Am J Cardiol. 1997 Sep 15;80(6):779-83.  

Dynamic analysis of heart rate may predict subsequent ventricular tachycardia
after myocardial infarction.

Makikallio TH, Seppanen T, Airaksinen KE, Koistinen J, Tulppo MP, Peng CK,
Goldberger AL, Huikuri HV.

Department of Medicine, University of Oulu, Finland.

Dynamics analysis of RR interval behavior and traditional measures of heart rate
variability were compared between postinfarction patients with and without
vulnerability to ventricular tachyarrhythmias in a case-control study.
Short-term fractal correlation of heart rate dynamics was better than
traditional measures of heart rate variability in differentiating patients with
and without life-threatening arrhythmias.

PMID: 9315590 [PubMed - indexed for MEDLINE]