1.Late Hemorrhagic Disease of Infancy.
Kwang Wook AHN ; Chull Zoo JUNG ; Hyo Seop JU ; Seung Woo MOON
Journal of the Korean Pediatric Society 1986;29(6):97-101
No abstract available.
2.Primary Immunode Ficiency Disorders in Infancy and Childhood.
Hoan Jong LEE ; Jung Shan CHOI ; Jeong Kee SEO ; Kee SEO ; Hyo Sup AHN ; Kwang Wook KO
Journal of the Korean Pediatric Society 1985;28(3):263-282
No abstract available.
3.Clinical Assessment on Juvenile Diabetes Mellitus.
Sang Bok SUK ; Hyo Sup AHN ; Yong CHOI ; Kwang Wook KO
Journal of the Korean Pediatric Society 1979;22(3):223-233
Eleven cases of juvenile diabetes mellitus who were admitted Seoul National University Hospital from Jan., 1969 to Aug., 1978 were aha1yzed. The mean age of onset was 7 and female to male ratio was 8 to 3 with female preponderance. Four had family history of diabetes, although none had diabetic sibling. Polyuria and polydipsia were noted in all cases as initial symptoms, and symptoms of weight loss (6 cases), disturbances in consciousness (5), generalized weakness (5), anorexia (4) and enuresis (3) were noted in the order of frequency. Leucocytosis was noted in 5 cases, but only 2 among the 4 who had infection revealed leucocytosis, The mean blood glucose level was 320 mg% and serum osmolality was 293 mOsm/L. There was no significant difference in the level of blood sugar and serum osmolality according to the consciousness status. Eight episodes of ketoacidosis occured in 5 cases. Three episodes developed due to discontinuance of insulin and three episodes accompanied infection. The mean blood glucose level was 495 mg% and serum osmolality was 300 mOsm/L in ketoacidosis. The consciousness cleared in average 20 hours and ketonuria disappeared in average 26 hours after the administration of insulin (average 5 units/kg of body weight). At discharge, the average dose of insulin needed was 1.2 U/kg/d. Six patients were followed from 6 months to 6 years. Two developed pulmomary tuberculosis during the period of follow up.
Age of Onset
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Anorexia
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Blood Glucose
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Consciousness
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Diabetes Mellitus*
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Enuresis
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Female
;
Follow-Up Studies
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Humans
;
Insulin
;
Ketosis
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Male
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Osmolar Concentration
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Polydipsia
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Polyuria
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Seoul
;
Siblings
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Tuberculosis
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Weight Loss
5.Clinical and Functional Anatomy of the Urethral Sphincter.
Junyang JUNG ; Hyo Kwang AHN ; Youngbuhm HUH
International Neurourology Journal 2012;16(3):102-106
Continence and micturition involve urethral closure. Especially, insufficient strength of the pelvic floor muscles including the urethral sphincter muscles causes urinary incontinence (UI). Thus, it is most important to understand the main mechanism causing UI and the relationship of UI with the urethral sphincter. Functionally and anatomically, the urethral sphincter is made up of the internal and the external sphincter. We highlight the basic and clinical anatomy of the internal and the external sphincter and their clinical meaning. Understanding these relationships may provide a novel view in identifying the main mechanism causing UI and surgical techniques for UI.
Autonomic Nervous System
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Muscles
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Pelvic Floor
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Pudendal Nerve
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Urethra
;
Urinary Incontinence
;
Urination
6.Late Hemorrhagic Disease of Infancy.
Joong Gon KIM ; Young Min AHN ; Hyo Seop AHN ; Yong CHOI ; Kwang Wook KO
Journal of the Korean Pediatric Society 1980;23(7):572-577
A hemorrhagic disease due to prothrombin complex deficiency os described in 4 infants from 1 to 11 months of age. This disease is different from the hemorrhagic disease of the newborn. The main differences are that it is found in an older age group and that intracranial hemorrhages are frequent. Rapid clinical and laboratory response after vitamin K therapy are observed. Severe prothrmbin complex deficiency due to vitamin K deficiency is a accounted for the pathogenesis of bleeding. Possible causes of vitaimn K deficiency are reviewed.
Hemorrhage
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Humans
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Infant
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Infant, Newborn
;
Intracranial Hemorrhages
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Prothrombin
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Vitamin K
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Vitamin K Deficiency
7.Ultrasonic Device Part I: Overview.
Dai Hyun KIM ; Kwang Jun LEE ; Joo Yeon KO ; Hyo Hyun AHN ; Young Chul KYE ; Hwa Jung RYU
Korean Journal of Dermatology 2013;51(5):305-310
Ultrasound is over 20 khz, which represents the upper frequency limit of human hearing. Acoustic vibrations are generated when piezoelectric materials on the thin disc-shaped transducers expand and contract. Although low frequency ultrasound devices have been used widely in the dermatologic area for a long time, the mechanism and side effects have been overlooked. A low-frequency ultrasound device has many benefits on the cosmetic dermatology area by thermal effect, vibration effect, and increase of transdermal delivery of lipophilic drugs or cosmetics. However, there have been reports of dermatitis, dyspnea, dizziness, and burns after treatment with ultrasound. Therefore, the use of this device should be under a doctor's supervision.
Acoustics
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Burns
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Contracts
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Cosmetics
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Dermatitis
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Dermatology
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Dizziness
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Dyspnea
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Hearing
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Humans
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Organization and Administration
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Transducers
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Ultrasonics
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Vibration
8.The Effect of Long-erm Lamivudine Therapy for Chronic Liver Disease due to Hepatitis B Virus.
