1.A Case of Thyroid Papillary Cancer Derived from Diffuse Goiter in a Patients with Acromegaly
Dong Hee KIM ; Jick Hwa NAM ; Byoung Ho SIN ; Ye Kyung SEO ; Jung Guk KIM ; Sung Woo HA ; Bo Wan KIM ; Young Ha LEE ; In Su SEO
Journal of Korean Society of Endocrinology 1996;11(3):311-317
Patients with acromegaly have a reduced life expectancy rnainly due to cardiovascular, respiratory or cerebrovascular diseas-. Malignancy also seems to occur with greater than the expected incidence. In particular, the published retrospective or prospective studies have suggested a strong association of colonic neoplasia with acromegaly. But, there were a few reports of thyroid cancer in acrornegaly. We report a case of thyroid papillary cancer derived from diffuse goiter in acromegaly, sugge- sting the possible carcinogenic role of growth hormone.
Acromegaly
;
Bites and Stings
;
Colon
;
Goiter
;
Growth Hormone
;
Humans
;
Incidence
;
Life Expectancy
;
Prospective Studies
;
Retrospective Studies
;
Thyroid Gland
;
Thyroid Neoplasms
2.Comparison of Bone Mineral Density in Elderly Patients according to Presence of Intertrochanteric Fracture.
Sang Ho MOON ; Byoung Ho SUH ; Dong Joon KIM ; Gyu Min KONG ; Hyeon Guk CHO
Journal of the Korean Fracture Society 2007;20(3):222-226
PURPOSE: To analyze difference in bone mineral density (BMD) between intertrochanteric fracture and control group and to explore the predictive value of BMD for intertrochanteric fracture. MATERIALS AND METHODS: 57 patients who were over 60-year-old with intertrochanteric fracture were examined. For control group, 110 patients who did not have any fracture were selected. Dual energy X-ray absorptiometry was studied at 1, 2, 3, 4 lumbar vertebrae, femoral neck, trochanter and Ward's triangle. BMD was compared at each site between two groups statistically. RESULTS: Fracture group consisted of 16 male, 41 female and was average 70.8 year old. Control group consisted of 21 male, 89 female and was average 68.1 year old. There was no differences in sex and age between two groups (p>0.05). BMD of L1, L2 and mean lumbar area were significantly less in fracture group than control group (p<0.05). There was no difference between two groups in BMD of another sites (p>0.05). CONCLUSION: BMD of L1, L2 and mean lumbar area in fracture group had lower value significantly, but had no differences between two groups at another sites. BMD of L1, L2 and mean lumbar area might be used as the most sensitive predictive indicator for risk of osteoporotic fractures including intertrochanteric fracture in elderly patient.
Absorptiometry, Photon
;
Aged*
;
Bone Density*
;
Female
;
Femur
;
Femur Neck
;
Humans
;
Lumbar Vertebrae
;
Male
;
Middle Aged
;
Osteoporotic Fractures
3.Immediate and Mid-Term Outcomes of the Endovascular Stent-Graft Treatment of Abdominal Aortic Aneurysm.
Byoung Keuk KIM ; Sungha PARK ; Young Guk KO ; Boyoung JOUNG ; Donghoon CHOI ; Yangsoo JANG ; Do Youn LEE ; Byoung Chul CHANG ; Won Heum SHIM
Korean Circulation Journal 2005;35(8):583-590
BACKGROUND AND OBJECTIVES: Although the standard management of an abdominal aortic aneurysm (AAA) is surgery, endovascular stent-graft treatment is more attractive for patients with significant co-morbid conditions. We evaluated the immediate and mid-term outcomes for the endovascular treatment of AAA. SUBJECTS AND METHODS: Between November 1996 and August 2004, 59 patients with an AAA (53 males, mean age 68.0+/-9.6 years, 3 cases with ruptured AAA) underwent an endovascular stent-graft repair at our institute. All patients were evaluated by an angiography, taken just after the completion of the procedure and at followed up with computed tomography (CT) at 1, 3, 6 and 12 months, and yearly thereafter. RESULTS: Technical success was achieved in 54 of the 59 patients (91.5%). The periprocedural mortality rate was 3.4% (2 of the 59 patients). A primary endoleak was found in 12 patients (20.3%)(type I; 9 patients, type II; 2 patients, type III; 1 patient), 2 of which required subsequent surgical conversion. Spontaneous resolution of an endoleak was seen in 4 patients (33.3%). The average follow-up period of 57 patients was 27.5 months (range from 72 days to 2581 days). In 8 patients (14.0%), a newly developed secondary endoleak was documented. A total 14 patients (23.7%) died during the follow-up period (rupture; 3, operation-related sepsis; 3, unrelated causes; 3, cardiac arrest; 1, unknown causes; 4). The cumulative survival rates at 30 days and at 1 and 2 years were found to be 93.0, and 85.7 and 76.3%, respectively, using Kaplan-Meier methods. Secondary intervention was required in 12 patients (21.8%), and surgical conversion in 4 (6.8%), with 2 (3.4%) requiring conversion to open surgery immediately after the intervention. In those with technical success, without endoleaks and graft failure, the survival rate during follow-up was higher (97.1%; rate with the exception of unrelated cause of death) than that of all the patients. CONCLUSION: The immediate and mid-term results suggest that the endovascular treatment of an AAA is technically feasible and effective. There was higher mortality and morbidity in primary and newly developed endoleak cases; therefore, proper selection of cases, according to the anatomical and clinical criteria, is essential, with meticulous regular follow-ups being critical for the optimal endovascular treatment of an AAA.
