1.Clinical Study on Foreign body Aspiration and Aspiration Pneumonia.
Dong Soo KIM ; Ki Choon KIM ; Ki Young LEE ; Duck Jin YUN
Journal of the Korean Pediatric Society 1981;24(4):343-351
No abstract available.
Foreign Bodies*
;
Pneumonia, Aspiration*
2.Femoral Head and Neck Fractures developed in Avascular Necrosis of the Femoral Head.
Hyung Ku YOON ; Duck Yun CHO ; Soo Hong HAN ; Yong Sub HAN ; Ki Sik NAM
Journal of the Korean Hip Society 2006;18(1):79-83
Femoral head and neck fractures during the course of avascular necrosis are rare with only few reports in the English literature. Moreover, there are very few reports on an analysis of the patterns of these fractures. Four cases of femoral head fracture caused by minor trauma, which were quite different from the crescent fractures during the course of avascular necrosis were analyzed in regard to the underlying disease, causes, sites, types, directions, pattern of fractures and the injury mechanism of the fractures. The results are reported with special regard to the pattern of the stress fracture of the femoral head and neck during the course of avascular necrosis.
Fractures, Stress
;
Head*
;
Neck*
;
Necrosis*
3.Clinical Characteristics and Renal Outcomes of Acute Focal Bacterial Nephritis in Children.
Dong Ki LEE ; Duck Geun KWON ; Yun Ju LIM ; Yun Hye SHIN ; Ki Soo PAI ; Suk Nam YUN
Journal of the Korean Society of Pediatric Nephrology 2004;8(2):229-238
PURPOSE: This study was performed to elucidate the clinical pictures of acute focal bacterial nephritis(nephronia) in children. METHODS: We reviewed 9 children with nephronia diagnosed by ultrasonography or computed tomography of kidneys from September 1994 to August 2004. RESULTS: The overall male to female ratio was 2:1, and the age distribution ranged from 0.1 to 6 years(mean 2.8+/-2.2). The cardinal symptoms were fever, chills, abdominal pain and dysuria/frequency. The initial leukocyte count was 21,000+/-5,600/uL; ESR, 60+/-23 mm/hr; CRP, 17+/-10 mg/dl. Pyuria was noted in every patient and persisted for 10.5+/-7.8 days after antimicrobial treatment. Abdominal sonography demonstrated focal lesion of ill-defined margin and low echogenicity in 5 of 9 patients(55.6%), while computed tomography revealed nonenhancing low density area in all patients(100%). Three of 9 patients(33.3%) had vesicoureteral reflux, greater than grade III. The initial (99m)Tc-DMSA scan showed one or multiple cortical defects in every patient, and improvements were noted in 2(33.3%) of 6 patients who received follow up scan after 4 months. Intravenous antibiotics was given in every patient under admission. Total febrile period was 11.8+/-6.3 days(pre-admission, 4.0+/-3.0; post-admission, 7.8+/-5.5 days) and the patients needed hospitalization for 17.2+/-8.1 days. CONCLUSION: For the early diagnosis of 'acute focal bacterial nephritis' we should perform renal computed tomography first rather than ultrasonography, when the child has toxic symptoms and severe inflammatory responses in blood and urine.
Abdominal Pain
;
Age Distribution
;
Anti-Bacterial Agents
;
Child*
;
Chills
;
Early Diagnosis
;
Female
;
Fever
;
Follow-Up Studies
;
Hospitalization
;
Humans
;
Kidney
;
Leukocyte Count
;
Male
;
Nephritis*
;
Pyuria
;
Ultrasonography
;
Vesico-Ureteral Reflux
4.The risk factors and prognosis associated with neonatal pulmonary hemorrhage.
