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Original Article
Nutrition
Survey of Korean pediatrician’s perceptions of barriers to and improvements in breastfeeding
Seong Phil Bae, Woo Ryoung Lee, Won-Ho Hahn, Hye-Jung Shin, Young Min Ahn, Son Moon Shin, Yong Joo Kim, Ellen Ai-Rhan Kim, Youn Jeong Shin, Dae Yong Yi, Soon Min Lee, Juyoung Lee, Jin A Lee, Sung-Hoon Chung, Euiseok Jung, Eui Kyung Choi, Ju Sun Heo
Clin Exp Pediatr. 2022;65(11):540-546.   Published online July 29, 2022
Question: What barriers to breastfeeding do Korean pediatricians perceive?
Finding: Regardless of medical institution, breastfeeding counseling for parents is currently limited, and breastfeeding is commonly discontinued due to various maternal and neonatal factors.
Meaning: To promote breastfeeding, increasing pediatrician participation in breastfeeding counseling with the establishment of appropriate breastfeeding counseling fees and the expansion of practical and high-quality breastfeeding education for medical staff should be considered.
Original Article
Nutrition
Positive association of breastfeeding on respiratory syncytial virus infection in hospitalized infants: a multicenter retrospective study
Min Jeong Jang, Yong Joo Kim, Shinhye Hong, Jaeyoon Na, Jong Hee Hwang, Son Moon Shin, Young Min Ahn
Clin Exp Pediatr. 2020;63(4):135-140.   Published online November 12, 2019
Question: Human milk has stronger antiviral, antibacterial, and anti-inflammatory properties compared with formula milk. How dose breastfeeding affect respiratory syncytial virus infection in Korea?
Finding: Breastfed infants required less oxygen therapy and possible intensive care unit admission than artificial formulafed infants during respiratory syncytial virus infection.
Meaning: This protective role of breast milk on RSV severity can be a supporting evidence for promoting breastfeeding in Korea.
Guideline
Nutrition
Clinical practice guideline for the diagnosis and treatment of pediatric obesity: recommendations from the Committee on Pediatric Obesity of the Korean Society of Pediatric Gastroenterology Hepatology and Nutrition
Dae Yong Yi, Soon Chul Kim, Ji Hyuk Lee, Eun Hye Lee, Jae Young Kim, Yong Joo Kim, Ki Soo Kang, Jeana Hong, Jung Ok Shim, Yoon Lee, Ben Kang, Yeoun Joo Lee, Mi Jin Kim, Jin Soo Moon, Hong Koh, JeongAe You, Young-Sook Kwak, Hyunjung Lim, Hye Ran Yang
Clin Exp Pediatr. 2019;62(1):3-21.   Published online December 27, 2018
The Committee on Pediatric Obesity of the Korean Society of Pediatric Gastroenterology, Hepatology and Nutrition newly developed the first Korean Guideline on the Diagnosis and Treatment of Obesity in Children and Adolescents to deliver an evidence-based systematic approach to childhood obesity in South Korea. The following areas were systematically reviewed, especially on the basis of all available references published in...
Review Article
Gastroenterology
Nutritional concerns in pediatric inflammatory bowel disease
Yong Joo Kim
Clin Exp Pediatr. 2016;59(6):247-251.   Published online June 30, 2016

The pathophysiology and fundamental etiologic mechanism of inflammatory bowel disease (IBD) is not well understood even though therapeutic regimens and drugs are rapidly evolutionary. IBD has complicated connections with genetic, immunologic, gut microbial, environmental, and nutritional factors. It is not clearly well known to the physicians how to feed, what nutrients are more helpful, and what food to be avoided....

Review Article
General considerations and updates in pediatric gastrointestinal diagnostic endoscopy
Yong Joo Kim
Clin Exp Pediatr. 2010;53(9):817-823.   Published online September 13, 2010

Gastrointestinal and colonic endoscopic examinations have been performed in pediatric patients in Korea for 3 decades. Endoscopic procedures are complex and may be unsafe if special concerns are not considered. Many things have to be kept in mind before, during, and after the procedure. Gastrointestinal endoscopy is one of the most frequently performed procedure in children nowadays, Since the dimension...

