1.Case report: Liver resection of liver cell adenoma in 3 males.
Seung Hoon YI ; Sang Mok LEE ; Sung Hwa HONG ; Heung Zae JOO
Korean Journal of Hepato-Biliary-Pancreatic Surgery 1997;1(2):193-200
Liver cell adenoma is uncommon and most often affects women of reproductive age; it is often associated with use of oral contraceptives. It is a very rare benign tumor of the liver in males and associated with use of anabolic steroids or glycogen storage disease type I. The surgical treatment remains controversial. We experienced 3 cases of male liver cell adenoma without use of anabolic steroids or glycogen storage disease. We performed right lobectomy of liver in 2 cases of mass on right lobe and performed mass enucleation with cholecystectomy in another case of mass on left medial segment.
Adenoma, Liver Cell*
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Cholecystectomy
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Contraceptives, Oral
;
Female
;
Glycogen Storage Disease
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Glycogen Storage Disease Type I
;
Humans
;
Liver*
;
Male*
;
Steroids
2.Trauma Analysis of Cranial Fractures and Estimation of Its Related Weapon for Reference to Forensic Anthropological Decisions.
Hyung Nam GOO ; Yoo Hoon KIM ; Seung Gyu CHOI ; Yi Suk KIM
Korean Journal of Physical Anthropology 2011;24(1):1-8
The role of forensic anthropology is to reconstruct the process of individual death by predicting the cause and manner of death as well as to find out biological profiles of unknown skeletal remains based on the data of physical anthropology. The purpose of this study is to suggest the data of decision-making process for cranial fractures and its related weapons of skeletal remains from the forensic fields. A hammer (31.7%) and baseball bat (16.7%) represented almost half of the blunt type of weapon used in the cranial fracture. The linear fracture was caused by most of weapons, the spider's web and depressed fracture by the hammer, and the comminuted fracture by the heavy tools such as maul, wrench, etc as well as the hammer. By the chi-square test, there were significant differences between fracture patterns and types of weapon that it was helpful to estimate the weapon of cranial fracture for forensic anthropological decisions. Conclusively, we could prepare the priority order of estimating cause and manner of death in the case of cranial fracture for the forensic context and suggest research design of physical anthropology about osteological biomechanics and taphonomy relating cranial fractures.
Anthropology, Physical
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Baseball
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Biomechanics
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Forensic Anthropology
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Fractures, Comminuted
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Research Design
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Skull
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Weapons
3.Wearable Physiologic Monitoring System in Health Promotion.
Jun Su KIM ; Kayoung LEE ; Cheol Seung YOO ; Tae Woong KIM ; Sang Hoon YI ; Hee Cheol KIM
Korean Journal of Health Promotion 2011;11(1):1-8
With the development of body sensor technology, wearable health monitoring systems have been an emerging information technology in the 'ubiquitous health care' system. Wearable sensors enable long-term continuous physiological monitoring important in health promotion and management of many chronic disorders. In this paper, we present several wearable health monitoring systems developed by different countries and discuss emerging opportunities, as well as, existing challenges such as standardization, administration, validation, and discrepancy issues between technology and clinical implication.
Health Promotion
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Monitoring, Physiologic
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Telemedicine
4.Total Hip Arthroplasty in Patients with Avascular Necrosis of the Entire Femur
Seung Rim YI ; Se Hyuk IM ; Sang Hoon PARK
The Journal of the Korean Orthopaedic Association 2019;54(3):281-286
Avascular necrosis (AVN) is defined as the cellular death of bone and bone marrow components due to the loss of blood supply, and associated with post-traumatic or non-traumatic events. AVN usually involves the epiphysis of a long bone, such as the femoral and humeral heads, which are susceptible to osteonecrosis. Many studies have been conducted but they were restricted to investigations of femoral head avascular necrosis. The presence of osteonecrosis in the proximal femur may impair biological fixation after total hip arthroplasty. We report a 56-year-old male patient with avascular necrosis located not only at the femoral head, but also in the entire femur, including the medullary cavity, who underwent total hip arthroplasty 2 years earlier along with a review of the relevant literature.
