Pediatric Pulmonary Hypertension Associated With Treatment of Myeloproliferative Disorders and Malignant Tumors
Ayako Chida-Nagai, Yukayo Terashita, Shinsuke Hirabayashi, Hirokuni Yamazawa, Yuko Cho, Atsushi Manabe
https://doi.org/10.1002/pul2.70165
Abstract
Pulmonary hypertension (PH) is a severe complication observed in pediatric patients after hematopoietic cell transplantation or chemotherapy. A review of records at Hokkaido University Hospital (2014–2024) identified four cases of PH, each with different etiologies, including pulmonary arterial hypertension, pulmonary veno-occlusive disease, and microthromboembolism. Contributing factors included splenic atrophy, corticosteroid-responsive inflammation, and potential drug-induced vascular remodeling. Although transient PH usually resolves, late-onset PH emphasizes the need for long-term echocardiographic monitoring. These findings underscore the importance of individualized management, avoiding pulmonary vasodilators without proper evaluation, and addressing underlying conditions such as thrombotic microangiopathy or interstitial lung disease.
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