PMID- 10651204 OWN - NLM STAT- MEDLINE DCOM- 20000214 LR - 20190817 IS - 0047-1828 (Print) IS - 0047-1828 (Linking) VI - 64 IP - 1 DP - 2000 Jan TI - Age-adjusted heart rate variability as an index of the severity and prognosis of heart failure. PG - 32-8 AB - The age-adjusted, heart rate variability (HRV) was evaluated as a parameter for the severity of heart failure and its prognosis. HRV was obtained by 24-h Holter monitoring in patients with left ventricular dysfunction (LVD). New York Heart Association (NYHA) functional classification, echocardiography, radioisotope ventriculography, and blood examination were performed, and compared between patients and normal subjects. The evaluation was repeated during the follow-up period. Finally, using the lower limit of HRV, patients were divided into either normal or abnormal group for each low-frequency power (LF) and high-frequency power (HF) (age-adjusted HRV). Other parameters of heart failure and prognosis were compared between these 2 groups. HRV tended to be lower in patients with LVD. HF decreased at the early stage of heart failure, but did not decrease progressively. LF decreased progressively. HRV change paralleled the change of NYHA. The abnormal HRV group showed a poor prognosis for cardiac death, but not for sudden cardiac death. In patients with LVD, HRV was decreased compared with the normal subjects. Change in HRV correlated with the change in NYHA classification. Age-adjusted HRV correlated with cardiac-death prognosis, but not for sudden cardiac death. FAU - Soejima, K AU - Soejima K AD - Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan. ksoejima@bics.bwh.harvard.edu FAU - Akaishi, M AU - Akaishi M FAU - Meguro, T AU - Meguro T FAU - Oyamada, K AU - Oyamada K FAU - Yoshikawa, T AU - Yoshikawa T FAU - Mitamura, H AU - Mitamura H FAU - Ogawa, S AU - Ogawa S LA - eng PT - Journal Article PL - Japan TA - Jpn Circ J JT - Japanese circulation journal JID - 7806868 SB - IM MH - Aged MH - Cardiomyopathy, Dilated/*physiopathology MH - Cause of Death MH - Death, Sudden, Cardiac MH - Electrocardiography, Ambulatory MH - Female MH - Follow-Up Studies MH - Heart Failure/mortality/*physiopathology MH - Heart Rate/*physiology MH - Humans MH - Male MH - Middle Aged MH - Myocardial Infarction/physiopathology MH - Prognosis MH - Reference Values MH - Regression Analysis MH - Severity of Illness Index MH - Time Factors MH - Ventricular Dysfunction, Left/*physiopathology EDAT- 2000/01/29 09:00 MHDA- 2000/02/19 09:00 CRDT- 2000/01/29 09:00 PHST- 2000/01/29 09:00 [pubmed] PHST- 2000/02/19 09:00 [medline] PHST- 2000/01/29 09:00 [entrez] AID - 10.1253/jcj.64.32 [doi] PST - ppublish SO - Jpn Circ J. 2000 Jan;64(1):32-8. doi: 10.1253/jcj.64.32.