1.Clinical experience with IABP: report of 12 cases.
Weon Yong LEE ; Jun Young CHOI ; Kyung Phill SUH
The Korean Journal of Thoracic and Cardiovascular Surgery 1991;24(3):287-291
No abstract available.
2.Mortality arter Treatment of Hip Fracture over 80 years old.
Jun Young CHOI ; Hwa Yeop NA ; Young Sang LEE ; Woo Yong LEE ; Jun Weon CHOI
Journal of the Korean Hip Society 2006;18(3):116-120
Purpose: The purpose of this study was to evaluate the mortality of patients over eighty years old with femoral neck fractures that have been treated with bipolar endoprostheses. Materials and Methods: We retrospectively studied 37 patients out of a total of 83, who suffered from hip fractures and were treated with surgery from 2000 through December 2004. We attempted to distinguish the differences between the 8 patients who died (Group A) and the 29 patients who lived (Group B). The variables that we analyzed, were: age, sex, operative time, the time period from admission to surgery, the time period from admission to discharge, the ASA score, and any medical comorbidities. Results: In Group A, 2 patients died within 1 month, 2 died between 1 and 6 months, 1 died between 6 and 12 months, and 3 died after 1 year. There were statistical differences between Group A and Group B with respect to two variables: the time period from admission to, and medical comorbidities. Conclusion: There were significant correlations with an increase in the mortality rate among patients with lung disease, female patients in general, and delays in surgery. Therefore, particular care should be paid to patients with these variables.
Comorbidity
;
Female
;
Femoral Neck Fractures
;
Hip Fractures
;
Hip*
;
Humans
;
Lung Diseases
;
Mortality*
;
Operative Time
;
Retrospective Studies
3.Prediction of Rotationally Neutral State of the Femur by Comparing with the Shape of Contra-lateral Lesser Trohanter.
Jung Jae KIM ; Eu Gene KIM ; Jun Weon CHOI ; Soo Sung PARK
The Journal of the Korean Orthopaedic Association 1999;34(5):899-903
PURPOSE: To evaluate the accuracy and reliability of method for prediction of rotationally neutral state of the femur by comparing with contra-lateral lesser trochanter. MATERIALS AND METHODS: The rotationally neutral state of the femur was measured by comparing the shape of the opposite side of the lesser trochanter in a normal group of 100 adult. Each examination was performed independently by three observers. The observers predicted a position presumed to be neutral by comparing the shape of lesser trochanter with that of contra-lateral side previously recorded by the C-arm image intensifier. We evaluated the mean angular discrepancy that is different from the neutral point and assessed the inter-observer variations. RESULTS: The mean angular discrepancy (SD) was 3.4 degree(+/-2.4); 3.5 degree(+/-2.4) by observer-1,3.5 degree (+/-2.8) by observer-2, 3.2 degree(+/-2.2) by observer-3. There was no inter-observer variation (p=0.87). 77% of all observers indicated below 4 degree and no one over 15 degree. CONCLUSIONS: The method of comparing the shape of both lesser trochanters is considered to be effective in determining the rotational status of the femur. It could be used as a practical method in the operation of the femoral fracture for prevention of rotational deformity intra-operatively
Adult
;
Congenital Abnormalities
;
Femoral Fractures
;
Femur*
;
Humans
;
Observer Variation
4.Moyamoya-Like Vasculopathy in Neurosarcoidosis.
Jun Kyeung KO ; Sang Weon LEE ; Chang Hwa CHOI
Journal of Korean Neurosurgical Society 2009;45(1):50-52
A 31-year-old man presented with dull headache and memory disturbance lasting for one week. Computed tomographic scans revealed acute hydrocephalus. The cerebrospinal fluid contained 53 leukocytes/mm3, with a mononuclear preponderance and no erythrocytes. Magnetic resonance imaging revealed hydrocephalus and leptomeningeal enhancement. Magnetic resonance angiography and digital subtraction angiography showed supraclinoid occlusion of the right internal carotid artery, which resembled unilateral moyamoya disease. Neuroendoscopic biopsy of a lesion in the septum pellucidum revealed noncaseating granulomas, which was consistent with sarcoidosis. The patient was successfully managed with intravenous methylprednisolone and ventriculoperitoneal shunting. To our knowledge, this is the first case of moyamoya-like vasculopathy associated with neurosarcoidosis.
