delayed neuropsychiatric sequelae
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mBio ◽  
2021 ◽  
Author(s):  
Meenakshi Bhaskar ◽  
Sriparna Mukherjee ◽  
Anirban Basu

Neurotropic viral infections are an increasingly common cause of immediate or delayed neuropsychiatric sequelae, cognitive impairment, and movement disorders or, in severe cases, death. Given the highest reported disability-adjusted life years and mortality rate worldwide, a better understanding of molecular mechanisms for underlying clinical manifestations like AFP will help in development of more effective tools for therapeutic solutions.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Shu-Chen Liao ◽  
Shih-Chieh Shao ◽  
Kun-Ju Yang ◽  
Chen-Chang Yang

AbstractTo assess real-world effectiveness of hyperbaric oxygen therapy (HBOT) on delayed neuropsychiatric sequelae (DNS) after carbon monoxide (CO) poisoning we conducted a retrospective review of patients with CO poisoning admitted to Linkou Chang-Gung Memorial Hospital, Taiwan’s largest medical center, during 2009–2015. We included patients developing DNS after CO poisoning and compared improvements in neuropsychiatric function, with and without HBOT, after 12 months post-DNS to understand differences in recovery rates. DNS improvement-associated factors were also evaluated. We used receiver operating characteristic (ROC) curve analysis to assess the role of time elapsed between DNS diagnosis and HBOT initiation in predicting DNS improvement. A total of 62 patients developed DNS, of whom 11 recovered while the rest did not. Possible factors predicting DNS improvement included receiving HBOT post-DNS (72.7% vs 25.5%; P = 0.006), and treatment with more than three HBOT sessions during acute stage CO poisoning (81.8% vs 27.5%; P = 0.003). The relevant area under the ROC curve was 0.789 (95% CI 0.603–0.974), and the best cut-off point was 3 days post-DNS diagnosis, with 87.5% sensitivity and 61.5% specificity. Early HBOT in patients who developed DNS after CO poisoning significantly improved their DNS symptoms, with treatment effects sustained for 1 year after DNS diagnosis.


2021 ◽  
pp. 096032712110434
Author(s):  
Sangun Nah ◽  
Sungwoo Choi ◽  
Gi Woon Kim ◽  
Ji Eun Moon ◽  
Young Hwan Lee ◽  
...  

Background Neuron-specific enolase (NSE) is released into serum when nerve cells are damaged, and the levels thereof are used to determine neurological prognosis in patients who have suffered cardiac arrest or stroke. Delayed neuropsychiatric sequelae (DNS), a major complication of carbon monoxide poisoning (COP), can be caused by inflammatory response which is a mechanism of neuronal injury in cardiac arrest and stroke. NSE is known as a predictor of neurological prognosis in ischemic brain injury after cardiac arrest, and it is also reported as a predictor of DNS in acute COP. When serum NSE is measured serially in cardiac arrest patients, the best time to predict neurological prognosis is known at 48–72 h, but there are no studies analyzing serial serum NSE in acute COP. Thus, we explored whether serum NSE levels measured three times at 24 h intervals after COP predicted the development of DNS. Methods This prospective observational study was conducted on patients treated for COP from May 2018 to April 2020 in a tertiary care hospital in Korea. Neuron-specific enolase levels were assessed 24, 48, and 72 h after presentation at hospital. We used logistic regression to explore the association between NSE levels and DNS development. Results The NSE level was highest at 48 h, and the difference between the DNS group and the non-DNS group was greatest on the same time point. On multivariable logistic regression analysis, the NSE level at 48 h of >20.98 ng/mL (odds ratio [OR], 3.570; 95% confidence interval [CI], 1.412–9.026; P = .007) and the initial Glasgow Coma Scale (GCS) score of <9 (OR, 4.559; 95% CI, 1.658–0.12.540; P = .003) was statistically significant for DNS development. Conclusion Early identification of those who will experience DNS in acute COP patients is clinically important for deciding treatment. In this study, we revealed that NSE level of >20.98 ng/mL at 48 h time point can be used as an independent predictor of DNS (OR, 3.570; 95% CI, 1.412–9.026; P = .007; AUC, 0.648).


Medicine ◽  
2021 ◽  
Vol 100 (20) ◽  
pp. e26032
Author(s):  
Sangun Nah ◽  
Sungwoo Choi ◽  
Sun-Uk Lee ◽  
Gi Woon Kim ◽  
Young Hwan Lee ◽  
...  

2021 ◽  
Vol 2021 ◽  
pp. 1-4
Author(s):  
Akira Monji ◽  
Hiroshi Tateishi ◽  
Toru Murakawa ◽  
Jun Matsushima ◽  
Yutaka Kunitake ◽  
...  

We herein report two cases with carbon monoxide- (CO-) induced delayed neuropsychiatric sequelae (DNS) successfully treated with hyperbaric oxygen therapy (HBOT) in attempt suicide by charcoal burning. The two patients with CO-induced DNS were successfully treated with a total of more than 100 sessions of HBOT. Frontal assessment battery (FAB) was useful to examine the effectiveness of HBOT objectively. In the future study, a large-randomized trial is required to establish the efficacy of HBOT for the treatment of DNS.


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