30.8% of patients were at moderate to severe risk of malnutrition.
The overall incidence of was 33.2%.
A negative dose-response relationship was found between the (GNRI) score and post-stroke myocardial injury.
Moderate to severe malnutrition risk, as evaluated by the GNRI score, was associated with an increased risk of post-stroke myocardial injury (OR: 3.25).
After adjusting for confounders, the association remained robust, with an odds ratio of 4.28 following propensity score matching.
Simplified
BACKGROUND: is a potentially preventable complication after acute ischemic stroke. Therefore, identifying modifiable variables, such as nutritional status, is crucial for reducing the risk of post-stroke myocardial injury. This study aimed to investigate the association between malnutrition risk on admission, as evaluated by the (GNRI), and post-stroke myocardial injury in elderly patients with first‑ever ischemic stroke.
METHODS: We conducted this study using the GNRI score to evaluate the nutritional status of older patients with first‑ever ischemic stroke. The primary outcome of interest was post-stroke myocardial injury. Restricted cubic spline (RCS) was executed to assess the dose-effect relationship between the GNRI score and post-stroke myocardial injury. The correlation of malnutrition risk identified by GNRI score for post-stroke myocardial injury was examined using multivariate logistic regression analysis. To balance the potential confounders and verify the robustness of the results, propensity score matching (PSM) was further conducted.
RESULTS: Based on the GNRI score, 30.8% of patients were at moderate to severe risk of malnutrition. The overall incidence of post-stroke myocardial injury was 33.2%. The adjusted RCS analysis revealed a negative dose-response relationship between the GNRI score and post-stroke myocardial injury (P for non-linearity = 0.536). After adjusting for confounders, moderate to severe malnutrition risk, as evaluated by the GNRI score, was substantially associated with an increased risk of post-stroke myocardial injury (OR: 3.25; 95% CI: 1.93-5.48; P < 0.001). Following PSM adjustment, the association between the GNRI score and post-stroke myocardial injury remained significantly robust (OR: 4.28; 95% CI: 2.34-7.83; P < 0.001).
CONCLUSION: Malnutrition risk on admission is associated with higher risk of post-stroke myocardial injury among elderly patients with first‑ever ischemic stroke. Early screening for malnutrition risk is crucial in the management of patients with first‑ever ischemic stroke.
Key numbers
30.8%
Malnutrition Risk Prevalence
Percentage of patients at moderate to severe malnutrition risk based on score.
33.2%
Incidence
Overall incidence of myocardial injury among stroke patients.
3.25
Increased Risk of Myocardial Injury
for associated with malnutrition risk.
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