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An Interactive Teaching System for Investigation of Heart Rate Variability

An interactive software system for cardiac data processing, analysis and data storage is presented in this paper. The system works with a real physiological database containing over 1100 patient records received through 24 hour Holter monitoring. The software system is geared toward use from medical students and aims to build on traditional training by enabling the study of various cardiac diseases through mathematical methods. The paper presents the results of the time domain analysis (numerical results and histograms) and gives a graphical expression of the results based on the analysis using spectrograms. The use of graphical tools in the learning process is an effective method of enhancing the learning and obtaining new knowledge that can be the practical basis for future medics. The report provides a comparative analysis of the results of cardiac data analysis of individuals with Myocardial Infarction, Ischemia, and Heart Failure. A comparison of the obtained parameters with the values calculated for healthy individuals is performing. Differences in values of obtained parameters and the type of spectrograms are discussed.