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Research Article: A novel nutritional index for predicting stroke-heart syndrome and clinical outcomes after endovascular treatment

Date Published: 2026-05-18

Abstract:
Metabolic-nutritional reserves influence stroke outcomes, but their role in large vessel occlusion acute ischemic stroke (LVO-AIS) treated with endovascular thrombectomy (EVT) remains unclear. We investigated whether the triglyceride-cholesterol-body weight index (TCBI) predicts dynamic myocardial injury after stroke and 90-day functional outcomes. This two-center retrospective cohort study included 524 anterior-circulation LVO-AIS patients undergoing EVT (2021–2024). TCBI was calculated as (triglycerides × total cholesterol × body weight)/1,000. Myocardial injury was classified using serial cardiac troponin I (cTnI) measurements into no injury, non-dynamic elevation, or dynamic elevation. The primary outcome was poor 90-day functional outcome (modified Rankin Scale [mRS] 3–6). Ordered logistic regression, restricted cubic splines, and the mediation analysis were performed. A total of 524 patients were included. Low TCBI (?1244) was associated with more severe myocardial injury (OR = 1.67, 95% CI: 1.13–2.47, p = 0.010) and 90-day poor functional outcome (OR?=?1.54, 95% CI: 1.06–2.23, p =?0.024). TCBI predicted poor functional outcome with an AUC of 0.723 (95% CI: 0.680–0.766), significantly outperforming albumin, TG, and BMI (all DeLong, p <?0.001). In exploratory mediation analysis, myocardial injury mediated 45.6% of the total effect of low TCBI on poor outcomes (ACME p =?0.004). PSM analyses yielded consistent results. Low TCBI was independently associated with stroke-induced myocardial injury and poor 90-day functional outcomes in LVO-AIS patients undergoing EVT, with myocardial injury serving as a potential mediator. These findings suggest that nutritional status may play a role in post-stroke cardiac and functional recovery, warranting further prospective investigation.

Introduction:
Metabolic-nutritional reserves influence stroke outcomes, but their role in large vessel occlusion acute ischemic stroke (LVO-AIS) treated with endovascular thrombectomy (EVT) remains unclear. We investigated whether the triglyceride-cholesterol-body weight index (TCBI) predicts dynamic myocardial injury after stroke and 90-day functional outcomes.

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