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Related Experiment Videos

Pulmonary veno-occlusive disease.

S Veeraraghavan1, M N Koss, O P Sharma

  • 1Division of Pulmonary and Critical Care Medicine, University of Southern California School of Medicine, Los Angeles 90033, USA.

Current Opinion in Pulmonary Medicine
|August 26, 1999
PubMed
Summary

Pulmonary veno-occlusive disease (PVOD) is a rare condition causing pulmonary hypertension, primarily in young individuals. Diagnosis requires lung biopsy, and effective treatments are lacking, leading to a poor prognosis.

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Area of Science:

  • Medicine
  • Cardiology
  • Pulmonology

Background:

  • Pulmonary veno-occlusive disease (PVOD) is a rare cause of pulmonary hypertension.
  • It predominantly affects children and young adults.
  • The etiology of PVOD remains largely unknown, with viral infections and certain drugs implicated.

Purpose of the Study:

  • To summarize the key features of pulmonary veno-occlusive disease.
  • To highlight diagnostic criteria and current treatment limitations.

Main Methods:

  • Review of clinical presentation and diagnostic findings in PVOD.
  • Histopathological examination of lung biopsy specimens.
  • Assessment of treatment outcomes and prognosis.

Main Results:

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  • PVOD presents with symptoms of right-sided heart failure.
  • Radiological findings include prominent pulmonary arteries, Kerley B lines, pleural effusion, and mediastinal adenopathy.
  • Histopathology reveals eccentric intimal fibrosis, recanalized thrombi in pulmonary veins, arterialized veins, alveolar edema, and medial hypertrophy of arteries.

Conclusions:

  • PVOD is a severe form of pulmonary hypertension with characteristic histopathological findings.
  • Diagnosis is confirmed via lung biopsy.
  • Currently, no effective treatments exist, and lung transplantation is an option with a poor overall prognosis.