Application of machine learning to predict the occurrence of arrhythmia after acute myocardial infarction

Table 1 Variables for machine learning

Category	Variables
Demographics and medical history	Age, sex, smoker, drinker, Pre-hypertension, Pre-diabetes Mellitus, Prior MI, Prior CI, Prior HF, Prior CHD
Baseline characteristics of admission	SBP, DBP, HR, Killip, NYHA
Laboratory characteristics	Pro-BNP, CRP, Total cholesterol, Triglyceride, HDL, LDL, Cr, K + , TNI, CK-MB, UGLU, DDP
Findings on ECG	P-R, QTc, BBB (LAFB, LPFB, LBBB, RBBB)
Echocardiographic parameters	LVEF, FS, E/A, Dt, LVEDD, IVST, LVPWT, LA, RA (up and down), RA (right and left), PA, Vpa, Vao, ventricular wall motion
Angiographic characteristics	LAD, LCX, RCA, LM, LAD + LCX, LAD + RCA, RCA + LCX, Triple vessels

MI indicates myocardial infarction; CI, cerebral infarction; HF, heart failure; CHD, coronary heart disease; SBP, systolic blood pressure; DBP, diastolic blood pressure; HR, heart rate; pro-BNP, pro-B-type natriuretic peptide; CRP, C-reactive protein; HDL-C, high-density lipoprotein cholesterol; LDL-C, low-density lipoprotein cholesterol; DDP, D dimer; Cr, creatinine; TNI, Troponin I; CK-MB, creatine Kinase Isoenzyme; UGLU, urine glucose; P-R, PR interval; QTc, QTc interval; BBB, bundle-branch-block; LAFB, left anterior branch block; LPFB, left posterior branch block; LBBB, left bundle branch block; RBBB, right bundle branch block; LVEF, left ventricular ejection fraction; FS, fraction shortening; E/A, mitral valve peak velocity early diastolic filling (E wave) to peak velocity of late diastolic filling (A wave) ratio; Dt, E deceleration time; LVEDD, left ventricular end-diastolic diameter; IVST, interventricular septum thickness; LVPWT, left ventricular posterior wall thickness; LA, left atrium diameter; RA (up and down), right atrium up and down diameter; RA (right and left), right atrium right and left diameter; PA, pulmonary artery internal dimension; Vpa, Pulmonary peak flow rate; Vao, Peak aortic velocity; LAD, left anterior descending; LCX, left circumflex artery; RCA, right coronary artery; LM, left main coronary artery

ISSN: 1472-6947