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The Importance of H-FABP in Determining the Severity of Carbon Monoxide Poisoning
Ramazan Koylu1, Basar Cander, Zerrin Defne Dundar
1Konya Training and Research Hospital, Emergency Department, Konya, Turkey.
Insights
Heart-type fatty acid binding protein (H-FABP) effectively identifies early myocardial damage in carbon monoxide (CO) poisoning patients. Elevated H-FABP levels correlate with wall motion abnormalities, aiding in assessing poisoning severity.
Area of Science:
- Cardiology
- Toxicology
- Emergency Medicine
Background:
- Carbon monoxide (CO) poisoning is a significant public health concern, often leading to myocardial injury.
- Assessing cardiac damage in CO poisoning patients presenting to the emergency department requires sensitive biomarkers.
- Heart-type fatty acid binding protein (H-FABP) is a potential indicator of acute cardiac stress.
Purpose of the Study:
- To evaluate the utility of H-FABP in detecting myocardial damage in patients with moderate to severe CO poisoning.
- To compare H-FABP levels with cardiac troponin I and echocardiographic findings.
- To determine the temporal changes of H-FABP and troponin I in CO-poisoned individuals.
Main Methods:
- Prospective study enrolling 80 patients with severe acute CO intoxication.
- Serial measurements of serum H-FABP and cardiac troponin I at 0, 6, and 24 hours post-admission.
- Echocardiography to assess for myocardial wall motion abnormalities, categorizing patients into groups.
Main Results:
- On admission, 70% of patients had elevated serum H-FABP levels, and 36.3% had elevated troponin I.
- Patients with wall motion abnormalities showed significantly higher H-FABP levels at 6 and 24 hours (p < 0.01).
- Serum H-FABP levels decreased over time (p < 0.001), while troponin I levels initially increased then decreased.
Conclusions:
- Serum H-FABP is a valuable early marker for identifying myocardial damage in CO poisoning.
- H-FABP levels correlate with echocardiographic evidence of myocardial injury.
- This biomarker aids in the early assessment of cardiac involvement in carbon monoxide intoxication.
Background:
In this study, we aimed to investigate the importance of the use of heart-type fatty acid binding protein (H-FABP) in evaluating the myocardial damage in patients admitted to the emergency department with moderate to severe carbon monoxide (CO) poisoning.
Methods:
All patients admitted to the emergency department with severe acute CO intoxication were enrolled the study. The H-FABP and cardiac biomarker levels were assessed at 0, 6th and 24th hours. The patients were divided into groups as those with normal echocardiography findings and with wall motion abnormalities. The differences between the groups for these parameters were compared.
Results:
The mean age of 80 patients was 32.3 ± 12.9 years old. 42 of them were male. On admission, 29 (36.3%) had elevated serum troponin I levels and 56 (70.0%) had elevated serum H-FABP levels. At 6thhour, 4 (5.0%) of 80 patients had higher serum H-FABP levels and 23 (28.8%) of them had higher serum Troponin I levels than 0 hour. The patients with wall motion abnormality had significantly higher serum H-FABP levels compared to the patients with normal echocardiography findings at 6th and 24th hours (p = 0.001 and 0.009). While the serum COHb and H-FABP levels tended to decrease continuously in time (p < 0.001), the serum troponin I levels increased at 6th hour and then decreased at 24th hour (p = 0.017).
Conclusion:
The serum H-FABP levels are useful in identifying the myocardial damage in patients admitted to the emergency department with moderate to severe carbon monoxide poisoning at an early phase.
Keywords:
Carbon monoxide; Poisoning; H-FABP; Myocardial injury.
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