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, 56 (6), 740-744

Radiofrequency Ablation for Selective Reduction in Complex Monochorionic Multiple Pregnancies: A Case Series

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Radiofrequency Ablation for Selective Reduction in Complex Monochorionic Multiple Pregnancies: A Case Series

Hong-Mei Wang et al. Taiwan J Obstet Gynecol.

Abstract

Objective: To determine the safety and efficacy of radiofrequency ablation (RFA) for selective fetal reduction in complex monochorionic multiple pregnancies.

Materials and methods: From July 2011 to January 2015, data on all cases treated with RFA were collected prospectively in our hospital. Indications, procedure details, cause of fetal demise and pregnancy outcomes were analyzed. Sonography and magnetic resonance imaging were performed to detect fetal brain damage. Information regarding development after birth was collected according to the Gesell Development Schedule®.

Results: There were 22 cases of twins (6 presenting with twin-twin transfusion syndrome, 10 with malformations, 4 with selective intrauterine growth restriction, and 2 with twin reversed arterial perfusion sequence); and 11 cases of triplets (9 dichorionictriamniotic, 2 monochorionictriamniotic). All surgeries were completed with one puncture. No maternal complications presented during RFA procedure, and the PPROM rate before 32 w was 9% (3/33). There were 3 cases of intrauterine fetal demise and 4 twin cases where pregnancy was terminated. The fetal survival rate was 77% (17/22) in twins, 91% (20/22) in triplets. Total fetal survival rate was 84% (37/44). The neurodevelopmental follow-up investigations showed no abnormalities in any of the survivors.

Conclusion: RFA for selective fetal reduction in complex monochorionic multiple pregnancies is effective, minimally invasive, and safe.

Keywords: Monochorionic multiple pregnancy; Pregnancy outcome radio frequency ablation; Selective fetal reduction.

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