1.A case of coexisting Behcet's disease and ankylosing spondylitis.
Hyun Kyu CHANG ; Een Hee CHO ; Jeong Uk KIM ; Hwan HERR
The Korean Journal of Internal Medicine 2000;15(1):93-95
Behcet's disease (BD) is a chronic inflammatory condition involving several organs, such as skin, mucous membrane, eye, joint, intestine, lung and central nervous system. Ankylosing spondylitis (AS) is a prototype of seronegative spondyloarthropathy, and a chronic systemic inflammatory disorder of the axial skeleton, mainly affecting the sacroiliac joint and spine. In the latter, systemic complications may develop in addition to joint involvement. The coexistence of BD and AS has been rarely reported in the literature. The inclusion of BD among seronegative spondyloarthritides and whether sacroiliitis (SI) develops in BD are still being debated. We describe a 28-year-old man who has fulfilled the diagnostic criteria for BD and AS as well.
Adult
;
Angiography
;
Anti-Inflammatory Agents/administration +ACY- dosage
;
Behcet's Syndrome/drug therapy
;
Behcet's Syndrome/diagnosis+ACo-
;
Behcet's Syndrome/complications+ACo-
;
Case Report
;
Drug Therapy, Combination
;
Human
;
Magnetic Resonance Imaging
;
Male
;
Spondylitis, Ankylosing/drug therapy
;
Spondylitis, Ankylosing/diagnosis+ACo-
;
Spondylitis, Ankylosing/complications+ACo-
;
Treatment Outcome
2.RECONSTRUCTION OF INTRAORAL JAW DEFECTS WITH CORTICOCANCELLOUS BLOCK OF MANDIBULAR SYMPHYSIS.
Young Kyun KIM ; Hyoun Tae KIM ; Chang Uk CHO
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2000;26(6):666-671
OBJECTIVES: This study evaluated the availability of mandibular symphysis corticocancellous block grafts in patients treated for reconstruction of intraoral jaw defects. MATERIALS AND METHODS: 8 patients with mandibular and maxillary bony defects were treated with corticocancellous block of symphysis. The types of defects included 4 pathologic jaw defects and 4 vertical and/or horizontal alveolar deficiencies. The age ranged from 13 to 45 years. Additional treatments such as plate fixation, alloplastic bony substitutes, and/or barrier membrane application were perfomred. They were evaluated for complications and healing of defects. Follow-up period ranged from 6 to 15 months. RESULTS: 2 patients experienced complications such as wound dehiscence and mild resorption of exposed bone. None of the patients needed secondary operation. Paresthesia of lip, chin, and teeth were recovered completely by 6 months postoperatively. Reconstructed wound showed favorable healing and bony consolidation. CONCLUSION: Corticocancellous block of mandibular symphysis can be used for the reconstruction of a variety of intraoral local jaw defects selectively. Advantages were easy fixation of graft, possibility of restoration of original alveolar contour, and decreased donor site morbidity.
Chin
;
Follow-Up Studies
;
Humans
;
Jaw*
;
Lip
;
Membranes
;
Paresthesia
;
Tissue Donors
;
Tooth
;
Transplants
;
Wounds and Injuries
3.Osteochondroma of TMJ: A Case Report
Chang Uk CHO ; Young Kyun KIM ; Hyoun Tae KIM
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons 2000;22(3):360-363
Dental Clinics
;
Diagnosis
;
Female
;
Hearing
;
Humans
;
Mastication
;
Middle Aged
;
Osteochondroma
;
Skeleton
;
Temporomandibular Joint
;
Trismus
4.Influence of implant diameter and length changes on initial stability.
