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Clinical predictors of delayed neurological sequelae in charcoal-burning carbon monoxide poisoning
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Clinical predictors of delayed neurological sequelae in charcoal-burning carbon monoxide poisoning
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Clinical predictors of delayed neurological sequelae in charcoal-burning carbon monoxide poisoning
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Journal Article
Clinical predictors of delayed neurological sequelae in charcoal-burning carbon monoxide poisoning
2021
Overview
The main objective of the treatment of acute carbon monoxide (CO) poisoning is to prevent delayed neurological sequelae (DNS). However, today there is still no objective screening tool to identify patients at high risk of developing DNS. The aim of this study was to identify clinical factors that could predict DNS after acute charcoal-burning CO poisoning.
This prospective observational study was conducted from September 1, 2019 to August 31, 2020 in a single academic medical center. Patients older than 18 years of age suffering from charcoal-burning CO poisoning were included in the study. After acute recovery, patients were followed up for six weeks to investigate for DNS development. The clinical predictors of DNS were determined using a multivariate logistic regression model.
Of the 217 patients—113 males (52.1%), median age 37.0 (27.5–51.5) years—included, 49 (22.6%) developed DNS. The multivariate logistic regression analysis revealed the independent predictors of DNS as a lower initial Glasgow Coma Scale (GCS) score (adjusted odds ratio (AOR): 0.73, 95% confidence interval (CI): 0.62–0.87), a longer duration of CO exposure (AOR: 2.18, 95% CI: 1.65–2.88), and the presence of acute brain lesions with high signal intensity on diffusion-weighted imaging (AOR: 5.22, 95% CI: 1.50–18.08). The created multivariate regression model predicted DNS development with high accuracy (area under the curve: 0.93, 95% CI: 0.89–0.97).
A low initial GCS score, longer exposure to CO and abnormal findings on diffusion-weighted magnetic resonance imaging can assist in the early identification of patients at high risk of DNS development.
Publisher
Elsevier Inc,Elsevier Limited
Subject
