1.A clinical study of thyroglossal duct cyst and fistula.
Sung Tak JEONG ; Jong Soo JOO ; Sang Hyo KIM
Journal of the Korean Surgical Society 1992;42(6):748-754
No abstract available.
Fistula*
;
Thyroglossal Cyst*
2.A Clinical Study of Tarsometatarsal Joint Injuries
Chong Ill YOO ; Chul Sung LEE ; Jeong Tak SUH
The Journal of the Korean Orthopaedic Association 1980;15(3):546-552
Authors reviewed and clinically analysed 34 cases of trasometatarsal joint injury treated at the Orthopedic department of Pusan National University Hospital during the period from January 1975 to December 1979, and following results were obtained. 1. The incidence was higher in male and the active age group of 20-40. 2. Among the causes, traffic accidents were 22 cases (64.7%) and crushing injuries in the industrial field were 6 cases (17.6%). 3. Fracure-dislocations were higher than simple dislocation. 4. According to the Wilsons Classifications, the injuries were classified as follows. First stage of supination (51), 11 cases (32.4%): First stage of pronation (P1), 8 cases (23.5%): Plantar-flexion alone (PF), 4 cases (11.8%): Second stage of supination (S2), 3 cases (8.8%): Second stage of pronation (P2), 2 casese (5.9%): And finally direct crushing injuries,were 6 cases (17.6%): 5. Associated injuries were fracture of the metatarsal bone in 15 cases (44.1%), fractures of the tarsal bone in 7 cases (20.6%) and severe soft tissue injuries in 6 cases (17.6%), 6. The operative treatments with early anatomical reduction were obtained better results than conservative treatment. 7. As complications, pain in 31 cases (91.2%), bony deformity in 26 cases (76.5%), motion limitation in 32 cases (94.1%), skin necrosis in 3 cases (8.8%) and traumatic arthritis in 23 cases (67.6%) were observed.
Accidents, Traffic
;
Arthritis
;
Busan
;
Classification
;
Clinical Study
;
Congenital Abnormalities
;
Dislocations
;
Humans
;
Incidence
;
Joints
;
Male
;
Metatarsal Bones
;
Necrosis
;
Orthopedics
;
Pronation
;
Skin
;
Soft Tissue Injuries
;
Supination
;
Tarsal Bones
3.Surgical Treatment of Lower Lumbar Burst Fractures.
Won Sik CHOY ; Whoan Jeong KIM ; Ha Yong KIM ; Young Wan KIM ; In Sung HWANG ; Sang Bo TAK
The Journal of the Korean Orthopaedic Association 1997;32(5):1173-1180
Burst fractures of lower lumbar spine are rare and have not been well delineated in the literature. Treatment and management considerations for lower lumbar burst fractures are somewhat different from the rest of spine because this area only has the cauda equina and nerve roots. The purpose of this study was to analyse the clinical and radiological results and to determine operative approach. The authors analysed the 16 patients who had been treated with spinal instrumentation (Cotrel- Dubousset, Danek, Kaneda) from Dec. 1990 to Dec. 1994, and following results were obtained. 1. The classification of fracture by Francis-Denis method was B type in 7 cases, A type in 6 cases, E type in 2 cases, and D type in 1 case. 2. By the load-sharing classification, six points or less in 11 patients (first group) and seven or more in 5 patients (second group). In first group lordosis was corrected from 20.4degreespreoperatively to 32.6degrees postoperatively and 24.1degrees at the end of follow-up. In second group lordosis was corrected from 14.8degrees preoperatively to 21.3degrees postoperatively and 0.8degrees at the end of follow-up. 3. The short segmental fixation through posterior approach yielded good result in the first group, but poor result in the second group with complications including two cases of loss of reduction and one case of screw breakage. As a result, posterior approach might be more perferable in first group and anterior approach in the second group.
Animals
;
Cauda Equina
;
Classification
;
Follow-Up Studies
;
Humans
;
Lordosis
;
Spine
4.Clinical outcome of high-dose-rate interstitial brachytherapy in patients with oral cavity cancer.
