Baseline TyG index, myoglobin, and cerebral infarction history predict the onset of pulmonary hypertension in coronary artery disease patients after PCI treatment within a median of 4.5 years: a prospective cohort study

AimTo identify the predictive role of the TyG index for the onset of pulmonary hypertension in patients with coronary artery disease (CAD) who underwent percutaneous coronary intervention (PCI) treatment. MethodsWe performed this prospective cohort study among CAD patients who received PCI treatment in our center from July 2016 to October 2022. The baselines of echocardiography at both cross-sections and blood biomarkers. A coronary angiography operation was also performed. Within a median of 4.5 years of follow-up, the patients underwent echocardiography to measure their pulmonary hypertension (PH). ResultsBaseline BNP was statistically higher in the PH patients (p = 0.007). The baseline myoglobin (MYO), was significantly higher among PH patients (p < 0.001). Though the glucose level showed no difference between PH and non-PH groups, the HDL-C was in a lower level in the PH group (p = 0.033). However, TyG index showed no differences between PH and non-PH groups [6.95 (6.47-7.36) vs. 7.15 (6.49-7.96), p = 0.202]. In the univariate regression, cerebral infarction history, right atria end-diastolic internal diameter, MYO, triglyceride, HDL-C and TyG index (p < 0.05) were potential predictors for PH. Finally, the adjusted logistic regression indicated that cerebral infarction history (p = 0.39), MYO (p = 0.044) and TyG index (p = 0.048) were independent predictors of the onset of PH. ConclusionPH is prevalent in CAD patients after PCI treatment. The baseline TyG index, cerebral infarction history, and MYO level were independent predictors for PH in CAD patients after PCI treatment.