1.Mortality and Risk Factors for Emphysematous Pyelonephritis in Korea: A Multicenter Retrospective Cohort Study
Seung-Kwon CHOI ; Jeong Woo LEE ; Seung Il JUNG ; Eu Chang HWANG ; Joongwon CHOI ; Woong Bin KIM ; Jung Sik HUH ; Jin Bong CHOI ; Yeonjoo KIM ; Jae Min CHUNG ; Ju-Hyun SHIN ; Jae Hung JUNG ; Hong CHUNG ; Sangrak BAE ; Tae-Hyoung KIM
Urogenital Tract Infection 2025;20(1):34-41
		                        		
		                        			 Purpose:
		                        			Emphysematous pyelonephritis (EPN) is a life-threatening disease requiring immediate treatment. This multicenter retrospective cohort study aimed to analyze the mortality rate and risk factors associated with EPN. 
		                        		
		                        			Materials and Methods:
		                        			Between January 2011 and February 2021, 217 patients diagnosed with EPN via computed tomography who visited 14 teaching hospitals were retrospectively analyzed. Clinical data, including age, sex, comorbidities, Huang and Tseng classification, hydronephrosis, acute kidney injury, blood and urine tests, surgical interventions, percutaneous drainage, and conservative treatments, were compared between the survival and death groups. Risk factors for mortality due to EPN were analyzed using univariate and multivariate methods. 
		                        		
		                        			Results:
		                        			The mean age of survivors and deceased patients was 67.8 and 69.0 years, respectively (p=0.136). The sex distribution (male/female) was 48/146 and 8/15, respectively (p=0.298). Of the 217 patients, 23 died, resulting in a mortality rate of 10.6%. In univariate analysis, the Huang and Tseng classification (p=0.004), platelet count (p=0.005), and acute kidney injury (p=0.007) were significantly associated with mortality from EPN. In multivariate analysis, only the Huang and Tseng classification (p=0.029) was identified as a risk factor. Mortality rates according to the Huang and Tseng classification were as follows: class I (5.88%), class II (7.50%), class IIIa (14.28%), class IIIb (25.00%), and class IV (23.07%). 
		                        		
		                        			Conclusions
		                        			EPN is associated with a high mortality rate. Among various clinical factors, the Huang and Tseng classification was the most significant indicator for predicting mortality. 
		                        		
		                        		
		                        		
		                        	
2.Mortality and Risk Factors for Emphysematous Pyelonephritis in Korea: A Multicenter Retrospective Cohort Study
Seung-Kwon CHOI ; Jeong Woo LEE ; Seung Il JUNG ; Eu Chang HWANG ; Joongwon CHOI ; Woong Bin KIM ; Jung Sik HUH ; Jin Bong CHOI ; Yeonjoo KIM ; Jae Min CHUNG ; Ju-Hyun SHIN ; Jae Hung JUNG ; Hong CHUNG ; Sangrak BAE ; Tae-Hyoung KIM
Urogenital Tract Infection 2025;20(1):34-41
		                        		
		                        			 Purpose:
		                        			Emphysematous pyelonephritis (EPN) is a life-threatening disease requiring immediate treatment. This multicenter retrospective cohort study aimed to analyze the mortality rate and risk factors associated with EPN. 
		                        		
		                        			Materials and Methods:
		                        			Between January 2011 and February 2021, 217 patients diagnosed with EPN via computed tomography who visited 14 teaching hospitals were retrospectively analyzed. Clinical data, including age, sex, comorbidities, Huang and Tseng classification, hydronephrosis, acute kidney injury, blood and urine tests, surgical interventions, percutaneous drainage, and conservative treatments, were compared between the survival and death groups. Risk factors for mortality due to EPN were analyzed using univariate and multivariate methods. 
		                        		
		                        			Results:
		                        			The mean age of survivors and deceased patients was 67.8 and 69.0 years, respectively (p=0.136). The sex distribution (male/female) was 48/146 and 8/15, respectively (p=0.298). Of the 217 patients, 23 died, resulting in a mortality rate of 10.6%. In univariate analysis, the Huang and Tseng classification (p=0.004), platelet count (p=0.005), and acute kidney injury (p=0.007) were significantly associated with mortality from EPN. In multivariate analysis, only the Huang and Tseng classification (p=0.029) was identified as a risk factor. Mortality rates according to the Huang and Tseng classification were as follows: class I (5.88%), class II (7.50%), class IIIa (14.28%), class IIIb (25.00%), and class IV (23.07%). 
		                        		
