1.Correlation of Treadmill Exercise Test and Coronary Angiogram in Coronary Artery Disease.
Yong Kwang YOON ; Woong Ku LEE ; Seoung Yun CHO ; Won Heum SHIM ; Nam Sik CHUNG ; Ick Mo CHUNG
Korean Circulation Journal 1988;18(3):361-369
The exercise ECG gives a valuable indirect evidence of insufficient myocardial perfusion during stress, but it has been impossible with ECG data alone to localize the site or sites of partial or complete arterial occlusion. The coronary angiography has proved to be valvuable as a technique for identifying anatomical lesions. However, arteriography alone dose not provide evaluation of the underlying myocardium. The two tests are complementary, one supplying indirect physiologic data and the other providing anatomical licalization of obstruction. The author reviewd 58 patients out of 86 patients who performed treadmill test and coronary angiography at the cardiac laboratory of Yonsei University Severance Hospital from January, 1981 through December, 1983. The following results were obtained. 1) Among the 58 patients in this study, 33 had negative exercise test and 25 had positive test. 2) Among the 14 patients who ended exercise test due to chest pain,2patients had negative exercise test. Coronary angiography on all the 14 patients showed significalt coronary artery stenosis. 3) With this multigraded treadmill test, the sensitivity was 68.8% and spedccificity was 88.7%. 4) The appreance of ischemic change during the early stage of exercise, the deeper ST segment depression and the downsloping ST segment have the higest specificity as indicators of coronary artery disease. 5) Four patients showed ST segment elevation in the exercise ECG, and their coronary angiogram showed 1-vessel disease in 1 patientts, 2-vessel dosease in 2 and 3-vessel disease in 3. All of them had multiple stenosis or complete obstruction of the left anterior descending artery on coronary angiogram and ventricualar dyskinesia on the left ventriculogram.
Angiography
;
Arteries
;
Constriction, Pathologic
;
Coronary Angiography
;
Coronary Artery Disease*
;
Coronary Stenosis
;
Coronary Vessels*
;
Depression
;
Dyskinesias
;
Electrocardiography
;
Exercise Test*
;
Humans
;
Myocardium
;
Perfusion
;
Sensitivity and Specificity
;
Thorax
2.Do the family physicians having their clinic in seoul want to join in education for students and resident.
Kyung Yun KIM ; Hyun Eun KANG ; Seoung Wook HWANG ; Jeong Hee YANG ; Be Long CHO ; Bong Yul HUH
Journal of the Korean Academy of Family Medicine 2001;22(11):1581-1588
BACKGROUNDS: The education by the family physician. is important for more practical primary care medicine education. In this study, we try to know the presnent state of education and the future and the number of education resource and how to multiply this resource. METHODS: we have got the list of family physicians who have their clinic in Seoul by the help of the Korean Academy of Family Medicine. And we performed telephone questionary. We also asked the demographic factors RESULTS: 134 persons were asked questionary by the telephone. 17persons were joining in education. Trainee by the 3rd grade hospitals was the major, the next was by 2nd grade hospital, and doctors who did not have the training. 14 persons have begun education by asking of the training hospital, 3 persons wanted it, but none thought it beneficial to them. 44 persons wanted to join education in the future, and there was no difference between the 3rd and the 2nd grade hospital trainee. CONCLUSION: There was no difference between the 3rd and 2nd grade hospital trainee but 2nd grade hospital trainee was less joining than the 3rd. This shows that the 2nd grade hospital trainee can be the good pool of the future education if there are adequate supply. So many adequate supply is necessary.
Demography
;
Education*
;
Humans
;
Physicians, Family*
;
Primary Health Care
;
Seoul*
;
Telephone
3.Diffuse Nesidioblastosis of the Pancreasin Adult with Persistent Hyperinsulinemic Hypoglycemia
Seoung Ha LEE ; Kean Young HYOUNG ; Geom Seog SEO ; Bong Joo SHIN ; Chung Gu CHO ; Kwang Soo YANG ; Kwon Mook CHAE ; Ki Jung YUN
Journal of Korean Society of Endocrinology 1996;11(2):247-253
Nesidioblastosis is a term that describes multifocal hyperplasia of all panereatic cell components and is characterized primarily by their disorganization and proliferation throughout the entire panaeas. Adult onset nesidioblastosis is an extremely rare entity associated with hypersecretion of insulin. The authors have recently experieneed a case of nesidioblastosis in an adult. A 41-year old man was admitted due to interrnittenr hypoglycemic symptoms, that had been relieved by carbohydrate ingestion. Hyperinsulinemic hypoglycemia was documented during prolonged fast. Under the presumptive diagnosis of insulinoma, abdominal CT, celiac angiogram and percutaneous transhepatic portal venous sampling were done but we could not find any definitive mass. Eight-five percent of the panacas was removed. Pathologic examination of the resected pancreas revealed irregularly sized islets and scattering of small endocrine cell clusters throughout the acinar tissue and ductuloinsular complex.
