1.CT Arthrographic Finding in Shoulder Instability.
Yong Girl RHEE ; Byung Ki KWON ; Eui Jong KIM ; Kyung Nam RYU ; Jae Hyung LEE
The Journal of the Korean Orthopaedic Association 1998;33(1):61-67
The purpose of this study is to evaluate the morphologic findings of the labrum and capsuloligamentous structures in the normal and unstable shoulders and to compare the effectiveness of double contrast arthrographic findings which were taken with supine and prone position. We reviewed the computerized tomographic arthrogram in 9 cases of normal shoulder and l3 cases of shoulder instability. We evaluated the shape of the labrum, the attachment of anterior capsule and the amount of capsular laxity. Capsular laxity was compared each others in normal, the unidirectional instability and the multidirectional instability. Among these materials, we simultaneously performed CT arthrogram with supine and prone position and evaluated which is more reliable and accurate. Scapular inclination was ahout 25 degrees in the supine position and ahout 60 degrees in the prone position. Normal glenoid labrum varied in size and shape, so its lack of a classic appearance might not indicate a labral tear. Variations existed in the anterior capsular attachment onto the glenoid. The anterior capsule was used to attach far away from the glenoid rim. but it might not indicate an anterior instability. With the prone position, the labral lesion took more excellent visualization due to the contrast coating on the glenoid labrum in both anterior and posterior. Anterior capsular expansion was seen well with prone position in anterior instability. In summary, for proper interpretation of the instability, awareness of the morphologic variations of the labrum and capsuloligamentous structure is important. CT double contrast arthrography with prone position has made a significant contribution to improving and easing the documentation of variety of anatomic abnormalities. Now we recommend the prone position in CT arthrogram for imaging glenoid labrum pathology in shoulder instability.
Arthrography
;
Pathology
;
Prone Position
;
Shoulder*
;
Supine Position
2.Rush Nailing for Tibia Shaft Fracture
Chung Nam KANG ; Kwon Jae ROH ; Jin Man WANG ; Ki Hong CHOI ; Duck Hyung KIM
The Journal of the Korean Orthopaedic Association 1984;19(5):831-837
The results of 17 fractures of tibial shaft treated with Rush nails under the image intensifier and early weight bearing are reported. Thirteen of these fractures were closed. All fractures were united between 12 and 21 weeks clinically, 17 and 26 weeks radiologically after operation. All cases were healed without significant complications, such as fracture disease. The advantages of this method were as follows; 1) normal knee motion and early weight bearingare possible during healing. 2) There is a relatively rapid restoration of bone continuity. This method of treatment for tibial shaft fractures were indicated as follows; 1. Mid-shaft fracture. 2. Segmental fracture of shaft. 3. Expectation of compression force at fracture surface by weight bearing. 4. Open fracture of shaft.
Fractures, Open
;
Knee
;
Methods
;
Tibia
;
Weight-Bearing
3.Stent-assisted Coil Embolization of Cerebral Aneurysms: Review Article.
Hyon Jo KWON ; O Ki KWON ; Hyeon Song KOH ; Sang Hyung LEE
Korean Journal of Cerebrovascular Surgery 2011;13(1):5-14
With the development of devices and techniques, including complex shape coils, balloons, multiple catheter techniques, and intracranial stents, endosaccular treatment of ruptured or unruptured wide-necked cerebral aneurysms has advanced rapidly with respect to indications and outcomes. In contrast to other options, stent-assisted aneurysm embolization has a distinct feature in which the stent is permanently implanted in the cerebral vessels. Therefore, we must consider the short-term effect of stent-assisted aneurysm embolization in the prevention of coil migration and adverse thrombogenicity, but also the permanent mechanical, hemodynamic, and biological influence on the parent vessels and the aneurysm. We have reviewed the current experimental and clinical data on stent-assisted coil embolization of cerebral aneurysms.
Aneurysm
;
Catheters
;
Hemodynamics
;
Humans
;
Intracranial Aneurysm
;
Parents
;
Stents
4.The Atherogenic Index of Plasma is Associated With Cerebral Small Vessel Disease: A Cross-Sectional Study
Ki-Woong NAM ; Hyung-Min KWON ; Jin-Ho PARK ; Hyuktae KWON
Journal of Lipid and Atherosclerosis 2022;11(3):262-271
Objective:
Recently, the lipid profile of atherogenic dyslipidemia has become important in cerebrovascular diseases. Atherogenic index of plasma (AIP), an index that reflects this lipid profile as a single number, has been proposed, but there are still few related studies in cerebrovascular disease. In this study, we evaluated the relationship between AIP and cerebral small vessel disease (cSVD) in health check-up participants.
