[Respiratory disorders in acquired heart valve defects with various degrees of heart failure]

Vutr Boles. 1985;24(1):99-107.
[Article in Bulgarian]


The respiratory disorders with various degrees of cardiac insufficiency were studied in 226 patients with acquired heart defects. The indices characterizing the external respiration, alveolar ventilation, alveolar-capillary diffusion, functional and real intrapulmonary shunts and acid-base state were followed up. The results from the numerous indices followed up significantly express the progressive intensification of respiratory disorders with the advancement of cardiac insufficiency. In stage I of cardiac insufficiency, prior to the manifestation of clinical signs of pulmonary stasis, distinct disturbances were established in DLCO, Qs/Qt, PaO2, which, to a great extent, characterize the early respiratory disorders and have a definite importance for the diagnostic and therapeutic behaviour. Most severe are the functional disorders in respiratory system in stage II B of cardiac insufficiency.

Publication types

  • Comparative Study
  • English Abstract

MeSH terms

  • Acid-Base Equilibrium
  • Adult
  • Aortic Valve*
  • Female
  • Heart Failure / physiopathology*
  • Heart Valve Diseases / physiopathology
  • Humans
  • Male
  • Middle Aged
  • Mitral Valve*
  • Pulmonary Circulation
  • Respiration
  • Respiration Disorders / physiopathology*
  • Respiratory Function Tests