Prognostic Significance of Relative Hyperglycemia after Percutaneous Coronary Intervention in Patients with and without Recognized Diabetes

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Author(s): Qi Zhao, Tingyu Zhang, Yujing Cheng, Yue Ma, Yingkai Xu, Jiaqi Yang, Yujie Zhou*

Journal Name: Current Vascular Pharmacology

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Abstract:

Background: The research on the association between relative glycemic level post-percutaneous coronary intervention (PCI) and adverse prognosis in non-ST-segment elevation acute coronary syndrome (NSTE-ACS) patients is relatively inadequate.

Objective: To identify whether the glycemic level post-PCI predicts adverse prognosis in NSTE-ACS patients.

Methods: Patients (n=2465) admitted with NSTE-ACS who underwent PCI were enrolled. The relative glycemic level post-procedure was calculated as blood glucose level post-PCI divided by HbA1c level, which was named post-procedural glycemic index (PGI). The primary observational outcome of this study was major adverse cardiovascular events (MACE) [defined as a composite of all-cause death, non-fatal myocardial infarction (MI) and any revascularization].

Results: The association between PGI and MACE rate presented as a U-shape curve. Higher PGIs [hazard ratio (HR): 1.669 (95% confidence interval (CI): 1.244-2.238) for the third quartile (Q3) and 2.076 (1.566-2.753) for the fourth quartile (Q4), p<0.001], adjusted for confounding factors, were considered to be one of the independent predictors of MACE. The association between the PGI and the risk of MACE was more prominent in the non-diabetic population [HR (95%CI) of 2.356 (1.456-3.812) for Q3 and 3.628 (2.265-5.812) for Q4, p<0.001]. There was no significant differences in MACE risk between PGI groups in the diabetic population.

Conclusion: Higher PGI was a significant and independent predictor of MACE in NSTE-ACS patients treated with PCI. The prognostic effect of the PGI is more remarkable in subsets without pre-existing diabetes than in the overall population. The predictive value of PGI was not identified in the subgroup with diabetes.

Keywords: non-ST-segment elevation acute coronary syndrome, Percutaneous coronary intervention, Post-procedural glycemic index

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(E-pub Ahead of Print)
DOI: 10.2174/1570161118666200317145540
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