1.Chest x-ray findings of opportunistic infections
Yul LEE ; Suk Chul JEON ; Jeong Ki KIM ; Jae Hyung PARK ; Chu Wan KIM
Journal of the Korean Radiological Society 1983;19(2):347-352
The chest X-ray findings of 20 cases of pulmonary opportunistic infections were analyzed according tocausative agents. The results we as follows; 1. Final diagnoses of 20 cases of opportunistic infections weretuberculosis in 6 cases, pneumocystis carinii pneumonia in 5 cases, bacterial infection in 7 cases, and fungalinfection in 2 cases. 2. The underlying diseases were leukemia in 6 cases, kidney transplantation in 6 cases,lymphoma in 3 cases, nephrotic syndrome in 1 case, nasopharyngeal cancer in 1 case, multiple myeloma in 1 case,agranulocytosis in 1 case, and hypogammaglobulinemia in 1 case. 3. In tuberculosis, all the 6 cases showed severemanifestations such as miliary tuberculosis, tuberculous pneumonia, moderately advanced tuberculosis andtuberculous pericarditis. 4. In pneumocystis carinii pneumonia, the most frequent findings were bilateral alveolardensities and peripheral field of the lung was saved in most cases. 5. In 2 cases of fungal infections bilatarealmultiple cavitary nodules were noted. 6. In cases of bacterial infection there were more cases of gram negativeinfection than gram positive and 2 cases of pseudomonas revealed bilateral multiple cavitary nodules.
Agammaglobulinemia
;
Bacterial Infections
;
Diagnosis
;
Kidney Transplantation
;
Leukemia
;
Lung
;
Multiple Myeloma
;
Nasopharyngeal Neoplasms
;
Nephrotic Syndrome
;
Opportunistic Infections
;
Pericarditis
;
Pneumonia
;
Pneumonia, Pneumocystis
;
Pseudomonas
;
Thorax
;
Tuberculosis
;
Tuberculosis, Miliary
2.Cephalometric measurement according to skeletal maturity stage of the hand and wrist.
Korean Journal of Orthodontics 1987;17(1):135-148
To investigate the relationship between craniofacial growth and bone maturity of the hand wrist in normal occlusion, the author took cephalogram and handwrist radiogram of 391 students (male 192, female 199) and assessed the measurements of cephalogram according to skeletal maturity stages of the hand and wrist. In this study, four skeletal stages and 36 linear, angular measurements of the cephalometrics were selected. In hand-wrist X-ray the bones used to determine skeletal maturity were the middle phalanges of the third finger, and distal epiphysis of the radius. In cephalogram, the landmark used to measure the angle and length were N, S, Po , Ar., Go., Me, Gn., Pog, Point B, Point A, ANS, PNS, Or, U1, L1, U6, L6 etc. The results were as follows, 1 The table of mean, standard deviation, p-value from measurements were made in each group and both sex. 2 The increased measurements according to skeletal maturity were anterior cranial bese length, posterior cranial base length, ramus height, anterior facial height, posterior facial height, L1 to mandibular plane (mm), facial plane angle. In contrast to, decreased measurements were gonial angle, facial cnvexity and facial plane angle. 3 Denture pattern measurements (IMPA, FMIA, occlusal plane to Go-Gn, interincisal angle, U1 to SN plane, U1 to SN plane, U1 to facial plane, L1 to facial plane etc) had nothing to do with skeletal maturity. 4 Skeletal maturity had close relationship with craniofacial growth, but had little to do with tooth development.
Dental Occlusion
;
Dentures
;
Epiphyses
;
Female
;
Fingers
;
Hand*
;
Humans
;
Radius
;
Skull Base
;
Tooth
;
Wrist*
3.Thoracolumbar Epidural Hematoma Complicated by Cauda Equina Syndrome : Complication of Systemic Heparinization Following Epidural Anesthesia: A case report.