Original Article
Current feeding practices and maternal nutritional knowledge on complementary feeding in Korea
Hye Won Yom, Jeong Wan Seo, Hyesook Park, Kwang Hae Choi, Ju Young Chang, Eell Ryoo, Hye Ran Yang, Jae Young Kim, Ji Hyun Seo, Yong Joo Kim, Kyung Rye Moon, Ki Soo Kang, Kie Young Park, Seong Soo Lee, Jeong Ok Shim
Clin Exp Pediatr. 2009;52(10):1090-1102.   Published online October 15, 2009
Purpose : To evaluate current feeding practices and maternal nutritional knowledge on complementary feeding. Methods:Mothers of babies aged 9-15 months who visited pediatric clinics of 14 general hospitals between September and December 2008 were asked to fill questionnaires. Data from 1,078 questionnaires were analyzed. Results : Complementary food was introduced at 4-7 months in 89% of babies. Home-made rice gruel was the...
Review Article
Recent concepts on vitamin D in children and adolescents
Hye Ran Yang, Jeong Wan Seo, Yong Joo Kim, Jae Young Kim, Eell Ryoo, Jae Geon Sim, Hye Won Yom, Ju Young Chang, Ji A Jung, Kwang Hae Choi
Clin Exp Pediatr. 2009;52(10):1082-1089.   Published online October 15, 2009
Vitamin D is an important fat-soluble vitamin that functions as a prohormone and affects bone mineralization and calcium homeostasis. Vitamin D deficiency causesboth musculoskeletal manifestations, including rickets, and extra-musculoskeletal symptoms. Because vitamin D is naturally present in only some foods, intake of daily foods cannot meet the dietary reference intake for vitamin D. Sunlight is the main source of vitamin...
Erratum
Assessment of modifiable lifestyle factors for obese children and adolescents through questionnaires
Jeong Wan Seo, Ji A Jung, Hye Sook Park, Jae Sung Ko, Yong Joo Kim, Jae Young Kim, Eell Ryoo, Sun Hwan Bae, Jae Geon Sim, Hye Ran Yang, Byung Ho Choe, Ky Young Cho
Clin Exp Pediatr. 2008;51(6):576-583.   Published online June 15, 2008
Purpose : The identification of specific behaviors conducive to overeating or inactivity is the cornerstone of obesity management. The Committee on Nutrition of the Korean Pediatric Society developed parent and self-reporting questionnaires about eating behavior and physical activity in 2006. The aim of this study was to evaluate the usefulness of the questionnaires in assessing modifiable lifestyle factors related to...
Original Article
Genotype of rotavirus isolated from patients with rotaviral enteritis and neurological complications
Jae Hyung Choi, Jung Mi Kim, Yong Joo Kim, Jae Won Oh, Chang Lyul Kim, Myung Kul Yum, In Joon Sul, Jung Oak Kang
Clin Exp Pediatr. 2006;49(5):513-518.   Published online May 15, 2006
Purpose : This study was undertaken to determine the differences in genotypes of rotavirus and their incidence between patients with acute rotaviral enteritis who suffered neurologic complications and those who did not suffer neurologic complications. Methods : Among the 82 patients with rotaviral enteritis whose genotype was analyzed, 71 patients were not associated with neurologic complications(neurology(-) group), and eleven patients were...
Case Report
A Case of Congenital Laryngeal Atresia with Single Umbilical Artery Who Required a Tracheotomy
Ho Sung Wi, Hey Sung Baek, Jae Won Oh, Myung-Kul Yum, Yong Joo Kim, Soo Jee Moon, Kyung Tae, Chang-Ryul Kim
Clin Exp Pediatr. 2005;48(5):557-560.   Published online May 15, 2005
Congenital laryngeal atresia is a rare cause of airway obstruction that is almost always lethal within a few minutes after birth. Therefore congenital laryngeal atresia should be diagnosed in the prenatal period. If not, it should be considered in newborn infant with life-threatening symptoms at birth such as cyanosis and dyspnea that need emergent procedures like a tracheotomy. We report...
