Charcoal burning is associated with a higher risk of delayed neurological sequelae after domestic carbon monoxide poisoning in South China: A retrospective cohort study - 21/09/22

Doi : 10.1016/j.ajem.2022.06.003

Shan Liu ^a, Yan Liu ^a, Chanjuan Yang ^a, Dedong Xie ^a, Xia Zhang ^b,^{^⁎}
^a The Second Affiliated Hospital, Department of Emergency, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
^b The Second Affiliated Hospital, Department of Medical Ultrasonics, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China

^⁎Corresponding author at: The Second Affiliated Hospital, Department of Emergency, Hengyang Medical School, University of South China, Jiefang Avenue, Zhengxiang District, 421001 Hengyang, Hunan, China.The Second Affiliated HospitalDepartment of EmergencyHengyang Medical SchoolUniversity of South ChinaJiefang Avenue, Zhengxiang DistrictHengyangHunan421001China

Abstract

Backgrounds

Delayed neurological sequelae (DNS) are a severe complication of carbon monoxide poisoning (COP) and high predisposing rates of disability and mortality, yet the relationship between exposure factors and DNS remains unknown. The aim was to investigate the association between domestic sources of COP and DNS.

Methods

Patients diagnosed with COP between December 2016 and November 2021 were included and divided into two groups according to their sources of poisoning and the endpoint outcome was analyzed by logistic regression before and after propensity score matching (PSM).

Results

Overall, medical data from 314 patients were analyzed. In multivariate logistic regression, advanced age (adjusted odds ratio (AOR): 1.028, 95% CI: 1.008–1.049, P = 0.007), longer duration of exposure to the first treatment of hyperbaric oxygen (HBO) (AOR: 1.081, 95% CI: 1.036–1.127, P = 0.001), and intoxication by charcoal burning (AOR: 3.24, 95% CI: 1.208–8.69, P = 0.019) were associated with a higher risk of developing DNS. After 1:1 PSM, the outcomes also revealed that charcoal burning intoxication (odds ratio (OR): 8.396, 95% CI: 3.342–21.095, P<0.001) was associated with greater odds of DNS.

Conclusions

This study indicates that domestic COP caused by charcoal burning is more likely to trigger DNS than gas-emitting heaters.

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Keywords : Carbon monoxide poisoning, Delayed neurological sequelae, Charcoal burning, Sources of domestic carbon monoxide poisoning

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Vol 60

P. 57-61 - octobre 2022 Retour au numéro

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Charcoal burning is associated with a higher risk of delayed neurological sequelae after domestic carbon monoxide poisoning in South China: A retrospective cohort study - 21/09/22

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