Hyung Ku YOON ; Ho Seung JEON ; Key Nam CHO ; Jae Ho CHOI
The Journal of the Korean Orthopaedic Association 1998;33(4):1120-1125
Spinal epidural hematoma is a rare complication of epidural anesthesia and most commonly associated with intraoperative or postoperative anticoagulant administration. We describe the case of an acute thoracolumbar epidural hematoma at the T12-L4 level complicated by cauda equina syndrome, which occurred after placement of spinal epidural catheter for anesthesia and anticoagulant therapy for acute myocardial infarction developed postoperatively. In our experience, the spinal epidural catheterization and anticoagulant therapy may potentially increase the risk of epidural hematoma formation.
Anesthesia
;
Anesthesia, Epidural*
;
Catheterization
;
Catheters
;
Cauda Equina*
;
Hematoma*
;
Hematoma, Epidural, Spinal
;
Heparin*
;
Myocardial Infarction
;
Polyradiculopathy*
4.Computed tomography of deep neck infections.
Hyung Jin KIM ; Hae Gyeong CHUNG ; Jae Hyoung KIM ; Eui Gee HWANG ; Sea Young JEON ; Sung Hoon CHUNG
Journal of the Korean Radiological Society 1991;27(2):199-205
No abstract available.
Neck*
5.Echocardiographic Analysis of Systolic Mitral Valve Motion in Healthy Young Males: With Particular Reference to Mitral Valve Prolapse.
Sang Joong JEON ; Choong Ki LEE ; Hyung Woo LEE ; Jae Eun JUN ; Wee Hyun PARK ; Hi Myung PARK
Korean Circulation Journal 1985;15(4):581-586
M-mode echocardiograms were recorded in 268 apparently healthy young male adults and the mitral valve motion during systole was analyzed. In 149 cases( 55.6%) out of 268 the predominant echo of mitral valve closure(CD line) was recorded as smooth line moving slowly anteriorly, in 48 cases(17.9%) the CD line showed an abrupt transient posterior motion during early systole, in 24 cases(9.0%) there were multiple additional echoes posterior to the CD line, 17 cases(6.3%) the mitral valve closure was recorded as pansystolic anteriorly concave echo deviating less than 2 mm from a drawn CD line, and 10 cases(3.7%) as curvilinear and anteriorly convex echo deviating from a drawn CD line. In the remaining 20 cases(7.5%), the mitral valve closure was recorded as pansystolic anteriorly concave echo deviating more than 2 mm from a drawn CD line, which was categorized to have mitral valve prolapse in the current study. However, there were no significant differneces in various echocardiographic dimensions of the heart and the aorta between those with and without mitral valve prolapse.
Adult
;
Aorta
;
Echocardiography*
;
Heart
;
Humans
;
Male*
;
Mitral Valve Prolapse*
;
Mitral Valve*
;
Systole
6.Integrating-Types Biomedical Signal Communication System Combined Power Line and Radio Frequency Communication.
Sung Chul KANG ; Soo Young YE ; Gye Rok JEON ; Jae Hyung KIM ; Dong Keun JUNG
Journal of Korean Society of Medical Informatics 2008;14(3):303-309
OBJECTIVES: In order to devise the combination module transmitting bio signal and signal data remotely, as defect of wirewireless combination module was complemented by designing a single combination of wireless module and power supply module, a single system was implemented. METHODS: Currently in case of wireless transmission, it had various problems causing by some factors such as buildings, obstruction, and entanglement of wires and so on. In order to overcome problems of wireless transmission, a single combination module design was researched, which transmits vital signal and sign data using basic electric line installed in the inner building or between others. Even though it was also possible of wireless communication and the internet, in case of a power supply without them, it could be possible to transfer data to underground or top ground in the inner building without any special communication line. RESULTS: Bio signal data was transmitted through a power supply line, a noise problem occurred would be solved by the designed noise filter. The filter showed that noise was cut off about more than 90%. It was also confirmed that the used ECG signals was stably received on transmission experiment. An internal PCB antenna could make the system be wireless communication without the disclosure of an antenna. CONCLUSIONS: In this study, in order to implement a useful system transmitting bio signal and data through wire and wireless management for combination design of wireless module and electrical line module, bio signal transmission system was implemented by design of noise break filter circuit to reduce power noise and PCB internal antenna design.
