Factors Associated with Incidental Neuroimaging Abnormalities in New Primary Headache Patients
	    		
		   		
		   			
		   		
	    	
    	 
    	10.3988/jcn.2020.16.2.222
   		
        
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Byung-Su KIM
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		Soo-Kyoung KIM
			        		
			        		;
		        		
		        		
		        		
			        		Jae-Moon KIM
			        		
			        		;
		        		
		        		
		        		
			        		Heui-Soo MOON
			        		
			        		;
		        		
		        		
		        		
			        		Kwang-Yeol PARK
			        		
			        		;
		        		
		        		
		        		
			        		Jeong Wook PARK
			        		
			        		;
		        		
		        		
		        		
			        		Jong-Hee SOHN
			        		
			        		;
		        		
		        		
		        		
			        		Tae-Jin SONG
			        		
			        		;
		        		
		        		
		        		
			        		Min Kyung CHU
			        		
			        		;
		        		
		        		
		        		
			        		Myoung-Jin CHA
			        		
			        		;
		        		
		        		
		        		
			        		Byung-Kun KIM
			        		
			        		;
		        		
		        		
		        		
			        		Soo-Jin CHO
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. Department of Neurology, Bundang Jesaeng General Hospital, Daejin Medical Center, Seongnam, Korea.
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Original Article
 
        	
        	
            
            
            	- From:Journal of Clinical Neurology
	            		
	            		 2020;16(2):222-229
	            	
            	
 
            
            
            	- CountryRepublic of Korea
 
            
            
            	- Language:English
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	 Background:and PurposeDeciding whether or not to perform neuroimaging in primary headache is a dilemma for headache physicians. The aim of this study was to identify clinical predictors of incidental neuroimaging abnormalities in new patients with primary headache disorders. 
				        	
				        
				        	Methods:This cross-sectional study was based on a prospective multicenter headache registry, and it classified 1,627 consecutive first-visit headache patients according to the third edition (beta version) of the International Classification of Headache Disorders (ICHD-3β). Primary headache patients who underwent neuroimaging were finally enrolled in the analysis. Serious intracranial pathology was defined as serious neuroimaging abnormalities with a high degree of medical urgency. Univariable and multivariable logistic regression analyses were conducted to identify factors associated with incidental neuroimaging abnormalities. 
				        	
				        
				        	Results:Neuroimaging abnormalities were present in 170 (18.3%) of 927 eligible patients. In multivariable analysis, age ≥40 years [multivariable-adjusted odds ratio (aOR)=3.37, 95% CI=2.07–6.83], male sex (aOR=1.61, 95% CI=1.12–2.32), and age ≥50 years at headache onset (aOR=1.86, 95% CI=1.24–2.78) were associated with neuroimaging abnormalities. In univariable analyses, age ≥40 years was the only independent variable associated with serious neuroimaging abnormalities (OR=3.37, 95% CI=1.17–9.66), which were found in 34 patients (3.6%). These associations did not change after further adjustment for neuroimaging modality. 
				        	
				        
				        	Conclusions:Incidental neuroimaging abnormalities were common and varied in a primary headache diagnosis. A small proportion of the patients incidentally had serious neuroimaging abnormalities, and they were predicted by age ≥40 years. These findings can be used to guide the performing of neuroimaging in primary headache disorders.