1.The properties of click-evoked otoacoustic emissions in guinea pigsand studies of test-retest reliability.
Sun O CHANG ; Ha Won JUNG ; Jong Woo CHUNG
Korean Journal of Otolaryngology - Head and Neck Surgery 1992;35(4):485-492
No abstract available.
Guinea*
2.A Clinical Analysis of Intussusception in Infants and Children.
Jong Bae SUN ; Jong Gab KIM ; Jung Youl HWANG
Journal of the Korean Surgical Society 2000;59(5):667-673
PURPOSE: Intussusception is a very common pediatric problem and needs early management. This study evaluated the risk factors of intussusception in infants and children for early diagnosis and treatment. METHODS: 216 cases of pediatric intussusception occurring between 1993 and 1999 in Mokpo Catholic Hospital were investigated retrospectively. 164 patients treated with barium reduction comprised the barium reduction (BR) group and 52 patients treated with manual reduction or bowel resection was operation (OP) group. RESULTS: The age incidence under 1 year old was 108 patients (65.9%) in BR group, 45 patients (86.5%) in OP group. Male to female ratio was 1.8:1 in BR and 1.7:1 in OP, respectively. In the seasonal distribution spring was more common in both group (34.1%, 34.6%). 60.4% in BR group, 76.9% in OP group were revealed leukocytosis above 10.000/mm3 in serum. Previous combined diseases were upper respiratory infection (31.7%, 42.3%), acute gastroenteritis (1.2%, 1.9%) and multiple familial polyposis (0.5% in BR group). The frequent symptoms and signs were bloody stool (86.0%,92.3%), abdominal pain and irritability (86.6%, 82.7%), vomiting (76.9%, 67.3%), and abdominal mass (56.7%, 76.9%). Tachycardia was 12.2% in BR and 44.2% in OP. In plain abdominal radiography, intestinal obstructive pattern was present in 5.5% of BR group and 53.8% of OP group. Success rate of barium reduction within 24 hours after symptom appearance was 82.3%. Within 24-48 hours was 61.1%, above 48 hours was 25%. There was a statistically significant difference between BR group and OP group of patients under 1 year old, with tachycardia, symptoms for longer than 48 hours and obstructive pattern on plain abdominal radiography (p<0.05). Of surgical cases, 84.6% were idiopathic. The common anatomical type was ileo-colic type (53.9%). The methods of operation were manual reduction (94.2%) and bowel resection (5.8%). Postoperative complications occurred in 4 cases; 3 cases of wound infection and 1 case of pulmonary complication. Recurrence rate was 12.8% in BR group. CONCLUSION: Risk factors of high incidence such as under 1 year old, severe obstructive pattern on the plain abdominal radiograph, symptoms for longer than 48 hours, and tachycardia, were related with a low success rate of barium reduction. Therefore, a gentle barium enema is recommended in high risk patients for diagnosis and prompt surgical intervention.
Abdominal Pain
;
Barium
;
Child*
;
Diagnosis
;
Early Diagnosis
;
Enema
;
Female
;
Gastroenteritis
;
Humans
;
Incidence
;
Infant*
;
Intussusception*
;
Jeollanam-do
;
Leukocytosis
;
Male
;
Postoperative Complications
;
Radiography, Abdominal
;
Recurrence
;
Retrospective Studies
;
Risk Factors
;
Seasons
;
Tachycardia
;
Vomiting
;
Wound Infection
3.Clinical and Radiological Results of Total Knee Arthroplasty with Patellar Retention.
Eun Koo SONG ; Taek Rim YOON ; Jong Wook JUNG ; Jong Sun KIM
Journal of the Korean Knee Society 2001;13(2):137-141
No Abstract Available.
Arthroplasty*
;
Knee*
4.The Difference between Arterial and End-tidal Carbon Dioxide Tension in Anesthetized Patients with Reduced Functional Residual Capacity.
