1.Future Contraception Method.
Journal of the Korean Medical Association 1997;40(11):1498-1504
No abstract available.
Contraception*
2.Pre-travel medical consultation for international travelers.
Korean Journal of Medicine 2005;69(4):347-356
No abstract available.
Travel Medicine
3.Diagnosis and management of pre-core mutant chronic hepatitis B.
Sung Won CHO ; Jae Youn CHEONG
Korean Journal of Medicine 2002;63(3):246-250
No abstract available.
Diagnosis*
;
Hepatitis B, Chronic*
;
Hepatitis, Chronic*
4.Diagnosis and management of pre-core mutant chronic hepatitis B.
Sung Won CHO ; Jae Youn CHEONG
Korean Journal of Medicine 2002;63(3):246-250
No abstract available.
Diagnosis*
;
Hepatitis B, Chronic*
;
Hepatitis, Chronic*
5.Non-obstructive Biliary Dilatation After Gastrectomy for Gastric Carcinoma.
Nak Kwan SUNG ; Ok Dong KIM ; Young Hwan LEE ; Hag Young CHEONG ; Kyoo Hyun OH ; Cheong Man LEE ; Won Hun LEE ; Duk Soo CHEONG
Journal of the Korean Radiological Society 1995;33(6):933-937
PURPOSE: To evaluate the incidence,. degree, and clinical significance of non-obstructive intrahepatic bile duct di'latation encountered on follow up CT after gastrectomy for gastric carcinoma. MATERIALS AND METHODS: We retrospectively analyzed follow-up abdominal CT of 65 patients who had undergone gastrectomy with truncal vagotomy and subtotal gastrectomy for gastric carcinoma. We classified those patients who showed intrahepatic duct dilatation into non-obstructive or obstructive groups depending on the presence or absence of the lesions obstructing the duct. We also evaluated the incidence, degree and pattern, and appearance time of non-obstructive type of duct dilatation. RESULTS: Non-obstructive and obstructive biliary dilatations were present in 8 cases(12.3%) and 9 cases(13. 8%), respectively. The degree of non-obstructive group was mild in 6 cases(75%) and moderate in 2 cases (25%) who had taken cholecystectomy during the follow up period, and patterns were proportional dilatation of the central and peripheral intrahepatic ducts. It appeared on follow up CT obtained 6 to 12 months after operation in 7 cases and 3.5 months in one case. No statistical significance was noted between the type of surgery and the incidence of non-obstructive dilatation(p>0.05). CONCLUSION: Mild dilatation of the central intrahepatic ducts without evidence of mechanical biliary obstruction can be seen on follow-up CT obtained more than 6 months after gastrectomy for gastric carcinoma, and the incidence is about 12%. We think that this finding is non-obstructive and clinical evaluation is unnecessary.
Bile Ducts, Intrahepatic
;
Cholecystectomy
;
Dilatation*
;
Follow-Up Studies
;
Gastrectomy*
;
Humans
;
Incidence
;
Retrospective Studies
;
Tomography, X-Ray Computed
;
Vagotomy, Truncal
6.Multiply Operated Lumbar Spine.
Kee Yong HA ; Ki Won KIM ; Cheong Ho CHANG ; Ji Yun WON
Journal of Korean Society of Spine Surgery 1997;4(2):329-336
STUDY DESIGN: A retrospective analysis was performed on 40 patients who had had previous lux bar spine surgeries. OBJECTIVE: To determine what factors most influenced surgical outcome and to analyze results in a series of revision lumbar surgeries. SUMMARY OF BACKGROUND DATA: Satisfactory surgical outcome of the revision lumbar surgery range from 28% to 82% and are rarely comparable to primary surgery. Many factors predicting outcome from repeat lumbar surgery haute been listed. METHODS: Forty patients were analyzed who had had previous lumbar surgeries. The patients were classified into 5 groups according to diagnosis: 3 Infection,5 instability,8 nonunion, 14 HNP and 10 spinal stenosis. of 40 patients,33 patients(82.5%) underwent fusion with instrumentation for repeat surgery. Their clinical course was followed for a minimum of 1 year. The number of surgery on each mpatient was 1.3 times on an average. RESULTS: Overall, 80% of patients had a satisfactory result. Obviously extruded or sequestrated HNP in MRI findings, complete block of contrast with severe radiculopathy and/or myelopathy in spinal stenosis, complete decompression, neurolysi s and fusion with instrumentation, and longer than 6 month pain relief after precious surgery were correlated with satisfactory outcome. However, the number of precious operation, age, repair of pseudarthrosis , no abnormality at surgery and combined multiple degenerative joint disease were significantly correlated with poor surgical outcome. The most common complication during repeat surgery was dural tear in 5 cases(12.5%). CONCLUSIONS: Success rate of revision surgery was low as compared to primary operation. Therefore, erroneous diagnosis and faulty surgical technique understandably lead to failure, and precise attention to preoperative and intraoperative detail can minimize these sources of error.
Decompression
;
Diagnosis
;
Humans
;
Joint Diseases
;
Magnetic Resonance Imaging
;
Pseudarthrosis
;
Radiculopathy
;
Reoperation
;
Retrospective Studies
;
Spinal Cord Diseases
;
Spinal Stenosis
;
Spine*
;
Tears
7.No title available in English.
Cheong Soo PARK ; Woong Youn CHUNG ; Soon Won HONG ; Eun Kyung KIM
Korean Journal of Endocrine Surgery 2002;2(1):58-61
No abstract available.
8.Clinical Application of Non-invasive Diagnosis for Hepatic Fibrosis.
Sung Won CHO ; Jae Youn CHEONG
The Korean Journal of Hepatology 2007;13(2):129-137
Progressive hepatic fibrosis with development of cirrosis is a feature of chronic liver disease. Assessing fibrosis is important for predicting disease progression and patient management. Liver biopsy is the current gold standard for the diagnosis of liver fibrosis. However, liver biopsy is an invasive procedure. Alternative non-invasive methods have been developed. Serum markers are useful in predicting liver cirrhosis, but accuracy of serum markers is not satisfactory in the assessment of fibrosis. Newly developed transient elastography (Fibroscan) is a non-invasive method of measuring liver stiffness. Fibroscan has been reported to be superior in early detection of cirrhosis to serum markers. Factors influencing it's performance are not fully investigated. The evaluation of new tests should be continued to perform.
Biological Markers/blood
;
Chronic Disease
;
Disease Progression
;
Elasticity Imaging Techniques/methods
;
Fibrosis
;
Humans
;
Hyaluronic Acid/analysis
;
Liver/*pathology
;
Liver Cirrhosis/*diagnosis/etiology
9.A clinical study for return to work after heart valve replacement.
Hyun Kyeong KIM ; Kang Nae CHO ; Chong Won KIM ; Whang Kyou CHEONG
The Korean Journal of Thoracic and Cardiovascular Surgery 1991;24(10):967-972
No abstract available.
Heart Valves*
;
Heart*
;
Return to Work*
10.No title available in English.
Cheong Soo PARK ; Woong Youn CHUNG ; Soon Won HONG ; Eun Kyung KIM
Korean Journal of Endocrine Surgery 2001;1(2):272-276
No abstract available.