Exercise-Induced Pulmonary Edema in Heart Failure

Piergiuseppe Agostoni, Gaia Cattadori, Michele Bianchi, Karlman Wasserman

Research output: Contribution to journalArticlepeer-review

Abstract

Background-In heart failure (HF) patients, exercise may increase pulmonary capillary hydrostatic pressure and thereby generate pulmonary edema. If pulmonary edema developed, alveolar-capillary membrane conductance (DM), measured immediately after exercise, would decrease. To test this hypothesis, we measured DM before and at 2 and 60 minutes after exercise. Methods and Results-We studied 10 HF patients with exercise-induced periodic breathing, 10 with peak V̇O2 ≤15 mL · min-1 · kg-1 (severe HF), 10 with V̇O2=15 to 20 mL · min-1 · kg-1 (moderate HF), and 10 normal subjects (control). Using the Roughton-Forster technique, we measured carbon monoxide diffusion capacity (DLCO) and its components, capillary blood volume (VC) and DM, at rest and 2 and 60 minutes after exercise. At rest, DLCO and DM were lowest in periodic breathing and highest in control subjects. DM decreased in periodic breathing, severe HF, and moderate HF (-7.83±3.98, -5.57±2.03, and -3.85±3.53 mL · min-1 · mm Hg-1, respectively; P

Original languageEnglish
Pages (from-to)2666-2671
Number of pages6
JournalCirculation
Volume108
Issue number21
DOIs
Publication statusPublished - Nov 25 2003

Keywords

  • Edema
  • Exercise
  • Heart failure
  • Lung

ASJC Scopus subject areas

  • Physiology
  • Cardiology and Cardiovascular Medicine

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