Angiography
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Aortic Aneurysm, Abdominal*
;
Conversion to Open Surgery
;
Endoleak
;
Follow-Up Studies
;
Heart Arrest
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Humans
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Male
;
Mortality
;
Sepsis
;
Survival Rate
;
Transplants
;
Treatment Outcome
4.Clinical Implications of Moderate Coronary Stenosis on Coronary Computed Tomography Angiography in Patients with Stable Angina.
Choongki KIM ; Sung Jin HONG ; Chul Min AHN ; Jung Sun KIM ; Byeong Keuk KIM ; Young Guk KO ; Byoung Wook CHOI ; Donghoon CHOI ; Yangsoo JANG ; Myeong Ki HONG
Yonsei Medical Journal 2018;59(8):937-944
PURPOSE: The present study investigated the diagnostic accuracy and clinical implications of moderate stenosis (50–69%, Coronary Artery Disease Reporting and Data System, grade 3) on coronary computed tomography angiography (CCTA), compared with invasive coronary angiography (ICA). MATERIALS AND METHODS: Two hundred and seventy-six patients who underwent ICA due to moderate stenosis alone on CCTA were selected from our prospective registry cohort. RESULTS: Diagnostic concordance between CCTA and ICA was found in only 50 (18%) patients. Among the 396 vessels and 508 segments with moderate stenosis, diagnostic concordance was found in 132 vessels (33%) and 127 segments (25%). Segments with calcified plaque had lower diagnostic concordance than those with mixed or non-calcified plaque (22% vs. 28% vs. 27%, respectively, p=0.001). While calcified plaque burden did not have an influence on severe stenosis (≥70%) on ICA, higher burden of non-calcified plaque was correlated with a greater incidence of ICA-based severe stenosis, which was more frequent in patients with ≥3 segments of non-calcified plaque (75%) than those without non-calcified plaque (22%, p < 0.001). Typical angina and mixed or non-calcified plaque were correlated with a higher incidence of under-diagnosis, while the use of next-generation computed tomography scanners reduced the incidence of under-diagnosis. Increased body weight, left circumflex artery involvement, and calcified plaque were independent factors that increased the risk of over-diagnosis of CCTA. CONCLUSION: The diagnosis of moderate stenosis by CCTA may be limited in estimating the exact degree of ICA-based anatomical stenosis. Unlike calcific burden, non-calcific burden was positively correlated with the presence of severe stenosis on ICA.
Angina, Stable*
;
Angiography*
;
Arteries
;
Body Weight
;
Cohort Studies
;
Constriction, Pathologic
;
Coronary Angiography
;
Coronary Artery Disease
;
Coronary Stenosis*
;
Diagnosis
;
Humans
;
Incidence
;
Information Systems
;
Prospective Studies
5.Study on Variation of Endemic Mumps Viruses in Korea.
Kyung Il MIN ; Do Keun KIM ; Soo Yeul CHO ; Kwang Soo AHN ; Bok Soon MIN ; Byoung Guk KIM ; Sang Ja BAN ; Sook Jin HUR ; Sue Nie PARK ; Kil Ung LEE
Journal of the Korean Society of Virology 2000;30(2):113-124
No Abstract Available.
Korea*
;
Mumps virus*
;
Mumps*
6.Analysis of Risk Factors and Surgical Results of Lumbar Adjacent Segment Disease.
