Link: https://pubmed.ncbi.nlm.nih.gov/36102982/

Pediatr Surg Int
. 2022 Sep 14. doi: 10.1007/s00383-022-05232-w. Online ahead of print.
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.