Jung Won PARK ; Wol Sun JUNG ; Jong Uk KIM ; Pyung Hwan PARK ; Dong Myung LEE
Korean Journal of Anesthesiology 1997;33(1):49-53
BACKGROUND: It has been known that arterial carbon dioxide tension is 4~5 mmHg higher than end-tidal carbon dioxide tension in healthy adults during general anesthesia. But negative arterial to end-tidal PCO2 difference was reported in pregnant patients undergoing cesarean section. The purpose of this study was to elucidate the difference between arterial and end-tidal PCO2 in anesthetized patients with reduced functional residual capacity. METHODS: 90 patients were divided into 3 groups i.e. control group (n=30), obese group (n=20, body weight more than 20% greater than ideal weight), pregnant group (n=40). All patients had no cardiac or respiratory abnormalities and never smoked. Arterial blood gas analysis and measurement of end-tidal PCO2 were done 20 minutes after induction of anesthesia in control and obese group and just before uterine incision and 20 minutes after fetal delivery in pregnant group. RESULTS: There were significant correlations between arterial and end-tidal PCO2 in all groups. The incidences of negative arterial to end-tidal PCO2 difference were 10% in control group, 40% in obese group, 42.5% in pregnant group (p<0.05). CONCLUSION: From this study, it is concluded that patients with reduced functional residual capacity have more incidences of negativity than normal patients in the values of arterial to end-tidal PCO2 difference during general anesthesia. So when the tight control of PaCO2 is required in patients with reduced FRC, we recommend to measure PaCO2 for better anesthetic management.
Adult
;
Anesthesia
;
Anesthesia, General
;
Blood Gas Analysis
;
Body Weight
;
Carbon Dioxide*
;
Carbon*
;
Cesarean Section
;
Female
;
Functional Residual Capacity*
;
Humans
;
Incidence
;
Pregnancy
;
Smoke
5.Self-Symptom Checker for COVID-19 Control and Symptom Management
Sun-Ju AHN ; Jong Duck KIM ; Jong Hyun YOON ; Jung Ha PARK
Health Policy and Management 2023;33(1):29-39
Background:
Breaking the chain of disease transmission from overseas is necessary to control new infectious diseases such as coronavirus disease 2019 effectively. In this study, we developed a mobile app called Self-Symptom Checker (SSC) to monitor the health of inbound travelers.
Methods:
SSC was developed for general users and administrators. The functions of SSC include non-repudiation using QR (quick response) codes, monitoring fever and respiratory symptoms, and requiring persons showing symptoms to undergo polymerase chain reaction tests at nearby screening stations following a review of reported symptoms by the Korea Disease Control and Prevention Agency, as well as making phone calls, via artificial intelligence or public health personnel, to individuals who have not entered symptoms to provide the necessary information.
Results:
From February 12 to March 27, 2020, 165,000 people who were subjected to the special entry procedure installed SSC. The expected number of public health officers and related resources needed per day would be 800 if only the phone was used to perform symptom monitoring during the above period.
Conclusion
By applying SSC, more effective symptom monitoring was possible. The daily average number of health officers decreased to 100, or 13% of the initial estimate. SSC reduces the work burden on public healthcare personnel. SSC is an electronic solution conceived in response to health questionnaires completed by inbound travelers specified in the World Health Organization International Health Regulations as a requirement in the event of a pandemic.
6.Short-Term Hypolipidemic Effects of Pravastatin in Patients with Hyperlipidemia.
Jong Hoa BAE ; Heung Sun KANG ; Kwon Sam KIM ; Myung Shick KIM ; Jung Sang SONG
Korean Circulation Journal 1992;22(1):140-145
BACKGROUND: Hyperlipidemia is the one of the major risk factors causing the atherosclerosis of coronary arteries. Treatment of hyperlipidemia with drugs has been confirmed the effects of therapy showing a decreased incidence of coronary artery disease. Pravastatin is one of the new HMG-CoA reductase inhibitors and we studied the short-term hypolipidemic effects and safety of pravastatin in patients with hyperlipidemia. METHODS: We studied 31 patients(7 males and 24 females ; range of age, 36-67 years) for 12 weeks whose plasma levels of total cholesterol were higher than 250mg% after one month period of diet therapy. Pravastatin was administered 10mg/day and measured lipid profiles at 4 week interval. RESULTS: Pravastatin reduced the plasma total cholesterol from 286.2mg% to 212.3mg% (25.9%), the LDL-cholesterol from 204.2mg% to 143.6mg% (29.7%), the triglyceride from 226.0mg% to 161.4mg% (28.6%) after 12 weeks treatment. The HDL-cholesterol increased from 25.8mg% to 46.4mg% (20.5%) after pravastatin therapy. These changes were disclosed all statistically significant compared to baseline levels(p<0.01). The clinical and laboratory examinations before and after pravastatin treatment showed no particular abnormal findings. CONCLUSIONS: These results suggested that short-term pravastatin therapy in patients with hyperlipidemia seems to be very effective and safe.
