שאלה משלב א׳ בכירורגיית ילדים · מועד 2024 (Sep), שאלה 13

Correct: B — fetal tracheal balloon occlusion is of proven value only in severe cases, and the option as keyed concerns laterality; the examiners keyed B. The clinically correct position is that FETO (fetoscopic endoluminal tracheal occlusion) is offered for severe left-sided CDH with a low observed-to-expected lung-head ratio, and the balloon is placed around 27–30 weeks and removed before delivery, around 34 weeks. Option A is wrong because open intrauterine diaphragmatic repair was abandoned after trials showed no benefit; option C states a reasonable fact about balloon removal timing; option D is wrong because intervention is still possible at 23 weeks.

מקור: Coran-Holcomb p. 154