Clinical Focus ›› 2026, Vol. 41 ›› Issue (1): 12-17.doi: 10.3969/j.issn.1004-583X.2026.01.002

• Original article • Previous Articles     Next Articles

TyG and TyG-BMI indices predict major adverse cardiovascular events after emergency revascularization for acute myocardial infarction

Ouyang Weili(), Jiang Yile   

  1. Department of Cardiology, the People's Hospital of Danyang, Affiliated Danyang Hospital of Nantong University, Danyang 212300, China
  • Received:2025-12-11 Online:2026-01-20 Published:2026-02-02
  • Contact: Ouyang Weili E-mail:734514789@qq.com

Abstract:

Objective To evaluate the predictive value of the triglyceride-glucose index (TyG) and the TyG-body mass index (BMI) index for the prognosis of patients with acute myocardial infarction (AMI) treated with emergency percutaneous coronary intervention (PCI). Methods We retrospectively analyzed 201 consecutive AMI patients who underwent emergency PCI to open the culprit vessel within 12 hours at the People's Hospital of Danyang between January 1, 2021 and December 31, 2022. Patients were classified by electrocardiogram (ECG) into non ST elevation myocardial infarction (NSTEMI) group(n=40) and ST elevation myocardial infarction (STEMI) group (n=161). Based on the cohort median TyG value, patients were dichotomized into below-median (Q1) group (n=100) and above-median (Q2) TyG group (n=101). Ninety-six contemporaneous patients with negative coronary angiography served as controls. Clinical and laboratory data, including TyG and TyG-BMI indices, were collected. Patients were followed for 24 months for occurrence of major adverse cardiovascular events (MACE). The predictive value of TyG and TyG-BMI indices for the prognosis of patients with AMI treated with emergency PCI was analyzed. Results Both NSTEMI and STEMI patients had higher TyG and TyG-BMI indices than controls (TyG: NSTEMI 9.16±0.72 and STEMI 9.46±0.69 vs control 8.66±0.50, both P<0.01; TyG-BMI: NSTEMI 241.04±39.49 and STEMI 255.50±44.45 vs control 212.74±33.27, both P<0.01). STEMI patients exhibited higher TyG and TyG-BMI than NSTEMI patients (9.46±0.69 vs 9.16±0.72,255.50±44.45 vs 241.04±39.49, P<0.05). TyG-BMI correlated positively with cardiac troponin I (cTnI; R=0.23, P<0.01), left ventricular end-diastolic diameter (LVDd; R=0.505, P<0.01), and Gensini score (R=0.44, P<0.01), and negatively with left ventricular ejection fraction (LVEF; R=-0.581, P<0.01). At 24 months, MACE incidence was higher in the NSTEMI and STEMI groups than in controls (P<0.05), and higher in the TyG above-median (Q2) group than the below-median (Q1) group (P<0.05). Kaplan-Meier analysis showed fewer MACE events among patients with lower TyG values. Conclusion The TyG and TyG-BMI indices show prognostic value for patients undergoing emergency PCI.

Key words: myocardial infarction, triglyceride glucose (TyG) index, triglyceride glucose body mass index (TyG-BMI), major adverse cardiac events

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