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Title: Twin reversed arterial perfusion: fetoscopic laser coagulation of placental anastomoses or the umbilical cord
Authors: Hecher, K ×
Lewi, Liesbeth
Gratacos, E
Huber, A
Ville, Y
Deprest, Jan #
Issue Date: Oct-2006
Series Title: Ultrasound in Obstetrics & Gynecology vol:28 issue:5 pages:688-91
Abstract: OBJECTIVE: To assess the feasibility and outcome of fetoscopic laser coagulation in pregnancies with twin reversed arterial perfusion (TRAP) sequence. METHODS: In a prospective multicenter study, percutaneous fetoscopic laser coagulation of placental anastomoses (n = 18) or the umbilical cord of the acardiac twin (n = 42) was performed in 60 consecutive pregnancies at a median gestational age of 18.3 (range, 14.3-24.7) weeks under local or locoregional anesthesia. RESULTS: Vascular coagulation with arrest of blood flow was achieved in 82% (49/60) of cases by laser alone and in a further 15% (9/60) by laser coagulation in combination with bipolar forceps. The overall survival rate of the pump twin was 80% (48/60). Median gestational age at delivery was 37.4 (range, 23.7-41.4) weeks and the median interval between the procedure and delivery was 18.2 (range, 1.1-25.7) weeks. Median birth weight was 2720 (range, 540-3840) g. Preterm premature rupture of membranes before 34 weeks' gestation occurred in 18% (11/60) at a median of 62 (range, 1-102) days after the procedure. However, only two (3%) women delivered within 28 days of the procedure. CONCLUSIONS: Fetoscopic laser coagulation of placental vascular anastomoses or the umbilical cord of the acardiac twin is an effective treatment of TRAP sequence, with a survival rate of 80%, and 67% of pregnancies with surviving pump twins going beyond 36 weeks' gestation without further complications.
URI: 
ISSN: 0960-7692
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Section Woman - Miscellaneous (-)
Foetal Medicine Section (-)
× corresponding author
# (joint) last author

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