Outcomes following selective fetoscopic laser ablation for twin-to-twin transfusion syndrome: a single-centre experience

Loh, Michelle; Bhatia, Anju; Tan, Keng Leong; Thia, E.; Yeo, G. S. H.

doi:10.11622/smedj.2019107

smedj

2020

DOI: 10.11622/smedj.2019107

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Outcomes following selective fetoscopic laser ablation for twin-to-twin transfusion syndrome: a single-centre experience

Michelle Loh

Anju Bhatia

Keng Leong Tan

et al.

Abstract: Online first papers have undergone full scientific review and copyediting, but have not been typeset or proofread. To cite this article, use the DOIs number provided. Mandatory typesetting and proofreading will commence with regular print and online publication of the online first papers of the SMJ.

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2024

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Impact of cannula diameter on pregnancy outcomes after minimally invasive fetal laser surgery in the treatment of twin‐to‐twin transfusion syndrome: A systematic review and meta‐analysis

van der Schot,

van Steenis,

Sikkel

et al. 2024

Acta Obstet Gynecol Scand

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IntroductionPreterm prelabor rupture of membranes (PPROM) remains a major complication of fetal laser surgery in the treatment of twin‐to‐twin transfusion syndrome (TTTS). The aim of the study was to determine the impact of cannula size on pregnancy outcomes, with a particular focus on PPROM.Material and methodsThe protocol was developed and registered in the PROSPERO database under registration number CRD42022333630. The PubMed, Web of Science, and EMBASE databases were searched electronically on May 18, 2022, and updated on March 2, 2023, utilizing a combination of the relevant MeSH terms, keywords, and word variants for “TTTS” and “laser”. Randomized controlled trials, prospective and retrospective cohorts, case–control studies, and case reports/series with more than five participants were considered eligible for inclusion. Studies reporting the cannula diameter and PPROM rate after laser surgery in the treatment of monochorionic pregnancies affected by TTTS between 16‐ and 26 weeks' gestation were included. Data was extracted independently, and when appropriate, a random‐effects meta‐analysis was undertaken to calculate pooled estimates and their confidence intervals. Heterogeneity in the effect estimates of the individual studies was calculated using the I2 statistic. The primary outcome was PPROM rate. Secondary outcomes were survival rate, preterm birth, and incomplete surgery. The quality of the included studies was assessed using a modified quality in prognosis study tool.ResultsWe included a total of 22 studies, consisting of 3426 patients. Only one study was scored as low quality, seven as moderate quality, and the remaining 14 as high quality. The mean PPROM rate after laser surgery treating TTTS was 22.9%, ranging from 11.6% for 9 French (Fr) to 54.0% for 12 Fr. Subsequent meta‐regression for the clinically relevant PPROM rate before 34 weeks of gestation, showed increased PPROM rates for increased cannula size (p‐value 0.01).ConclusionsThis systematic review confirmed PPROM as a frequent complication of fetal laser surgery, with a mean PPROM rate of 22.9%. A larger cannula diameter relates to a significant higher PPROM risk for PPROM before 34 weeks gestation. Hence, the ideal balance between optimal visualization requiring larger port diameters and shorter operation time and more complete procedures that benefit from larger diameters is crucial to reduce iatrogenic PPROM rates.

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Impact of cannula diameter on pregnancy outcomes after minimally invasive fetal laser surgery in the treatment of twin‐to‐twin transfusion syndrome: A systematic review and meta‐analysis

van der Schot,

van Steenis,

Sikkel

et al. 2024

Acta Obstet Gynecol Scand

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show abstract

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Outcomes following selective fetoscopic laser ablation for twin-to-twin transfusion syndrome: a single-centre experience

Cited by 1 publication

References 42 publications

Impact of cannula diameter on pregnancy outcomes after minimally invasive fetal laser surgery in the treatment of twin‐to‐twin transfusion syndrome: A systematic review and meta‐analysis

Impact of cannula diameter on pregnancy outcomes after minimally invasive fetal laser surgery in the treatment of twin‐to‐twin transfusion syndrome: A systematic review and meta‐analysis

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