Sung Uk LEE ; Kwan Ho CHO ; Sung Ho MOON ; Sung Weon CHOI ; Joo Yong PARK ; Tak YUN ; Sang Hyun LEE ; Young Kyung LIM ; Chi Young JEONG
Radiation Oncology Journal 2014;32(4):238-246
PURPOSE: To evaluate the clinical outcome of high-dose-rate (HDR) interstitial brachytherapy (IBT) in patients with oral cavity cancer. MATERIALS AND METHODS: Sixteen patients with oral cavity cancer treated with HDR remote-control afterloading brachytherapy using 192Ir between 2001 and 2013 were analyzed retrospectively. Brachytherapy was administered in 11 patients as the primary treatment and in five patients as salvage treatment for recurrence after the initial surgery. In 12 patients, external beam radiotherapy (50-55 Gy/25 fractions) was combined with IBT of 21 Gy/7 fractions. In addition, IBT was administered as the sole treatment in three patients with a total dose of 50 Gy/10 fractions and as postoperative adjuvant treatment in one patient with a total of 35 Gy/7 fractions. RESULTS: The 5-year overall survival of the entire group was 70%. The actuarial local control rate after 3 years was 84%. All five recurrent cases after initial surgery were successfully salvaged using IBT +/- external beam radiotherapy. Two patients developed local recurrence at 3 and 5 months, respectively, after IBT. The acute complications were acceptable (< or =grade 2). Three patients developed major late complications, such as radio-osteonecrosis, in which one patient was treated by conservative therapy and two required surgical intervention. CONCLUSION: HDR IBT for oral cavity cancer was effective and acceptable in diverse clinical settings, such as in the cases of primary or salvage treatment.
Brachytherapy*
;
Humans
;
Mouth Neoplasms
;
Mouth*
;
Radiotherapy
;
Recurrence
;
Retrospective Studies
5.Pathologic Analysis of Endomyocardial Biopsies in Heart Transplantation.
Mee Hye OH ; Jeong Wook SEO ; Kook Yang PARK ; Young Tak LEE ; Yoon Seop JEONG ; Suk Keun HONG ; Joon Ryang RHO ; Byung Hee OH ; Sung Sook KIM
Korean Journal of Pathology 1998;32(2):104-114
Endomyocardial biopsy (EMB) is a valuable diagnostic procedure for the surveillance of cardiac allograft rejection. Interpretation of individual cases is still problematic due to variations of findings for grading of rejection and other associated lesions. We reevaluated an experience on endomyocardial biopsies to develop better diagnostic criteria for rejection and other complications. Immunohistochemical studies against cytokines were performed to assess the usefulness of the method for the diagnosis or researches. A total of 249 EMBs taken from 33 cardiac allograft recipients were reviewed. There were 25 males and 8 females. Dilated cardiomyopathy was present (24 cases) and valvular heart disease (4 cases), restrictive cardiomyopathy (3 cases) were also common conditions. We applied the grading system of the International Society for Heart Transplantation (ISHT) for the assessment of acute cellular rejection. Grades of 0, 1A, 1B, 2, 3A and 3B were 39.0%, 28.1%, 11.2%, 11.5%, 12.4% and 1.6% respectively, but 3.2% were inadequate. Thirty five episodes of grade 3A or 3B were present in 17 patients. The response to therapy was assessed using a next follow up biopsy, which revealed resolving or resolved rejection in 85% of patients. The intensity of immunohistochemical stains for IL-6 and TNF-alpha was increased in proportion to the histologic grade but Quilty lesion and cardiomyopathy also showed a positive reaction. The other pathologic findings were ischemic change, previous biopsy site, interstitial edema and fibrosis, and Quilty lesion. These findings showed usefulness of endomyocardial biopsy not only for the evaluation of cardiac allograft rejection but also for the diagnosis of associated cardiac lesions. Immunohistochemical study of the cytokines was related to the degree of inflammation rather than degree of rejection.
Allografts
;
Biopsy*
;
Cardiomyopathies
;
Cardiomyopathy, Dilated
;
Cardiomyopathy, Restrictive
;
Coloring Agents
;
Cytokines
;
Diagnosis
;
Edema
;
Female
;
Fibrosis
;
Follow-Up Studies
;
Heart Transplantation*
;
Heart Valve Diseases
;
Heart*
;
Humans
;
Inflammation
;
Interleukin-6
;
Male
;
Tumor Necrosis Factor-alpha
6.Clinical study for Patients with Cervical Cancer who had undergone Radical Hysterectomy.
