Clinical features of three children with severe COVID-19 encephalopathy and literature review
	    		
		   		
		   			
		   		
	    	
    	 
    	10.3760/cma.j.issn.1673-4912.2023.03.002
   		
        
        	
        		- VernacularTitle:三例儿童新型冠状病毒感染相关重症脑病并文献分析
 
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Tao ZHANG
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		Lijie WANG
			        		
			        		;
		        		
		        		
		        		
			        		Wei XU
			        		
			        		;
		        		
		        		
		        		
			        		Nan YANG
			        		
			        		;
		        		
		        		
		        		
			        		Liang PEI
			        		
			        		;
		        		
		        		
		        		
			        		Chunfeng LIU
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. 中国医科大学附属盛京医院儿科,沈阳 110004
			        		
		        		
	        		
        		 
        	
        	
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		SARS-CoV-2;
			        		
			        		
			        		
				        		Nervous system;
			        		
			        		
			        		
				        		Encephalopathy;
			        		
			        		
			        		
				        		Children
			        		
			        		
	        			
        			
        		
 
        	
            
            
            	- From:
	            		
	            			Chinese Pediatric Emergency Medicine
	            		
	            		 2023;30(3):166-170
	            	
            	
 
            
            
            	- CountryChina
 
            
            
            	- Language:Chinese
 
            
            
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		        	Abstract:
			       	
			       		
				        
				        	Objective:To analyze the clinical characteristics, diagnosis and treatment of 3 children with severe COVID-19 encephalopathy, aiming to improve the clinicians′ understanding of the disease.Methods:The clinical features, laboratory examinations, imaging data and diagnosis as well as treatment process of 3 cases of severe COVID-19 encephalopathy admitted to the Pediatric Intensive Care Unit of Shengjing Hospital of China Medical University from December 1, 2022 to December 31, 2022 were retrospectively analyzed.Results:Among the 3 patients, 2 were female, age was 2-11 years old, all of them had 2-3 days of medical history.All of them had clinical manifestations of high fever(≥40 ℃), convulsions and consciousness disorders, nucleic acid and antigen tests of SARS-CoV-2 were positive, and mycoplasma pneumonia IgM antibody was positive in 1 case.Within 24 hours after admission, the levels of white blood cells were basically normal, neutrophil fraction was dominant, and procalcitonin was significantly increased.Total T cells and NK cells in the blood of the three patients were significantly decreased, and the levels of blood ammonia, blood glucose and bilirubin were basically normal.During the early stage of the disease, the cell counts of the cerebrospinal fluid was normal in all three patients, the protein level was significantly increased, and there were new symmetrical lesions on head magnetic resonance imaging in 3 patients.After symptomatic treatment and immunotherapy including early use of hormone, human gamma globulin and plasma exchange, all patients were survived, but had different degrees of new dysfunction of the nervous system.Conclusion:Severe COVID-19 encephalopathy can occur in the acute phase of SARS-CoV-2 infection, mostly manifested as high fever, convulsions and severe disturbance of consciousness, combining with multiple organ dysfunction and irreversible nervous system damage.Early supportive treatment, brain protective treatment and immunotherapy are helpful to improve the prognosis of the patients.