1.A Clinical Study of Hand Tumors
Duck Yun CHO ; Jai Gon SEO ; Joong Myung LEE ; Taik Kun AHN ; Jung Ho SEO
The Journal of the Korean Orthopaedic Association 1987;22(6):1343-1348
Hand tumorsare many and varied, although benign tumors are common. The pathology and histology of these tumors are not unlike these characteristics of the tumor when it occurs elsewhere. Early diagnosis and proper treatment of all hand tumors have been emphasized since the growth of tumors and pain can cause disturbance of intrinsic function of the hand. For the period of 10 years from 1977 to 1986, 105 cases of hand tumor were treated surgically and the results of clinical observation were as follows ; l. Among 105 cases, benign tumor was 101 cases(96.2%) Bone origin tumor was 20 cases, in which enchondroma and enchondromatosis were 17 cases(70%). Soft tissue origin tumor was 85 cases, in which ganglion was 54 cases(63.5%). 2. Among 105 cases, 42 cases were male and 63 cases were female. In age distribution, it showed even distribution. 3. In the duration of wymptom, 51 cases were below 1 year(48.6%). 4. The tumor occured 85 cases in soft tissue, 14 in phalanx, 7 in metacarpal and 1 in carpal bone. 5. The tumors were treated by excision or curettage and bone graft with good improvement, but postoperatively recurred in 2 cases of Hemangioma. Ampuation was performed in 3 cases of malignant tumors without recurrence.
Age Distribution
;
Carpal Bones
;
Chondroma
;
Clinical Study
;
Curettage
;
Early Diagnosis
;
Enchondromatosis
;
Female
;
Ganglion Cysts
;
Hand
;
Hemangioma
;
Humans
;
Male
;
Pathology
;
Recurrence
;
Transplants
2.Pulse oximetry during shunt surgery in pediatric patients with tetralogy of fallot.
Hung Kun OH ; Wyun Kon PARK ; Soon Ho NAM ; Seo Ouk BANG
Yonsei Medical Journal 1989;30(1):12-15
Pulse oximetry is a noninvasive technique for measuring O2 saturation (SpO2) continuously. We applied pulse oximetry to 9 pediatric patients with tetralogy of Fallot during shunt surgery. Arterial oxygen tensions (PaO2) and saturations (SaO2) were also measured at the time of postinduction, just before the shunt, after the shunt and at the end of the operation. The SpO2 and SaO2 levels were identically changed in all 4 periods. The PaO2 was increased a little without statistical significance after the shunt procedure and at the end of the operation compared with the values before the shunt. However, SaO2 values increased with statistical significance after the shunt procedure and SpO2 values also showed similar increases with significance. In conclusion, continuous monitoring of SpO2 by pulse oximetry, instead of PaO2, is a very useful and reliable method to assess the improvement of perfusion after shunt, particularly in cyanotic cases.
Child, Preschool
;
Human
;
Infant
;
Intraoperative Period
;
*Oximetry
;
Oxygen/blood
;
Tetralogy of Fallot/blood/*surgery
3.Changes in Levels of Epinephrine and Norepinephrine before during and after Cardiopulmonary Bypass.
Wyun Kon PARK ; Soon Ho NAM ; Seo Ouk BANG ; Hung Kun OH
Korean Journal of Anesthesiology 1990;23(1):14-20
It is believed that catecholamine secretion is increased during cardiopulmonary bypass. However, the periods of maximum increase in catecholamine levels during cardiopulmonary bypass are different among several authors. 15 patients having valvular surgery were studied. Plasma epinephrine and norepine- phrine were determined by high performance liquid chromatography at 8 stages of the operation. During bypass plasma catecholamine levels continued to rise and maximally increased until aortic cross clamp off, and decreased gradually. Norepinephrine also showed the same results initially, but then increased gradually after the end of bypass. During bypass the maximum increases in epinephrine and norepinephrine were sixfold and twofold respectively in comparison with the levels prior to induction, which suggests that the predominant humoral response to cardiopulmonary bypass appears to be adrenomedullary release of epinephrine. The catecholamine levels at the period of aortic cross clamp off was higher than that of the lowest body temperature. There was no correlation between the increases in catecholamines and mean arterial pressure. Temperautures and eatecholamines also showed no correlations.
Arterial Pressure
;
Body Temperature
;
Cardiopulmonary Bypass*
;
Catecholamines
;
Chromatography, Liquid
;
Epinephrine*
;
Humans
;
Norepinephrine*
;
Plasma
4.(99m)Tc-HDP Bone Scintigraphy Finding of Metastatic Renal Cell Carcinoma Bone Lesion Changed from Hot to Cold Lesion: Comparing with (18)F-FDG PET/CT.