Original Article
Clinical Evaluation and Diagnosis of Children with Chest Pain
Su A Shin, Yong Joo Kim, Jae Whan Lee, Nam Su Kim, Soo Ji Moon
Clin Exp Pediatr. 2003;46(12):1248-1252.   Published online December 15, 2003
Purpose : Chest pain in the pediatric population is not rare and mostly benign. Causes of chest pain are diverse, and differential diagnosis is not easy. Chest pain in children is less likely to be cardiac in origin. Furthermore, chest pain in the pediatric population is rarely associated with life-threatening disease. This study was designed to evaluate children with chest...
Case Report
A Case of Sandifer Syndrome
Mira Lee, Soo Hyun Kim, Yong Joo Kim, In Joon Seol
Clin Exp Pediatr. 2003;46(10):1036-1039.   Published online October 15, 2003
Sandifer syndrome is a rare manifestation of gastroesophageal reflux in children, occurring in association with abnormal movement of the head and neck and recurrent episodes of seizure after feeding. This syndrome may be misdiagnosed as infantile seizure and musculoskeletal disorder and may be associated with failure to thrive, anemia, aspiration pneumonia, and esophagitis. In this paper, Sandifer syndrome in a...
Original Article
A Follow-up Survey of Mothers' Antenatal Breast-feeding Plans
Hae Soon Kim, Jeong Wan Seo, Yong Joo Kim, Kee Hyoung Lee, Jae Young Kim, Jae Sung Ko, Sun Hwan Bae, Hye Sook Park
Clin Exp Pediatr. 2003;46(7):635-641.   Published online July 15, 2003
Purpose : To investigate the success rate and factors that influence breast-feeding among women having antenatal breast-feeding plans. Methods : Questionnaires included items on success in breast-feeding, reasons for failure and perinatal factors. It was done by telephone calls to 152 randomly selected women having antenatal breast-feeding plans at 4 months after delivery. The questionnaires were analysed by bivariate χ2-...
Case Report
Stenosis of Individual Pulmonary Veins
Mira Lee, Kil Soon Choi, Nam Su Kim, Myung Kul Yum, Yong Joo Kim, In Jun Sul
Clin Exp Pediatr. 2003;46(6):610-614.   Published online June 15, 2003
Pulmonary hypertension may be associated with variable conditions such as the hyperkinetic state or pulmonary vascular obstruction. In these, stenosis of the individual pulmonary veins without any cardiac or vascular malformation is very rare. We experienced stenosis of individual pulmonary veins in a 10 months old boy who was admitted with recurrent dyspnea and cyanosis and then underwent angiogram and...
Original Article
Henoch-Scholein Purpura Presenting with Acute Abdominal Pain Preceding Skin Rash : Review of 23 Cases
Ju Young Chang, Yong Joo Kim, Kyo Sun Kim, Hee-Ju Kim, Jeong Kee Seo
Clin Exp Pediatr. 2003;46(6):576-584.   Published online June 15, 2003
Purpose : For the early diagnosis of Henoch-Schonlein purpura(HSP) presenting with acute abdominal pain preceding skin rash. Methods : The clinical, endoscopic and radiological records of 23 cases of HSP, presenting with gastrointestinal symptoms preceding skin rash were reviewed. Results : The intervals from the onset of abdominal pain to the development of the skin rash were one day to 30 days(median...
Experimental Study for the Teratogenic Effect of Gamma-ray on the Heart of Chick Embryo
Yong Whan Jo, Nam Su Kim, Sung Yup Moon, Myeng Gul Yum, Sung Hoon Kim, Ha Chung Chun, Yong Joo Kim, Hahng Lee
Clin Exp Pediatr. 2003;46(6):554-560.   Published online June 15, 2003
Purpose : To investigate the teratogenic effect of gamma-ray on the heart of chick embryo. Methods : 50 rad, 100 rad, 150 rad, 200 rad, 250 rad, and 300 rad of gamma-ray were used to irradiate three days old chick embryos. The control group was not irradiated. After three weeks, the embryos were sacrificed and examined for cardiovascular malformation. Results :...
