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Assessment of triglyceride-glucose composite indices associated mortality risk in diabetes-related heart failure
Qijie Zhao1, Xiao Cai2, Xing Wang3
1Department of Pharmacy, West China Hospital of Sichuan University, Chengdu, People's Republic of China.
Insights
The triglyceride-glucose (TyG) index, particularly TyG-Age, strongly predicts mortality in patients with diabetes-related heart failure (dHF). These indices, along with the TRS-HFDM score, can help identify high-risk dHF patients for better clinical management.
Area of Science:
- Cardiology
- Endocrinology
- Public Health
Background:
- Diabetes mellitus significantly increases the risk of heart failure.
- The triglyceride-glucose (TyG) index is a known risk factor for diabetes-related heart failure (dHF).
- A validated clinical risk score is needed to identify dHF patients at high risk.
Purpose of the Study:
- To validate a practical clinical risk score (TRS-HFDM) for dHF in a large diabetic cohort.
- To assess if the TRS-HFDM score can identify dHF patients with elevated TyG index and poor outcomes.
- To evaluate the prognostic value of TyG-related indices for mortality in dHF patients.
Main Methods:
- Analysis of data from multiple NHANES cycles (1999-2018) involving 3,455 participants with dHF.
- Calculation of a simplified TRS-HFDM score and TyG-related parameters.
- Utilized multivariable Cox proportional hazards models, Kaplan-Meier curves, and restricted cubic splines (RCS) to identify independent predictors.
Main Results:
- Higher TRS-HFDM scores were significantly associated with poorer survival in dHF patients.
- High quartile levels of TyG-related indices, especially TyG-Age, were significantly associated with increased mortality (TyG-Age HR=6.94).
- Nonlinear trends indicated a strong correlation between TyG-Age indices and dHF mortality.
Conclusions:
- TyG-related indices, particularly TyG-Age, possess significant prognostic value for mortality in adults with dHF.
- TyG-Age and TRS-HFDM can serve as valuable surrogate biomarkers for the clinical management of dHF.
- These findings support the use of TyG-Age and TRS-HFDM in risk stratification for dHF patients.
Background:
Patients with diabetes are at an increased risk of heart failure. The triglyceride-glucose index increases the risk of diabetes-related heart failure (dHF). We aimed to validate a practical clinical risk score for dHF in a large diabetic cohort and assess whether this score can identify dHF patients with an elevated triglyceride-glucose (TyG) index who have poor outcomes.
Methods:
Participants were drawn from multiple NHANES cycles (1999-2018). A simplified TRS-HFDM score (0-6 points) and TyG-related parameters were calculated in 3,455 participants with dHF. Candidate variables were evaluated using multivariable Cox proportional hazards models, Kaplan-Meier curves, and restricted cubic splines (RCS); independent predictors with statistical significance were included. Sensitivity analyses tested robustness.
Results:
Kaplan-Meier analysis revealed that higher levels of TRS-HFDM were significantly associated with poor dHF participants survival. Multivariate-adjusted Cox regression analysis revealed that high quartile levels of TyG-related indices were significantly associated with mortality in participants with dHF [TyG-Age: HR = 6.94, 95% CI: 4.34-11.08, P < 0.001; TyG-eGFR: HR = 3.78, 95% CI: 2.66-5.37, P < 0.001]. The participants in the highest quartile of TyG-Age had a six-fold increased risk of mortality compared to those in the lowest quartile (95% CI: 3.93-10.24). Nonlinear trends were observed between TyG-Age indices and mortality of dHF participants (P for overall < 0.0001; P for nonlinear < 0.0001). The sensitivity analyses supported the positive correlations between TyG-related indices and mortality of the TRS-HFDM-determined dHF population.
Conclusion:
TyG-related indices, especially TyG-Age, have strong prognostic value for mortality in adults with dHF. TyG-Age and TRS-HFDM may serve as surrogate biomarkers for clinical management of dHF.
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