Association between oral infections, triglyceride-glucose index, and in-stent restenosis.

Abstract

To investigate oral infections in patients suffering in-stent restenosis (ISR) and non-ISR and analyze the possible correlation between the oral infection and triglyceride-glucose (TyG) index, a clinical surrogate indicator of insulin resistance (IR). A cross-sectional design was used, in which 586 patients with acute coronary syndrome who underwent coronary angiography 6-24months after coronary stent implantation were recruited. The modified total dental index (TDI) was used to evaluate the status of oral inflammation. In both univariate analyses, TDI scores [3 (1.5, 4.5) vs. 2.5 (1.5, 4.0), p < 0.01] and a multivariate regression model (OR=1.202, 95% CI=1.085-1.333, p < 0.01), the TDI significantly correlated with ISR. The TyG index was positively associated with ISR (OR=1.766, 95% CI=1.055-2.957, p < 0.05). Correlation analysis showed that TDI was positively correlated with TyG index (r=0.190, p < 0.01). Using linear regression analysis, higher TDI scores were significantly associated with IR (95% CI=0.029-0.063, p < 0.01). Oral infections and TyG index were independently and positively correlated with ISR in patients with acute coronary syndrome. Oral inflammatory burden assessed by TDI score was associated with IR.