Pediatr Surg Int

. 2022 Sep 14.

 doi: 10.1007/s00383-022-05232-w. Online ahead of print. https://pubmed.ncbi.nlm.nih.gov/36102982/

Prenatal predictors of mortality in fetuses with congenital diaphragmatic hernia: a systematic review and meta-analysis

Kazunori Masahata ^# 1, Masaya Yamoto ^# 2, Satoshi Umeda ^# 3, Kouji Nagata ⁴, Keita Terui ⁵, Makoto Fujii ⁶, Masayuki Shiraishi ⁷, Masahiro Hayakawa ⁸, Shoichiro Amari ⁹, Kouji Masumoto ¹⁰, Tadaharu Okazaki ¹¹, Noboru Inamura ¹², Katsuaki Toyoshima ¹³, Yuki Koike ¹⁴, Taizo Furukawa ¹⁵, Yuta Yazaki ¹⁶, Akiko Yokoi ¹⁷, Masayuki Endo ¹⁸, Yuko Tazuke ¹⁹, Hiroomi Okuyama ¹⁹, Noriaki Usui ³

Affiliations expand

• PMID: 36102982
• DOI: 10.1007/s00383-022-05232-w

Abstract

Purpose: This study aimed to evaluate prenatal predictors of mortality in fetuses with congenital diaphragmatic hernia (CDH).

Methods: A systematic literature search was performed to identify relevant observational studies that evaluated the ability of lung-to-head ratio (LHR), observed-to-expected LHR (o/e-LHR), observed-to-expected total fetal lung volume (o/e-TFLV), lung-to-thorax transverse area ratio (L/T ratio), intrathoracic herniation of the liver and the stomach, and side of diaphragmatic hernia, using a threshold for the prediction of mortality in fetuses with CDH. Study quality was assessed using the QUADAS-2 tool. Hierarchical summary receiver operating characteristic curves were constructed.

Results: A total of 50 articles were included in this meta-analysis. The QUADAS-2 tool identified a high risk of bias in more than one domain scored in all parameters. Among those parameters, the diagnostic odds ratio of mortality with o/e-LHR < 25%, o/e-TFLV < 25%, and L/T ratio < 0.08 were 11.98 [95% confidence interval (CI) 4.65-30.89], 11.14 (95% CI 5.19-23.89), and 10.28 (95% CI 3.38-31.31), respectively. The predictive values for mortality were similar between the presence of liver herniation and retrocardiac fetal stomach position.

Conclusions: This systematic review suggests that o/e-LHR, o/e-TFLV, and L/T ratio are equally good predictors of neonatal mortality in fetuses with isolated CDH.

Keywords: Congenital diaphragmatic hernia; Fetal lung volume; Liver herniation; Lung to head ratio; Lung to thorax transverse area ratio; Prenatal diagnosis.

© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.