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
Hokkaido University.
Japan

Pulmonary Circulation
Pulm Circ 2025; 15:
DOI: 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.

Category
Class V. Pulmonary Hypertension Associated with Hematological, Systemic, Metabolic, Nutritional and Other Disorders

Age Focus: Pediatric Pulmonary Vascular Disease

Fresh or Filed Publication: Fresh (PHresh). Less than 1-2 years since publication

Article Access
Free PDF File or Full Text Article Available Through PubMed or DOI: Yes

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