formula for each triplet. Growth discordance was calculated for each triplet set using the formula {(estimated fetal weight largest triplet - estimated fetal weight smallest)/estimated fetal weight largest}. These estimations were compared to birth weights. Sensitivity of ultrasound to predict ≥1 growth restricted fetus in a triplet set was 55.6% [95% CI 35.3, 74.5]; specificity was 100% [95% CI 93.0, 100]; positive predictive value (PPV) 100% [95% CI 74.7, 100]; negative predictive value (NPV) 81.0% [95% CI 73.2, 85.7%]. Sensitivity of ultrasound to detect fetal growth discordance >25% in a triplet set was 80.0% [95% CI 44.4, 97.5], specificity 94.1% [95% CI 85.6, 98.4]; PPV 66.7% [95% CI 42.4, 84.5]; NPV 97.0% [95% CI 90.2, 99.1]. Prenatal ultrasound currently remains the most reliable tool to screen for growth anomalies in triplet pregnancies; however, it appears to have less than ideal sensitivity, missing a number of cases of intra-uterine growth restriction and significant growth discordance.

scholarly journals Perinatal outcome of monochorionic and dichorionic twins after spontaneous and assisted conception: a retrospective cohort study

2018 ◽  
Vol 97 (6) ◽  
pp. 717-726 ◽  
Author(s):  
Karien E.A. Hack ◽  
Marijn E.M.S. Vereycken ◽  
Helen L. Torrance ◽  
Corine Koopman-Esseboom ◽  
Jan B. Derks
Keyword(s):  
Cohort Study ◽  
Retrospective Cohort Study ◽  
Perinatal Outcome ◽  
Retrospective Cohort ◽  
Assisted Conception

scholarly journals OP30.01: Perinatal outcome in crown-rump length discordant twin pregnancies, a retrospective cohort study

2014 ◽  
Vol 44 (S1) ◽  
pp. 173-174
Author(s):  
L.V. Leijden ◽  
B.M. Kazemier ◽  
M. Kuilman ◽  
E. Smith ◽  
B.J. Mol ◽  
...  
Keyword(s):  
Cohort Study ◽  
Retrospective Cohort Study ◽  
Perinatal Outcome ◽  
Retrospective Cohort ◽  
Crown Rump Length ◽  
Twin Pregnancies ◽  
Discordant Twin
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