Methods:
We assessed consecutive health check-ups participants between 2006 and 2013. cSVD was measured including the following three subtypes: white matter hyperintensity (WMH), lacuens, and cerebral microbleeds (CMBs). WMH quantitatively measured the volume, and lacunes and CMBs qualitatively evaluated the presence. AIP was calculated according to the following formula based on blood test results: AIP=log [triglyceride (mg/ dL)/high-density lipoprotein cholesterol (mg/dL)].
Results:
A total of 3,170 participants were evaluated (mean age: 56.5 years, male sex: 53.8%). In multivariable linear regression analysis, AIP (β=0.129, 95% confidence interval [CI]=0.003–0.255) was associated with WMH. Age, hypertension, diabetes, lipid-lowering agents, and intracranial atherosclerosis were also associated with WMH volume. In multivariable logistic regression analysis, AIP (adjusted odds ratio=1.72 1.79, 95% CI=1.03– 2.90) showed close association with lacunes. Age and intracranial atherosclerosis were also related to lacunes. CMBs did not show a statistically significant association with AIP.
Conclusion
High AIP was associated with cSVD in health check-up participants. Since this close relationship was only seen in WMH and lacunes, these subtypes may have arisen from a more atherosclerosis-related pathology.
5.Value of Tip/Base Rgidity Activity Unit on Interpretation of Nocturnal Penile Tumescence & Rigidity Monitoring.
Won Jae YANG ; Sang Kwon BYON ; Woo Young KI ; Heon Gwan LIM ; Woong Hee LEE ; Hyung Ki CHOI
Korean Journal of Urology 2000;41(11):1389-1393
No abstract available.
Male
;
Penile Erection*
6.Solitary Cervical Cord and Dorsal Medullary Infarction.
Hyung Ki HONG ; Doo Hyuk KWON ; Dong Kuck LEE
Journal of the Korean Neurological Association 2010;28(3):245-246
No abstract available.
Infarction
7.A Case of Renal Angiomyolipoma.
Hyung Ki CHOI ; Jong Mok YOUN ; Sung Won KWON
Korean Journal of Urology 1979;20(4):411-415
An angiomyolipoma of the kidney is a benign tumor composed of tissues normally present in an organ but abnormal in quantity, arrangement or degree of maturation. Neither laboratory nor clinical findings provide enough material to diagnose angiomyolipomas so it is very difficult to make correct presurgical diagnosis. A 51 year old housewife was admitted with chief complain of right flank pain and palpable mass for a week duration After urologic and radiologic studies, a presumptive diagnosis of renal cell carcinoma was made and operation was performed. On histologic examination of the removed kidney, it turned out as a angiomyolipoma of the kidney. So we report this case with review of literatures.
Angiomyolipoma*
;
Carcinoma, Renal Cell
;
Diagnosis
;
Flank Pain
;
Humans
;
Kidney
;
Middle Aged
8.The Effect of Bacterial Lipopolysaccharide on the Lymphokine Production of the T Lymphocytes.
Hyung Bae MOON ; Ki Jung YUN ; Won Chul HAN ; Chae Woong LIM ; Hyuk Nyun KWON ; Young Soon PARK
Korean Journal of Pathology 1997;31(3):244-251
It is well known that the murine T helper cell clones are divided by their lymphokine secretory activities. One is the Th-1 cell, producing IL-2 and IFN after stimulation and the other is the Th-2 cell, producing the IL-4 and IL-5. This study was undertaken to evaluate the immunomodulatory properties of the bacterial lipopolysaccharide(LPS) on the lymphokine production in vivo and in vitro. The results were as follows: There were no effects on the lymphokine secretion by the in vitro treatment of the LPS. The in vivo treatment of the LPS decreases the capability of the production of IL-2 and IFN , whereas it increases the capability of IL-4 production. The altered capacity of the lymphokine production was recovered about 2 weeks after the treatment of the LPS. There were no differences on the lymphokine production between E-coli LPS and salmonella LPS. The capacity of the lymphokine production was the same in the treatment of a non-heated LPS or heated-LPS. The lymphokine production of the mice which were desensitized by the long term treatment of the LPS was not different from the control mice. The in vitro treatment of RU486 can block the alterations of the lymphokine production after the treatment of the LPS. In summary, one can tell that the LPS increases the secretion of the IL-4 through the endogenous secretion of the glucocorticoids.