Adult
;
Cellular Structures
;
Congenital Hyperinsulinism
;
Diagnosis
;
Eating
;
Endocrine Cells
;
Humans
;
Hyperplasia
;
Hypoglycemia
;
Insulin
;
Insulinoma
;
Nesidioblastosis
;
Pancreas
;
Tomography, X-Ray Computed
4.Single-Dose Oral Toxicity of Fermented Scutellariae Radix Extract in Rats and Dogs.
Myoung Seok KIM ; Seoung Ho HAM ; Jun Ho KIM ; Ji Eun SHIN ; Jin OH ; Tae Won KIM ; Hyo In YUN ; Jong Hwan LIM ; Beom Su JANG ; Jung Hee CHO
Toxicological Research 2012;28(4):263-268
The aim of this study was to investigate the acute oral toxicity of fermented Scutellariae Radix (JKTMHGu-100) in rats and dogs. JKTM-HGu-100 was orally administered at a dose of 2,000 mg/kg in Sprague-Dawley rats. An escalating single-dose oral toxicity test in beagle dogs was performed at doses of 500, 1000, and 2000 mg/kg with 4-day intervals. Clinical signs, changes in body weight, mortality, and necropsy findings were examined for 2 weeks following oral administration. No toxicological changes related to the test substance nor mortality was observed after administration of a single oral dose of JKTM-HGu-100 in rats or dogs. Therefore, the approximate lethal dose (LD) for oral administration of JKTMHGu-100 in rats was considered to be over 2,000 mg/kg, and the maximum tolerance doses (MTDs) in rats and dogs were also estimated to be over 2,000 mg/kg. These results indicate that JKTM-HGu-100 shows no toxicity in rodents or non-rodents at doses of 2,000 mg/kg or less.
Administration, Oral
;
Animals
;
Body Weight
;
Dogs
;
Rats
;
Rats, Sprague-Dawley
;
Rodentia
;
Scutellaria
;
Scutellaria baicalensis
;
Toxicity Tests
5.Implementation of a Computerized Hospital Equipment Utilization Review System.
Yun Sik KWAK ; Bup Wan KIM ; Hune CHO ; Seoung Goo WOO ; Kyung Tae RYE ; Man Suk JUNG
Journal of Korean Society of Medical Informatics 2000;6(3):65-71
A computerized hospital equipment utilization review system has been developed and implemented in a tertiary care utilization hospital in order to provide real-time equipment utilization with income information to be used in budgeting and strategic planning. Among various hospital fixed and clinical equipment, 283 (purchase price over US$15,000 per unit) were selected initially for utilization review. The application was written in Power Builder which was then loaded on Pentium client or on-line service. The data base management and statistical transactions were done by Oracle v 7.3.4 on NUMA Q2000 server. The utilization and associated income information of operating tables and other clinical equipment were automatically collected from physician order information in the hospital information system. Those information on other equipment which (lid not have direct utility information linked to physician order entry in the hospital information system were manually entered by users .Various utilization reports can be generated by users through computer menus; reports include name of equipment, using department, purchase price and year, frequency of use for inpatients and outpatients separately, income generated by such usage, and etc. The out put can also be generated by department, by instrument. by any interval as selected. The automated hospital equipment utilization review system has been developed and used since March, 2000 and is proven to he an essential tool for the hospital budget planners and managers. The outcome has been increasingly satisfactory.
Budgets
;
Equipment and Supplies, Hospital*
;
Hospital Information Systems
;
Humans
;
Inpatients
;
Operating Tables
;
Outpatients
;
Tertiary Healthcare
;
Utilization Review*
6.Ebstein's Anomaly in Adults.