Young Duk SEO ; Seong Min KIM ; Kun Ho KIM
Nuclear Medicine and Molecular Imaging 2009;43(6):588-591
A 26-year-old man with renal cell carcinoma underwent (99m)Tc-HDP bone scintigraphy for detecting bony metastasis after left total nephrectomy for renal cell carcinoma. (99m)Tc-HDP bone scintigraphy showed small hot lesion in the first lumbar spine. About 12 months later, he underwent spinal MRI for lower back pain. A large mass was seen around spinous process of the first lumbar spine (L1) on spinal MRI and confirmed as metastatic renal cell carcinoma by bone biopsy. (99m)Tc-HDP bone scintigraphy and (18)F-FDG PET/CT were underwent for further evaluation. (99m)Tc-HDP bone scintigraphy showed cold lesion in the first lumbar spine which was initially hot and newly developed hot lesion in the twelfth thoracic spine, and which were shown as hypermetabolic lesions in (18)F-FDG PET/CT. We report a case of bony metastasis from renal cell carcinoma which is changed from hot lesion to cold lesion in (99m)Tc-HDP bone scintigraphy and compare with (18)F-FDG PET/CT.
Adult
;
Biopsy
;
Carcinoma, Renal Cell
;
Cold Temperature
;
Humans
;
Low Back Pain
;
Neoplasm Metastasis
;
Nephrectomy
;
Spine
5.A Discrepancy between (131)I-Metaiodobenzylguanidine ((131)I-MIBG) Scintigraphy and (18)F-FDG PET/CT after (131)I-MIBG Therapy in a Patient with Recurred Malignant Pheochromocytoma.
Kun Ho KIM ; Seong Min KIM ; Young Duk SEO
Nuclear Medicine and Molecular Imaging 2009;43(6):582-587
A 59-year-old woman who was diagnosed with malignant pheochromocytoma underwent (18)F-fluorodeoxyglucose positron emission tomography/computed tomography ((18)F-FDG PET/CT). She had undergone left adrenalectomy for pheochromocytoma 4 years previously. Recent multiple metastatic pulmonary nodules were noted on the chest X-ray. After treatment with (131)I-metaiodobenzylguanidine ((131)I-MIBG) with 7.4 GBq, post-therapy (131)I-MIBG scintigraphy depicted multiple distant metastases including lung, liver, abdominal para-aortic and mesenteric lymph nodes. (18)F-FDG PET/CT also depicted multiple metastases in lung, liver, and abdominal para-aortic lymph nodes, but some lesions were not shown. In this case, (131)I-MIBG scintigraphy found additional lesions in metastatic malignant pheochromocytoma.
Adrenalectomy
;
Electrons
;
Female
;
Humans
;
Liver
;
Lung
;
Lymph Nodes
;
Middle Aged
;
Neoplasm Metastasis
;
Pheochromocytoma
;
Thorax
6.Usefulness of (18)F-FDG PET/CT in Locoregional Recurrence of Differentiated Thyroid Cancer: Comparison PET/CT to PET and Neck Ultrasonography for Biopsy-proven Lesions.
Kun Ho KIM ; Min Ho SHONG ; Young Duk SEO ; Seong Min KIM
Nuclear Medicine and Molecular Imaging 2009;43(5):411-420
PURPOSE: The aim of this study was to investigate the usefulness of (18)F-FDG PET/CT with neck ultrasonography (neck US) in patients with recurrent, papillary thyroid cancer. MATERIAL AND METHODS: This retrospective study (December 2006 to April 2008) enrolled sixty-one patients (ninety-one lesions) who underwent high-dose (131)I-ablation therapy after total thyroidectomy, and evaluated recurred papillary thyroid cancer. All lesions were confirmed by histopathology and compared histopathologic findings to PET, PET/CT, and neck US findings. RESULTS: In sixty-one patients (57 women, 4 men; age range, 24-81 years, mean 49 years; 61 papillary carcinomas), the sensitivity, specificity, accuracy of (18)F-FDG PET/CT was 87.2%, 64.0%, 78.1% on a patient basis and 92.3%, 66.7%, 80.9% on a lesion basis, respectively. The sensitivity, specificity, accuracy of (18)F-FDG PET was 71.8% (p=0.03), 59.0% (p=1.00), 67.2% (p=0.03) on a patient basis and 78.8% (p<0.01), 64.1% (p=1.00), 72.5% (p=0.02) on a lesion basis, respectively. The sensitivity, specificity, accuracy of neck US was 71.1% (p=0.07), 52.2% (p=0.75), 63.9% (p=0.05) on a patient basis and 71.2% (p<0.01), 61.5% (p=1.00), 67.0% (p=0.06) on a lesion basis, respectively. Combined (18)F-FDG PET/CT with neck US improved the sensitivity, specificity, accuracy to 94.7% (p=0.50), 82.6% (p=0.13), 90.2% (p=0.03) on a patient basis and 96.2% (p=0.50), 89.7% (p<0.01), 93.4% (p<0.01) on a lesion basis, respectively. CONCLUSION: (18)F-FDG PET/CT demonstrated significantly higher sensitivity than neck US for the detection of recurred papillary thyroid cancer lesions. Furthermore, combined (18)F-FDG PET/CT with neck US showed more improved sensitivity, specificity, accuracy for diagnosis of recurrent papillary thyroid cancer.
