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Title: Procedure-related complications of open vs endoscopic fetal surgery for treatment of spina bifida in an era of intrauterine myelomeningocele repair: systematic review and meta-analysis
Authors: Araujo Junior, E. [UNIFESP]
Eggink, A. J.
Van den Dobbelsteen, J.
Martins, W. P.
Oepkes, D.
Keywords: fetoscopy
open fetal surgery
perinatal complications
spina bifida
systematic review
Issue Date: 2016
Publisher: Wiley
Citation: Ultrasound In Obstetrics & Gynecology. Hoboken, v. 48, n. 2, p. 151-U42, 2016.
Abstract: Objective To assess and compare the rate of procedure-related complications after intrauterine treatment of spina bifida by endoscopic surgery and by open fetal surgery. Methods Systematic literature searches in PubMed and SCOPUS databases were performed on 20 September 2015 to identify randomized controlled trials and observational studies on treatment of human spina bifida by endoscopic or open fetal surgery techniques. Only studies with >= 10 cases that were published in or after 2000 were included in the meta-analysis in order to reduce the risk of bias. Primary outcomes (complete dehiscence, focal dehiscence and/or markedly thin hysterotomy scar
preterm delivery<34 weeks
mean gestational age at delivery) and secondary outcomes (oligohydramnios, prelabor rupture of membranes, placental abruption, chorioamnionitis and perinatal death) were assessed for both techniques. Precision of the estimated proportions was evaluated with 95% CIs. Inconsistency was assessed using the I-2 statistic. Results The search identified 1080 records that were examined based on title and abstract, of which 28 full-text articles were examined completely for eligibility. Nine records were excluded because cases were also described in other studies, leaving 19 records for analysis. When comparing endoscopic vs open fetal surgery, the rate of complete dehiscence, focal dehiscence and/or markedly thin hysterotomy scar was, respectively, 1% (95% CI, 0-4%) vs 26% (95% CI, 12-42%)
preterm delivery <34 weeks was 80% (95% CI, 41-100%) vs 45% (95% CI, 38-53%)
oligohydramnios was 39% (95% CI, 9-75%) vs 14% (95% CI, 7-24%)
prelabor rupture of membranes was 67% (95% CI, 12-100%) vs 38% (95% CI, 26-50%)
and perinatal death was 14% (95% CI, 1-38%) vs 5% (95% CI, 3-8%). Conclusion Open fetal surgery for spina bifida seems to show lower rates of procedure-related complications than does endoscopic surgery, but the rate of hysterotomy scar complications is high after open surgery. Because of the low quality of evidence, the conclusions should be interpreted with caution. Copyright (C) 2015 ISUOG. Published by John Wiley & Sons Ltd.
ISSN: 0960-7692
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