Medical Lecture Course
Trophic Factors of Gastrointestinal Tract
Yong Joo Kim
Clin Exp Pediatr. 2003;46(1):6-10.   Published online January 15, 2003
Original Article
A Survey on the Understanding of Breast-feeding in Pregnant Woman
Jeong Wan Seo, Yong Joo Kim, Kee Hyoung Lee, Jae Young Kim, Jay G Sim, Hae Soon Kim, Jae Sung Ko, Sun Hwan Bae, Hye Sook Park, Beom Soo Park
Clin Exp Pediatr. 2002;45(5):575-587.   Published online May 15, 2002
Purpose : To investigate the understanding of breast-feeding in pregnant woman and the proper way of encouraging breast-feeding. Methods : Each questionnaire included items about demographic characteristics and the understanding of breast-feeding. The questionnaires were filled up by pregnant women visiting obstetric clinics in Seoul and its vicinities, Busan, Choongjoo and Chungjoo from July 2001 to August 2001. One thousand, two...
Teratogenic Effect of Dopamine on the Embryonic Chick Heart
Bon-Seok Koo, Nam Su Kim, Yong Joo Kim, Sung Yup Moon, Hang Lee
Clin Exp Pediatr. 2000;43(7):913-919.   Published online July 15, 2000
Purpose : To investigate the teratogenic potential of dopamine using a topical method of application to the developing Korean native chick embryo. Methods : A 5μg(0.05cc) of dopamine was applied to a 3-days-old chick embryo and the same amount of saline solution was applied as control. The embryo was then returned to the incubator and monitored. After 3 weeks the embryo was sacrificed and...
Clinical and Pathologic Features of Nodular Duodenitis in Children
Heon Sang Kim, Jin Hoon Chun, Yong Joo Kim, Se Jin Chang, Eun Kyung Hong
Clin Exp Pediatr. 2000;43(5):667-673.   Published online May 15, 2000
Purpose : Nodular duodenitis is defined as two or more erythematous nodules in the duodenum, with surrounding inflammation and with or without apical erosions. But the clinical features and natural history of nodular duodenitis remain largely undefined, therefore we examined clinical, endoscopic and pathologic features of nodular duodenitis in children to find about its natural history, relationship between endoscopic and...
Gastrointestinal Disease in Children with Iron Deficiency Anemia
Yong Joo Kim, Sung Kyun Park, Ho Joon Lim, Hahang Lee
Clin Exp Pediatr. 1999;42(5):697-703.   Published online May 15, 1999
Purpose : The authors performed this study to find out the associated GI disease and H. pylori infection in children with iron-deficiency anemia(IDA). Methods : Twenty-six children older than 2 years with IDA and no history of insufficient iron intake were investigated from 1994 to 1998. Gastrofiberoscopic examination and biopsy and rapid urease test were performed with serum H. pylori IgG....
Erratum
Change in Nutritional Status of Elementary School Children
Sung Kyun Park, Yong Joo Kim, Jeh Hoon Shin, Hahng Lee
Accepted January 1, 1970  
Purpose : The purpose of this study is to compare the present nutritional status with that of previous surveys done in Korea and other advance countries. Methods : We measured the arm circumference and triceps skinfold thickness of 1,009 students of Hanyang Elementary School. We analyzed the arm muscle area and arm fat area. We analyzed the lomgitudinal height and...
Case Report
A Case of Distal Ulcerative Colitis Improved by Budesonide Enemas
Yong Joo Kim, Kwang Seung Shin, Nam Su Kim, Hahng Lee
Clin Exp Pediatr. 1998;41(11):1610-1613.   Published online November 15, 1998
A ten-year-old boy presented with chronic diarrhea and rectal bleeding was studied. Colonoscopic and pathologic diagnosis was distal ulcerative colitis in the sigmoid colon and rectum. Budesonide retention enema(2mg/100ml) was performed every night for 8 weeks. His clinical symptoms, the follow-up colonoscopic and pathologic findings improved in the third week of treatment. His weight did not change and Cushing syndrome...
