Relationship between HRV Parameters and Infarct Site, Number of Diseased Blood Vessels and Prognosis in Patients with AMI

doi:10.7517/issn.1674-0475.220310

Abstract

Abstract: This study investigated the differences and significance of heart rate variability (HRV) parameters with different infarct sites, different coronary artery disease branch numbers and different prognosis outcomes in patients with acute myocardial infarction (AMI). 200 confirmed AMI patients were selected as the AMI group, and 200 non-coronary heart disease patients were selected as the control group. The HRV parameters of the AMI group and the control group were detected. Patients were stratified according to the number of coronary artery lesions, different infarct sites and major adverse cardiac events (MACE) after 18 months of follow-up, and the changes of HRV parameters were analyzed. The results showed the SDNN, SDANN, SDNNI, RMSSD, and PNN50 in the AMI group were all lower than those in the control group (P<0.05). In the AMI group, there were 28 patients with non-ST segment elevation, 114 patients with myocardial infarction of anterior wall and 58 patients with myocardial infarction of inferior wall. The SDNN, SDANN and SDNNI of patients with anterior wall AMI were lower than those of patients with non-ST segment elevation and inferior wall AMI (P<0.05). The SDNN and SDANN of patients with MACE events were lower than those of AMI patients without MACE (P<0.05). Observing the early HRV parameters of AMI patients has a certain clinical reference value for the diagnosis of myocardial infarction site and patient prognosis.

Key words: heart rate variability parameters, infarct location, number of coronary artery lesions, prognostic outcome, acute myocardial infarction

CHEN Zhijie, WANG Chunqing, KANG Xiaoqin, XU Xin, ZHANG Zhiyu. Relationship between HRV Parameters and Infarct Site, Number of Diseased Blood Vessels and Prognosis in Patients with AMI[J]. IMAGING SCIENCE AND PHOTOCHEMISTRY, 2022, 40(4): 804-809.

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