title: [Heart rate variability in unstable angina during 'day-to-day' monitoring].
abstract: Spectral analysis of heart rate variability was used for assessment of background autonomic activity in patients with unstable angina pectoris. There were weak linear and strong nonlinear links between autonomic activity and frequency of angina pectoris during 'day-to-day' monitoring.
authors.forename: F I
authors.initials: FI
authors.lastname: Belialov
authors.forename: S G
authors.initials: SG
authors.lastname: Kuklin
mesh_terms: D000328:Adult; D000368:Aged; D000789:Angina, Unstable / Q000175:diagnosis* / Q000503:physiopathology*; D002940:Circadian Rhythm; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D008991:Monitoring, Physiologic