1.Functional role of carcinoembryonic antigen in the intercelluar adhesion of human colorectal carcinoma cell lines.
Jin Chun KIM ; Ishii SEIICHI ; Thomas PETER ; Steele GLENN ; John M JESSUP
Journal of the Korean Cancer Association 1993;25(6):855-864
No abstract available.
Carcinoembryonic Antigen*
;
Cell Line*
;
Colorectal Neoplasms*
;
Humans*
2.Clinical significance of serum alanine aminotransferase and lifestyle intervention in children with nonalcoholic fatty liver disease.
Kyoung Ah KWON ; Peter CHUN ; Jae Hong PARK
Korean Journal of Pediatrics 2016;59(9):362-367
PURPOSE: This study aimed to investigate the clinical significance of serum alanine aminotransferase (ALT) levels in children with nonalcoholic fatty liver disease (NAFLD) and the effect of lifestyle intervention on NAFLD. METHODS: The clinical data of 86 children diagnosed with NAFLD were reviewed retrospectively. Forty-six patients belonged to the elevated ALT group and 40 to the normal ALT group. The clinical parameters of patients with NAFLD were also compared based on the status of ALT levels after lifestyle intervention. RESULTS: Patients with elevated ALT had significantly higher body mass index (BMI) scores than those with normal ALT (P<0.05). Of all the patients with elevated ALT, 89% exhibited moderate or severe degree of fatty change in the liver on ultrasonographic examination, whereas most patients with normal ALT exhibited mild or moderate degree changes. Liver biopsy was performed in 15 children with elevated ALT and all showed mild histological changes. Of all patients with elevated ALT, 49% achieved normal ALT levels after lifestyle intervention. Those with more severe histological changes tended to have continuously increasing ALT levels. There was no correlation between the normalization of posttreatment ALT level and BMI, as well as ultrasonographic findings at diagnosis. CONCLUSION: ALT elevation in NAFLD is highly associated with higher BMI scores and more severe degree of fatty changes on ultrasonographic examination. Lifestyle intervention can significantly improve ALT in children with NAFLD. The degree of histologic changes appears to be a predictor of the treatment response to NAFLD.
Alanine Transaminase*
;
Alanine*
;
Biopsy
;
Body Mass Index
;
Child*
;
Diagnosis
;
Humans
;
Life Style*
;
Liver
;
Non-alcoholic Fatty Liver Disease*
;
Retrospective Studies
3.A Rare Case of Scimitar Syndrome Accompanied with an Imperforate Anus in a Newborn.
Peter CHUN ; Hyoung Doo LEE ; Young Don KIM
Journal of the Korean Society of Neonatology 2011;18(2):404-408
Scimitar syndrome (SS) is a rare congenital anomaly characterized by hypoplasia of the right lung and partially anomalous pulmonary venous drainage to the inferior vena cava. The term scimitar derives from the shadow created by the anomalous pulmonary vein on chest X-ray that closely resembles that of a curved Turkish sword. It rarely presents as an isolated abnormality. Various cardiac and non-cardiac anomalies have been association with SS, such as right lung hypoplasia, dextroposition of the heart, hypoplasia of the right pulmonary artery, systemic arterial blood supply to the right lower lung from the infra-diaphragmatic aorta, and a secundum type of atrial septal defect. However, an imperforate anus has not been reported previously in association with SS. We describe the first case of infantile scimitar syndrome accompanied with an imperforate anus in a newborn who presented with tachypnea and right pulmonary atelectasis.
Anus, Imperforate
;
Aorta
;
Drainage
;
Heart
;
Heart Septal Defects, Atrial
;
Humans
;
Infant, Newborn
;
Lung
;
Pulmonary Artery
;
Pulmonary Atelectasis
;
Pulmonary Veins
;
Scimitar Syndrome
;
Tachypnea
;
Thorax
;
Vena Cava, Inferior
4.Gastric Hemangioma Treated with Argon Plasma Coagulation in a Newborn Infant.