		                        			Conclusions
		                        			EPN is associated with a high mortality rate. Among various clinical factors, the Huang and Tseng classification was the most significant indicator for predicting mortality. 
		                        		
		                        		
		                        		
		                        	
3.Mortality and Risk Factors for Emphysematous Pyelonephritis in Korea: A Multicenter Retrospective Cohort Study
Seung-Kwon CHOI ; Jeong Woo LEE ; Seung Il JUNG ; Eu Chang HWANG ; Joongwon CHOI ; Woong Bin KIM ; Jung Sik HUH ; Jin Bong CHOI ; Yeonjoo KIM ; Jae Min CHUNG ; Ju-Hyun SHIN ; Jae Hung JUNG ; Hong CHUNG ; Sangrak BAE ; Tae-Hyoung KIM
Urogenital Tract Infection 2025;20(1):34-41
		                        		
		                        			 Purpose:
		                        			Emphysematous pyelonephritis (EPN) is a life-threatening disease requiring immediate treatment. This multicenter retrospective cohort study aimed to analyze the mortality rate and risk factors associated with EPN. 
		                        		
		                        			Materials and Methods:
		                        			Between January 2011 and February 2021, 217 patients diagnosed with EPN via computed tomography who visited 14 teaching hospitals were retrospectively analyzed. Clinical data, including age, sex, comorbidities, Huang and Tseng classification, hydronephrosis, acute kidney injury, blood and urine tests, surgical interventions, percutaneous drainage, and conservative treatments, were compared between the survival and death groups. Risk factors for mortality due to EPN were analyzed using univariate and multivariate methods. 
		                        		
		                        			Results:
		                        			The mean age of survivors and deceased patients was 67.8 and 69.0 years, respectively (p=0.136). The sex distribution (male/female) was 48/146 and 8/15, respectively (p=0.298). Of the 217 patients, 23 died, resulting in a mortality rate of 10.6%. In univariate analysis, the Huang and Tseng classification (p=0.004), platelet count (p=0.005), and acute kidney injury (p=0.007) were significantly associated with mortality from EPN. In multivariate analysis, only the Huang and Tseng classification (p=0.029) was identified as a risk factor. Mortality rates according to the Huang and Tseng classification were as follows: class I (5.88%), class II (7.50%), class IIIa (14.28%), class IIIb (25.00%), and class IV (23.07%). 
		                        		
		                        			Conclusions
		                        			EPN is associated with a high mortality rate. Among various clinical factors, the Huang and Tseng classification was the most significant indicator for predicting mortality. 
		                        		
		                        		
		                        		
		                        	
4.Mortality and Risk Factors for Emphysematous Pyelonephritis in Korea: A Multicenter Retrospective Cohort Study
Seung-Kwon CHOI ; Jeong Woo LEE ; Seung Il JUNG ; Eu Chang HWANG ; Joongwon CHOI ; Woong Bin KIM ; Jung Sik HUH ; Jin Bong CHOI ; Yeonjoo KIM ; Jae Min CHUNG ; Ju-Hyun SHIN ; Jae Hung JUNG ; Hong CHUNG ; Sangrak BAE ; Tae-Hyoung KIM
Urogenital Tract Infection 2025;20(1):34-41
		                        		
		                        			 Purpose:
		                        			Emphysematous pyelonephritis (EPN) is a life-threatening disease requiring immediate treatment. This multicenter retrospective cohort study aimed to analyze the mortality rate and risk factors associated with EPN. 
		                        		
		                        			Materials and Methods:
		                        			Between January 2011 and February 2021, 217 patients diagnosed with EPN via computed tomography who visited 14 teaching hospitals were retrospectively analyzed. Clinical data, including age, sex, comorbidities, Huang and Tseng classification, hydronephrosis, acute kidney injury, blood and urine tests, surgical interventions, percutaneous drainage, and conservative treatments, were compared between the survival and death groups. Risk factors for mortality due to EPN were analyzed using univariate and multivariate methods. 
		                        		
		                        			Results:
		                        			The mean age of survivors and deceased patients was 67.8 and 69.0 years, respectively (p=0.136). The sex distribution (male/female) was 48/146 and 8/15, respectively (p=0.298). Of the 217 patients, 23 died, resulting in a mortality rate of 10.6%. In univariate analysis, the Huang and Tseng classification (p=0.004), platelet count (p=0.005), and acute kidney injury (p=0.007) were significantly associated with mortality from EPN. In multivariate analysis, only the Huang and Tseng classification (p=0.029) was identified as a risk factor. Mortality rates according to the Huang and Tseng classification were as follows: class I (5.88%), class II (7.50%), class IIIa (14.28%), class IIIb (25.00%), and class IV (23.07%). 
		                        		