Whoan Jeang KIM ; Jong Won KANG ; Byoung Sub KAM ; Sung Il KANG ; Won Cho KWON ; Kun Young PARK ; Jae Guk PARK ; Hwan Il SUNG ; Won Sik CHOY
Journal of Korean Society of Spine Surgery 2010;17(2):74-81
STUDY DESIGN: This is a retrospective study. OBJECTIVES: We analyzed the risk factors and the surgical results for adjacent segment disease after lumbar fusion. SUMMARY OF LITERATURE REVIEW: Many studies have been performed about the risk factors for adjacent segment disease, but the findings are still controversial. MATERIALS AND METHODS: This study was carried out on 35 (13 men, 22 women) of 50 patients who underwent lumbar fusion due to adjacent segment disease with a minimum of 2 year follow-up period from July 1999 to July 2006. The differences of the interval to revision (IR) were statistically analyzed by the examining preexisting degenerative change in the adjacent segments on MRI, the number of fused segments, the lumbar lordosis and the sagittal balance. The surgical outcomes of reoperation were assessed by Brodsky's criteria. RESULTS: Junctional stenosis as adjacent segment disease was seen in 21 cases (60%) and instability was seen in 14 cases (40%), including 2 iatrogenic flat backs and 2 cases of lumbar degenerative kyphosis. The average IR was 93 months for the cases that had less than 2 segment fusion (20 cases) and 62 months in those with more than 3 segment fusion (15 cases). As for lumbar lordosis, 25 cases (71%) had a normal range of angle as well as 101 months until the IR and 10 cases (29%) had an abnormal range of angle as well as 64 months until IR. Six cases were beyond the normal range of sagittal balance (17%) and their average IR value was 59 months. Otherwise, the cases with a normal range of sagittal balance had 109 months for the IR. The clinical outcome was excellent in 6 cases (17%) and good in 15 cases (43%). CONCLUSION: To decrease the adjacent segment disease, we should seriously consider the extent of lumbar fusion and we should restore the angle in lumbar lordosis to the physiological range and the sagittal balance during the initial operation.
Animals
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Constriction, Pathologic
;
Ethylenes
;
Follow-Up Studies
;
Humans
;
Kyphosis
;
Lordosis
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Male
;
Reference Values
;
Reoperation
;
Retrospective Studies
;
Risk Factors
7.Feasibility and Diagnostic Accuracy of Whole Heart Coronary MR Angiography Using Free-Breathing 3D Balanced Turbo-Field-Echo with SENSE and the Half-Fourier Acquisition Technique.
Young Jin KIM ; Jae Seung SEO ; Byoung Wook CHOI ; Kyu Ok CHOE ; Yangsoo JANG ; Young Guk KO
Korean Journal of Radiology 2006;7(4):235-242
OBJECTIVE: We wanted to assess the feasibility and diagnostic accuracy of whole heart coronary magnetic resonance angiography (MRA) with using 3D balanced turbo-field-echo (b-TFE) with SENSE and the half-Fourier acquisition technique for identifying stenoses of the coronary artery. MATERIALS AND METHODS: Twenty-one patients who underwent both whole heart coronary MRA examinations and conventional catheter coronary angiography examinations were enrolled in the study. The whole heart coronary MRA images were acquired using a navigator gated 3D b-TFE sequence with SENSE and the half-Fourier acquisition technique to reduce the acquisition time. The imaging slab covered the whole heart (80 contiguous slices with a reconstructed slice thickness of 1.5 mm) along the transverse axis. The quality of the images was evaluated by using a 5-point scale (0 - uninterpretable, 1 - poor, 2 - fair, 3 - good, 4 - excellent). Ten coronary segments of the heart were evaluated in each case; the left main coronary artery (LM), and the proximal, middle and distal segments of the left anterior descending (LAD), the left circumflex (LCX) and the right coronary artery (RCA). The diagnostic accuracy of whole heart coronary MRA for detecting significant coronary artery stenosis was determined on the segment-by-segment basis, and it was compared with the results obtained by conventional catheter angiography, which is the gold standard. RESULTS: The mean image quality was 3.7 in the LM, 3.2 in the LAD, 2.5 in the LCX, and 3.3 in the RCA, respectively (the overall image quality was 3.0+/-0.1). 168 (84%) of the 201 segments had an acceptable image quality (> or = grade 2). The sensitivity, specificity, accuracy, negative predictive value and positive predictive value of the whole heart coronary MRA images for detecting significant stenosis were 81.3%, 92.1%, 91.1%, 97.9%, and 52.0%, respectively. The mean coronary MRA acquisition time was 9 min 22 sec (+/-125 sec). CONCLUSION: Whole heart coronary MRA is a feasible technique, and it has good potential to evaluate the major portions of the coronary arteries with an acceptable image quality within a reasonable scan time.
Reproducibility of Results
;
Middle Aged
;
Male
;
Magnetic Resonance Angiography/*methods
;
*Imaging, Three-Dimensional
;
Humans
;
Fourier Analysis
;
Female
;
Feasibility Studies
;
Coronary Stenosis/*diagnosis
;
Coronary Angiography
;
Analysis of Variance
;
Aged
;
Adult
8.Practice Guidelines for the Manegement of Alzheimer's Disease.
