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Updated: Feb 18, 2026

Transuterine Fetal Tracheal Occlusion Model in Mice
Published on: February 5, 2021
Early versus late surgical correction in congenital diaphragmatic hernia
Alexandra Yunes1, Matías Luco2, Juan Carlos Pattillo3
1Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile; Proyecto Epistemonikos, Santiago, Chile.
Introduction:
The timing of surgical repair in patients with congenital diaphragmatic hernia has been a controversial topic over the years, and there is still no agreement as to whether immediate repair or late surgery with preoperative stabilization is preferable.
Methods:
To answer this question we used Epistemonikos, the largest database of systematic reviews in health, which is maintained by screening multiple information sources, including MEDLINE, EMBASE, Cochrane, among others. We extracted data from the systematic reviews, reanalyzed data of primary studies, conducted a meta-analysis and generated a summary of findings table using the GRADE approach.
Results And Conclusions:
We identified four systematic reviews including 38 studies overall, of which two were randomized trials. We concluded it is not clear whether immediate surgical repair in congenital diaphragmatic hernia increases mortality or decreases hospitalization days compared to late repair because the certainty of evidence is very low.