A Case of Choledochal Cyst Type IVa Complicated by Multiple Choledocholithiasis and Recurrent Cholangitis : Therapeutic Endoscopic Retrograde Cholangiopancreatography and Endoscopic Nasobiliary Drainage
Yong Joo Kim, Eon Woo Shin, Soo Jung Choi, Ho Soon Choi, Jeh Hoon Shin
Clin Exp Pediatr. 1998;41(1):115-119.   Published online January 15, 1998
A 5-year-old male patient was admitted due to fever, and right upper abdominal pain for 2 weeks. He showed severe right upper quadrant tenderness on palpation, hepatomegaly 5 cm below the right costal margin, no mass, and no splenomegaly. On biochemical studies, ALT was 380IU/ml, AST 462IU/ml, alkaline phosphatase 1,069IU/ml, γGTP 239IU/ml, and total bilirubin 2.1mg/dl. Endoscopic retrograde cholangiopancreatography (ERCP) showed cylindrical dilatations of...
Original Article
Recurrent Abdominal Pains:A Field Survey of 1,783 School Children in Seoul
Yong Hwan Cho, Byung Duk Seo, Yong Joo Kim, Nam Su Kim, Hahng Lee
Clin Exp Pediatr. 1997;40(2):199-208.   Published online February 15, 1997
Purpose : We investigated the occurrence rate of recurrent abdominal pain(RAP) in general population of elementary school children, accompanied symptoms, symptomaggravating factors such as emotional stresses, food and personality characters, which time of day the pain develops and whether they visited hospital for RAP. Methods : From 1995. 4. 27. to 1995. 5. 12. questionnaires were given to the parents of 1,783...
Case Report
A Case of Esophageal Superficial Squamous Cell Papilloma Complicated by Esophageal Ulcer and Bleeding in aChild
Yong Joo Kim
Clin Exp Pediatr. 1996;39(8):1158-1161.   Published online August 15, 1996
Esophageal squamous cell papilloma(ESP) is a benign tumor, and known to be very rare. Its symptoms varies, so this disease is usually found incidentally during gastrointestinal endoscopic procedure. Few pediatric cases of ESP with ulcer and bleeding were reported worldwide. Authors experienced and treated a case of huge esophageal ulcer and bleeding complicating ESP in a 8-year-old girl who had history of frequent vomiting...
A Case of Non-IgE-mediated Serosal Eosinophilic Gastroenteritis in a Child with Chronic Asthma
Yong Joo Kim, Ha Baik Lee, Hahng Lee, Eun Kyeong Hong, Hyun Chul Rhim
Clin Exp Pediatr. 1995;38(12):1694-1700.   Published online December 15, 1995
Eosinophilic gastroenteritis(EG) is a chronic disorder in which edsinophils constitute the predominant cell type in the inflammatory infiltrates of the gastrointestinaHGD tract. This disease was first described by Kaiiser in 1937. The clinical symptoms and signs are variable according to the extent of the eosinophilic infiltration(diffuse versus cir¡ⓒ cumscribed) and the depth of the eosinophilic reaction (mucosal, muscular, serosal). Some...
Original Article
Cricopharyngeal Incoordination in Infancy
Yong Joo Kim, Jeong Kee Seo
Clin Exp Pediatr. 1994;37(6):752-758.   Published online June 15, 1994
Cricopharyngeal incoordination of infancy is a rare disease, characterized by difficult swallowing soon after birth. Regurgitation, frequent choking and aspiration with deglutition, recurrent aspiration pneumonia, and to-and-fro movement of the contrast medium in the posterior pharynx on upper esophageal cineroentgenography. Clinical investigation was performed in the infants who were admitted due to difficult swallowing, reguritation, and recurrent pneumonia from March 1,...
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