Risk Factors of Postoperative Pneumonia after Lung Cancer Surgery.
	    		
		   		
		   			
		   		
	    	
    	 
    	10.3346/jkms.2011.26.8.979
   		
        
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Ji Yeon LEE
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		Sang Man JIN
			        		
			        		;
		        		
		        		
		        		
			        		Chang Hoon LEE
			        		
			        		;
		        		
		        		
		        		
			        		Byoung Jun LEE
			        		
			        		;
		        		
		        		
		        		
			        		Chang Hyun KANG
			        		
			        		;
		        		
		        		
		        		
			        		Jae Joon YIM
			        		
			        		;
		        		
		        		
		        		
			        		Young Tae KIM
			        		
			        		;
		        		
		        		
		        		
			        		Seok Chul YANG
			        		
			        		;
		        		
		        		
		        		
			        		Chul Gyu YOO
			        		
			        		;
		        		
		        		
		        		
			        		Sung Koo HAN
			        		
			        		;
		        		
		        		
		        		
			        		Joo Hyun KIM
			        		
			        		;
		        		
		        		
		        		
			        		Young Soo SHIM
			        		
			        		;
		        		
		        		
		        		
			        		Young Whan KIM
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine and Lung Institute, Seoul National University College of Medicine, Seoul, Korea. ywkim@snu.ac.kr
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Original Article
 
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		Complications;
			        		
			        		
			        		
				        		Lung Neoplasms;
			        		
			        		
			        		
				        		Pneumonia;
			        		
			        		
			        		
				        		Risk Factors;
			        		
			        		
			        		
				        		Surgery
			        		
			        		
	        			
        			
        		
 
        	
            
            	- MeSH:
            	
	        			
	        				
	        				
				        		
					        		Adult;
				        		
			        		
				        		
					        		Age Factors;
				        		
			        		
				        		
					        		Aged;
				        		
			        		
				        		
					        		Aged, 80 and over;
				        		
			        		
				        		
					        		C-Reactive Protein/analysis;
				        		
			        		
				        		
					        		Carbon Monoxide/metabolism;
				        		
			        		
				        		
					        		Erythrocyte Transfusion;
				        		
			        		
				        		
					        		Female;
				        		
			        		
				        		
					        		Forced Expiratory Volume;
				        		
			        		
				        		
					        		Hospital Mortality;
				        		
			        		
				        		
					        		Humans;
				        		
			        		
				        		
					        		Incidence;
				        		
			        		
				        		
					        		Logistic Models;
				        		
			        		
				        		
					        		Lung Neoplasms/pathology/*surgery;
				        		
			        		
				        		
					        		Male;
				        		
			        		
				        		
					        		Middle Aged;
				        		
			        		
				        		
					        		Neoplasm Staging;
				        		
			        		
				        		
					        		Odds Ratio;
				        		
			        		
				        		
					        		Pneumonia/epidemiology/*etiology/mortality;
				        		
			        		
				        		
					        		*Postoperative Complications;
				        		
			        		
				        		
					        		Retrospective Studies;
				        		
			        		
				        		
					        		Risk Factors;
				        		
			        		
				        		
					        		Vital Capacity
				        		
			        		
	        			
	        			
            	
            	
 
            
            
            	- From:Journal of Korean Medical Science
	            		
	            		 2011;26(8):979-984
	            	
            	
 
            
            
            	- CountryRepublic of Korea
 
            
            
            	- Language:English
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	The purpose of this study was to investigate risk factors of postoperative pneumonia (POP) after lung cancer surgery. The 417 lung cancer patients who underwent surgical resection in a tertiary referral hospital were included. Clinical, radiological and laboratory data were reviewed retrospectively. Male and female ratio was 267:150 (median age, 65 yr). The incidence of POP was 6.2% (26 of 417) and in-hospital mortality was 27% among those patients. By univariate analysis, age > or = 70 yr (P < 0.001), male sex (P = 0.002), ever-smoker (P < 0.001), anesthesia time > or = 4.2 hr (P = 0.043), intraoperative red blood cells (RBC) transfusion (P = 0.004), presence of postoperative complications other than pneumonia (P = 0.020), forced expiratory volume in 1 second/forced vital capacity (FEV1/FVC) < 70% (P = 0.002), diffusing capacity of the lung for carbon monoxide < 80% predicted (P = 0.015) and preoperative levels of serum C-reactive protein > or = 0.15 mg/dL (P = 0.001) were related with risk of POP. Multivariate analysis showed that age > or = 70 yr (OR = 3.563, P = 0.014), intraoperative RBC transfusion (OR = 4.669, P = 0.033), the presence of postoperative complications other than pneumonia (OR = 3.032, P = 0.046), and FEV1/FVC < 70% (OR = 3.898, P = 0.011) were independent risk factors of POP. In conclusion, patients with advanced age, intraoperative RBC transfusion, postoperative complications other than pneumonia and a decreased FEV1/FVC ratio have a higher risk for pneumonia after lung cancer surgery.