Adult
;
Angiography, Digital Subtraction
;
Biopsy
;
Carotid Artery, Internal
;
Central Nervous System Diseases
;
Erythrocytes
;
Granuloma
;
Headache
;
Humans
;
Hydrocephalus
;
Magnetic Resonance Angiography
;
Magnetic Resonance Imaging
;
Memory
;
Methylprednisolone
;
Moyamoya Disease
;
Sarcoidosis
;
Septum Pellucidum
;
Ventriculoperitoneal Shunt
5.The Change of Cobb Angle According To Position in Adolescent Idiopathic Scoliosis.
Weon Wook PARK ; Jung Sub LEE ; Ja Gyung KU ; Young Jun CHOI
Journal of Korean Society of Spine Surgery 2003;10(3):255-260
STUDY DESIGN: Consecutive, prospective, radiographic review of adolescent idiopathic scoliosis (AIS) patients. OBJECTIVE: To analyze the change of Cobb angle according to position in AIS. SUMMARY OF BACKGROUND DATA: Cobb angle on standing radiographs was corrected spontaneously while the patients were in the supine position. However, there are few reports on Cobb angle in standing versus supine position in AIS. MATERIALS AND METHODS: We checked AP plain radiographs of 101 AIS patients, 18 male and 83 female, in standing and supine position. Sixty-three cases were under Risser stage V and 38 were Risser stage V. In standing plain radiograph, 27 cases were in Cobb angle 10-19 degrees, 35 in 20-29 degrees, 15 in 30-39 degrees, and 24 over 40 degrees. According to curve pattern, 31 curves were classified as King type I, 32 as type II, 8 as type III, 11 as type IV, 17 as type V, 1 thoracolumbar curve and 1 lumbar curve. Cobb angle reduction was measured on AP radiographs from each group, according to sex, maturation, Cobb angle and curve pattern. RESULTS: Average reduction of Cobb angle was 8.2 degrees(range, 1-21 degrees ), 6.4 degrees for male and 8.6 degrees for female (p=0.19). The reduction value according to maturation was 8.3 degrees for the growing group and 8.0 degrees for the grown group (p=0.73). The average reduction value in Cobb angle 10-19 degrees was 5.4 degrees(40.3%), 20-29 degrees was 7.1 degrees(30.9%), 30-39 degrees was 8.6 degrees(25.7%) and over 40 degrees was 12.8 degrees (23.6%) (p=0.001). The reduction rate decreased in proportion to Cobb angle measured in standing position. The reduction value was 8.2 degrees in King type I curves, 8.6 degrees in type II, 9.1 degrees in type III, 9.1 degrees in type IV and 6.2 degrees in type V (p=0.238). CONCLUSION: An average 8 degrees Cobb angle reduction in supine position, compared with standing position, can influence treatment strategy in AIS patients, because a Cobb angle change more than 5-6 degrees is a threshold value to decide curve worsening. Thus, serial Cobb angle measurement should be performed in standing position.
Adolescent*
;
Female
;
Humans
;
Male
;
Prospective Studies
;
Scoliosis*
;
Supine Position
6.Bone SPECT, Simple Radiography , and Operative Findings in Osteoarthritic Knee with or without Anterior Cruciate Ligament Injury.
Woo Shin CHO ; Seong O YANG ; Ho Seung LEE ; Kyoung Min NOH ; Jun Weon CHOI ; Key Yong KIM
The Journal of the Korean Orthopaedic Association 1998;33(5):1285-1290
In so-called primary osteoarthritic knees, there may be secondary osteoarthritis due to the instability from chronic cruciate ligament and/or meniscal tear. The purpose of this study is to compare the findings of bone single-photon emission computed tomography(SPECT) and those of simple radiography in osteoarthritic knees which we consider as primary on the status of anterior cruciate ligament(ACL). We reviewed the preoperative bone SPECT and simple radiography of forty-three osteoarthritic knees in 23 patients who underwent total knee arthroplasty between 1995 and l996. We divided the cases into two groups on the status of ACL: thirty intact ACLs(Group I), thirteen insufficient ACLs(Group II). Meniscal tear and/or ACL insufficiency were found in 38 of 43 knees, As regards with presence of osteophytes and sclerotic changes on simple radiograph, there was no significant differences between group I and II. Joint space narrowing was more prominent and diffuse in group I(medial 29, lateral 24) than group II(medial 7, lateral 6). Bone SPECT showed diffuse uptake in group I(medial 30, lateral 23), but less uptake on the lateral compartment(medial 13, lateral 3) in group II. In ACL-intact osteoarthritic knees, joint space narrowing on simple radiograph and hot uptake on bone SPECT were more prominent and diffuse than in ACL-insufficient knees. Clinical relevance is still uncertain and further investigation is needed.
