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Pulmonary vasodilator-induced haemodynamic decline and recovery post-discontinuation in two single-ventricle cases
Yuichi Ishikawa1, Yuki Iwaya1, Ayako Kuraoka1
1Department of Pediatric Cardiology, Fukuoka Children's Hospital, Fukuoka, Japan.
Cardiology in the Young
|March 10, 2025
Abstract:
Pulmonary vasodilators increased the systemic-to-pulmonary collateral flow in two single-ventricle cases, causing haemodynamic decline. Discontinuation reversed the collateral flow and improved heart failure, highlighting the need for careful monitoring. Serial cardiac MRI, as a non-invasive tool, may be essential to detect changes in collateral flow and guide vasodilator use for optimal management in this population.