Complement System Proteins
;
Disclosure
;
Electric Power Supplies
;
Electrocardiography
;
Internet
;
Noise
;
Vital Signs
7.The Effect of L-arginine on Neointima Formation in a Rat Vascular Injury Model.
Doo Soo JEON ; Jae Hyung KIM ; Ki Dong YOO ; Jang Sung CHAE ; Soon Jo HONG ; Kyu Bo CHOI
Korean Circulation Journal 1997;27(12):1350-1360
BACKGROUND: The inhibitory effects of nitric oxide(NO) on platelet adhesion and vascular smooth muscle cell(VSMC) proliferation may have a possible role inhibiting development of neointima following balloon catheter induced injury. We tested the hypothesis that L-arginine, the precursor of NO, would attenuate neointima formation following balloon catheter induced injury via regulation of antagonistic balance between proliferation and apoptosis of VSMC. METHODS: Adult, male Sprague-Dawley rats(300 to 400g) were anesthetized with ketamine (100mg/kg intraperitoneally). The left common and external carotid artery were exposed. For endothelial denudation, 2mm angioplasty catheter was introduced through the left external carotid artery into the left common carotid artery. The catheter was inflated at I atm. and withdrawn three times. Animals were randomized to receive 2.25% L-arginine in their drinking water(n=14) or placebo(n=16) from 2 days prior to and 9 days following denudation. VSMC proliferation was quantified by immunohistochemical staining with an antibody to the proliferating cell nuclear antigen(PCNA). The cells undergoing apoptosis were identified by terminal nucleotidyl transferase-mediated nick end labeling(TUNEL) method and morphologic changes by computerized planimetry and transmission electron microscopy. RESULTS: 1) The neointimal area in injured arteries were significantly reduced in L-arginine supplemented animals compared with placebo group(p<0.05). 2) L-arginine administration significantly reduced the number of PCNA positive cells in neointima when compared with placebo at 9 days(p<0.05). 3) Positive TUNEL cells were not influenced by L-arginine supplementation. 4) On transmission electron microscopy, there were no cells showing characteristics of apoptosis in neointima. CONCLUSION: These results suggested that the inhibitory effect of L-arginine on neointima formation is due to reduced VSMC proliferation, but is not due to increased VSMC apoptosis at the early time period after initmal injur .
Adult
;
Angioplasty
;
Animals
;
Apoptosis
;
Arginine*
;
Arteries
;
Blood Platelets
;
Carotid Artery, Common
;
Carotid Artery, External
;
Catheters
;
Drinking
;
Humans
;
In Situ Nick-End Labeling
;
Ketamine
;
Male
;
Microscopy, Electron, Transmission
;
Muscle, Smooth, Vascular
;
Neointima*
;
Proliferating Cell Nuclear Antigen
;
Rats*
;
Rats, Sprague-Dawley
;
Vascular System Injuries*
8.Tension Wire Fixation of bony Mallet Finger.
Hyung Ku YOON ; Kyung Hoon KANG ; Kwang Pyo JEON ; Jin Il KIM ; Dong Soo KIM ; Jae Ho CHOI
The Journal of the Korean Orthopaedic Association 1997;32(5):1148-1153
It is usually difficult to obtain an exact reduction of bony mallet finger involving more than one third of the articular surface by closed manipulation and extension splinting and needs the operative treatment to obtain an exact anatomical reduction. Operative treatment of a mallet finger is a difficult procedure, fraught with many potential problems, including intraoperative fragmentation of dorsal lip fracture, difficulty of exposure and anatomical reduction of the fragment, skin slough, and postoperative loss of fixation. The purpose of this study is to evaluate the fixation technique and to reduce intraoperative complications. We retrospectively reviewed 13 patients of bony mallet fingers, who were treated by tension wire fixation between January 1994 and August 1995 at the Department of Orthopaedic Surgery, Kwangmyung Sung Ae Hospital. There were 6 male and 7 female pateints. The most common cause was sports injury (6 cases). According to Wehbe and Schneider classification, 8 cases were type II and subtype B, 7 cases were the other types. According to modified Abouna and Brown criteria, the clinical results were success in 10 cases and failure in 3 cases. Postoperative complications were superficial infeciton (2 cases), skin necrosis (1 case), nail deformity (1 case) and secondary extensor tendon rupture (1 case). In conclusion, tension wire fixation of bony mallet finger was a simple and effective fixation of the fragment under the direct vision, which make it possible to exercise early and fix sturdily. But it should be avoided some pitfalls associated with internal fixation of small bony fragments.
