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Stress Hyperglycemia Ratio Is Associated with Intracardiac Thrombus in Acute Ischemic Stroke
Vedat Cicek1, Almina Erdem2, Ezgi Hasret Kozan Çıkırıkçı3
1Department of Radiology, Machine and Hybrid Intelligence Lab, Northwestern University, Chicago, IL, United States; Tatvan State Hospital, Bitlis, Türkiye.
Insights
The stress hyperglycemia ratio (SHR) is linked to hidden intracardiac thrombi in acute ischemic stroke (AIS) patients. This finding may improve risk assessment and guide the use of transesophageal echocardiography (TEE).
Area of Science:
- Cardiology
- Neurology
- Biomarker Research
Background:
- Transthoracic echocardiography (TTE) is standard for cardiac evaluation in acute ischemic stroke (AIS) but can miss intracardiac thrombi.
- Transesophageal echocardiography (TEE) detects thrombi missed by TTE.
- Stress hyperglycemia ratio (SHR) is a novel cardiovascular biomarker, but its role in detecting TTE-undetected intracardiac thrombi in AIS is unknown.
Purpose of the Study:
- To investigate the association between SHR and intracardiac thrombus in AIS patients.
- To determine if SHR can identify thrombi missed by TTE but detected by TEE.
- To evaluate SHR's potential in risk stratification for AIS patients.
Main Methods:
- Retrospective study of 486 AIS patients with negative TTE but positive TEE findings.
- Analysis of demographic, laboratory, and echocardiographic data.
- Logistic regression and ROC analysis to assess independent associations with intracardiac thrombus.
Main Results:
- TEE detected intracardiac thrombus in 13.2% of patients.
- Patients with thrombus had significantly higher SHR, CRP, and creatinine, and lower ejection fraction.
- SHR was independently associated with intracardiac thrombus (OR=2.39, P=0.027) after multivariable adjustment.
Conclusions:
- SHR is significantly associated with intracardiac thrombus missed by TTE in AIS patients.
- SHR may serve as a valuable biomarker for identifying patients who could benefit from TEE.
- Elevated SHR could aid in refining risk stratification and guiding the selective use of TEE in AIS.
Objective:
Transthoracic echocardiography (TTE) is widely used for cardiac evaluation in acute ischemic stroke (AIS), but it may miss intracardiac thrombi that can be detected by transesophageal echocardiography (TEE). The stress hyperglycemia ratio (SHR), which adjusts admission glucose for baseline glycemia, has emerged as a novel biomarker in cardiovascular disease. However, its association with intracardiac thrombus undetected by TTE in AIS remains unclear.
Method:
This retrospective study included 486 AIS patients who underwent TEE despite negative baseline TTE findings. Demographic, laboratory, and echocardiographic data were evaluated. Logistic regression and receiver operating characteristic (ROC) analysis were used to assess independent associations with intracardiac thrombus.
Results:
TEE detected thrombus in 64 patients (13.2%). Patients with thrombus had higher SHR (0.99 +- 0.42 vs. 0.84 +- 0.27, P < 0.001), glucose, C-reactive protein (CRP), and creatinine levels, and lower ejection fraction. In univariable analysis, SHR showed a strong association with intracardiac thrombus (odds ratio [OR] = 3.68, P < 0.001) and remained independently associated after multivariable adjustment (OR = 2.39, 95% confidence interval: 1.11-5.17, P = 0.027), along with CRP, paroxysmal atrial fibrillation, and male sex, while ejection fraction was inversely associated with thrombus presence. The model demonstrated good discriminative performance (area under the curve: 0.796).
Conclusion:
SHR is associated with intracardiac thrombus missed by TTE but detected by TEE in AIS. SHR may enhance risk stratification and help guide selective use of TEE.
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