Pulmonary function in dogs with mitral valve regurgitation.

Mitral valve regurgitation was created in 2 groups of dogs. Groups were selected on absence (group 1) or presence (group 2) of clinical signs of congestive left ventricular failure. Group-2 dogs, in which mean left atrial pressures were greater than 30 mm of Hg, had increases in heart rate, pulmonary arterial mean pressure, left atrial diameter, and left ventricular diastolic diameter. These changes were associated with decreased arterial O2 tension, decreased static and dynamic compliance, reduced lung volumes, and increased pulmonary resistance. Group-1 dogs, in which mean left atrial pressure was less than 30 mm of Hg, had moderate changes in hemodynamics, but no changes in pulmonary function, except during exercise when arterial O2 tension decreased.

• Publication year

  1986

• Venue

  American Journal of Veterinary Research

• Publication date

  1986-12-01

• Fields of study

  Biology, Medicine

• Identifiers
  DOI 10.2460/ajvr.1986.47.12.2498PMID 3800110
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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