4.7 Article

Outcome of Monochorionic Diamniotic Twins with Twin Reversed Arterial Perfusion Sequence: Interstitial Laser versus Endoscopic Cord Occlusion

Journal

JOURNAL OF CLINICAL MEDICINE
Volume 12, Issue 20, Pages -

Publisher

MDPI
DOI: 10.3390/jcm12206593

Keywords

twin reversed arterial perfusion sequence; TRAP pregnancy; monochorionic twins; prenatal interventions

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This study compared the short- and long-term outcomes of monochorionic twin pregnancies with the Twin Reversed Arterial Perfusion Sequence (TRAP) using two different techniques: interstitial fetal laser (IFL) and endoscopic cord occlusion (CO). The study found that IFL was associated with a higher risk of early pregnancy loss, but lower risks of preterm birth and neurological disabilities in survivors, while CO showed the opposite results.
Twin reversed arterial perfusion sequence (TRAP) is a rare complication of monochorionic twins (MC). This study aimed to describe and compare the short- and long-term outcomes of MC pregnancies with the TRAP sequence treated with two different techniques: interstitial fetal laser (IFL) (n = 22) versus endoscopic cord occlusion (CO) (n = 24). The study population included 46 MC pregnancies with TRAP. Pregnancy loss within 2 weeks after the procedure occurred in 27% of cases (6/22) in the group treated with IFL and in 8% of cases (2/24) in the group treated with CO. The survival rate of the pump twin was 73% (16/22) in the IFL group and 83% (20/24) in the group treated with CO. The median gestational age at birth was 38 weeks in the group treated with IFL and 35 weeks in the group treated with CO. The rate of preterm birth before 34 weeks was 12.5% (2/16) in the group treated with IFL and 32% (7/22) in the group treated with CO. In the group treated with IFL, there were no cases of neurological disabilities reported by the parents compared to three cases in the CO group. IFL is associated with a higher risk of early pregnancy loss; however, if the pregnancy progresses, it is associated with lower risks of preterm birth and neurological disabilities in the survivors.

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