Jae Myoung CHO ; Uk CHO ; Mi Jung YUN ; Chang Mo JEONG ; Young Chan JEON
The Journal of Korean Academy of Prosthodontics 2009;47(3):335-341
STATEMENT OF PROBLEM: Adequate bone quality and quantity were important to achieve initial stability and to prevent early failures. However there were few published data available regarding the actual effect of dimensional change in implant geometry on initial stability. PURPOSE: The purpose of the current study was to investigate the influence of diameter and length changes on initial stability of implants. MATERIAL AND METHODS: Four types of dummy bone (D1, D2, D3 and D4) consisted of cortical and cancellous layers with different thickness were simulated. Implants which had similar surface area to each other (3.5 x 13.0-mm, 4.0 x 11.5-mm, 4.5 x 10.0-mm, 5.0 x 8.5-mm) were inserted in dummy bones. Implant stability as a function of peak insertion torque and resonance frequency values were recorded for each implant. RESULTS: 1. Bone quality was a major influential factor to achieve initial stability (P < .05). 2. In D1, D2 and D3 dummy bones, implant stability quotient values were not significantly different to each other (P > .05), however insertion torques were increased with wider and shorter implants (P < .05). 3. In D4 dummy bone, implant stability quotient values and insertion torques were decreased with wider and shorter implants (P <. 05). CONCLUSION: From a point of view of initial stability, it is suggested that use of wide and short implant may be helpful in avoiding bone augmentation procedures in area of adequate bone quality.
Torque
5.Comparison of Intracorporeal Reconstruction after Laparoscopic Distal Gastrectomy with Extracorporeal Reconstruction in the View of Learning Curve.
Chang Wook AHN ; Hoon HUR ; Sang Uk HAN ; Yong Kwan CHO
Journal of Gastric Cancer 2013;13(1):34-43
PURPOSE: The intracorporeal reconstruction after laparoscopic gastrectomy can minimize postoperative pain, and give better cosmetic effect, while it may have technical difficulties and require the learning curve. This study aimed to analyze the surgical outcome of intracorporeal reconstruction according to the surgeon's experience comparing with extracorporeal procedure. MATERIALS AND METHODS: From January 2009 to September 2011, intracorporeal reconstruction in laparoscopic surgery for gastric cancer was performed for 71 patients (Intra group). During same period, 231 patients underwent laparoscopy-assisted gastrectomy (Extra group). These patients were classified into initial (1st to 20th case of intra group), intermediate (21th to 46th case), and experienced (after 47th case) phases. RESULTS: Intracorporeal procedures included 35 cases of Billroth-I, 30 Billroth-II and 6 Roux en Y reconstructions. In the initial phase, operation time (P=0.022) were significantly longer for the patients of intra group than them of extra group. Although the difference was not significant, the length of hospital stay was longer and complication rate was higher in the intra group. In intermediate and experienced phases, there was no difference between two groups in operation time and hospital stay. In these phases, complication rate was lower in the intra group than the extra group (3.9% versus 9.7%). The pain scale was significantly lower post operation day 5 in the intra group. CONCLUSIONS: Intracorporeal reconstruction after laparoscopic distal gastrectomy was feasible and safe, and the technique was stabilized after 20th case if the surgeon has sufficient experiences when we compared it with extracorporeal reconstruction.
Cosmetics
;
Gastrectomy
;
Gastroenterostomy
;
Humans
;
Laparoscopy
;
Learning
;
Learning Curve
;
Length of Stay
;
Pain, Postoperative
;
Stomach Neoplasms
6.Early Prognostic factors and New Approach to Organophosphate Poisoning.