Anterior Cruciate Ligament*
;
Arthroplasty
;
Humans
;
Joints
;
Knee*
;
Ligaments
;
Osteoarthritis
;
Osteophyte
;
Radiography*
;
Tomography, Emission-Computed, Single-Photon*
7.Limbus Vertebra Demonstrated by Computed Tomography or Magnetic Resonance Image.
Weon Wook PARK ; Young Jun CHOI ; Sung Jun AHN ; Jung Tae KIM
Journal of Korean Society of Spine Surgery 2001;8(4):475-481
STUDY DESIGN: We studied retrospectively the limbus vertebra by computed tomography or magnetic resonance image. OBJECTIVES: To analyze the clinical and radiologic characteristics of the limbus vertebra and to distinguish it from a fracture, infection or tumor. SUMMARY OF LITERATURE REVIEW: The limbus vertebra is common. However, the clinical manifestations including the level, symptoms and radiologic characteristics of the limbus vertebra are not understood exactly in the literatures. MATERIALS AND METHODS: We presented 25 cases of the limbus vertebra that were confirmed by plain roentgenogram combined with computed tomography (CT) or magnetic resonance imaging (MRI). Of the 25 patients, 18 were males and 7 females. RESULTS: The levels of the limbus vertebra were L3 (2 cases), L4 (13 cases), and L5 (8 cases). There were two cases of 2 level involvement (L3/4 and L4/5). All cases showed the lower lumbar lesion and complained of the lower back pain. The accompanying diseases included 10 cases of herniated intervertebral discs, 2 cases of ankylosing spondylitis, 2 cases of spinal stenosis and one spondylolisthesis. Three patients were first diagnosed as tuberculous spondylitis and 2 patient as spine fracture on plain roentgenograms. But they can be confirmed by demonstrating the herniation of disc material between the anterosuperior bony fragment and the rest of the body in CT or MRI. CONCLUSIONS: The CT or MRI could be great diagnostic modalities. The pathogenesis is thought to be the herniation of disc material into the vertebral body such as Schmorl's node and disc degeneration. Most limbus vertebra was found at the lower lumbar region and accompanied with disc bulging and degeneration. The correlation between the limbus vertebra and lower back pain is not certain.
Female
;
Humans
;
Intervertebral Disc
;
Intervertebral Disc Degeneration
;
Low Back Pain
;
Lumbosacral Region
;
Magnetic Resonance Imaging
;
Male
;
Retrospective Studies
;
Spinal Stenosis
;
Spine*
;
Spondylitis
;
Spondylitis, Ankylosing
;
Spondylolisthesis
8.PLAG1, SOX10, and Myb Expression in Benign and Malignant Salivary Gland Neoplasms
Ji Hyun LEE ; Hye Ju KANG ; Chong Woo YOO ; Weon Seo PARK ; Jun Sun RYU ; Yuh Seog JUNG ; Sung Weon CHOI ; Joo Yong PARK ; Nayoung HAN
Journal of Pathology and Translational Medicine 2019;53(1):23-30
BACKGROUND: Recent findings in molecular pathology suggest that genetic translocation and/or overexpression of oncoproteins is important in salivary gland tumorigenesis and diagnosis. We investigated PLAG1, SOX10, and Myb protein expression in various salivary gland neoplasm tissues. METHODS: A total of 113 cases of surgically resected salivary gland neoplasms at the National Cancer Center from January 2007 to March 2017 were identified. Immunohistochemical staining of PLAG1, SOX10, and Myb in tissue samples was performed using tissue microarrays. RESULTS: Among the 113 cases, 82 (72.6%) were benign and 31 (27.4%) were malignant. PLAG1 showed nuclear staining and normal parotid gland was not stained. Among 48 cases of pleomorphic adenoma, 29 (60.4%) were positive for PLAG1. All other benign and malignant salivary gland neoplasms were PLAG1-negative. SOX10 showed nuclear staining. In normal salivary gland tissues SOX10 was expressed in cells of acinus and intercalated ducts. In benign tumors, SOX10 expression was observed in all pleomorphic adenoma (48/48), and basal cell adenoma (3/3), but not in other benign tumors. SOX10 positivity was observed in nine of 31 (29.0%) malignant tumors. Myb showed nuclear staining but was not detected in normal parotid glands. Four of 31 (12.9%) malignant tumors showed Myb positivity: three adenoid cystic carcinomas (AdCC) and one myoepithelial carcinoma with focal AdCC-like histology. CONCLUSIONS: PLAG1 expression is specific to pleomorphic adenoma. SOX10 expression is helpful to rule out excretory duct origin tumor, but its diagnostic value is relatively low. Myb is useful for diagnosing AdCC when histology is unclear in the surgical specimen.
