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[Thromboembolic pulmonary arterial hypertension].

J Brune1, M Perol, J F Mornex

  • 1Service de pneumologie, hôpital cardiovasculaire et pneumologique Louis-Pradel, Lyon.

La Revue Du Praticien
|June 11, 1991
PubMed
Summary

Chronic thromboembolic pulmonary hypertension involves elevated pulmonary artery pressure, often delaying right heart failure. Diagnosis can be challenging, especially without a history of pulmonary embolism or phlebitis.

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Area of Science:

  • Cardiology
  • Pulmonology
  • Vascular Medicine

Context:

  • Pulmonary hypertension presents diagnostic challenges, particularly differentiating between acute and chronic thromboembolic forms.
  • Chronic thromboembolic pulmonary hypertension (CTEPH) allows right ventricular adaptation to slowly rising pulmonary artery pressures, unlike acute pulmonary embolism.
  • Distinguishing CTEPH from other conditions like psychogenic dyspnea and primary pulmonary hypertension is crucial.

Purpose:

  • To elucidate the diagnostic complexities of thromboembolic pulmonary hypertension.
  • To highlight the differences in right ventricular response between acute and chronic pulmonary embolism.
  • To identify key diagnostic clues and differential diagnoses for pulmonary hypertension.

Summary:

  • Thromboembolic pulmonary hypertension occurs acutely or chronically. In chronic cases, the right ventricle adapts to elevated pulmonary artery pressure, delaying heart failure.
  • Diagnosis is difficult without a history of prior embolism or phlebitis, with psychogenic dyspnea as an initial differential.
  • Pulmonary function tests, including arterial blood gases and radionuclide perfusion scans, aid diagnosis. Differentiating CTEPH from primary pulmonary hypertension can be challenging.

Impact:

  • Improved diagnostic strategies for pulmonary hypertension.
  • Enhanced understanding of right ventricular adaptation in chronic thromboembolic disease.
  • Facilitation of earlier and more accurate diagnosis of CTEPH, potentially leading to better patient outcomes.

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