1.Free vascularized fibular flap for mandibular reconstruction.
Jong Ho LEE ; Ku Jong SEO ; Kwang PARK ; Moo Gang CHUNG
Journal of the Korean Association of Oral and Maxillofacial Surgeons 1992;18(4):109-120
No abstract available.
Mandibular Reconstruction*
2.Applications of autologous vein graft in the field of oral and maxillofacial surgery.
Jong Ho LEE ; Gu Jong SEO ; Kwang PARK ; Moo Gang CHUNG ; Gi Deog PARK ; Jung Jae JEONG ; Jong Cheol JEONG ; Joon Ah PARK
Journal of the Korean Association of Oral and Maxillofacial Surgeons 1993;19(3):361-372
No abstract available.
Surgery, Oral*
;
Transplants*
;
Veins*
3.A Case of Adult Onset Nemaline Myopathy with Selective Respiratory Muscle Weakness.
So Gang PARK ; Jee Huen KIM ; Min Kyung CHU ; Jong Reun LEE ; Seo Hyun KIM ; Seung Min KIM ; Il Nam SUNWOO
Journal of the Korean Neurological Association 2000;18(5):672-676
Nemaline myopathies, originally reported as a type of congenital myopathy, are clinically and genetically heterogenous diseases. Clinically, nemalin myopathies can be divided into infantile, juvenile and adult forms, and genetically, into autosomal dominant and recessive. There are several reports on nemalin myopathy in Korea, all juvenile forms, but not adult or infant form. In contrast to juvenile form, the adult congential nemalin myopathy is characterized by rather selective acute or subacute respiratory dysfunction in adult age with sporadic or autosomal recessive inheritance. Here, we report the first case of an adult form of nemalin myopathy, whose symptoms were rapidly developed at the age of 32. Therefore, nemalin myopathy can be included in the differential diagnosis for the unexplainable respiratory failure in adult age.
Adult*
;
Diagnosis, Differential
;
Humans
;
Infant
;
Korea
;
Muscular Diseases
;
Myopathies, Nemaline*
;
Respiratory Insufficiency
;
Respiratory Muscles*
;
Wills
4.The Correlations between Extremity Circumferences with Total and Regional Amounts of Skeletal Muscle and Muscle Strength in Obese Women with Type 2 Diabetes.
Hwi Ryun KWON ; Kyung Ah HAN ; Hee Jung AHN ; Jae Hyuk LEE ; Gang Seo PARK ; Kyung Wan MIN
Diabetes & Metabolism Journal 2011;35(4):374-383
BACKGROUND: Insulin resistance is related to central obesity and the amount of skeletal muscle. A simple and practical anthropometric marker for muscle mass is not known, although waist circumference (WC) is used as an indicator of abdominal obesity. The aims of this study were to investigate whether arm (AC) and thigh circumferences (TC) can be used as an indicator of muscle mass and if they are related to muscle strength. METHODS: A total of 110 obese (body mass index [BMI]> or =25 kg/m2) women with type 2 diabetes were enrolled, and WC, AC, and TC were measured. Abdominal visceral fat (AVF), subcutaneous fat (ASF), and total fat (ATF) were assessed by computed tomography, regional muscle (MM), and fat mass by dual-energy X-ray absorptiometry, muscle strength by one repetition maximum (1RM) of both extremities (chest and leg press) and insulin resistance by KITT. RESULTS: The mean age was 56.2+/-7.3 years, duration of diabetes was 4.2+/-4.4 years, and BMI was 27.2+/-2.8 kg/m2. WC was correlated with ATF, AVF, and ASF (r=0.728, P<0.001; r=0.515, P<0.001; r=0.608, P<0.001, respectively). Arm MM was correlated with AC (r=0.500, P<0.001), and leg MM with TC (r=0.291, P=0.002). Upper 1RM was related to AC/WC ratio (r=0.359, P<0.001), and lower 1RM was to TC/WC ratio (r=0.286, P=0.003). Insulin resistance had significant relations with AVF, WC, and total MM (r=-0.262, P=0.008; r=-0.217, P=0.029; r=0.160, P=0.031, respectively). CONCLUSION: The muscle mass was related to extremity circumferences, and muscle strength was to extremity/waist circumference ratio in obese women with type 2 diabetes.