Seong Un JEONG ; Sung Joong CHO ; Jang Hwan KIM ; Nam Woo LEE ; Kyung Jin KIM ; Mi Hae PARK ; In Tak HWANG ; Ji Hak JUNG
Korean Journal of Obstetrics and Gynecology 1999;42(8):1671-1676
OBJECTIVE: The purpose of this study was to analyze the clinical study for patients with cervical cancer who had undergone radical hysterectomy. METHOD: The subjects of this study were one hundred and sixty two patients with cervical cancer who had undergone radical hysterectomy at Eulji Medical College Hospital, Taejon, Korea, from January 1983 to December 1992. We reviewed the medical record retrospectively and analyzed the data. RESULT: The distribution of patients by age was found in the order of 50 decade and 60 decade, 40 decade. Those by the clinical stages were as follows: Stage Ia, 12 cases(7.4%); Stage Ib, 84 cases(51.9%); Stage IIa, 39 cases(24.1%); Stage IIb 27 cases(16.7%). The results of histopathologic type were distributed as follows: squamous cell carcinoma was 91.9%, adenocarcinoma was 4.9% and adenosquamous cell carcinoma was 3.1%. The histologic subtypes of squamous cell carcinoma(149 cases) were as follows: Large cell non-keratinizing type was 75.9%, large cell keratinizing type was 14.8% and small cell type was 1.2%. The frequancy of lymph node metastasis was 22.9% in stage I and 31.8% in stage II. The overall incidence of lymph node metastasis was 26.4%. The frequency of external radiation therapy done after radical hysterectomy was 63.5% in stage I and 75.8% in stage II. The 5-year survival rate was as follows: The Ia was 100%; Stage Ib, 95.2%(4cases); Stage IIa, 87.2%(5cases); Stage IIb, 77.8%(6cases). The incidence of recurrence was 7.4% and recurrent sites were vaginal stump , rectum and pelvic wall. CONCLUSION: The highest incidence of cervix cancer in age distribution was 50 decade(30.9%) and 60 decade(30.9%). The most common clinical stage was Ib(51.9%) and most frequent pathologic type was squamous cell carcinoma(91.9%). The overall incidence of lymph node metastasis was 26.4% and The most common site of recurrence was vaginal stump. The 5-year survival rate was 100% in the stage Ia, 95.2% in the stage Ib, 87.2% in the stage IIa, 77.8% in the stage IIb.
Adenocarcinoma
;
Age Distribution
;
Carcinoma, Squamous Cell
;
Daejeon
;
Humans
;
Hysterectomy*
;
Incidence
;
Korea
;
Lymph Nodes
;
Medical Records
;
Neoplasm Metastasis
;
Rectum
;
Recurrence
;
Retrospective Studies
;
Survival Rate
;
Uterine Cervical Neoplasms*
7.Radiofrequency Ablation of Renal Tumors: Our Experience.
Jeong Ho KIM ; Tae Hyo KIM ; Soo Dong KIM ; Ki Soo LEE ; Gyung Tak SUNG
Korean Journal of Urology 2011;52(8):531-537
PURPOSE: To report our results of nephron-sparing radiofrequency ablation (RFA) of renal tumors. MATERIALS AND METHODS: Since August 2004, 49 patients with renal tumors were treated with either percutaneous or laparoscopic RFA. All patients underwent preoperative imaging with contrast-enhanced computed tomography (CT) or magnetic resonance imaging (MRI) and were suspected to have renal cell carcinoma. The follow-up for each patient included a physical examination, chest radiography, liver function tests, and a contrast-enhanced CT or MRI. To confirm the pathologic criteria of complete ablation, 30 patients underwent 6-month or 1-year follow-up biopsy. Recurrence was defined as growth of the tumor or any new enhancing portions at 3 months after confirmed nonenhancement of the initial RFA lesion. RESULTS: Technical success was achieved in 46/49 cases (94%). The mean tumor size was 2.4 cm and the mean follow-up period was 31.7 months (range, 6-68 months). Of 49 patients, repeated RFA was necessary in 7 patients (14%). Three patients were found to have recurrence at various follow-up intervals. Twenty-three patients (47%) experienced complications, and all but one necessitated intervention. No distant metastasis was found in any cases, and all patients are alive and are being serially followed up. CONCLUSIONS: Percutaneous or laparoscopic RFA is considered to be a useful treatment for selected patients with small renal masses and for nephron-sparing. With a mean follow-up of 31.7 months, our intermediate data suggest excellent therapeutic outcome with RFA with effective local tumor control and preservation of renal function. The ultimate role of this modality will continue to evolve and warrants further studies.