Jong Han PARK ; Byoung Hoon OH ; Byeong Kil YEON ; Seol Heui HAN ; Il Woo HAN ; Guk Hee SUH ; SangYun KIM ; Jae Nam BAE ; Jee Hyang CHONG ; Jae Hong LEE
Journal of the Korean Medical Association 2003;46(12):1071-1096
No abstract available.
Alzheimer Disease*
9.Coronary Computed Tomographic Angiography Does Not Accurately Predict the Need of Coronary Revascularization in Patients with Stable Angina.
Sung Jin HONG ; Ae Young HER ; Yongsung SUH ; Hoyoun WON ; Deok Kyu CHO ; Yun Hyeong CHO ; Young Won YOON ; Kyounghoon LEE ; Woong Chol KANG ; Yong Hoon KIM ; Sang Wook KIM ; Dong Ho SHIN ; Jung Sun KIM ; Byeong Keuk KIM ; Young Guk KO ; Byoung Wook CHOI ; Donghoon CHOI ; Yangsoo JANG ; Myeong Ki HONG
Yonsei Medical Journal 2016;57(5):1079-1086
PURPOSE: To evaluate the ability of coronary computed tomographic angiography (CCTA) to predict the need of coronary revascularization in symptomatic patients with stable angina who were referred to a cardiac catheterization laboratory for coronary revascularization. MATERIALS AND METHODS: Pre-angiography CCTA findings were analyzed in 1846 consecutive symptomatic patients with stable angina, who were referred to a cardiac catheterization laboratory at six hospitals and were potential candidates for coronary revascularization between July 2011 and December 2013. The number of patients requiring revascularization was determined based on the severity of coronary stenosis as assessed by CCTA. This was compared to the actual number of revascularization procedures performed in the cardiac catheterization laboratory. RESULTS: Based on CCTA findings, coronary revascularization was indicated in 877 (48%) and not indicated in 969 (52%) patients. Of the 877 patients indicated for revascularization by CCTA, only 600 (68%) underwent the procedure, whereas 285 (29%) of the 969 patients not indicated for revascularization, as assessed by CCTA, underwent the procedure. When the coronary arteries were divided into 15 segments using the American Heart Association coronary tree model, the sensitivity, specificity, positive predictive value, and negative predictive value of CCTA for therapeutic decision making on a per-segment analysis were 42%, 96%, 40%, and 96%, respectively. CONCLUSION: CCTA-based assessment of coronary stenosis severity does not sufficiently differentiate between coronary segments requiring revascularization versus those not requiring revascularization. Conventional coronary angiography should be considered to determine the need of revascularization in symptomatic patients with stable angina.
Aged
;
Angina, Stable/*diagnostic imaging
;
Coronary Angiography/*methods
;
Coronary Stenosis/*diagnostic imaging
;
Female
;
Humans
;
Male
;
Middle Aged
;
Myocardial Revascularization
;
Predictive Value of Tests
;
Tomography, X-Ray Computed
;
United States
10.Development of One-step Real-time Reverse Transcription-polymerase Chain Reaction in Combination with Automated RNA Extraction for Detection and Quantitation of Hepatitis A Virus.
Byoung Guk KIM ; Hye Sung JEONG ; Sun Young BAEK ; Jin Ho SHIN ; Jae Ok KIM ; Kyung Il MIN ; Seung Rel RYU ; Bok Soon MIN ; Do Keun KIM ; Mi Kyung PARK ; Mi Jin AHN ; Seok Ho LEE ; Sue Nie PARK
Journal of Bacteriology and Virology 2003;33(3):209-218
One-step real-time reverse transcription-polymerase chain reaction (RT-PCR) assay using the MagNA Pure LC and LightCycler(TM) system was developed and validated for the detection and quantitation of hepatitis A virus (HAV) RNA. The assay was evaluated using in-house synthetic HAV RNA standard. The real-time RT-PCR assay could quantitate a dynamic range of HAV RNA standard between 10(2) and 10(8) copies per reaction. The regression coefficient of the standard curve was an 0.99. The detection limit of the assay was 31.3 RNA copies per reaction. The coefficient variations (CVs) of the assay in combination with automated RNA extraction were less than 1.91% in both intra- and inter-assay. The real-time RT-PCR assay for quantitative detection of HAV would serve a useful method for improving the safety of biological products.
Biological Products
;
Hepatitis A virus*
;
Hepatitis A*
;
Hepatitis*
;
Limit of Detection
;
RNA*