Absorptiometry, Photon
;
Arm
;
Diabetes Mellitus, Type 2
;
Extremities
;
Female
;
Humans
;
Insulin Resistance
;
Intra-Abdominal Fat
;
Leg
;
Muscle Strength
;
Muscle, Skeletal
;
Muscles
;
Obesity, Abdominal
;
Subcutaneous Fat
;
Thigh
;
Waist Circumference
5.Effects of Aerobic Exercise vs. Resistance Training on Endothelial Function in Women with Type 2 Diabetes Mellitus.
Hwi Ryun KWON ; Kyung Wan MIN ; Hee Jung AHN ; Hee Geum SEOK ; Jae Hyuk LEE ; Gang Seo PARK ; Kyung Ah HAN
Diabetes & Metabolism Journal 2011;35(4):364-373
BACKGROUND: There is controversy over whether aerobic or resistance exercise is more effective for improving endothelial function in type 2 diabetes mellitus (T2DM). This study was aimed to investigate the effects of an aerobic and resistance training program on endothelial function, and the influences of glycemic control, body weight changes, and aerobic capacity in T2DM. METHODS: Total 40 overweight women with T2DM were assigned into 3 groups: an aerobic exercise group (AEG, n=13), resistance exercise group (REG, n=12), and control group (CG, n=15), and followed either brisk walking for the AEG or resistance band training for the REG, 60 minutes per day, 5 days per week for 12 weeks with monitoring daily activity using accelerometers. We assessed endothelial function by flow-mediated dilation (FMD), and aerobic capacity by oxygen uptake at anaerobic threshold (AT_VO2) at baseline and following training program. RESULTS: The mean participants' age was 57.0+/-6.8 years, and body mass index (BMI) was 27.0+/-2.3 kg/m2. After intervention, FMD increased by 2.2+/-1.9% in AEG, which differed from REG and CG (P=0.002), despite of decreased body weight (BW) in both AG and RG (2.8+/-2.5%, P=0.002; 1.6+/-2.0%, P=0.017, respectively). A significant increased AT_VO2 and decreased HbA1c were found only in AEG. In all participants, FMD was changed with the significant relations to the AT_VO2 (r=0.348, P=0.035), but not to HbA1c levels or BW. CONCLUSION: Aerobic exercise appears to be more beneficial than resistance exercise for improving endothelial function in T2DM. In addition, aerobic capacity could be a better predictor of changes in FMD than BW and glycemic control.
Anaerobic Threshold
;
Body Mass Index
;
Body Weight
;
Body Weight Changes
;
Diabetes Mellitus, Type 2
;
Exercise
;
Female
;
Humans
;
Overweight
;
Oxygen
;
Resistance Training
;
Walking
6.Splenic Injury after Colonoscopy in Patient on Anti-Platelet Agents : A Case Study.
Se Jun KIM ; Hyun Taek SEO ; Il Eok JO ; Woo Hyuk KWON ; Hong Min PARK ; Yong Kyu LEE
Keimyung Medical Journal 2015;34(2):192-196
Colonoscopy is frequently used for lower GI tract screening tests. Although rare, splenic injury may develop in the high-risk patients on anticoagulants or antiplatelet agents. A 78-year-old female visited our hospital complaining of chest pain. She had taken antihyperlipidemic and antiplatelet agent with hyperlipidemia and 20%-stenosis in the left anterior descending artery. She was taken polypectomy after colonoscopy 4 years ago. The next day, after a follow-up colonoscopy for polypectomy, she complained epigastric and left upper abdominal discomfort. Pain intensity was not high, but next day, epigastric pain was increased, so coronary angiography was performed 2 days later using anticoagulants. Coronary angiography showed 40~50%-stenosis in the left anterior descending artery. Another antiplatelet agent was added. After 72 hours on colonoscopy, her pain was localized upper left abdominal area. Abdominal CT showed intracapsular bleeding in the spleen with a small amount of hemoperitoneum in the pelvis. Since her vital signs were stable, she was treated with conservative management. Her pain improved and discharged. One month later, she was taken Abdominal CT. CT showed the size of intracapsular fluid collection in the spleen was increased, but the whole fluid collection was liquidized. 2 weeks later, follow-up sonography showed the size of fluid collection conspicuously was reduced. The case reported herein is a splenic Injury after Colonoscopy in patient on antiplatelet agents.
