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Histological Quantification of Chronic Myocardial Infarct in Rats
Published on: December 11, 2016
The relationship between infarct volume and high sensitivity troponin I level in patients diagnosed with ischemic
Arif Aksu1, Akkan Avci2, Sadiye Yolcu1
1Department of Emergency Medicine, Adana City Research and Training Hospital, Health Science University, 01060, Adana, Turkey.
Insights
High-sensitivity troponin I (Hs-cTnI) may predict outcomes in acute ischemic stroke (AIS) patients. Elevated Hs-cTnI levels correlated with larger infarct volumes and higher mortality rates in this retrospective study.
Area of Science:
- Neurology
- Cardiology
- Biomarker Research
Background:
- Effective biomarkers for acute ischemic stroke (AIS) prognosis are needed.
- Current diagnostic and prognostic tools for AIS require enhancement.
Purpose of the Study:
- To evaluate the predictive value of high-sensitivity troponin I (Hs-cTnI) levels for AIS prognosis.
- To determine if Hs-cTnI can identify patients with poorer outcomes.
Main Methods:
- Retrospective observational study including 203 AIS patients (mean age 68.9).
- Patients categorized into two groups based on Hs-cTnI levels (cut-off 8.5 mg/dL).
- Infarct volume assessed via diffusion MRI; mortality data collected.
Main Results:
- Higher Hs-cTnI levels (group 2) were significantly associated with larger infarct volumes.
- Group 2 also exhibited a significantly higher mortality ratio (p=0.041).
- Hs-cTnI demonstrated potential as a prognostic indicator in AIS.
Conclusions:
- Hs-troponin I shows promise as an effective biomarker for predicting AIS prognosis.
- Further multicenter prospective studies are recommended to validate these findings and strengthen evidence.
Background:
Various biomarkers and clinical variables are used to determine the probability risk, diagnosis, and the prognosis of acute ischemic stroke, but effective markers are still warranted.
Aim:
We aimed to determine the effectiveness of Hs-cTnI levels to predict the prognosis of AIS.
Methods:
This study was planned as a retrospective observational study. Patients with available data and over 18 years old were included in the study. Diffusion magnetic resonance images were evaluated by a senior radiologist and the infarct size was calculated.
Results:
We included 110 (54.2%) males and 93 (45.8%) females; a total of 203 patients with a mean age of 68.9 were included in the present study. Patients were divided into two groups according to the cut-off level of Hs-troponin-I (group I: lower than 8.5 mg/dL; group 2: higher than 8.5 mg/dL). These two groups were compared for mortality and infarct volume. Infarct volume and the mortality ratio of the group 2 was significantly higher [p = 0.041, U = 4294.5, LV = 6.5 (IQR = 1.8-25.4)].
Conclusions:
Hs-troponin I may be an effective biomarker in predicting the prognosis of patients with acute ischemic stroke. Multicenter comprehensive prospective studies are warranted to obtain stronger results.
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