Association between the triglyceride–glucose index and left ventricular myocardial work indices in patients with coronary artery disease

Figures

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  Figure 1. Flowchart of study patients. CAD, coronary artery disease; eGFR, estimated glomerular filtration rate; LVEF, left ventricular ejection fraction; TyG, triglyceride–glucose.

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  Figure 2. Correlation analysis of potential risk factors for GLS and MV parameters. Note: GWW was converted by natural logarithmic function. GLS, global longitudinal strain; MW, myocardial work; SBP, systolic blood pressure; DBP, diastolic blood pressure; BMI, body mass index; eGFR, estimated glomerular filtration rate; TC, total cholesterol; TG, triglyceride; LDL-C, low-density lipoprotein cholesterol; FBG, fasting blood glucose; HbA1c, glycated hemoglobin A1c; TyG, triglyceride–glucose; LAD, left atrial diameter; LVEDD, left ventricular end diastolic diameter; LVEDV, left ventricular end-diastolic volume; LVEF, left ventricular ejection fraction; GWI, global work index; GCW, global useful work; GWW, global wasteful work; GWE, global work efficiency.

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  Figure 3. RCS model of the association between TyG index and GWW. Note: GWW was converted by natural logarithmic function. Data were fitted by a linear regression model, and the model was conducted with 4 knots at the 5th, 35th, 65th, 95th percentiles of TyG (reference is the 5th percentile). Solid lines indicate β, and shadow shape indicate 95% CIs. CI, confidence interval. RCS, restricted cubic spline; TyG, triglyceride–glucose; GWW, global wasteful work.

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  Figure 4. Response surface plot of the association of TG, FBG and GWW. Note: GWW was converted by natural logarithmic function. GWW, global wasteful work; TG, triglyceride; FBG, fasting blood glucose.

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  Figure 5. Subgroup analysis of correlation between TyG index and GWW in patients with CAD. Note: GWW was converted by natural logarithmic function. TyG, triglyceride–glucose; GWW, global wasteful work; CAD, coronary artery disease; eGFR, estimated glomerular filtration rate.