Su Jin PARK ; Ki Tae YUN ; Won Duck KIM ; Sang Geel LEE
Korean Journal of Pediatrics 2010;53(4):503-509
PURPOSE: Although neonatal pulmonary hemorrhage is rare, it is associated with high mortality. We aimed to evaluate the risk factors associated with pulmonary hemorrhage in preterm infants and to describe the clinical course, including neonatal morbidity, of infants who developed pulmonary hemorrhage. METHODS: We performed a retrospective case-control study of 117 newborn infants aged less than 37 gestational weeks admitted to the neonatal intensive care unit of Daegu Fatima Hospital between January 1995 and December 2008. Control group infants without pulmonary hemorrhage were matched according to the gestational age, duration of mechanical ventilation, and birth weight range (< or =100 g). Pulmonary hemorrhage was defined as the presence of hemorrhagic fluid in the trachea and severe respiratory decompensation. RESULTS: Pulmonary hemorrhage occurred in 17 cases of very low birth weight infants (VLBW; birth weight < 1,500 g; median age, 3 days) and 22 cases of low birth weight infants (LBW; 1,500 g < or = birth weight < 2,500 g; median age, 1 day). Antenatal maternal glucocorticoid treatment significantly reduced the incidence of pulmonary hemorrhage in VLBW infants. Low APGAR score (< or =3 at 1 min) and acidosis at birth were associated with significantly high incidence of pulmonary hemorrhage in LBW infants. CONCLUSION: Antecedent factors and timing of pulmonary hemorrhage of LBW infants were different from those of VLBW infants. The mortality rates of VLBW and LBW infants were 88.2% and 45.5%, respectively. Pulmonary hemorrhage was the principal cause of death in 66.6% VLBW infants and 40.0% LBW infants.
Acidosis
;
Aged
;
Apgar Score
;
Birth Weight
;
Case-Control Studies
;
Cause of Death
;
Gestational Age
;
Hemorrhage
;
Humans
;
Incidence
;
Infant
;
Infant, Low Birth Weight
;
Infant, Newborn
;
Infant, Premature
;
Infant, Very Low Birth Weight
;
Intensive Care, Neonatal
;
Parturition
;
Prognosis
;
Respiration, Artificial
;
Retrospective Studies
;
Risk Factors
;
Trachea
5.Comparison of Nucleotide Sequences of Hantaan and Seoul viruses Passed in Suckling Mouse Brains.
Yong Ju LEE ; Ki Joon SONG ; Young Ju CHOI ; Duck Joo LEE ; Sang Hyun KIM ; Jae Kyung YUN ; Jin Won SONG
Journal of the Korean Society for Microbiology 1997;32(4):435-446
Hantaan (HTN) virus and Seoul (SEO) virus, two murid rodent-borne hantaviruses harbored by the striped-field mouse (Apodemus agrarius) and the Norway rat (Rattus norvegicus), respectively, were known to cause hemorrhagic fever with renal syndrome (HFRS). After inoculation of HTN and SEO viruses into suckling mice intracerebrally, mice became ill and were morbibund by 15 or 16 days postinfection. Viral antigens were present in brain, heart, lung, liver, kidney, spleen, pituitary gland, thymus, lymph nodes, adrenal, pancreas, salivary glands, trigeminal ganglia, adipose tissue, intestine and muscle. Moreover, the time period appearing illness and morbidity were gradually decreased from 15 or 16 days to 8 or 9 days postinfection increasing the passage number. Therefore to evaluate the relationship between these adaptation process and genomic change of HTN and SEO viruses, we sequenced corresponding regions of the 3' G1 and 5' G2 encoding M genomic segments of two HTN and six SEO virus strains, and compared the nucleotide changes between the original stocks and five to nine passed virus strains in suckling mice brains. There was no nucleotide changes in HTN virus strains and zero to four nucleotide changes in SEO virus strains. However, only one base change resulted in amino acid change at the position 1691 (Gln to Glu) of 5' G2 encoding M genomic segment. This amino acid change didn't effect any conformational change in the beta-sheet, hydrophilicity, antigenicity and surface probability of protein structure of G2 glycoprotein. Our present data suggested that the genomic changes in the 3' G1 and 5' G2 encoding M genomic segment was not related with adaptation process of HTN and SEO viruses passed in suckling mice brains.