Young Ah LEE ; Peter CHUN ; Eun Ha HWANG ; Yeoun Joo LEE ; Chang Won KIM ; Jae Hong PARK
Pediatric Gastroenterology, Hepatology & Nutrition 2017;20(2):134-137
Gastric hemangioma in the neonatal period is a very rare cause of upper gastrointestinal bleeding. We present a case of hemangioma limited to the gastric cavity in a 10-day-old infant. A huge, erythematous mass with bleeding was observed on the lesser curvature side of the upper part of the stomach. Surgical resection was ruled out because the location of the lesion was too close to the gastroesophageal junction. Medical treatment with intravenous H₂ blockers, octreotide, packed red blood cell infusions, local epinephrine injection at the lesion site, application of hemoclip, and gel-form embolization of the left gastric artery did not significantly alter the transfusion requirement. Hemostasis was achieved with endoscopic argon plasma coagulation (APC). After two sessions of APC, complete removal of the lesion was achieved. APC was a simple, safe and effective tool for hemostasis and the ablation of gastric hemangioma without significant complications.
Argon Plasma Coagulation*
;
Argon*
;
Arteries
;
Epinephrine
;
Erythrocytes
;
Esophagogastric Junction
;
Hemangioma*
;
Hemorrhage
;
Hemostasis
;
Humans
;
Infant
;
Infant, Newborn*
;
Octreotide
;
Stomach
5.Clinical Features and Extraintestinal Manifestations of Crohn Disease in Children.
Young Ah LEE ; Peter CHUN ; Eun Ha HWANG ; Sang Wook MUN ; Yeoun Joo LEE ; Jae Hong PARK
Pediatric Gastroenterology, Hepatology & Nutrition 2016;19(4):236-242
PURPOSE: The aim of this study was to investigate the clinical features and extraintestinal manifestations (EIMs) of Crohn disease (CD) in Korean pediatric patients. METHODS: The medical records of 73 children diagnosed with CD were retrospectively reviewed. Data regarding baseline demographic and clinical characteristics, including CD phenotype at diagnosis based on the Montreal classification, and clinical features and course of EIMs were investigated. RESULTS: Fifty-two (71.2%) of the patients were males. The mean age of the patients was 12.5 years. The mean follow-up period was 3.4 years. The disease location was ileal in 3 (4.1%) of the patients, colonic in 13 (17.8%), ileocolonic in 56 (76.7%). The clinical behavior was inflammatory in 62 (84.9%) of the patients, stricturing in 8 (11.0%), and penetrating in 3 (4.1%). Perianal abscesses or fistulas were found in 37 (50.7%) of the patients. EIMs observed during the study period were anal skin tag in 25 patients (34.2%), hypertransaminasemia in 20 (27.4%), peripheral arthritis in 2 (2.7%), erythema nodosum in 2 (2.7%), vulvitis in 1 (1.4%), uveitis in 1 (1.4%), and pulmonary thromboembolism in 1 (1.4%). CONCLUSION: Perianal diseases and manifestations were present in more than half of Korean pediatric CD patients at diagnosis. Inspection of the anus should be mandatory in Korean children with suspicious CD, as perianal fistulas, abscesses, and anal skin tags may be the first clue to the diagnosis of CD.
Abscess
;
Anal Canal
;
Arthritis
;
Child*
;
Classification
;
Colon
;
Crohn Disease*
;
Diagnosis
;
Erythema Nodosum
;
Fistula
;
Follow-Up Studies
;
Humans
;
Male
;
Medical Records
;
Phenotype
;
Pulmonary Embolism
;
Retrospective Studies
;
Skin
;
Uveitis
;
Vulvitis
6.Clinical Characteristics and Ultrasonographic Findings of Acute Bacterial Enterocolitis in Children.
Peter CHUN ; Taek Jin LIM ; Eun Ha HWANG ; Sang Wook MUN ; Yeoun Joo LEE ; Jae Hong PARK
Pediatric Gastroenterology, Hepatology & Nutrition 2017;20(2):107-113
PURPOSE: This study clarified the bacterial pathogens currently causing acute infectious enterocolitis (AIE) in children and evaluated the clinical characteristics and ultrasonographic findings according to the different pathogens. METHODS: Medical records regarding age, sex, clinical symptoms, laboratory data, identified enteropathogens, ultrasonographic findings, treatment, and outcome of 34 patients who were diagnosed with AIE via stool examination using multiplex polymerase chain reaction (PCR) or culture, were retrospectively reviewed. RESULTS: Twenty-four patients (70.6%) were male. The mean age of the patients was 8.5±6.2 (range, 1.1–17.1) years. Six bacterial pathogens were isolated: Salmonella species (spp.) (32.4%), Campylobacter spp. (20.6%), verotoxin-producing Escherichia coli (14.7%), Staphylococcus aureus (11.8%), Clostridium difficile (8.8%), and Shigella spp. (2.9%). Abdominal pain occurred in all patients regardless of pathogen. The patients infected with Salmonella were older than those infected with verotoxin-producing E. coli (p<0.05). C-reactive protein levels were higher in patients with Salmonella and Campylobacter infections than in those with verotoxin-producing E. coli infection (p<0.05), the other clinical and laboratory data were indistinguishable between pathogens. Ultrasonography demonstrated diverse involvement of bowel segments according to pathogen. Wall thickening of both the ileum and the entire colon was the most common lesion site regardless of pathogen. CONCLUSION: Various bacterial agents cause AIE and the symptoms are diverse symptoms, however, all most children recovered spontaneously. Use of multiplex PCR on stool samples warrants improvement of its sensitivity for diagnosis of enteropathogenic bacteria. Ultrasonographic examination is useful for diagnosis of AIE; it can also detect the disease extent and severity.
