title: [Relationship between parameters of heart rate variability, angiographical severity of coronary atherosclerosis and functional class of angina in patients with ischemic heart disease].
abstract: OBJECTIVE
  To elucidate relationship between heart rate variability and severity of coronary atherosclerosis.
  
  
  METHODS
  Seventy five patients with class I-IV angina subjected to coronary angiography and 23 apparently healthy subjects of the same age without overt coronary heart disease.
  
  
  METHODS
  Analysis of parameters of variational pulsometry and heart rate entropy at rest and during test with controlled breathing (6 breaths/min).
  
  
  CONCLUSIONS
  Heart rate variability decreased with increase of functional class of angina and severity of coronary artery atherosclerosis. Within same functional class heart rate variability was lower in patients with more severe coronary atherosclerosis.
authors.forename: P Ia
authors.initials: PIa
authors.lastname: Dovgalevskiĭ
authors.forename: O K
authors.initials: OK
authors.lastname: Rybak
authors.forename: N V
authors.initials: NV
authors.lastname: Furman
mesh_terms: D000787:Angina Pectoris / Q000000981:diagnostic imaging / Q000473:pathology* / Q000503:physiopathology; D017023:Coronary Angiography; D003324:Coronary Artery Disease / Q000000981:diagnostic imaging / Q000473:pathology* / Q000503:physiopathology; D003331:Coronary Vessels / Q000473:pathology* / Q000503:physiopathology; D006339:Heart Rate; D006801:Humans; D008297:Male; D008875:Middle Aged; D012720:Severity of Illness Index