Aged
;
Anticoagulants
;
Arteries
;
Chest Pain
;
Colonoscopy*
;
Coronary Angiography
;
Female
;
Follow-Up Studies
;
Hemoperitoneum
;
Hemorrhage
;
Humans
;
Hyperlipidemias
;
Lower Gastrointestinal Tract
;
Mass Screening
;
Pelvis
;
Platelet Aggregation Inhibitors
;
Spleen
;
Tomography, X-Ray Computed
;
Vital Signs
7.Deep Learning Techniques for Ear Diseases Based on Segmentation of the Normal Tympanic Membrane
Yong Soon PARK ; Jun Ho JEON ; Tae Hoon KONG ; Tae Yun CHUNG ; Young Joon SEO
Clinical and Experimental Otorhinolaryngology 2023;16(1):28-36
Objectives:
. Otitis media is a common infection worldwide. Owing to the limited number of ear specialists and rapid development of telemedicine, several trials have been conducted to develop novel diagnostic strategies to improve the diagnostic accuracy and screening of patients with otologic diseases based on abnormal otoscopic findings. Although these strategies have demonstrated high diagnostic accuracy for the tympanic membrane (TM), the insufficient explainability of these techniques limits their deployment in clinical practice.
Methods:
. We used a deep convolutional neural network (CNN) model based on the segmentation of a normal TM into five substructures (malleus, umbo, cone of light, pars flaccida, and annulus) to identify abnormalities in otoscopic ear images. The mask R-CNN algorithm learned the labeled images. Subsequently, we evaluated the diagnostic performance of combinations of the five substructures using a three-layer fully connected neural network to determine whether ear disease was present.
Results:
. We obtained the receiver operating characteristic (ROC) curve of the optimal conditions for the presence or absence of eardrum diseases according to each substructure separately or combinations of substructures. The highest area under the curve (0.911) was found for a combination of the malleus, cone of light, and umbo, compared with the corresponding areas under the curve of 0.737–0.873 for each substructure. Thus, an algorithm using these five important normal anatomical structures could prove to be explainable and effective in screening abnormal TMs.
Conclusion
. This automated algorithm can improve diagnostic accuracy by discriminating between normal and abnormal TMs and can facilitate appropriate and timely referral consultations to improve patients’ quality of life in the context of primary care.
8.The Gene Expression Profile Using cDNA microarray after treatment Arsenic Compound (As2O3, As4O6) in SiHa Cell.