Abdominal Pain
;
Bacteria
;
C-Reactive Protein
;
Campylobacter
;
Campylobacter Infections
;
Child*
;
Clostridium difficile
;
Colon
;
Diagnosis
;
Enterocolitis*
;
Humans
;
Ileum
;
Male
;
Medical Records
;
Multiplex Polymerase Chain Reaction
;
Retrospective Studies
;
Salmonella
;
Shiga-Toxigenic Escherichia coli
;
Shigella
;
Staphylococcus aureus
;
Ultrasonography
7.Prevalence and Risk Factors for the Weight Loss during Hospitalization in Children: A Single Korean Children’s Hospital Experience.
Eun Ha HWANG ; Jae Hong PARK ; Peter CHUN ; Yeoun Joo LEE
Pediatric Gastroenterology, Hepatology & Nutrition 2016;19(4):269-275
PURPOSE: Undernutrition during hospitalization increases the risk of nosocomial infection and lengthens the disease courses. The aim of this study was to evaluate the risk factors of weight loss during hospitalization in children. METHODS: All the patients who were admitted in general wards between April and May 2014 were enrolled. Patients aged >18 years and discharged within 2 days were excluded. Weight loss during hospitalization was defined as a decrease in body weight of >2% in 8 hospital days or on the day of discharge. Patients who lost body weight during hospitalization were compared with patients who maintained their body weights. Significant parameters were evaluated by using the multivariate logistic regression analysis. RESULTS: We enrolled 602 patients, of whom 149 (24.8%) lost >2% of their body weight. Complaint of pain (p=0.004), admission to the surgical department (p=0.001), undergoing surgery (p=0.044), undergoing abdominal surgery (p=0.034), and nil per os (NPO) durations (p=0.003) were related to weight loss during hospitalization. The patients who had high weight-for-age tended to lose more body weight (p=0.001). Admission to the surgical department (odds ratio [OR], 1.668; 95% confidence interval [CI], 1.054-2.637; p=0.029) and long NPO durations (OR, 1.496; 95% CI, 1.102-2.031; p=0.010) were independent risk factors of weight loss during hospitalization. The patients with high weight-for-age tended to lose more weight during hospitalization (OR, 1.188; 95% CI, 1.029-1.371; p=0.019). CONCLUSION: Greater care in terms of nutrition should be taken for patients who are admitted in the surgical department and have prolonged duration of nothing by mouth.
Body Weight
;
Child*
;
Cross Infection
;
Hospitalization*
;
Humans
;
Inpatients
;
Korea
;
Logistic Models
;
Malnutrition
;
Mouth
;
Patients' Rooms
;
Prevalence*
;
Risk Factors*
;
Weight Loss*
8.Accuracy of an Interferon-gamma Release Assay to Detect Active Tuberculosis in Children: A Pilot Study.
Young Jin LEE ; Peter CHUN ; Ju Hee WE ; Su Eun PARK
Korean Journal of Pediatric Infectious Diseases 2011;18(1):48-53
PURPOSE: Early diagnosis of active tuberculosis (TB) in children is difficult. The widely used tuberculin skin test has low sensitivity and cross reactivity with non-tuberculous mycobacteria or Bacille Calmette-Guerin vaccination. Interferon gamma release assays have been shown good diagnostic accuracy for active in adults. But studies in children were limited. The purpose of this study was to examine the performance of enzyme-linked immunospot assay (ELISpot) as an initial test in the diagnosis of active tuberculosis in children. METHODS: In a hospital-based study, we prospectively examined the performance of ELISPot in 33 children suspected of active TB. TB was confirmed bacteriologically or histologically. RESULTS: Among 33 patients, 9 had active tuberculosis. When tested, they all had a positive test result from the ELISpot. The sensitivity and specificity of the assay were 100% (95% CI, 66.4-100%) and 95.8% (95% CI, 78.9-99.9%) respectively. CONCLUSION: ELISpot might be an useful and improved clinical diagnostic method for the detection of active TB in children.
