1.Clinical Features of Conjunctival Nevi in Korean Patients.
Hwan Eok YEO ; Sun Ho LEE ; Ji Won KWON
Journal of the Korean Ophthalmological Society 2009;50(10):1510-1513
PURPOSE: To evaluate clinical features and therapeutic modality of conjunctival nevi in Korean patients. METHODS: A retrospective analysis was performed on 197 patients (75 males and 122 females) with nevi who were diagnosed by slit lamp examination from 1997 to 2008. RESULTS: Nevi occurred most commonly on bulbar conjunctiva (88%), followed by caruncle and plica semilunaris (7%). The nevi involved temporal (71%), nasal (21%), inferior (2.8%) and superior (0.7%) quadrants of the conjunctiva. The mean horizontal length was 4.3+/-2.0 mm and the mean vertical 4.45+/-2.2 mm. Thirty-five patients (7.8%) received no treatment. Excisional biopsy was performed in 38 patients (19.3%). Argon laser photoablation of conjunctiva nevi was performed in 124 patients (62.9%). CONCLUSIONS: The pattern of conjunctival nevi in Korean patients was similar to Caucasian patients. The biopsy was performed according to appropriate guidelines however, nevus which does not require a biopsy, could be treated by argon laser photoablation.
Argon
;
Biopsy
;
Conjunctiva
;
Humans
;
Male
;
Nevus
;
Retrospective Studies
2.The Accuracy of diabetic mellitus screening test in periodic health examination.
Chung Hwan KIM ; Gu Il KWON ; Hae Kyoung KIM ; Sun Mi YOO ; Yoo Seock CHEONG ; Eal Whan PARK
Journal of the Korean Academy of Family Medicine 2000;21(10):1299-1306
No Abstract Available.
Mass Screening*
3.CT findings of the lipomas in the neck.
Hyuk Po KWON ; Ho Son CHUNG ; Jae Ho CHO ; Sun Yong KIM ; Bok Hwan PARK ; Hong Jin KIM
Journal of the Korean Radiological Society 1991;27(4):492-496
4.Early Results of Endovascular Aneurysm Repair in Abdominal Aortic Aneurysms.
Sun Young MIN ; Sun Jin PARK ; Se Hwan KWON ; Joo Hyeong OH ; Ho Chul PARK
Journal of the Korean Society for Vascular Surgery 2007;23(1):11-18
PURPOSE: We report early experiences on endovascular abdominal aortic aneurysm repair (EVAR). METHOD: We reviewed the results of 15 patients underwent EVAR between 2003 and 2007 in the Kyung Hee University Medical Center, retrospectively. RESULT: Mean age of patients was 71.2 years (range, 51~85 years). 14 patients (93.3%) had comorbidities. All of AAAs were infrarenal types. The mean size of AAA was 58.5 mm (38~91 mm), and the mean length, diameter, and angle of neck was 26.4 mm, 19.9 mm, and 37.7degrees, respectively. Ten patients were accompanied with iliac aneurysm. 14 were bifurcated grafts and 1 was straight tubular graft. Mean procedure time was 100.6 minutes. Mean length of hospitalization was 6.5 days (2~10 days). There was no need of transfusion or use of an intensive care unit. Fever of unknown origin occurred in 7 cases but resolved spontaneously. Device deployment was successful in 100% (primary 9 cases, assisted-primary 6 cases). There were seven endoleaks during interventions. One patient with secondary type II endoleak and suprarenal enlargement of AAA sac died from aortoenteric fistula. In one patient with perigraft abscess after EVAR, surgical drainage was performed. Decrease of AAA diameter > or =5 mm in two patients, newly developed suprarenal aortic aneurysm in one patient were detected on CT scan during mean follow-up of 11.4 months (2-29 months) and remained unchanged in other twelve cases. CONCLUSION: These early results suggest that EVAR offers considerable benefits for appropriate patients, but is thought to need more experiences and long-term outcomes.
Abscess
;
Academic Medical Centers
;
Aneurysm*
;
Aortic Aneurysm
;
Aortic Aneurysm, Abdominal*
;
Comorbidity
;
Drainage
;
Endoleak
;
Fever of Unknown Origin
;
Fistula
;
Follow-Up Studies
;
Hospitalization
;
Humans
;
Iliac Aneurysm
;
Intensive Care Units
;
Neck
;
Retrospective Studies
;
Tomography, X-Ray Computed
;
Transplants
5.The Influence of DNA Ploidy, Index and Lymph Node Status on Disease Free Survival in Patients with Colorectal Cancer.
