[Prognostication of the outcome of heart valve prosthesis implantation by the method of nonlinear chaos dynamics of the heart rate].

descriptionPublicationkeyboard_double_arrow_right Article 07 Jun 2001 Russian Journal:Vestnik khirurgii imeni I. I. Grekova, volume 160 (issn: 0042-4625,

Authors: A P, Medvedev; A P, Gavrilushkin; S V, Kiselev; A V, Shelepnev; N A, Smirnov;

pmid: 11258330

[Prognostication of the outcome of heart valve prosthesis implantation by the method of nonlinear chaos dynamics of the heart rate].

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Abstract

An examination of 39 patients with heart diseases was performed before and after operations by the method of geometrical analysis of the nonlinear chaos (fractal) variability of the cardiac rhythm on the basis of the apparatus-programmed complex "Poly-spectrum". Five-minute-long registrations of ECG were carried on. On the basis of the data of examination of 195 healthy volunteers the reference norm of this method parameters was determined. Reliably lower parameters were found in patients with the acquired valvular disease. A dynamic investigation of the geometrical nonlinear structure of the cardiac rhythm has shown the possibility to make a prognosis of early complications after prosthetics of the heart valves.

Keywords

Adult, Heart Valve Prosthesis Implantation, Time Factors, Nonlinear Dynamics, Heart Rate, Risk Factors, Age Factors, Humans, Middle Aged, Prognosis

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