		                        			Conclusions
		                        			EPN is associated with a high mortality rate. Among various clinical factors, the Huang and Tseng classification was the most significant indicator for predicting mortality. 
		                        		
		                        		
		                        		
		                        	
5.Mortality and Risk Factors for Emphysematous Pyelonephritis in Korea: A Multicenter Retrospective Cohort Study
Seung-Kwon CHOI ; Jeong Woo LEE ; Seung Il JUNG ; Eu Chang HWANG ; Joongwon CHOI ; Woong Bin KIM ; Jung Sik HUH ; Jin Bong CHOI ; Yeonjoo KIM ; Jae Min CHUNG ; Ju-Hyun SHIN ; Jae Hung JUNG ; Hong CHUNG ; Sangrak BAE ; Tae-Hyoung KIM
Urogenital Tract Infection 2025;20(1):34-41
		                        		
		                        			 Purpose:
		                        			Emphysematous pyelonephritis (EPN) is a life-threatening disease requiring immediate treatment. This multicenter retrospective cohort study aimed to analyze the mortality rate and risk factors associated with EPN. 
		                        		
		                        			Materials and Methods:
		                        			Between January 2011 and February 2021, 217 patients diagnosed with EPN via computed tomography who visited 14 teaching hospitals were retrospectively analyzed. Clinical data, including age, sex, comorbidities, Huang and Tseng classification, hydronephrosis, acute kidney injury, blood and urine tests, surgical interventions, percutaneous drainage, and conservative treatments, were compared between the survival and death groups. Risk factors for mortality due to EPN were analyzed using univariate and multivariate methods. 
		                        		
		                        			Results:
		                        			The mean age of survivors and deceased patients was 67.8 and 69.0 years, respectively (p=0.136). The sex distribution (male/female) was 48/146 and 8/15, respectively (p=0.298). Of the 217 patients, 23 died, resulting in a mortality rate of 10.6%. In univariate analysis, the Huang and Tseng classification (p=0.004), platelet count (p=0.005), and acute kidney injury (p=0.007) were significantly associated with mortality from EPN. In multivariate analysis, only the Huang and Tseng classification (p=0.029) was identified as a risk factor. Mortality rates according to the Huang and Tseng classification were as follows: class I (5.88%), class II (7.50%), class IIIa (14.28%), class IIIb (25.00%), and class IV (23.07%). 
		                        		
		                        			Conclusions
		                        			EPN is associated with a high mortality rate. Among various clinical factors, the Huang and Tseng classification was the most significant indicator for predicting mortality. 
		                        		
		                        		
		                        		
		                        	
6.Preperitoneal pelvic packing for initial management of hemodynamically unstable pelvic fracture: a systematic review and meta-analysis
Junhyuk CHOI ; Minseo CHOI ; Sohee JI ; Yoonsuh CHO ; Myung Ha KIM ; Jae Sik CHUNG ; Young-Il ROH ; Jae Hung JUNG ; In Sik SHIN ; Kwangmin KIM
Journal of the Korean Society of Emergency Medicine 2024;35(4):275-300
		                        		
		                        			 Objective:
		                        			This study compared the effects of preperitoneal pelvic packing (PPP) versus resuscitation alone, angioembolization, PPP with pelvic stabilization, resuscitative endovascular balloon occlusion of the aorta (REBOA) with PPP, pelvic stabilization, and REBOA. 
		                        		
		                        			Methods:
		                        			A comprehensive search was performed using multiple databases, trial registries, grey literature, and conference proceedings from inception until March 10, 2022. The risk of bias in non-randomized studies of intervention (ROBINS-I) and ROB 2.0 tools were used to assess the risk of bias for non-randomized studies and randomized controlled trials, respectively. The certainty of evidence was rated using the GRADE approach. 
		                        		
		                        			Results:
		                        			Twenty-two studies, including 1,762 participants, were retrieved. Based on randomized controlled trials, there was a high uncertainty regarding the effects of PPP versus angioembolization on improving the mortality rate (risk ratio [RR]=0.74; 95% confidence interval [CI] 0.22-2.49; very low certainty of evidence) and improving the hemorrhagic mortality rate (RR=0.19; 95% CI 0.01-3.72; very low certainty of evidence). Based on non-randomized studies, there was a high uncertainty regarding the effects of PPP versus angioembolization on improving the mortality rate (RR=0.76; 95% CI 0.48-1.21; I2=54%; very low certainty of evidence), improving the hemorrhagic mortality rate (RR=0.66; 95% CI 0.18-2.46; I2=75%; very low certainty of evidence), and reducing the post procedural complications (RR=0.76; 95% CI 0.39-1.48; I2=66%; very low certainty of evidence). 
		                        		