Female
;
Humans
;
Neck
;
Recurrence
;
Retrospective Studies
;
Sensitivity and Specificity
;
Thyroglobulin
;
Thyroid Gland
;
Thyroid Neoplasms
;
Thyroidectomy
7.Limited Posterior Approach for the Surgical Treatment of Intraarticular Fracture of Calcaneus.
Yun Seok HYUN ; Kyung Won SONG ; Sung Il SHIN ; Jin Young LEE ; Seung Young LEE ; Gab Lae KIM ; Kun Ho SHIN ; Eun Ho SEO ; Tae Seo BAN
Journal of Korean Foot and Ankle Society 2007;11(1):79-85
PURPOSE: To evaluate the clinical efficacy of the limited posterior approach for the surgical treatment of intraarticular fracture of calcaneus. MATERIALS AND METHODS: From March 2000 to February 2006, we studied retrospectively 186 patients, 203 cases who were treated with open reduction and internal fixation through limited posterior approach and were followed up for more than 1 year. The clinical results were evaluated with Creighton-Nebraska score and circle draw test after 1 year. We checked simple AP, lateral, axial and Broden's view preoperatively and 1 year after surgery, and compared Bohler angle and Gissane angle. RESULTS: By Creighton-Nebraska score, Sanders type 2 was 86.4, type 3 was 74.3, type 4 was 62.4. And by circle draw test, type 2 was 8.9 cm, type 3 was 7.2 cm, type 4 was 5.9 cm. Bohler angle and Gissane angle were 7.6 degrees, 102.4 degrees, and it increased to 23.5 degrees, 128.6 degrees after postoperative 1 year. CONCLUSION: Limited posterior approach for the surgical treatment of intraarticular fracture of calcaneus was considered to an effective treatment modality.
Calcaneus*
;
Humans
;
Intra-Articular Fractures*
;
Retrospective Studies
8.High Frequency Jet Ventilation in Tracheal Tumor Surgery.
Wyun Kon PARK ; Seo Ouk BANG ; Soo Ho NAM ; Mi Na KWON ; Hung Kun OH ; Chung Hyun CHO
Korean Journal of Anesthesiology 1989;22(2):329-335
A 38-year old male patient underwent tracheal reconstruction because of a tracheal tumor. A CT scan showed that the mass was located 5 cm above the carina, the size was 2x1.5cm, and there was a 50% narrowing of the stenotic segment. After endotracheal intubation (1.D. 8mm), a pediatric suction catheter (lenght:40cm, diameter: 2mm) was inserted with a stylet at the side of the tube to pass the stenotic segment with fiberoptic bronchoscopic guidance. Conventional ventilation with an inhalation agent was performed and HFJV was started just prior to the tracheal incision. A driving gas pressure of 1 kg/cm, respiratory rate of 120/min., I:E ratio fo 1:1, and Fio2 of 1.0 were applied through the suction catheter. Ten minutes after HFJV, PaCO2showed 50mmHg. Hypercabia was relieved by increasing the driving gas pressure from 1kg/cm(2) to 1.5 kg/cm(2). HFJV was performed for one and a half hours. During the procedure, blood gas analyses were perfomed frequently and all results revealed an adequate ventilatory status. After completing the end to end anastomosis, conventional ventilation was started until surgery was ended. The patient's course proceeded uneventfully and he was discharged 13 days after surgery.
Adult
;
Blood Gas Analysis
;
Catheters
;
High-Frequency Jet Ventilation*
;
Humans
;
Inhalation
;
Intubation, Intratracheal
;
Male
;
Respiratory Rate
;
Suction
;
Tomography, X-Ray Computed
;
Ventilation
9.Antioxidative effects of fermented sesame sauce against hydrogen peroxide-induced oxidative damage in LLC-PK1 porcine renal tubule cells.