Arthroplasty, Replacement, Hip
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Bone Marrow
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Epiphyses
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Femur
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Head
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Humans
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Humeral Head
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Male
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Middle Aged
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Necrosis
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Osteonecrosis
5.Development of New Orthognathic Model Surgery Technique Based on the Reference Points onto the Teeth and the Use of Occlusal Index
Seung Hoon LEE ; Seong Seob OH ; Choong Kook YI ; Kyung Ran PARK ; Sang Hwy LEE
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons 2011;33(2):128-136
6.The Diagnosis and Management of Hyperthyroidism Consensus - Report of the Korean Thyroid Association.
Ka Hee YI ; Jae Hoon MOON ; In Ju KIM ; Hee Seung BOM ; Jaetae LEE ; Woong Youn CHUNG ; Jae Hoon CHUNG ; Young Kee SHONG
Journal of Korean Thyroid Association 2013;6(1):1-11
No abstract available.
Consensus
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Hyperthyroidism
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Thyroid Gland
7.Effectiveness and Technical Considerations of Solitaire Platinum 4×40 mm Stent Retriever in Mechanical Thrombectomy with Solumbra Technique
Ho Jun YI ; Jae Hoon SUNG ; Dong Hoon LEE ; Seung Yoon SONG
Journal of Korean Neurosurgical Society 2021;64(1):30-38
Objective:
: The Solitaire Platinum 4×40 mm stent retriever contains radiopaque markers with a long length. We evaluated the effect of Solitaire Platinum 4×40 mm stent retriever in Solumbra technique thrombectomy, and compared it with shorter Solitaire stent retrievers.
Methods:
: A total of 70 patients who underwent Solumbra technique thrombectomy with equal diameter (4 mm) and different length (40 vs. 20 mm) Solitaire stent retrievers were divided into two groups : the Solitaire Platinum 4×40 mm stent (4×40) group and the Solitaire FR 4×20 mm stent or Solitaire Platinum 4×20 mm stent (4×20) group. The clinical outcomes, Thrombolysis in Cerebral Infarction score, the first pass reperfusion status, and complications were evaluated and compared between the two groups. Multivariate analysis was performed to evaluate the predictive factors for reperfusion and complete reperfusion from the first pass.
Results:
: Higher first-pass reperfusion and complete reperfusion were achieved in the 4×40 group (68.0% and 48.0%) than in the 4×20 group (46.7% and 33.3%; p=0.004 and 0.007, respectively). In multivariate analysis, radiopaque device and longer stent retriever were correlated with first-pass reperfusion (p=0.014 and 0.008, respectively) and first-pass complete reperfusion (p=0.022 and 0.012, respectively).
Conclusion
: Our study demonstrated the usefulness of the Solitaire Platinum 4×40 mm stent retriever, which led to higher firstpass reperfusion and complete reperfusion rates than the Solitaire FR 4×20 mm stent or the Solitaire Platinum 4×20 mm stent, especially in Solumbra technique thrombectomy.
8.Does Multiphasic Contrast Enhanced Fluid Attenuated Inversion Recovery Magnetic Resonance Imaging Enhance the Detectability of Small Intracerebral Metastases?
Jung Hwan KIM ; Kyung Sik YI ; Chi Hoon CHOI ; Seung Tae WOO ; Sang Hoon CHA
Journal of the Korean Radiological Society 2018;78(3):179-189
PURPOSE:
To determine adequate timing of acquisition of contrast-enhanced fluid attenuated inversion recovery (FLAIR) by using multiphasic contrast-enhanced FLAIR magnetic resonance imaging (MRI) and to evaluate added value in detecting small intracerebral metastases 5 mm or less.
MATERIALS AND METHODS:
Twenty-nine patients, that underwent multiphasic contrast-enhanced FLAIR MRI and contrast-enhanced T1 weighted image (T1WI) were included and total number of small intracerebral metastases was 131. Sensitivity, specificity and accuracy of lesion detection were evaluated. Contrast ratio (CR) and enhancement ratio of each lesion were compared and analyzed among each imaging sequence.