Jin Suk KIM ; Kwang Hyub HAN ; Hyo Young CHUNG ; Sang Hoon AHN ; Yong Han PAIK ; Kwan Sik LEE ; Chae Yoon CHON ; Young Myoung MOON
The Korean Journal of Hepatology 1999;5(2):97-104
BACKGROUND/AIMS: We studied to evaluate the virological and biochemical responses to lamivudine and to detect YMDD mutants in patients who received long-erm lamivudine therapy. METHODS: We conducted a one-ear trial of lamivudine in 45 Korean patients with chronic liver disease due to hepatitis B virus. The patients were treated with a single oral average dose of 100 mg of lamivudine every day for 12 months. RESULTS: The suppression of serum HBV DNA was sustained in 77.8% of the patients and the normalization of serum ALT in 80%. The proportions of patients with HBeAg seroconversion were 25%. YMDD mutants were detected in 4 of 8 patients who showed sustained HBV DNA and serum ALT response (n=31) and in 3 of 8 patients who showed HBV DNA or serum ALT breakthrough (n=9). The response to lamivudine therapy in HBeAg-egative patients was excellent. CONCLUSION: Lamivudine therapy resulted in a significant virological and biochemical improvements and were well tolerated. But, YMDD mutants were detected during lamivudine therapy.
DNA
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Hepatitis B e Antigens
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Hepatitis B virus*
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Hepatitis B*
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Hepatitis*
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Humans
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Lamivudine*
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Liver Diseases*
;
Liver*
9.Early diagnostic value of the antimycoplasma antibody (IgM) in Mycoplasma pneumoniae pneumonia: A single-center study in 2015
Hyo Jung KOH ; Min Sub KIM ; Kwang Yeon LEE ; Dong Hee KANG ; Seong Gyu LEE ; Yeon Hwa AHN
Allergy, Asthma & Respiratory Disease 2019;7(3):129-136
PURPOSE: Recently, the incidence of refractory Mycoplasma pneumoniae (MP) pneumonia has increased in Korea. Given that its early diagnosis is helpful in selection of the treatment, this study aimed at investigating the value of the antimycoplasma antibody (IgM) for early diagnosis of MP pneumonia. METHODS: A total of 315 children admitted with MP pneumonia from September 2015 to May 2016 were investigated with the IgM and polymerase chain reaction (PCR) for the diagnosis of MP pneumonia. Specifically, patients were grouped into nonrefractory respiratory MP and refractory MP groups according to their response to macrolide therapy. RESULTS: In the 44 PCR-negative seroconversed children, seroconversed IgM was more frequent in the refractory MP group compared with the nonrefractory respiratory MP group with statistical significance (P<0.001). In the 264 IgM-positive children, the time of antibody reaction was more delayed in the refractory MP group compared to the nonrefractory respiratory MP group with statistical significance (P<0.001). CONCLUSION: This study showed that there was a higher incidence of seroconversed IgM and delayed antibody reaction in the refractory MP group. In children with suspect MP pneumonia, follow-up studies of antibody are necessary, even through initial antibody and PCR showed negative findings. In addition, this result may suggest that the diagnosis of refractory MP pneunomia will be helpful in establishing the strategy of the treatment.
Child
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Diagnosis
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Early Diagnosis
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Follow-Up Studies
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Humans
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Immunoglobulin M
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Incidence
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Korea
;
Mycoplasma pneumoniae
;
Mycoplasma
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Pneumonia
;
Pneumonia, Mycoplasma
;
Polymerase Chain Reaction
10.Evaluation of microleakage with retrograde filling materials in blood contamination using fluid transport model.
Hyo Soon AHN ; In Ho JANG ; Se Joon LEE ; Kwang Won LEE
Journal of Korean Academy of Conservative Dentistry 2002;27(1):24-33
Leakage studies have been performed frequently, since a fluid-tight seal provided by various dental filling materials has been considered clinically important. The leakage of the various root-end filling materials has been widely investigated mostly dye penetration method. These dye studies cannot offer any information about the quality of the seal of a test material over a long period of time The purpose of this study was to evaluate the microleakage of root end cavities in blood contamination filled amalgam, intermediate restorative material(IRM), light cured glass ionomer cement(GI) and mineral trioxide aggregate(MTA) by means of a modified fluid transport model. Fifty standard human root sections, each 5mm high and with a central pulp lumen of 3mm in diameter, were and filled with our commonly used or potential root end filling materials after they were contaminated with blood. At 24h, 72h, 1, 2, 4, 8, and 12 weeks after filling, leakage along these filling materials was determined under a low pressure of 10KPa(0.1atm) using a fluid transport model. The results were as follows: 1. MTA group showed a tendency of decreasing percent of gross leakage (20ml/day) in process of time, whereas the other materials showed a tendency of increasing in the process time. 2. At the all time interval, GI group leaked significantly less than amalgam group and IRM group (p<0.05). 3. At the 4 weeks, the percentage of gross leakage in MTA group decreased to 0% thereafter, the low percentage of gross leakage was maintained in MTA group until the end of the experiment, whereas the percentage in IRM group increased to 100%. 4. At the 12 weeks, percentage of gross leakage was significantly low in MTA group(0%), comparison with GI group(40%), amalgam group(90%) and IRM group(100%), but there was no significant difference between latter two materials.
Acrylic Resins
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Glass
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Glutamates
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Guanine
;
Humans
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Light
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Silicon Dioxide
;
Pemetrexed