Young Mi SEO ; Kyung Eun PARK ; Young Gi PANG ; Kook Chong KIM ; Serk Yong PARK ; Woong Shick AHN ; Jun Mo LEE ; Sung Eun NAMKOONG ; Do Gang KIM
Korean Journal of Obstetrics and Gynecology 2002;45(7):1191-1203
OBJECTIVE: To obtain information on the growth inhibition effect of arsenic compounds and gene expression profiles using cDNA microarray technique in SiHa cell lines. METHODS: We cultured 103 SiHa cell in 96 well plate and we investigated growth inhibition effects using MTT assay and also we performed gene expression profile experiment using 384 cDNA chip in SiHa cell after exposure of arsenics (As2O3, As4O6 - 1 (micro)M) for 48 hrs. RESULTS: Arsenics (As2O3, As4O6) inhibit the growth of SiHa cells (As2O3: 0.5, 1, 2, 3, 4, 5 (micro)M - 9.2, 56, 89, 93, 96, 96%, As4O6: 0.5, 1, 2, 3, 4, 5 (micro)M- 54, 84, 84, 85, 85, 87%) in 4 days culture. As2O3 and As4O6 induced apoptosis in SiHa cells. After exposure of As2O3, 47 genes were changed more than 2 times (eg, thymidylate synthetase, cyclin B1, CDC 20). In case of As4O6, 78 genes were changed more than 2 times (eg, CDC 20, cyclin B1, primase, proliferating cell nuclear antigen). CONCLUSION: we observed arsenic compound (As2O3, As4O6) inhibit the growth of SiHa cell. In gene expression profiling experiment, 78 genes was changed the expression level 2 times more than that of reference RNA after treatment of As4O6 and 47 genes after treatment of As2O3. Through these result, we thought more study need in functional genomics after arsenic treated cervical cancer cells.
Apoptosis
;
Arsenic*
;
Arsenicals
;
Cell Line
;
Centers for Disease Control and Prevention (U.S.)
;
Cyclin B1
;
DNA Primase
;
DNA, Complementary*
;
Gene Expression Profiling
;
Gene Expression*
;
Genomics
;
Oligonucleotide Array Sequence Analysis*
;
RNA
;
Thymidylate Synthase
;
Transcriptome*
;
Uterine Cervical Neoplasms
9.A Case of Scleroderma Preceded by Esophageal Carcinoma.
Joon Ho MOON ; Young Il SEO ; Hyun Ah KIM ; Ji Hyun HONG ; Gang JEON ; Jun Wook HA ; Seung Soon LEE ; Jae One JUNG ; Choong Kee PARK ; He Lim PARK
The Journal of the Korean Rheumatism Association 2004;11(4):403-406
Scleroderma is rare disease of unknown etiology characterized by fibrosis of skin and internal organs such as lung, gastrointestinal tract, kidney, heart and so on. The association between scleroderma and malignancy has been a controversy during recent years. We report a 77-year old female who had scleroderma and squamous cell carcinoma of esophagus. She was diagnosed as esophageal carcinoma and then sclerotic skin change developed in both hands and feet 3 months later. We present this case with a review of literatures.
Aged
;
Carcinoma, Squamous Cell
;
Esophageal Neoplasms
;
Esophagus
;
Female
;
Fibrosis
;
Foot
;
Gastrointestinal Tract
;
Hand
;
Heart
;
Humans
;
Kidney
;
Lung
;
Rare Diseases
;
Skin
10.A Case of Left Iliac Vein Thrombosis with May-Thurner Syndrome.
Gang Jee KO ; Hong Seog SEO ; Myung Gyu KIM ; Jung Yup KIM ; Soon Yong SUH ; Hwa Jung SUNG ; Sang Woo PARK ; Chang Gyu PARK ; Dong Joo OH
Korean Journal of Hematology 2004;39(2):113-117
Iliac vein compression syndrome (May-Thurner syndrome) is caused by compression of the left iliac vein against the fifth lumbar vertebra by the right iliac artery, resulting in impaired venous return and left iliofemoral thrombosis. We experienced a case of a 68-year-old woman who showed sudden left lower extremity edema. By the Doppler sonogram, deep vein thrombosis of left lower extremity was detected. It was involved only left side and extended to iliac vein level. In the venogram, spur like projection was noticed on left iliac vein. Through endovascular thrombectomy, thrombolysis and angioplasty, venous return was completely restored. We report a case of May-Thurner syndrome who was treated with various endovascular management successfully.
Aged
;
Angioplasty
;
Edema
;
Female
;
Humans
;
Iliac Artery
;
Iliac Vein*
;
Lower Extremity
;
May-Thurner Syndrome*
;
Spine
;
Thrombectomy
;
Thrombosis*
;
Venous Thrombosis