Sun Keun CHOI ; Joo Hwan JEONG ; Sun Young BAE ; Young Sik KWON ; Kee Chun HONG ; Seok Hwan SHIN ; Ze Hong WOO
Journal of the Korean Society of Coloproctology 2000;16(3):186-192
The DNA flow cytometric analysis in colorectal cancer has been studied for more than 10 years as an independent prognostic factor or a factor correlated with other preexistent prognostic factors, such as the depth of invasion, lymph node status, histologic differentiation, etc. To clarify the influence of DNA contents (DNA ploidy, DNA index) and lymph node status on disease free survival in colorectal cancer, we investigated the relationship between them, retrospectively. METHODS: This study included 198 patients with curatively resected Dukes' stage A, B, and C colorectal cancer who had taken DNA flow cytometric analysis from June of 1996 to March of 1999 at Department of Surgery, Inha University Hospital. RESULTS: In over all twelve-month disease free survival, there were 92.5% in DNA diploid and 74.3% in DNA aneuploid tumors. And so forth, there were 78.0% in positive and 91.9% in negative lymph node tumors. In the event of a DNA index greater and lesser than 1.15, the twelve-month disease free survival was 72.9% and 92.7%, respectively. These results were statistically significant (p<0.05). Therefore, patients with a negative lymph node, diploid colorectal cancer or DNA index lesser than 1.15 had a longer disease free survival than those with a positive lymph node, aneuploid one or DNA index greater than 1.15. CONCLUSIONS: In conclusion, there seems to be a significant relationship between DNA contents and lymph node status on disease free survival. Thus, these factors are considered to be valuable in predicting the recurrence of colorectal cancer.
Aneuploidy
;
Colorectal Neoplasms*
;
Diploidy
;
Disease-Free Survival*
;
DNA*
;
Humans
;
Lymph Nodes*
;
Ploidies*
;
Recurrence
;
Retrospective Studies
6.Detection of Brain Metastatses Using Limited Brain MR Imaging ; Usefulness of Limited Contrast-Enhanced MR Imaging in Brain Metastasis.
Sun Jung KWON ; Yun Sun LEE ; Jin Yong AN ; Hee Sun PARK ; Sung Soo JUNG ; Ju Ock KIM ; Jin Hwan KIM ; Chang Joon SONG ; Sun Young KIM
Tuberculosis and Respiratory Diseases 2003;55(5):499-505
BACKGROUND: The brain is a common site of a metastasis in lung cancer patients. If left untreated, the patients succumb to progressive neurological deterioration with a lower survival rate than with other metastases sites. Contrast-enhanced MR imaging in the absence of symptoms or clinical signs is not recommended for identifying a cerebral metastasis in lung cancer patients because of management effectiveness. This pilot study was performed to estimate whether or not limited brain MR imaging, which has a lower cost, could be used to replace conventional brain MR imaging. METHOD: Between April 1999 and March 2001, 43 patients with a primary lung cancer and the others (breast cancer, stomach cancer, colon cancer, malignant melanoma etc), who had neurological symptoms and signs, were examined using conventional brain MR imaging to examine brain metastases. The control group involved four patients who had no evidence of brain metastases the sensitivity, specificity and correlation of limited brain MR imaging were compared with conventional brain MR imaging. RESULTS: All the 43 patients who were examined with conventional brain MR imaging showed evidence of brain metastases, whereas limited brain MR imaging indicated that 42 patients had brain metastases(sensitivity=97.67%). One patient in whom limited brain MR imaging showed no brain metastasis had a metastasis in the cerebellum, as shown by the contrast-enhanced T1 weighted axial view using conventional brain MR imaging. The conventional brain MR imaging and the limited brain MI imaging of the 4 control patients both indicated no brain metastases (specificity=100 %). The Pearson Correlation of the two groups was 0.884(Confidence Interval : 99%) observed. CONCLUSION: Limited brain MR imaging can detect a brain metastasis with the same accuracy. In addition, it is cost-effective (229,000 won, 180$) compared to conventional brain MR imaging(529,000 won, 480$) when patients had neurological symptoms and signs or staging.
Brain*
;
Cerebellum
;
Colonic Neoplasms
;
Humans
;
Lung Neoplasms
;
Magnetic Resonance Imaging*
;
Melanoma
;
Neoplasm Metastasis*
;
Pilot Projects
;
Stomach Neoplasms
;
Survival Rate
7.An Adult Case of Congenitally Corrected Transposition of the Great Arteries Associated with Paroxysmal Atrial Fibrillation and Heart Failure.
Sang Eog LEE ; Mu Youl LEE ; Kyung Hwan SON ; Heung Sun KANG ; Chung Whee CHOUE ; Kwon Sam KIM ; Myung Shick KIM ; Jung Sang SONG ; Jong Hoa BAE
Korean Circulation Journal 1995;25(5):1036-1044
Congenitally corrected transposition of the great arteries is a rate congenital heart disease. In this discase, there is discordance between both the atria and ventricles and the ventricles and great vessels. The anatomic left ventricle lies on the rightside and is connected to the pulmonic trunk, whereas the anatomic right ventricles lies on the left side and functions as the systemic ventricle. Most patients have associated another cardiac anomalies and conduction disturbance.Less commonly, ventricular extrasystoles, paroxismal supraventricular tachycardia, WPW preexitaion and atrial fibrillation may be obserced. We report an adult case of congenitally corrected transposition of great arteries associated with paroxysmal atrial fibrillation and heart failure.