Adipose Tissue
;
Animals
;
Antigens, Viral
;
Base Sequence*
;
Brain*
;
Glycoproteins
;
Hantavirus
;
Heart
;
Hemorrhagic Fever with Renal Syndrome
;
Hydrophobic and Hydrophilic Interactions
;
Intestines
;
Kidney
;
Liver
;
Lung
;
Lymph Nodes
;
Mice*
;
Muridae
;
Norway
;
Pancreas
;
Pituitary Gland
;
Rats
;
Salivary Glands
;
Seoul virus*
;
Seoul*
;
Spleen
;
Thymus Gland
;
Trigeminal Ganglion
6.Hereditary Spastic Paraplegia.
Nan Ae KIM ; Moon Ki CHO ; Chang Jun COE ; Duck Jin YUN ; Jung Ho SUH
Journal of the Korean Pediatric Society 1982;25(5):498-502
Hereditary spastic paraplegia is a familial disorder which is inherited by autosomal dominant, autosomal recessive or sex linked pattern. We experienced a family who has hereditary spastic paraplegia with mental retardation and extrapyramidal symptom that is thought inherited by autosomal dominant inheritance pattern. A review of literatures was made briefly.
Humans
;
Inheritance Patterns
;
Intellectual Disability
;
Spastic Paraplegia, Hereditary*
7.Hereditary Spastic Paraplegia.
Nan Ae KIM ; Moon Ki CHO ; Chang Jun COE ; Duck Jin YUN ; Jung Ho SUH
Journal of the Korean Pediatric Society 1982;25(5):498-502
Hereditary spastic paraplegia is a familial disorder which is inherited by autosomal dominant, autosomal recessive or sex linked pattern. We experienced a family who has hereditary spastic paraplegia with mental retardation and extrapyramidal symptom that is thought inherited by autosomal dominant inheritance pattern. A review of literatures was made briefly.
Humans
;
Inheritance Patterns
;
Intellectual Disability
;
Spastic Paraplegia, Hereditary*
8.A Case of Primary Mucinous Adenocarcinoma on Skin of The Lateral Canthus.
Seong Min HONG ; Sang Duck KIM ; Ki Jung YUN
Journal of the Korean Ophthalmological Society 2009;50(10):1582-1585
PURPOSE: To report a rare case of primary mucinous adenocarcinoma arising from a sweat gland in the eyelid. CASE SUMMARY: A 68-year-old male presented to our hospital with a painless, superficial nodular lesion over the skin of the right lateral canthus that had slowly grown over the past two years. The patient had a history of surgical excision for three nodular lesions at the same site 5 years ago, and an excisional biopsy was mucinous adenocarcinoma with a positive margin. A systemic evaluation, including whole-body Positron Emission Tomography scan (PET), chest computerized tomography, gastrointestinal endoscopy, and colonoscopy, revealed no other abnormal lesions. Therefore, the eyelid lesion was considered a primary mucinous adenocarcinoma of the skin. CONCLUSIONS: Primary mucinous adenocarcinoma of the eyelid can rarely metastasize. Therefore, a systemic examination is warranted to discriminate primary and metastatic adenocarcinoma and also to monitor the long-term follow-up for the evaluation of local recurrence.
Adenocarcinoma
;
Adenocarcinoma, Mucinous
;
Aged
;
Biopsy
;
Colonoscopy
;
Endoscopy, Gastrointestinal
;
Eyelids
;
Humans
;
Male
;
Mucins
;
Organothiophosphorus Compounds
;
Positron-Emission Tomography
;
Recurrence
;
Skin
;
Sweat Glands
;
Thorax
9.Prognostic Factors of Renal Defects on the Initial DMSA Scan in Children with Acute Pyelonephritis.