Adult
;
Child
;
Early Diagnosis
;
Enzyme-Linked Immunospot Assay
;
Humans
;
Interferon-gamma
;
Interferon-gamma Release Tests
;
Pilot Projects
;
Prospective Studies
;
Sensitivity and Specificity
;
Skin Tests
;
Tuberculin
;
Tuberculosis
;
Vaccination
9.Analysis of neonatal sepsis in one neonatal intensive care unit for 6 years.
Peter CHUN ; Seom Gim KONG ; Shin Yun BYUN ; Su Eun PARK ; Hyung Du LEE
Korean Journal of Pediatrics 2010;53(4):495-502
PURPOSE: Sepsis is a significant cause of morbidity and mortality in the newborn, particularly in preterm. The objective of this study was to analyze the incidence rate, causative pathogens and clinical features of neonatal sepsis in one neonatal intensive care unit (NICU) for 6 years. METHODS: This study was retrospectively performed to review the clinical and laboratory characteristics including sex, gestational age, birth weight, Apgar score, length of hospitalization, length of total parenteral nutrition, presence of central venous catheter, underlying diseases, laboratory findings, microorganisms isolated from blood culture, complications and mortality in 175 patients between January 2003 and December 2008. RESULTS: 1) Sepsis was present in 175 of 3,747 infants for 6 years. There were more gram-positive organisms. 2) The gram-negatives were more prevalent in preterm. There were no significant differences of other clinical features between two groups. 3) Underlying diseases were found in 73.7%, and the most common disease was cardiovascular disease. The most common organisms of gram-positives and gram-negatives were methicillin resistant Staphylococcus aureus (MRSA) and Serratia marcescens. 4) There was statistically significant difference on platelet counts between two groups (P<0.05). 5) Complications were found in 18.3% and septic shock was the most common. MRSA was the most common pathogen in sepsis with complication. 6) The mortality rate was 7.4%. 7) There were differences in monthly blood stream infection/1,000 patient-days. CONCLUSION: The studies about the factors that can influence neonatal sepsis will contribute to decrease the infection rates in NICUs.
Apgar Score
;
Birth Weight
;
Cardiovascular Diseases
;
Central Venous Catheters
;
Gestational Age
;
Gram-Negative Bacteria
;
Gram-Positive Bacteria
;
Hospitalization
;
Humans
;
Incidence
;
Infant
;
Infant, Newborn
;
Intensive Care, Neonatal
;
Methicillin Resistance
;
Methicillin-Resistant Staphylococcus aureus
;
Parenteral Nutrition, Total
;
Platelet Count
;
Retrospective Studies
;
Rivers
;
Sepsis
;
Serratia marcescens
;
Shock, Septic
;
Staphylococcus aureus
10.A case of reactive arthritis after Salmonella enteritis in in a 12-year-old boy.
Peter CHUN ; Young Jin KIM ; Young Mi HAN ; Young Mi KIM
Korean Journal of Pediatrics 2011;54(7):313-315
Reactive arthritis comprises a subgroup within infection-associated arthritides in genetically susceptible hosts. Researchers and clinicians recognize two clinical forms of reactive arthritis which occurs after genitourinary tract infection and after gastrointestinal tract infection. Chlamydia infection has been implicated as the most common agent associated with post-venereal reactive arthritis. Studies have proposed Shigella infection, Salmonella infection, or Yersinia infection as the microorganisms responsible for the post-dysenteric form. The human leukocyte antigen (HLA)-B27 antigen is the best-known predisposing factor. We report a case of HLA-B27-associated reactive arthritis after Salmonella enteritis at Pusan National University hospital.
Arthritis
;
Arthritis, Reactive
;
Child
;
Chlamydia Infections
;
Enteritis
;
Gastrointestinal Tract
;
HLA-B27 Antigen
;
Humans
;
Leukocytes
;
Salmonella
;
Salmonella Infections
;
Shigella
;
Yersinia Infections