Yeong Rok HA ; Jin Ho OH ; Uk Jin KIM ; Jung Pil SEO ; Sung Hoon CHO ; Wen Joen CHANG ; Ho Shik SHIM
Journal of the Korean Society of Emergency Medicine 1998;9(1):142-147
BACKGROUND: Definite criteria for determining severity of organophosphate poisoning have not been made. Discovery of the third neuromuscular syndrome, the intermediate syndrome, have made it more complicating then ever. Objectives of this study is to determine early prognostic factors of outcome and development of a new treatment algorithm. METHOD: 74 patients admitted to Severance hospital with acute organophosphate poisoning during 5 years were included. We made a protocol concerning the initial consciousness level, QTc interval, PVC, serum cholinesterase, the intermediate syndrome, total hospital, ICU day, length of ventilator support, disposition and have done a study retrospectively. Multiple regression and Chi-square was used as statistical analysis. Significant statistical P-value was 0.05. RESULTS: The total hospital days were prolonged as serum cholinesterase levels were lower, the age was older and mental status graver.(p<.05) The length of ventilatory support was prolonged when patient's serum cholinesterase level was very low, they were unconscious and serum cholinesterase level not recovered to 500 IU/ml within initial 3 days. The intermediate syndrome was significantly related to the prolonged cholinesterase inhibition. CONCLUSION: As an early prognostic factor for the length of ventilatory support in organophosphate poisoning, 1) level of concsiousness and 2) serum cholinesterase level at admission, 3) recovery to more than 500 IU/ml within initial 3 days are useful. Especially when the serum cholinesterase level is not recovered to more than 500 IU/ml within initial 3 days, it is essential to observe closely for the possibility of an intermediate syndrome.
Cholinesterases
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Consciousness
;
Humans
;
Organophosphate Poisoning*
;
Retrospective Studies
;
Ventilators, Mechanical
7.Effects of Diazepam on Restraint Stress-induced Fos Expression in the Rat Brain.
Seong Il CHO ; Sung Pil LEE ; Chang Uk LEE ; Woo Sun KIM ; In Ho PAIK
Journal of Korean Neuropsychiatric Association 1997;36(5):927-934
This study was conducted to Identify the effects of diazepam on stress-induced c-fos expression In rat brain. The rats were divided into 4 groups according to injection agents [0.9% isotonic saline 1ml, diazepam(5 mg/kg)] and restraint stress, respectively. Saline or diazepam was injected into the peritoneum of rats 10 minutes before the restraint groups were restrained in a wire chamber. Fos-immunoreactive neurons were calculated in the hippocampal area CA2, dentate gyrus, amygdalohippocampal area, paraventricular nucleus, ventral lateral geniculate nucleus, supramammillary nucleus, temporal cortex area 3, occipital cortex area 2, piriform cortex, and cingulate cortex area 3. The results were as follows: 1) In the hippocampal formation including hippocampal area CA2 and dentate gyrus, Fos expression increased significantly in the saline-injected restraint animals than in any other groups. A two-way factorial ANOVA retreated a significant erects of stress and diazepam, and a significant stress by diazepam interaction. 2) In amygdalohippocampal area, Fos expression increased significantly in the saline-injected restraint animals than in diazepam-injected animals. A two-way factorial ANOVA revealed a significant effects of stress and diazepam, but no significant Interaction of stress and diazepam. 3) In paraventricular nucleus, Fos expression increased significantly in the saline-injected restraint animals than in saline-Injected animals and diazepam-injected animals. A two-way factorial ANOVA revealed a significant effects of stress, no significant effects of diazepam, and no significant Interaction of stress and diazepam. 4) In ventral lateral geniculate nucleus, Fos expression Increased significantly in the saline-injected restraint animals than in diazepam-Infected animals and diazepam-injected restraint animals. A two-way factorial ANOVA revealed a significant effects of diazepam, no significant effects of stress, and no significant interaction of stress and diazepam. 5) In supramammillary nucleus, temporal cortex area 3, occipital cortex area 2, piriform cortex, and cingulate cortex area 3, there was no significant difference of Fos expression in each group. A two-way factorial ANOVA revealed no significant effects of stress and diazepam, and no significant interaction of stress and diazepam. These results suggest that the hippocampal formation is involved in the response to the stress and the tension reduction effect of diazepam.
Animals
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Brain*
;
Dentate Gyrus
;
Diazepam*
;
Gyrus Cinguli
;
Hippocampus
;
Neurons
;
Paraventricular Hypothalamic Nucleus
;
Peritoneum
;
Rats*
8.The Effects of Fentanyl and Isoflurane on the Cerebrovascular CO2 Reactivity.
