Nonlinear Dynamics of Heart Rate Variability after Acutely Induced Myocardial Ischemia by Percutaneous Transluminal Coronary Angioplasty
Por:
Calderon-Juarez, Martin, Beurini Cruz-Vega, Itayetzin, Hortensia Gonzalez-Gomez, Gertrudis, Lerma, Claudia
Publicada:
1 mar 2023
Resumen:
Several heart rate variability (HRV) characteristics of patients with
myocardial ischemia are associated with a higher mortality risk.
However, the immediate effect of acute ischemia on the HRV nonlinear
dynamical behavior is unknown. The objective of this work is to explore
the presence of nonlinearity through surrogate data testing and describe
the dynamical behavior of HRV in acutely induced ischemia by
percutaneous transluminal coronary angioplasty (PTCA) with linear and
recurrence quantification analysis (RQA). Short-term
electrocardiographic recordings from 68 patients before and after being
treated with elective PTCA were selected from a publicly available
database. The presence of nonlinear behavior was confirmed by
determinism and laminarity in a relevant proportion of HRV time series,
in up to 29.4% during baseline conditions and 30.9% after PTCA without
statistical difference between these scenarios. After PTCA, the mean
value and standard deviation of HRV time series decreased, while
determinism and laminarity values increased. Here, the diminishment in
overall variability caused by PTCA is not accompanied by a change in
nonlinearity detection. Therefore, the presence of nonlinear behavior in
HRV time series is not necessarily in agreement with the change of
traditional and RQA measures.
Filiaciones:
Univ Nacl Autonoma Mexico, Fac Med, Plan Estudios Combinados Med, Mexico City 04510, Mexico
Inst Nacl Cardiol Ignacio Chavez, Dept Electromech Instrumentat, Mexico City 04480, Mexico
Univ Nacl Autonoma Mexico, Fac Sci, Dept Phys, Mexico City 04510, Mexico
Green Published, gold, All Open Access, Gold, Green
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