		                        			Conclusion
		                        			There is high uncertainty regarding the effects of PPP compared to resuscitation only, angioembolization, PPP with pelvic stabilization, REBOA following PPP, pelvic stabilization, and REBOA. (Registration No. CRD42022311628) 
		                        		
		                        		
		                        		
		                        	
7.Phenolic Constituents and Their Anti-inflammatory Activity from Echinochloa utilis Grains.
Duc Hung NGUYEN ; Bing Tian ZHAO ; Duc Dat LE ; Ki Yun KIM ; Young Ho KIM ; Young Ho YOON ; Jee Youn KO ; Koan Sik WOO ; Mi Hee WOO
Natural Product Sciences 2016;22(2):140-145
		                        		
		                        			
		                        			Seven phenolic compounds including p-coumaric acid (1), 4-hydroxybenzoic acid (2), 4-hydroxybenzaldehyde (3), vanillic acid (4), luteolin (5), acacetin (6), and tricin (7), were isolated from the methylene chloride and ethyl acetate fractions of Echinochloa utilis grains. Compounds (1 - 4, 6) were isolated for the first time from this plant. These compounds were tested for inhibitory activities against LPS-induced NO production in RAW 264.7 cells. Compounds 5 and 6 displayed significant inhibitory effects, with IC₅₀ values of 27.9 ± 2.6 and 14.0 ± 1.1 µM, respectively. The results suggested that E. utilis ethanolic extract may be used as a potential source of anti-inflammatory agents and functional foods for the treatment of allergic diseases.
		                        		
		                        		
		                        		
		                        			Anti-Inflammatory Agents
		                        			;
		                        		
		                        			Echinochloa*
		                        			;
		                        		
		                        			Ethanol
		                        			;
		                        		
		                        			Functional Food
		                        			;
		                        		
		                        			Luteolin
		                        			;
		                        		
		                        			Methylene Chloride
		                        			;
		                        		
		                        			Phenol*
		                        			;
		                        		
		                        			Plants
		                        			;
		                        		
		                        			RAW 264.7 Cells
		                        			;
		                        		
		                        			Vanillic Acid
		                        			
		                        		
		                        	
8.Weaning food practice in children with iron deficiency anemia.
Joo Hee CHANG ; Woo Sik CHEONG ; Yong Hoon JUN ; Soon Ki KIM ; Hung Sik KIM ; Sang Kyu PARK ; Kyung Ha RYU ; Eun Sun YOO ; Chuhl Joo LYU ; Kun soo LEE ; Kwang Chul LEE ; Jae Young LIM ; Du Young CHOI ; Byung Kyu CHOE ; Eun Jin CHOI ; Bong Soon CHOI
Korean Journal of Pediatrics 2009;52(2):159-166
		                        		
		                        			
		                        			PURPOSE: Iron deficiency anemia (IDA) is one of the most common nutritional deficiencies in children on a weaning diet. We investigated weaning practices in infants and children, as well as their mothers' knowledge about weaning. METHODS: We investigated 129 children with IDA and 166 without IDA (aged 6-36 months) who had visited 10 university hospitals between March 2006 and July 2007. We investigated the hematologic values of both groups. A questionnaire on weaning was answered by the mothers of these children. RESULTS: The hematologic values in the IDA group showed a significant difference from those in the comparison group (P<0.05). Children who were solely breastfed until 6 months of age were 85%, 34% (P<0.05), and weaning was started by 6.3, 6.4 months, respectively (P>0.05). Rice gruel, boiled rice, and fruit juice accounted for approximately 8 0% of the starting foods in both groups (P>0.05). Only 40% of the children in the IDA group had a balanced diet within a month, versus 38% in the comparison group. In response to questions about the necessity of iron-fortified foods for breast-fed infants, less than 50% of mothers in both groups answered correctly. In the IDA group, 42% showed serum ferritin less than 10 ng/ mL, while 92% showed serum MCV less than 72 fL. CONCLUSION: In conclusion, collection of information on history should be thorough for feeding and selective examinations for IDA in high-risk groups. Considering the adaptation period, we suggest beginning children on a weaning diet at 45 months. In addition, we need to educate mothers on weaning practice, especially on the necessity of iron-fortified foods for breast-fed infants.
		                        		