Jia Le SONG ; Jung Ho CHOI ; Jae Hoon SEO ; Jeung Ha KIL ; Kun Young PARK
Nutrition Research and Practice 2014;8(2):138-145
BACKGROUND/OBJECTIVES: This study was performed to investigate the in vitro antioxidant and cytoprotective effects of fermented sesame sauce (FSeS) against hydrogen peroxide (H2O2)-induced oxidative damage in renal proximal tubule LLC-PK1 cells. MATERIALS/METHODS: 1,1-diphenyl-2-picrylhydrazyl (DPPH), hydroxyl radical (*OH), and H2O2 scavenging assay was used to evaluate the in vitro antioxidant activity of FSeS. To investigate the cytoprotective effect of FSeS against H2O2-induced oxidative damage in LLC-PK1 cells, the cellular levels of reactive oxygen species (ROS), lipid peroxidation, and endogenous antioxidant enzymes including catalase (CAT), superoxide dismutase (SOD), and glutathione peroxidase (GSH-px) were measured. RESULTS: The ability of FSeS to scavenge DPPH, *OH and H2O2 was greater than that of FSS and AHSS. FSeS also significantly inhibited H2O2-induced (500 microM) oxidative damage in the LLC-PK1 cells compared to FSS and AHSS (P < 0.05). Following treatment with 100 microg/mL of FSeS and FSS to prevent H2O2-induced oxidation, cell viability increased from 56.7% (control) to 83.7% and 75.6%, respectively. However, AHSS was not able to reduce H2O2-induced cell damage (viability of the AHSS-treated cells was 54.6%). FSeS more effectively suppressed H2O2-induced ROS generation and lipid peroxidation compared to FSS and AHSS (P < 0.05). Compared to the other sauces, FSeS also significantly increased cellular CAT, SOD, and GSH-px activities and mRNA expression (P < 0.05). CONCULUSIONS: These results from the present study suggest that FSeS is an effective radical scavenger and protects against H2O2-induced oxidative damage in LLC-PK1 cells by reducing ROS levels, inhibiting lipid peroxidation, and stimulating antioxidant enzyme activity.
Animals
;
Catalase
;
Cats
;
Cell Survival
;
Glutathione Peroxidase
;
Hydrogen Peroxide
;
Hydrogen*
;
Hydroxyl Radical
;
Lipid Peroxidation
;
LLC-PK1 Cells
;
Oxidative Stress
;
Reactive Oxygen Species
;
RNA, Messenger
;
Sesamum*
;
Superoxide Dismutase
;
Swine
10.Serum nitrotyrosine concentration in dogs with myxomatous mitral valve disease.
Jun Seok KIM ; Jun Seok PARK ; Hyung Jin PARK ; Kyoung Won SEO ; Kun Ho SONG
Korean Journal of Veterinary Research 2017;57(1):17-21
The aim of this study was to compare serum nitrotyrosine concentrations in healthy dogs with those in dogs with myxomatous mitral valve disease (MMVD). Fifty client-owned dogs were included in this study. Based on echocardiographic results, dogs were categorized into healthy (control), mild-, moderate-, and severe-MMVD groups. Serum nitrotyrosine concentrations were determined from enzyme-linked immunosorbent assays. No significant difference between control dogs and dogs with mild MMVD was detected (p = 0.31). However, dogs with moderate MMVD had significantly higher serum concentrations of nitrotyrosine (p = 0.04) than that in controls, and dogs with severe MMVD had significantly lower serum concentrations of nitrotyrosine (p = 0.03) than that in moderate MMVD dogs. There were negative correlations in the association of serum nitrotyrosine with age (n = 30, R²= 0.067, p = 0.27), left atrial-to-aortic root diameter ratio (n = 30, R²= 0.02, p = 0.57), and platelet count (n = 30, R²= 0.39, p = 0.003); however, only the platelet correlation was significant. Among dogs with MMVD, there was no significant difference in serum nitrotyrosine concentration between males and females. The results of this study suggest that tyrosine nitration end-products might be potential biomarkers for the detection of MMVD in dogs.
Animals
;
Biomarkers
;
Blood Platelets
;
Dog Diseases
;
Dogs*
;
Echocardiography
;
Enzyme-Linked Immunosorbent Assay
;
Female
;
Humans
;
Male
;
Mitral Valve*
;
Peroxynitrous Acid
;
Platelet Count
;
Tyrosine