Biopsy
;
Carcinoma, Renal Cell
;
Catheter Ablation
;
Follow-Up Studies
;
Humans
;
Kidney Neoplasms
;
Liver Function Tests
;
Magnetic Resonance Imaging
;
Neoplasm Metastasis
;
Physical Examination
;
Recurrence
;
Surgical Procedures, Minimally Invasive
;
Thorax
8.A Case of Trigeminal Neuropathy Associated with Mixed Connective Tissue Disease.
Seok Joon SHIN ; Tak Yong KIM ; Jun Ki MIN ; Sang Heon LEE ; Yeon Sik HONG ; Sung Hwan PARK ; Jeong Lim MOON ; Chul Soo CHO ; Ho Youn KIM
The Journal of the Korean Rheumatism Association 1997;4(2):191-196
The occurrence of a trigeminal neuropathy associated with connective tissue disease is rare. Trigeminal neuropathy in connective tissue disease is predominantly sensory and it is characterized by numbness, hypesthesia, slurred speech, and touch pain. Although the pathogenesis of trigeminal neuropathy associated with connective tissue disease remains obscure, the main pathologic findings are vasculitis and neuritis. A case of trigeminal neuropathy associated with mixed connective tissue disease is described, and the incidence, symptoms, pathophysiology, treatment of the disease is discussed.
Connective Tissue Diseases
;
Hypesthesia
;
Incidence
;
Mixed Connective Tissue Disease*
;
Neuritis
;
Trigeminal Nerve Diseases*
;
Vasculitis
9.Effects of bodily retraction of mandibular incisors versus mandibular setback surgery on pharyngeal airway space: A comparative study.
Byeong Tak KEUM ; Sung Hwan CHOI ; Yoon Jeong CHOI ; Hyoung Seon BAIK ; Kee Joon LEE
The Korean Journal of Orthodontics 2017;47(6):344-352
OBJECTIVE: The purpose of this study was to compare the changes induced in the pharyngeal airway space by orthodontic treatment with bodily retraction of the mandibular incisors and mandibular setback surgery without extraction. METHODS: This retrospective study included 63 adult patients (32 men and 31 women). Thirty-three patients who had been treated via four-bicuspid extraction and bodily retraction of the mandibular incisors (incisor retraction, IR group) were compared with 30 patients who had been treated via mandibular setback surgery (MS group) without extraction. Lateral cephalograms were acquired and analyzed before (T1) and after treatment (T2). RESULTS: The superior pharyngeal airway space did not change significantly in either group during treatment. The middle pharyngeal airway space decreased by 1.15 ± 1.17 mm and 1.25 ± 1.35 mm after treatment in the IR and MS groups, respectively, and the decrease was comparable between the two groups. In the MS group, the inferior pharyngeal airway space (E-IPW) decreased by 0.88 ± 1.67 mm after treatment (p < 0.01). The E-IPW was larger in the MS group than in IR group at T1, but it did not differ significantly between the two groups at T2. No significant correlation was observed between changes in the pharyngeal airway space and the skeletal and dental variables in each group. CONCLUSIONS: The middle pharyngeal airway space decreased because of the posterior displacement of the mandibular incisors and/or the mandibular body. The E-IPW decreased only in the MS group because of the posterior displacement of only the mandibular body.
Adult
;
Humans
;
Incisor*
;
Male
;
Retrospective Studies
10.Gene Expression Pattern Analysis via Latent Variable Models Coupled with Topographic Clustering.
Jeong Ho CHANG ; Sung Wook CHI ; Byoung Tak ZHANG
Genomics & Informatics 2003;1(1):32-39
We present a latent variable model-based approach to the analysis of gene expression patterns, coupled with topographic clustering. Aspect model, a latent variable model for dyadic data, is applied to extract latent patterns underlying complex variations of gene expression levels. Then a topographic clustering is performed to find coherent groups of genes, based on the extracted latent patterns as well as individual gene expression behaviors. Applied to cell cycle regulated genes of the yeast Saccharomyces cerevisiae, the proposed method could discover biologically meaningful patterns related with characteristic expression behavior in particular cell cycle phases. In addition, the display of the variation in the composition of these latent patterns on the cluster map provided more facilitated interpretation of the resulting cluster structure. From this, we argue that latent variable models, coupled with topographic clustering, are a promising tool for explorative analysis of gene expression data.
Cell Cycle
;
Cluster Analysis*
;
Gene Expression Profiling*
;
Gene Expression*
;
Saccharomyces cerevisiae
;
Yeasts