		                        		
		                        		
		                        			Anemia, Iron-Deficiency
		                        			;
		                        		
		                        			Child
		                        			;
		                        		
		                        			Diet
		                        			;
		                        		
		                        			Ferritins
		                        			;
		                        		
		                        			Fruit
		                        			;
		                        		
		                        			Hospitals, University
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Infant
		                        			;
		                        		
		                        			Iron
		                        			;
		                        		
		                        			Malnutrition
		                        			;
		                        		
		                        			Mothers
		                        			;
		                        		
		                        			Surveys and Questionnaires
		                        			;
		                        		
		                        			Weaning
		                        			
		                        		
		                        	
9.Supplementary Effect of the High Dietary Fiber Rice on Blood Glucose in Diabetic KK Mice.
Sung Hyeon LEE ; Hong Ju PARK ; So Young CHO ; In Kyung JUNG ; Yong Sik CHO ; Tae Youg KIM ; Hung Goo HWANG ; Yeon Sook LEE
The Korean Journal of Nutrition 2004;37(2):75-80
		                        		
		                        			
		                        			This study was carried out to investigate the supplementary effects of Suwon 464, which has over two times of dietary fiber content compared with normal rice (Ilpum), on blood glucose in diabetic mice. We supplied 5 kinds of experimental diets (corn starch diet as a control (CO), Ilpum polished rice diet (IP), Ilpum brown rice diet (IB), polished rice diet (SP) and brown rice diet (SB) of Suwon 464) to diabetic mice for 8 weeks, after analyzing dietary fiber contents of 5 experimental diets. Diet intake, body weight and contents of blood glucose, hemoglobin A(1c) and insulin were measured. The dietary fiber contents in CO, IP, IB, SP, and SB diets were 1.0, 1.2, 1.4, 1.4, and 2.0% respectively. Body weight was lower in SB group than the other groups though there was no significant difference in diet intake among experimental groups. The concentration of blood glucose in diabetic mice was lower in SB group than the other groups during the supplementary period of experimental diets. The hemoglobin A(1c) and serum insulin levels were lower in SP and SB groups. These results suggested that the brown rice of Suwon 464 with high dietary fiber can control diabetes in diabetic mice by reducing the blood glucose and hemoglobin A(1c).
		                        		
		                        		
		                        		
		                        			Animals
		                        			;
		                        		
		                        			Blood Glucose*
		                        			;
		                        		
		                        			Body Weight
		                        			;
		                        		
		                        			Diet
		                        			;
		                        		
		                        			Dietary Fiber*
		                        			;
		                        		
		                        			Gyeonggi-do
		                        			;
		                        		
		                        			Insulin
		                        			;
		                        		
		                        			Mice*
		                        			;
		                        		
		                        			Starch
		                        			
		                        		
		                        	
10.The factors related to the screening of stomach cancer.
Chung Heon HAN ; Chang Woo RHEE ; Sung SUNWOO ; Young Sik KIM ; Kyung Soo CHEON ; Hyu Heon HOANG ; Tae Hung JEONG ; Tae Hee JEON
Journal of the Korean Academy of Family Medicine 2001;22(4):528-538
		                        		
		                        			
		                        			BACKGROUND: Stomach cancer is the most common cancer in korea. Stomach cancer has been the focus of screening for early detection. Few data are available regarding factors associated with participation in cancer screening examinations in general population. This study investigated associations of age, sex, residence, economic state, occupation, education years, marital status, health state, faith for stomach cancer screening with participation in screening tests for stomach cancer. METHODS: To identify the factors associated with participation in the stomach cancer screening examinations, 2133 persons above 40 years old were surveyed in 1998. RESULT: Stastically significant (P<0.05) strong predictors of regular stomach cancer screening were as follows: (1) urban residence, (2) high economic state, (3) possession on faith for regular screening of stomach cancer. CONCLUSION: Especially, rural residents should be educated about importance of stomach cancer screening.
		                        		
		                        		
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Early Detection of Cancer
		                        			;
		                        		
		                        			Education
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Korea
		                        			;
		                        		
		                        			Marital Status
		                        			;
		                        		
		                        			Mass Screening*
		                        			;
		                        		
		                        			Occupations
		                        			;
		                        		
		                        			Stomach Neoplasms*
		                        			;
		                        		
		                        			Stomach*
		                        			
		                        		
		                        	
            
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