Observational studyCardiovascular diabetology2024
Prognostic effect of the TyG index on patients with severe aortic stenosis following transcatheter aortic valve replacement: a retrospective cohort study.
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Who cites it
11 citing papers in PubMed, 1 synthesis or guideline pooled it.
- The prognostic role of right ventricular-pulmonary arterial coupling in aortic stenosis patients undergoing TAVR: a systematic review and meta-analysis.BMC cardiovascular disorders · 2025Pooled it
- A novel composite inflammatory-metabolic index for long-term prognosis after TAVR: the modifying role of left ventricular ejection fraction.Frontiers in cardiovascular medicine · 2026Article
- Prognostic value of the AIP index in patients with severe aortic stenosis undergoing transcatheter aortic valve replacement.Frontiers in nutrition · 2026Article
- Triglyceride-glucose index predicts early, short-term, and long-term mortality after transcatheter aortic valve replacement.American heart journal plus : cardiology research and practice · 2026Article
- Associations between blood cell-based inflammatory indices and their changes and mortality in patients undergoing transcatheter aortic valve replacement: a retrospective investigation with prospective multicenter cohort validation study.International journal of surgery (London, England) · 2025Article
- Diabetes modifies the association between the triglyceride-glucose index and subclinical myocardial injury: A prospective cohort study.Cardiovascular diabetology · 2025Article
- Triglyceride-Glucose Index and the Risk of Calcific Aortic Valve Stenosis: A Bidirectional Mendelian Randomization Study.Anatolian journal of cardiology · 2025Article
- The association between triglyceride glucose-body mass index and all-cause mortality in critically ill patients undergoing cardiac surgery: a retrospective analysis from the MIMIC-IV database.BMC cardiovascular disorders · 2025Article
- The prognostic value of the triglyceride-glucose index in predicting recurrence of acute pancreatitis: a retrospective cohort study.Nutrition & metabolism · 2025Article
- Multimodal Visualization and Explainable Machine Learning-Driven Markers Enable Early Identification and Prognosis Prediction for Symptomatic Aortic Stenosis and Heart Failure With Preserved Ejection Fraction After Transcatheter Aortic Valve Replacement: Multicenter Cohort Study.Journal of medical Internet research · 2025Article
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Abstract
backgroundThe triglyceride glucose (TyG) index, as a reliable marker of insulin resistance, is associated with the incidence and poor prognosis of various cardiovascular diseases. However, the relationship between the TyG index and clinical outcomes in patients with severe aortic stenosis (AS) who underwent transcatheter aortic valve replacement (TAVR) remains unclear.
methodsThis study consecutively enrolled 1569 patients with AS underwent TAVR at West China Hospital of Sichuan University between April 2014 and August 2023. The outcomes of interest included all-cause mortality, cardiovascular mortality, and major adverse cardiovascular events (MACE). Multivariate adjusted Cox regression and restricted cubic splines (RCS) regression analyses were used to assess the associations between the TyG index and the clinical outcomes. The incremental prognostic value of the TyG index was further assessed by the time-dependent Harrell's C-index, integrated discrimination improvement (IDI) and the net reclassification improvement (NRI).
resultsDuring a median follow-up of 1.09 years, there were 146, 70, and 196 patients experienced all-cause death, cardiovascular death, and MACE, respectively. After fully adjusting for confounders, a per-unit increase of TyG index was associated with a 441% (adjusted HR: 5.41, 95% CI: 4.01-7.32), 385% (adjusted HR: 4.85, 95% CI: 3.16-7.43), and 347% (adjusted HR: 4.47, 95% CI: 3.42-5.85) higher risk of all-cause mortality, cardiovascular mortality and MACE, respectively. The RCS regression analyses revealed a linear association between TyG index and endpoints (all P for non-linearity > 0.05) with 8.40 as the optimal binary cutoff point. Furthermore, adding TyG index to the basic risk model provided a significant incremental value in predicting poor prognosis (Time-dependent Harrell's C-index increased for all the endpoints; All-cause mortality, IDI: 0.11, P < 0.001; NRI: 0.32, P < 0.001; Cardiovascular mortality, IDI: 0.043, P < 0.001; NRI: 0.37, P < 0.001; MACE, IDI: 0.092, P < 0.001; NRI: 0.32, P < 0.001).
conclusionsIn patients with severe AS receiving TAVR, there was a positive linear relationship between TyG index and poor prognosis, with 8.4 as the optimal bivariate cutoff value. Our findings suggest TyG index holds potential value for risk stratification and guiding therapeutic decisions in patients after TAVR.
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