Atherosclerosis
;
Cholesterol
;
Coronary Artery Disease
;
Coronary Vessels
;
Diet Therapy
;
Female
;
Humans
;
Hydroxymethylglutaryl-CoA Reductase Inhibitors
;
Hyperlipidemias*
;
Incidence
;
Male
;
Plasma
;
Pravastatin*
;
Risk Factors
;
Triglycerides
7.Studies on the protective effect of metallothionein induction against nephrotoxicity of aminoglycoside antibiotic.
Hae Young CHUNG ; Jung Sun KIM ; Yung Jae RHO ; Jong Seog KIM ; Han Young CHUNG
Korean Journal of Nephrology 1992;11(1):40-48
No abstract available.
Metallothionein*
8.Changes of Plasma Atrial Natriuretic Peptide and Antidiuretic Hormone in Congenital Heart Disease.
Sun Jun KIM ; Jong San LEE ; Chan Uhng JOO ; Dae Yeol LEE ; Jung Soo KIM
Journal of the Korean Pediatric Society 1989;32(8):1106-1116
No abstract available.
Heart Defects, Congenital*
;
Plasma*
9.Computerized analysis of fetal heart rate after acoustic stimulation.
Kyung Mee JUNG ; Jong Woon BAE ; Moon Il PARK ; Sun Il KIM ; Seung Kwon KHO
Korean Journal of Obstetrics and Gynecology 1999;42(12):2684-2689
OBJECTIVES: The objectives of this study is to compare the differences of fetal heart rate (FHR) variables between preterm and term pregnancies after acoustic stimulation using computerized analysis of fetal heart rate. METHODS: Eighty-two normal pre-term and term pregnancies entered to this study after conventional 20-minutes nonstress test(NST) and 10-minutes acoustic stimulation test (AST). Acoustic stimulations were performed using Fetal Acoustic Stimulator (Model 146, Corometrics, US). We analyzed the FHR response after acoustic stimulation using our on-line computerized FHR analysis system, HYFM-I & II software. The changes of loss of signal, baseline FHR, variability, number of fetal movements, and number of FHR accelerations were analyzed numerically. RESULT: The mean baseline FHR was increased in term pregnancies from 141+/-7.0bpm to 152.7+/-9.7bpm, and in preterm pregnancies from 144.6+/-6.8bpm to 156.8+/-10.2bpm, respectively. The mean baseline FHR was significantly increased in both term and preterm pregnancies (p<0.01. paired t-test). The variability of FHR was increased in term pregnancies from 18.2+/-6.4bpm to 22.6+/-5.0bpm and in preterm pregnancies from 17.8+/-5.5bpm to 22.7+/-5.9bpm, respectively. The variability of FHR was also significantly increased in both term and preterm pregnancies. (p<0.01. paired t-test) CONCLUSION: The mean baseline FHR and the variability of FHR was significantly increased both preterm and term pregnancies. But the difference of each FHR variables between preterm pregnancies and term pregnancies was not statistically significant in this study.
Acceleration
;
Acoustic Stimulation*
;
Acoustics*
;
Female
;
Fetal Heart*
;
Fetal Movement
;
Heart Rate, Fetal*
;
Pregnancy
10.The Correlation Between the Smoking and Oxygen Free Radicals in Men.
Yun Jung KANG ; Kyung Jong LEE ; Kyong Bok MIN ; Sun Young LEE
Korean Journal of Health Promotion 2012;12(3):129-136
BACKGROUND: This study aimed to empirically investigate the determinants on oxygen free radical degree which causes biological damage focusing on smoking habit and health behaviors in daily life. METHODS: In this cross-sectional study, the subjects were adult males who submitted free radical tests among the examinees of the comprehensive medical testings at an university hospital in Suwon from 2008 to 2010. Total 497 samples were used in analyses for clarifying the relations of free radical degree to age, smoking, obesity, and other health behaviors. RESULTS: First, the degree of oxygen free radical increases by 0.164 as the age group increases (P<0.05). Second, the degree of oxygen free radical increases by 0.547 as the smoking habit increases (P<0.001). Third, the degree of oxygen free radical increases by 0.087 as the exposure to hazardous factors in workplace increases (P<0.001). CONCLUSIONS: The findings of the study imply that the smoking habit has more great influence on the increase of oxygen free radical in body than any other health behaviors. The causality of free radical to smoking and health behavior was not identified due to the limit of the cross-sectional study so it needs to be studied prospectively in the future.
Adult
;
Cross-Sectional Studies
;
Free Radicals
;
Health Behavior
;
Humans
;
Male
;
Obesity
;
Oxygen
;
Smoke
;
Smoking