Myung A KIM ; Seoung Wook CHO ; Woo Seung LEE ; Dong Un KIM ; Kyu Hyung RYU ; Seong Wook PARK ; Byung Hee OH ; Young Bae PARK ; Yun Shik CHOI ; Jung Don SEO ; Young Woo LEE
Korean Circulation Journal 1988;18(4):673-680
Clinical features, laboratory and operative findings were reviewed in 17 cases adult Ebstein's anomaly admitted to Seoul National University Hospital from Feburary,1979 to October, 1987. 1) Mean age of first diagnosis was 28.6 tears old(range ; 14-57 years old). 2) Exertional duspnea(88.2%) and palpitation(64.7%) were the predominant symptoms, and PSVT was documented in 4 cases among 11 patoents with palpitation. 3) Echocardiogram showed displacement or delayed closure of the tricuspid valve in 13 cases. 4) On similtaneous recording of the intracardiac ECG and pressure, right ventricular electrogram with atrial pressure in atrialized right ventricle was observed in all cases. 5) Right ventriculogram revealed displacement of the tricuspid valve in 9 cases and tricuspid regurgitation in 10 cases. 6) Interatrial communication via ASD(8) and PFO(3) was present in 11 cases(64.7%). 7) Operative finding of 9 cases showed abnormalities of septal leaflet in 9(100%), posterior leaflet in 8(88.8%), and anterior leaflet in 2 cases(22.2%).
Adult*
;
Atrial Pressure
;
Diagnosis
;
Ebstein Anomaly*
;
Electrocardiography
;
Heart Ventricles
;
Humans
;
Seoul
;
Tricuspid Valve
;
Tricuspid Valve Insufficiency
7.Midterm Outcome of Femoral Artery Stenting and Factors Affecting Patency.
Jae Seoung YU ; Keun Myoung PARK ; Yong Sun JEON ; Soon Gu CHO ; Kee Chun HONG ; Woo Young SHIN ; Yun Mee CHOE ; Seok Hwan SHIN ; Kyung Rae KIM
Vascular Specialist International 2015;31(4):115-119
PURPOSE: The purpose of this study was to evaluate the early and midterm results of superficial femoral artery (SFA) stenting with self-expanding nitinol stents and to identify the factors affecting patency. MATERIALS AND METHODS: SFA stenting was performed in 165 limbs of 117 patients from January 2009 to December 2013. Patients were followed-up for the first occurrence of occlusion or stenosis based on computed tomography and duplex scan results and a decrease in ankle brachial index of >15%. RESULTS: During the follow-up period (mean, 15.3+/-3.2 months), no early thrombotic reocclusions occurred within 30 days, but in-stent restenosis developed in 78 limbs. The primary patency rates at 6, 12, 18, and 24 months were 78%, 66%, 42%, and 22%, respectively, and the secondary patency rates were 85%, 72%, 58%, and 58%, respectively. TASC II C or D lesions, stent length >8 cm, number of patent tibial arteries and diabetes were significantly associated with reintervention. CONCLUSION: The midterm results of stenting for SFA occlusive disease were disappointing because the primary and secondary patency rates at two years were 22% and 58%, respectively. Reintervention after SFA stenting remains a major problem, particularly in patients with diabetes mellitus or long TASC II C or D lesions.
Ankle Brachial Index
;
Constriction, Pathologic
;
Diabetes Mellitus
;
Endovascular Procedures
;
Extremities
;
Femoral Artery*
;
Follow-Up Studies
;
Humans
;
Stents*
;
Tibial Arteries
8.A Case of Ischemic Colitis with Massive Bleeding.
Si Min KIM ; Young Sook PARK ; In Su JUNG ; Jin Su YANG ; Yu Seoung SEO ; Yeon Ho JOO ; Tae Hun KIM ; Yun Ju CHO ; Joon Kil HAN ; Jong Eun JOO
Korean Journal of Gastrointestinal Endoscopy 2002;25(6):480-483
Ischemic colitis generally develops in the elderly patients with concomitant cardiovascular condition, diabetes mellitus, and renal insufficiency. This disease predominently occurs in the left colon, particularly splenic flexure and sigmoid colon. The most frequent symptoms include abdominal pain, diarrhea, alteration in bowel functions and hematochezia. Blood loss is usually minimal in most patients. Herein, we report a case of ischemic colitis which developed on ascending colon with massive bleeding. A 48-year-old man was admitted because of massive lower gastrointestinal bleeding for 7 days. He has underwent hemodialysis for thirteen years. Colonoscopy showed a circular ulcer on the ascending colon with partial stenosis and mass-like oozing lesion distal to the stenotic area. We performed right hemi-colectomy. Grossly, colon showed shallow ulceration and congested ileocecal valve coated with hemorrhage. Microscopically, ulcer bed showed thickened and fibrotic submucosa which had nearly obliterated atherosclerotic vessels.
