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Related Experiment Videos

Pulmonary venous flow in constrictive pericarditis

O M Shapira1, G P Connelley, G S Aldea

  • 1Department of Cardiothoracic Surgery, Boston University Medical Center, Boston, Massachusetts 02118, USA.

Clinical Cardiology
|April 1, 1995
PubMed
Summary
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Radiation-induced constrictive pericarditis can cause abnormal pulmonary vein flow patterns, mimicking restrictive cardiomyopathy. Radical pericardiectomy effectively restored normal flow, highlighting the impact of pericardial scarring on atrial compliance.

Area of Science:

  • Cardiology
  • Cardiac Surgery
  • Medical Imaging

Background:

  • Constrictive pericarditis, often caused by radiation therapy, can lead to significant cardiac dysfunction.
  • Abnormal pulmonary vein flow patterns on echocardiography have been associated with restrictive cardiomyopathy.

Observation:

  • A patient with radiation-induced constrictive pericarditis exhibited a uniphasic diastolic pulmonary vein flow pattern during surgery.
  • This abnormal flow pattern is typically seen in restrictive cardiomyopathy.

Findings:

  • Intraoperative transesophageal echocardiography identified a uniphasic diastolic pulmonary vein flow pattern.
  • Following radical pericardiectomy, the pulmonary vein flow pattern normalized to a biphasic systolic/diastolic profile.
  • The abnormal flow was attributed to reduced left atrial compliance caused by the constrictive pericardial scar.

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Implications:

  • This case suggests that a uniphasic pulmonary vein flow pattern can occur in constrictive pericarditis due to atrial restriction.
  • Radical pericardiectomy is an effective treatment for restoring normal pulmonary vein hemodynamics in such cases.
  • Echocardiographic findings in constrictive pericarditis should be interpreted considering the effects of pericardial scarring on atrial compliance.