RESULTS:
Sensitivity, specificity and accuracy of lesion detection were increased when contrast-enhanced FLAIR was added to contrast-enhanced T1WI. Area of under receiver operating characteristic curve significantly increased by addition of contrast-enhanced FLAIR than using contrast-enhanced T1WI alone (p < 0.05). CR was significantly higher in contrast-enhanced T1WI than FLAIR (p < 0.001). All of the above results were not different according to time of acquisition of contrastenhanced FLAIR.
CONCLUSION
There was advantage of conducting contrast-enhanced FLAIR MRI, but multiphasic contrast-enhanced FLAIR did not provide additional information for detection of small intracerebral metastases compared with single-phase FLAIR MRI.
9.A Case of Subacute Thyroiditis Associated with Papillary Thyroid Carcinoma and Takayasu's Arteritis.
Dongwon YI ; Seung Hoon BAEK ; Seok Man SON ; Yang Ho KANG
Endocrinology and Metabolism 2011;26(4):324-329
Subacute thyroiditis is a self-limiting inflammation of the thyroid, presenting with painful thyroid swelling, thyrotoxicosis and low radioactive iodine uptake. The characteristic US findings for this disease are focal ill-defined hypoechoic areas in one lobe or diffuse hypoechoic areas in both lobes. Thyroid carcinomas should be included in the differential diagnosis for a lesion with focal hypoechoic areas and have been rarely reported to coexist with subacute thyroiditis. Takayasu's arteritis is an autoimmune disease that affects the aorta and its branches as well as pulmonary arteries. Subacute thyroiditis associated with Takayasu's arteritis is extremely rare, with only three cases being reported. We report here on the first case with the simultaneous diagnosis of subacute thyroiditis, papillary thyroid carcinoma and Takayasu's arteritis.
Aorta
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Autoimmune Diseases
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Carcinoma
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Diagnosis, Differential
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Inflammation
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Iodine
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Pulmonary Artery
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Takayasu Arteritis
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Thyroid Gland
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Thyroid Neoplasms
;
Thyroiditis, Subacute
;
Thyrotoxicosis
10.Association of Heart Rate Variability with the Framingham Risk Score in Healthy Adults.
Cheol Seung YOO ; Kayoung LEE ; Sang Hoon YI ; Jun Su KIM ; Hee Cheol KIM
Korean Journal of Family Medicine 2011;32(6):334-340
BACKGROUND: The aim of this study was to investigate the relationship between heart rate variability (HRV), the Framingham risk score (FRS), and the 10-year risk of coronary heart disease (CHD) development among Korean adults. METHODS: The subjects were 85 healthy Korean adults recruited from a health check-up center. The FRS and 10-year risk of CHD development were calculated. RESULTS: The FRS in men was inversely correlated with the standard deviation of all normal to normal RR-intervals (SDNN); the root mean square successive difference (RMSSD); the percentage of successive normal cardiac inter-beat intervals greater than 20 ms, 30 ms, and 50 ms (pNN20, pNN30, pNN50); the low frequency (LF); and the high frequency (HF) (P < 0.05). There was no significant relationship between the FRS and HRV in women. Overall, in the receiver operating characteristic (ROC) analysis, the RMSSD, HF, SDNN, LF, LF/HF ratio, and pNN30 predicted an increased 10-year CHD risk. After adjusting for sex and body mass index, those with greater than one standard deviation in the RMSSD, HF, and LF had a 52-59% reduction in their 10-year risk of CHD development > or = 10%. CONCLUSION: This study therefore indicates that the HRV indices, particularly SDNN, RMSSD, pNN30, LF, and HF may be useful parameters for the assessment of CHD risk. Most notably, the usefulness of these HRV measures as indicators for CHD risk evaluation may be greater among men than among women.
Adult
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Body Mass Index
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Coronary Disease
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Electrocardiography
;
Female
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Heart
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Heart Rate
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Humans
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Male
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Risk Assessment
;
ROC Curve