Detection of Ischemic Episodes Based on Two Consecutive Declines in the JT/ST Algebraic Relationship

Abstract

The main objective of this paper is to explore if the JT/ST algebraic relationship could be helpful for the identification of ischemic changes in the human cardiovascular system. The suggested visualization technique highlights the specifics of complex dynamical processes in the self-organization of the heart system during the load and recovery processes. It is demonstrated that the nonlinear algebraic relationship between the duration of the JT interval and the ST amplitude can be beneficial for a deeper interpretation of dynamical processes in the human cardiovascular system. The JT/ST relationship is used for the identification of the ischemic changes and for the characterization of individual performance of the person during the load and recovery processes.

Visualization of Complex Processes in Cardiovascular System during Electrical Auricular Vagus Nerve Stimulation

“…Numerical algorithms for the identification of algebraic relationships between cardiac intervals have already been designed and implemented in several previous studies [ 13 , 14 , 15 ]. These algorithms are utilized in this paper for the construction of phase plots representing complex dynamical processes during the self-organization of the cardiovascular system.…”