Abdominal Pain
;
Aged
;
Colitis, Ischemic*
;
Colon
;
Colon, Ascending
;
Colon, Sigmoid
;
Colon, Transverse
;
Colonoscopy
;
Constriction, Pathologic
;
Diabetes Mellitus
;
Diarrhea
;
Estrogens, Conjugated (USP)
;
Gastrointestinal Hemorrhage
;
Hemorrhage*
;
Humans
;
Ileocecal Valve
;
Middle Aged
;
Renal Dialysis
;
Renal Insufficiency
;
Ulcer
9.The impact of obesity on the outcomes of laparoscopic colectomy: An observational study
Seoung Wook CHOI ; Jung Wook HUH ; Bo Young OH ; Yoon Ah PARK ; Yong Beom CHO ; Seong Hyeon YUN ; Hee Cheol KIM ; Woo Yong LEE ; Ho Kyung CHUN
Korean Journal of Clinical Oncology 2016;12(2):129-135
PURPOSE: The impact of obesity on the surgical outcomes of Asian patients undergoing laparoscopic colon surgery is not clear. The purpose was to evaluate the outcome of laparoscopic surgery in obese Asian patients with colon cancer.METHODS: We retrospectively reviewed the prospectively collected data of 1,740 consecutive patients who underwent laparoscopic surgery for colon cancer between January 2008 and December 2010. Patients were classified according to the categories proposed by the International Obesity Task Force, Non-obese (body mass index [BMI]<25.0 kg/m2), Obese-I (BMI, 25.0–29.9 kg/m2), and Obese-II (BMI≥30 kg/m2). Surgical outcomes, including open conversion, operative time, and postoperative hospital stay, were compared in the Non-obese, Obese-I, and Obese-II patients.RESULTS: Of the 1,192 patients in the study, 812 (68.1%), 360 (30.2%), and 20 (1.7%), were classified as Non-obese, Obese-I, and Obese-II, respectively. The Obese-II group had higher conversion rates (10.0% vs. 3.6% and 1.6%, P=0.008) and, longer operative times (180.35 vs. 162.54 and 147.84 minutes, P<0.001) than the Obese-I and Non-obese group. However, the other postoperative outcomes were not significantly different. The overall survival and disease-free survival were not significantly different between groups (P=0.952). Multivariate analysis showed that the independent risk factor for conversion were BMI, total operative time, previous operative history, and cancer perforation.CONCLUSION: The outcomes of laparoscopic colon surgery in obese patients are similar to those of non-obese patients, offering all the benefits of a minimally invasive approach. However, the conversion rate was higher in obese patients. It is therefore very important for surgeons to be aware of these risks during laparoscopic colon surgery in obese patients.
Advisory Committees
;
Asian Continental Ancestry Group
;
Colectomy
;
Colon
;
Colonic Neoplasms
;
Disease-Free Survival
;
Humans
;
Laparoscopy
;
Length of Stay
;
Multivariate Analysis
;
Obesity
;
Observational Study
;
Operative Time
;
Prospective Studies
;
Retrospective Studies
;
Risk Factors
;
Surgeons
10.The usefulness of trabecular bone score in patients with ankylosing spondylitis
Seoung Wan NAM ; Yoon-Kyoung SUNG ; Dam KIM ; Soo-Kyung CHO ; Yoonah SONG ; Yun Young CHOI ; Yongjin SIM ; Tae-Hwan KIM
The Korean Journal of Internal Medicine 2021;36(5):1211-1220
Background:
s/Aims: This study was performed to reveal the usefulness of the trabecular bone score (TBS) in assessing bone strength in patients with ankylosing spondylitis (AS) in comparison with dual-energy X-ray absorptiometry (DXA) methods.
Methods:
A total of 215 AS patients (75.8% male) were enrolled from a single university hospital in Korea. Demographic and clinical information were assessed. Patients completed X-rays of the cervical and lumbar spine (L-spine), and spinal ankyloses were quantified using the modified Stoke AS Spine Score (mSASSS). Hip, anteroposterior and lateral L-spine bone mineral density (BMD) and TBS were assessed by DXA methods. Clinical characteristics and bone strength measurement results were compared between male and female AS patients. The accuracy of each bone strength evaluation method in predicting Fracture Risk Assessment Tool (FRAX) scores indicating moderate or higher fracture risk was compared by receiver operating characteristic curves in patients aged ≥ 40 years. Correlations between each bone strength measurement method and mSASSS were examined.
Results:
Male patients showed higher mSASSS and less prevalent peripheral joint involvement compared to female patients (p < 0.05). TBS, hip BMD, and L-spine lateral BMD showed comparably high areas under the curve (AUCs) for predicting FRAX-major osteoporotic fractures (MOF) ≥ 10% (AUC ranged 0.72 to 0.76). TBS negatively correlated with mSASSS in both male and female patients (p < 0.01).
Conclusions
TBS could predict the risk of MOF and is not influenced by spinal osteoproliferation in AS patients, even in those with advanced spinal changes.