Comparison 1. In‐utero tracheal occlusion (via maternal laparotomy) versus standard postnatal management.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Long‐term infant survival (3 ‐ 6 months)	1	24	Risk Ratio (M‐H, Fixed, 95% CI)	1.06 [0.66, 1.69]