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Main pulmonary artery stenosis caused by fibrocalcified mass in a young infant

Heon-Seok Han1, Jeong-Hyun Park, Deok Soo Kim

  • 1Department of Pediatrics, Chungbuk National University College of Medicine, Cheongju, Korea. hshan@med.chungbuk.ac.kr

Journal of Korean Medical Science
|August 13, 2002
PubMed

Insights

A rare case of main pulmonary artery stenosis in an infant, caused by a fibrous mass and patent ductus arteriosus, was successfully treated with surgical removal. This intervention resolved the significant pressure gradient, offering a favorable outcome.

Area of Science:

  • Cardiovascular Medicine
  • Pediatric Cardiology
  • Surgical Pathology

Background:

  • Main pulmonary artery stenosis is a rare condition, often congenital or acquired.
  • Patent ductus arteriosus is a common congenital heart defect in neonates.
  • Early diagnosis and intervention are crucial for managing pediatric cardiac conditions.

Observation:

  • A 1-month-old infant presented with a cardiac murmur.
  • Echocardiography revealed a circumferential mass in the main pulmonary artery causing a 49 mmHg gradient and patent ductus arteriosus.
  • The mass persisted over a 3-month follow-up.

Findings:

  • Angiography confirmed a filling defect in the main pulmonary artery, distal to a normal pulmonary valve.
  • Surgical removal of the fibrous material and patent ductus arteriosus ligation eliminated the pressure gradient.
  • Histopathology showed fibrous tissue, fibrinous coagulum, and calcification.

Implications:

  • Surgical intervention is effective for treating main pulmonary artery stenosis caused by protruding fibrous material.
  • This case highlights the importance of comprehensive diagnostic evaluation in infants with cardiac murmurs.
  • Timely surgical management can lead to excellent outcomes in complex congenital heart defects.

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