Adult*
;
Arteries*
;
Atrial Fibrillation*
;
Chymopapain
;
Heart Defects, Congenital
;
Heart Failure*
;
Heart Ventricles
;
Heart*
;
Humans
;
Tachycardia, Supraventricular
;
Transposition of Great Vessels
;
Ventricular Premature Complexes
8.The Validity and Reliability of Korean Frailty Index.
Hwan Sik HWANG ; In Sun KWON ; Byung Joo PARK ; Belong CHO ; Jong Lull YOON ; Chang Won WON
Journal of the Korean Geriatrics Society 2010;14(4):191-202
BACKGROUND: Frailty is a syndrome that involves decreased reserve capacity and loss of physiological function caused by aging. This study was done to develop a frailty index for the Korean elderly. METHODS: The Korean frailty index 8-item questionnaire was established by a panel of experts from the Korean Geriatrics Society. Demographic characteristics, the cardiovascular health study (CHS) frailty index and the Korean frailty index were completed for 240 men and women over 65 years visiting three selected community senior's welfare centers from June 2009 to August 2009. Reliability was tested by internal consistency (Cronbach's alpha) and the test-retest reliability at a 2-week interval. Validity was tested by a criterion validity comparison between the CHS frailty index and the validity index estimated by the reliability index. RESULTS: Cronbach's alpha was 0.65. The range of Kappa value for each item was 0.27-0.65. The Kappa value of the criterion validity comparison with the CHS index for the Korean frailty index was 0.5. The validity indexes for the items estimated by the reliability index ranged from 0.27-0.52 to 0.65-0.81. CONCLUSION: The Korean frailty index is a valid and reliable instrument. However, fine-tuning such as item-revision is needed prior to use in the practical setting.
Aged
;
Aging
;
Female
;
Frail Elderly
;
Geriatrics
;
Humans
;
Male
;
Surveys and Questionnaires
;
Reproducibility of Results
9.Cost-Benefit Analysis of Back School Program for Occupational Low Back pain Patients.
Yeong Su JU ; Mi Na HA ; Sang Hwan HAN ; Ho Jang KWON ; Soo Hun CHO ; Chang Yup KIM ; Sun Min KIM
Korean Journal of Preventive Medicine 1996;29(2):347-358
Although occupational low back pain accounts for 20~40% of all occupational illness and injury, there are limited numbers of studies regarding the effectiveness of back school program. The objective of this study was to evaluate the economic benefit of back school program for early return to work of occupational low back pain patients in the current occupational injury compensation and management system. The cost-benefit analysis in this study was conducted to evaluate the relative magnitude of benefit to cost. The total cost was estimated by calculating the value of components in back school program according to governmental budget protocol. The back school program was consisted of three major approaches, pain center, work-hardening program and functional restoration program and each of components had various facilities and experts. The total amount of cost was estimated as 250,866,220 won per year. The most promising type of back school program were quite intensive (a 3 to 5-week stay in a specialized center), therefore, if we adopted the 5-week stay course, 10 courses could be held in a year. Following to the medical act, 20 patients per doctor could participate in a each course, ie, total 200 patients in a year. As a result, we could estimate the cost of 1,254,331 won a patient. we estimated the benefit by using data of a few local labor offices about average medical treatment beneficiary and off-duty beneficiary of 46 occupational low back pain patients in 1994. Ullman and Larsson(1977) mentioned that the group of chronic low back pain patients who participated in back school program needed less time to recover by 48.4% of beneficiary duration. And in the trying to estimate the benefit, we asked 10 rehabilitation board certificate doctors about reduction proportion of treatment cost by introducing back school program. The answered reduction proportions were in the range of 30~45%, average 39%. As a final result, we could see that the introduction of back school program in treatment of chronic occupational low back pain patients could produce the benefit to cost ratio as 3.90 and 6.28. And we could conclude that the introduction of back school program was beneficial to current occupational injury compensation and management system.
Budgets
;
Compensation and Redress
;
Cost-Benefit Analysis*
;
Health Care Costs
;
Humans
;
Low Back Pain*
;
Occupational Injuries
;
Pain Clinics
;
Rehabilitation
;
Return to Work
10.Interventional Management of Gastrointestinal Fistulas.
Se Hwan KWON ; Joo Hyeong OH ; Hyoung Jung KIM ; Sun Jin PARK ; Ho Chul PARK
Korean Journal of Radiology 2008;9(6):541-549
Gastrointestinal (GI) fistulas are frequently very serious complications that are associated with high morbidity and mortality. GI fistulas can cause a wide array of pathophysiological effects by allowing abnormal diversion of the GI contents, including digestive fluid, water, electrolytes, and nutrients, from either one intestine to another or from the intestine to the skin. As an alternative to surgery, recent technical advances in interventional radiology and percutaneous techniques have been shown as advantageous to lower the morbidity and mortality rate, and allow for superior accessibility to the fistulous tracts via the use of fistulography. In addition, new interventional management techniques continue to emerge. We describe the clinical and imaging features of GI fistulas and outline the interventional management of GI fistulas.
Drainage
;
Gastric Fistula/diagnosis/radiography/*therapy
;
Humans
;
Intestinal Fistula/diagnosis/radiography/*therapy
;
Punctures
;
*Radiography, Interventional