Athletic Injuries
;
Classification
;
Congenital Abnormalities
;
Female
;
Fingers*
;
Humans
;
Intraoperative Complications
;
Lip
;
Male
;
Necrosis
;
Postoperative Complications
;
Retrospective Studies
;
Rupture
;
Skin
;
Splints
;
Tendons
9.Subtalar Distraction Arthrodesis for Calcaneal Malunion.
Hyung Jin CHUNG ; Jae Kwang YUM ; Kook Jin CHUNG ; Jae Min JEON
Journal of the Korean Fracture Society 2006;19(1):34-40
PURPOSE: To evaluate the results and efficacy of the subtalar distraction arthrodesis on patients with complications due to malunion after intra-articular calcaneal fracture. MATERIALS AND METHODS: From October 2001 to September 2004, we operated on 10 patients (14 cases). There were 9 male patients and one female; their mean age was 41 years old. Ten cases among them were operated initially. The mean period between initial injury and arthrodesis was 18 months. The mean follow up period was 16 months. During the operation, we used extensile lateral approach and arthrodesis was performed using tricortical bone block and cannulated screws. The ankle-hindfoot scale was used for clinical evaluation. In radiologic analysis, plain X-ray and CT of the both feet were examined for union and various parameters. RESULTS: Thriteen cases achieved radiologic bone union. The mean ankle-hindfoot scale (maximum: 94 points) increased from 52.4 points preoperatively to points 77.2 at the final follow-up. The radiologic analysis of the pre and postoperative standing lateral radiograph showed mean increase of 6.9 mm in talo-calcaneal height, 5.2 degrees in talocalcaneal angle, 4.3 degrees in talar declination angle and average decrease of 4.5 degrees in talo-first metatarsal angle. CONCLUSION: The short term result of the subtalar distraction arthrodesis using tricortical bone block was promising, but longer follow-up will be needed.
Adult
;
Arthrodesis*
;
Female
;
Follow-Up Studies
;
Foot
;
Humans
;
Male
;
Metatarsal Bones
10.Relationship between the High Fatty Liver Index and Risk of Fracture
Min-Ji KIM ; Min-Su KIM ; Han-Byul LEE ; Jae-Hyung ROH ; Jae-Han JEON
Gut and Liver 2023;17(1):119-129
Background/Aims:
The prevalence of nonalcoholic fatty liver disease (NAFLD) has increased rapidly as a consequence of more sedentary lifestyles and a Westernized diet. Fracture is a major clinical problem in older people, but few large-scale cohort studies have evaluated the relationship between NAFLD and fracture. Therefore, we aimed to determine whether the fatty liver index (FLI), which represents the severity of NAFLD, can predict fracture risk.
Methods:
We analyzed the relationship between the FLI and incident fracture using multivariate Cox proportional hazards models and data for 180,519 individuals who underwent National Health check-ups in the Republic of Korea between 2009 and 2014.
Results:
A total of 2,720 participants (1.5%) were newly diagnosed with fracture during the study period (median 4.6 years). The participants were grouped according to FLI quartiles (Q1, 0 to <5.653; Q2, 5.653 to <15.245; Q3, 15.245 to <37.199; and Q4 ≥37.199). The cumulative fracture incidence was significantly higher in the highest FLI group than in the lowest FLI group (Q4, 986 [2.2%] and Q1, 323 [0.7%]; p<0.001). The adjusted hazard ratio indicated that the highest FLI group was independently associated with a higher incidence of fracture (hazard ratio for Q4 vs Q1, 2.956; 95% confidence interval, 2.606 to 3.351; p<0.001). FLI was significantly associated with a higher incidence of fracture, independent of the baseline characteristics of the participants.
Conclusions
Our data imply that the higher the FLI of a Korean patient is, the higher their risk of osteoporotic fracture, independent of key confounding factors.