Abstract
An acute brain lesion (ABL) identified by brain magnetic resonance imaging (MRI) after acute carbon monoxide (CO) poisoning is a strong prognostic factor for the development of delayed neuropsychiatric syndrome (DNS). This study aimed to identify predictors of ABLs on MRI in patients with acute CO poisoning. This was a multicenter prospective registry-based observational study conducted at two tertiary hospitals. A total of 1,034 patients were included. Multivariable logistic regression analysis showed that loss of consciousness (LOC) (adjusted odds ratio [aOR] 2.68, 95% Confidence Interval [CI]: 1.49–5.06), Glasgow Coma Scale (GCS) score < 9 (aOR 2.41, 95% CI: 1.49–3.91), troponin-I (TnI) (aOR 1.22, 95% CI: 1.08–1.41), CO exposure duration (aOR 1.09, 95% CI: 1.05–1.13), and white blood cell (WBC) (aOR 1.05, 95% CI: 1.01–1.09) were independent predictors of ABLs on MRI. LOC, GCS score, TnI, CO exposure duration, and WBC count can be useful predictors of ABLs on MRI in patients with acute CO poisoning, helping clinicians decide the need for an MRI scan or transfer the patient to an appropriate institution for MRI or hyperbaric oxygen therapy.
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