Yeong Seon SEON ; Duck Geun KWON ; Yun Hyea SHIN ; Ki Soo PAI
Journal of the Korean Society of Pediatric Nephrology 2010;14(2):195-202
PURPOSE: The purpose of this study is to determine if there are prognostic factors leading to permanent parenchymal damages to kidney in children after acute pyelonephritis. METHODS: This study was conducted in 160 pediatric patients with acute pyelonephritis admitted to Ajou University Hospital from 2000 to 2005, whose renal cortical defects were confirmed by 99mTc-dimercaptosuccinic acid scintigraphy (DMSA scan). Along with the follow-up DMSA scan after 6 months, they were classified into two groups; recovered group (106) and scarred group (54). The clinical characteristics of each group were compared. RESULTS: Among the total of 160 patients, 106 (66.3%) showed recovery of the initial defect (the recovered group), while 54 (33.8%) showed permanent defects on the follow-up DMSA scan (scarred group). Recovery rate was poor for patients of 1 year and older, or patients with the duration of fever and pyuria longer than 7 days. The recovery rate was poor in the patients with history of frequent febrile episodes and abnormal results of imaging studies, such as voiding cystourethrography (VCUG), ultrasonography. CONCLUSION: The recovery rate of children with renal defects on DMSA scan with acute pyelonephritis was lower when the patient is older than 1 year, when the duration of fever and pyuria exceeded 7 days, and when the patients had the histories of frequent febrile episodes and had urinary tract abnormalities on imaging studies. These findings suggest that there may be under- or mis-diagnosis of acute pyelonephritis by pediatrician.
Child
;
Cicatrix
;
Fever
;
Follow-Up Studies
;
Humans
;
Kidney
;
Pyelonephritis
;
Pyuria
;
Succimer
;
Technetium Tc 99m Dimercaptosuccinic Acid
;
Urinary Tract
;
Urinary Tract Infections
10.The Relationship between Prostate-specific Antigen, Invasiveness and Vascular Endothelial Growth Factor in Human Prostatic Cancer.
Hyoung Jin KIM ; Dong Sun KIM ; Duck Ki YUN ; Jae Heung CHO ; Cheol Whan KIM ; Jong Bo CHOI
Korean Journal of Urology 2001;42(6):621-626
PURPOSE: Vascular endothelial growth factor (VEGF) known as an angiogenic factor is a potent inducer of pathologic neovascularization. The purpose of this study is identifying the relationship between serum PSA, invasiveness and VEGF expression in prostatic cancer. MATERIALS AND METHODS: Ex-vivo study with immunohistochemical stain analysis for VEGF expression was performed on 18 paraffin embedded specimens of prostatic cancer patients who were treated with radical prostatectomy. VEGF expressions were classified by three groups (1+ , 2+ , 3+ ) according to the degree of staining of cancer cell. Biochemical failure and recurrence were determined by Takayama's IMx PSA assay criterion (>0.1ng/ml) following radical prostatectomy. RESULTS: Immunohistochemical studies demonstrated that each group contained 1, 2, 8 patients in advanced disease (n=11), and 3, 2, 2 patients in localized disease (n=7), respectively. All cases in strong positive (3+ ) group had Gleason sum higher than 7 and nadir PSA values were lower than 0.1ng/ml except one case. We found no correlation between initial PSA and VEGF expression (p=0.361). Three biochemical recurrent patients were identified as strong positive VEGF expression. CONCLUSIONS: Our study indicates that patients with advanced stage and higher Gleason sum have a trend with more VEGF expression than patients with localized disease. Identifying the angiogenesis factors especially, VEGF involved in prostatic cancer growth and understanding their regulation will lead to the developement of anti-angiogenic strategies useful for diagnostic studies and therapeutic interventions.
Angiogenesis Inducing Agents
;
Humans*
;
Neovascularization, Pathologic
;
Paraffin
;
Prostate-Specific Antigen*
;
Prostatectomy
;
Prostatic Neoplasms*
;
Recurrence
;
Vascular Endothelial Growth Factor A*