Animals
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Clone Cells
;
Glucocorticoids
;
Interleukin-2
;
Interleukin-4
;
Interleukin-5
;
Mice
;
Mifepristone
;
Salmonella
;
T-Lymphocytes*
;
T-Lymphocytes, Helper-Inducer
9.Induction of Apoptosis by alpha1-Adrenoceptor Antagonists in Benign Prostatic Hyperplasia.
Hyung Il LEE ; Ki Kwon KIM ; Kyung Seop LEE
Korean Journal of Urology 2003;44(7):643-648
PURPOSE: Recent evidence has indicated that alpha1-adrenoceptor antagonists induce prostate apoptosis in patients with benign prostatic hyperplasia (BPH). In this study, the effects of different alpha1-adrenoceptor antagonists, on the apoptosis and cell proliferation in the prostatic glandular epithelium and stroma of patients with benign prostatic hyperplasia, were evaluated. MATERIALS AND METHODS: A retrospective analysis was performed on BPH patients for the relief of lower urinary tract symptoms; an untreated (control) group (n=28), and patients treated with terazosin (n=26), doxazosin (n=27) and tamsulosin (n=15) were included. Archival prostate specimens were selected on the basis of availability of previous TURP (transurethral resection of the prostate) specimens. Terazosin, doxazosin and tamsulosin (2-8mg/day) treatment periods ranged from 1 week to 6 years. Ki-67 immunostaining and the TUNEL assay were used to evaluate the proliferative and apoptotic indices for both the epithelial and stromal components of prostate specimens. RESULTS: A significant induction of apoptosis was observed in patients treated with the alpha1-adrenoceptor antagonists, terazosin and doxazosin, compared with the untreated control group (p<0.01). However, the alpha1A-adrenoceptor antagonist, tamsulosin, resulted in no significant apoptosis. Terazosin, doxazosin and tamsulosin therapy resulted in no significant changes in the prostate cell proliferation (p>0.05). CONCLUSIONS: Our findings demonstrated that alpha1-adrenoreceptor antagonists may regulate the prostate growth, by inducing apoptosis in both the epithelial and stromal cells, with little effect on the cell proliferation. Apoptosis-mediated prostate stromal regression appears as an additional molecular mechanism underlying the therapeutic response to alpha1-adrenoceptor antagonists in the treatment of BPH.
Adrenergic Antagonists
;
Apoptosis*
;
Cell Proliferation
;
Doxazosin
;
Epithelium
;
Humans
;
In Situ Nick-End Labeling
;
Lower Urinary Tract Symptoms
;
Prostate
;
Prostatic Hyperplasia*
;
Retrospective Studies
;
Stromal Cells
;
Transurethral Resection of Prostate
10.Triglyceride-Related Parameters and Symptomatic Atherosclerotic Lesions in Patients With Ischemic Stroke
Ki-Woong NAM ; Hyung-Min KWON ; Yong-Seok LEE
Journal of Lipid and Atherosclerosis 2024;13(2):155-165
Objective:
Recently, evidence has suggested that the pathophysiology and risk factors of intracranial atherosclerosis (ICAS) differs from those of extracranial atherosclerosis (ECAS). In addition, novel parameters reflecting metabolic conditions, such as insulin resistance or atherogenic dyslipidemia, based on triglycerides (TG) and other biomarkers, have emerged. In this study, we evaluated the association between TG-related parameters and symptomatic cerebral atherosclerosis in patients with acute ischemic stroke resulting from large artery atherosclerosis (LAA).
Methods:
We assessed consecutive acute LAA-stroke patients between January 2010 and December 2020. Based on the radiological findings, we classified the relevant symptomatic arteries that caused the index stroke into LAA-ICAS and LAA-ECAS. As TGrelated parameters, the atherogenic index of plasma (AIP) and TG-glucose (TyG) index were calculated according to the following formulas: AIP = log10 (TG Level/High-density Lipoprotein Cholesterol Level), TyG Index = Ln (TG Level × Glucose Level/2).
Results:
A total of 519 patients with LAA-stroke were evaluated. In multivariable logistic regression analysis to identify predictors of LAA-ICAS, AIP was significantly associated with LAA-ICAS (adjusted odds ratio [aOR], 3.60; 95% confidence interval [CI], 1.60–8.06). TyG index also showed a statistically significant relationship with LAA-ICAS (aOR, 1.60; 95% CI, 1.11–2.32). However, TG per se did not show a statistical association with LAA-ECAS.
Conclusion
TG-related parameters were more closely associated with stroke by ICAS than by ECAS. The metabolic conditions reflected by the AIP or TyG index, rather than hypertriglyceridemia itself, may play a greater role in determining the relevant vessel causally involved in a stroke.