Adenoma
;
Adenoma, Pleomorphic
;
Antibody-Dependent Cell Cytotoxicity
;
Carcinogenesis
;
Carcinoma, Adenoid Cystic
;
Diagnosis
;
Immunohistochemistry
;
Oncogene Proteins
;
Oncogene Proteins v-myb
;
Parotid Gland
;
Pathology, Molecular
;
Salivary Gland Neoplasms
;
Salivary Glands
;
SOX Transcription Factors
;
Translocation, Genetic
9.Endoscopic Observation of Gastric Varices.
Byung Ki JUNG ; Byung Cheol AHN ; Young Mi YUN ; Weon Young TAK ; Gyu Sik KWAK ; Yong Hwan CHOI ; Jun Mo JUNG
Korean Journal of Gastrointestinal Endoscopy 1991;11(2):285-291
We observed the gastric varices in l89 variceal patients with liver cirrhosis and in 129 patients with UGI bleeding by endoscopy. Gastric varices was found in 27 cases(14.2%) amoag 189 variceal cases. There was variceal bleeding in 74 cases(57.4%) beieg the toy cause of UGI: bleeding among l29 cases with UGI bleeding and 6(4.7%) had endoscopically proved gastric Variceal bleeding. Cardiac and fundic varices were observed in l8 and 12 cases, respectively end 12 cases of cardiac varices were mainly observed on the lesser curvature side. The incidence of isolated gastric varices being 30 % amoag gastric varices was far less than that of esophagogastric varices. There was no significant relations between the severity of liver cirrhosis and the kinds of varices These results suggest that gastric varices are not infrequent cause of UGI bleeding cases. Therefore all must have attention in gastric intestinal fiberscopic examination in portal hypertensive patients.
Endoscopy
;
Esophageal and Gastric Varices*
;
Hemorrhage
;
Humans
;
Incidence
;
Liver Cirrhosis
;
Play and Playthings
;
Varicose Veins
10.Coiling of Middle Cerebral Artery Bifurcation Aneurysms : Clinical and Angiographic Outcomes.
Jung Hwan LEE ; Jun Kyeung KO ; Sang Weon LEE ; Tae Hong LEE ; Chang Hwa CHOI
Korean Journal of Cerebrovascular Surgery 2008;10(3):411-418
OBJECTIVE: The anatomy of middle cerebral artery (MCA) bifurcation aneurysms has been noted to be unfavorable for endovascular treatment. Our purpose was to analyze the clinical and angiographic results of coiling of the MCA bifurcation aneurysms. METHODS: From January 2004 to April 2007, 26 patients harboring 29 MCA bifurcation aneurysms were treated with coils. Of these patients, 16 had subarachnoid hemorrhages (SAH). The bleeding source was a ruptured MCA bifurcation aneurysm in 11 patients and a ruptured aneurysm in a different location in 5 patients, respectively. Treatment-related complications, clinical outcomes, and postprocedural and follow-up angiography results were retrospectively evaluated. RESULTS: 29 MCA bifurcation aneurysms (11 ruptured, 18 unruptured) were occluded with coils in 26 patients. Occlusion was complete for 24 (82.8%) of the 29 aneurysms, incomplete for 3 (10.3%), and partial for 2 (6.9%) aneurysms. Procedural complications included thromboembolism in 6, a small nonocclusive thrombus formation in 1, and intraprocedural aneurysmal rupture in 1. All of symptomatic complications were thromboembolic events that occurred 3 patients with unruptured aneurysm and they discharged with moderate disability state. Follow-up angiograms were available on 16 patients with 18 aneurysms and 1 patient with an initial complete occlusion had a slight neck recanalization. CONCLUSION: Coiling of MCA bifurcation aneurysm could be achieved without treatment-induced neurologic deficit in 88.5% (23/26) of the patients while at the same time obtaining favorable anatomic results. Improvements in device technology and technique will certainly greatly increase the safety of coiling of MCA bifurcation aneurysm, widening its indications.
Aneurysm
;
Aneurysm, Ruptured
;
Angiography
;
Follow-Up Studies
;
Hemorrhage
;
Humans
;
Intracranial Aneurysm
;
Middle Cerebral Artery
;
Neck
;
Neurologic Manifestations
;
Retrospective Studies
;
Rupture
;
Subarachnoid Hemorrhage
;
Thromboembolism
;
Thrombosis