Sung Chang WOO ; Jai Hyun HWANG ; Jong Ho CHOI ; Joung Uk KIM ; Sung Kang CHO ; Sung Min HAN
Korean Journal of Anesthesiology 1995;29(3):373-378
The changes of arterial carbon dioxide partial pressure considerably influence cerebral blood flow and different anesthetic agents have different effects on cerebrovascular physiology. However the importance of these differences in neuroanesthetic practice are unclear. Transcranial Doppler ultrasonography allows the noninvasive direct measurements of cerebral blood flow velocity and direction in the basal brain arteries. The authors performed transcranial Doppler ultrasonography to measure the blood flow velocity of middle cerebral artery in 12 patients who were anesthetized with 10 mcg/kg of fentanyl and 66 % nitrous oxide in oxygen(fentanyl group) and 12 patients with 1.0 vo1% isoflurane and 66 % nitrous oxide in oxygen(isoflurane group) during normocapnia(P(ET)CO(2)=38 mmHg) and hypocapnia(P(ET)CO(2)=28 mmHg)state. The carbon dioxide reactivity was expressed as the changes in mean blood flow velocity per unit changes in endtidal carbon dioxide partial pressure(P(ET)CO(2)). Mean blood flow velocity of middle cerebral artery decreased from 46.6+/-8.9 cm/s to 30.0+/-5.3 cm/s in the fentanyl group and 42.7+/-5.6 cm/s to 32.5+/-4.6 cm/s in the isoflurane group as the P(ET)CO(2) decreased from 38 mmHg to 28 mmHg. There was a significant difference between the CO2 reactivity of fentanyl group(1.7+/-0.7 cm/s/mmHg) and isoflurane group(1,0+/-0,2 cm/s/mmHg) (p<0.05). It is concluded that hyperventilation is more likely to affect cerebral blood flow during fentanyl-nitrous oxide anesthesia than during isoflurane-nitrous oxide anesthesia.
Anesthesia
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Anesthetics
;
Arteries
;
Blood Flow Velocity
;
Brain
;
Carbon Dioxide
;
Fentanyl*
;
Humans
;
Hyperventilation
;
Isoflurane*
;
Middle Cerebral Artery
;
Nitrous Oxide
;
Partial Pressure
;
Physiology
;
Ultrasonography, Doppler, Transcranial
9.Comparison of Surgical Outcomes between Robotic and Laparoscopic Gastrectomy for Gastric Cancer: The Learning Curve of Robotic Surgery.
Byung Hee KANG ; Yi XUAN ; Hoon HUR ; Chang Wook AHN ; Yong Kwan CHO ; Sang Uk HAN
Journal of Gastric Cancer 2012;12(3):156-163
PURPOSE: Laparoscopic gastrectomy is a widely accepted surgical technique. Recently, robotic gastrectomy has been developed, as an alternative minimally invasive surgical technique. This study aimed to evaluate the question of whether robotic gastrectomy is feasible and safe for the treatment of gastric cancer, due to its learning curve. MATERIALS AND METHODS: We retrospectively reviewed the prospectively collected data of 100 consecutive robotic gastrectomy patients, from November 2008 to March 2011, and compared them to 282 conventional laparoscopy patients during the same period. The robotic gastrectomy patients were divided into 20 initial cases; and all subsequent cases; and we compared the clinicopathological features, operating times, and surgical outcomes between the three groups. RESULTS: The initial 20 robotic gastrectomy cases were defined as the initial group, due to the learning curve. The initial group had a longer average operating time (242.25+/-74.54 minutes vs. 192.56+/-39.56 minutes, P>0.001), and hospital stay (14.40+/-24.93 days vs. 8.66+/-5.39 days, P=0.001) than the experienced group. The length of hospital stay was no different between the experienced group, and the laproscopic gastrectomy group (8.66+/-5.39 days vs. 8.11+/-4.10 days, P=0.001). The average blood loss was significantly less for the robotic gastrectomy groups, than for the laparoscopic gastrectomy group (93.25+/-84.59 ml vs. 173.45+/-145.19 ml, P<0.001), but the complication rates were no different. CONCLUSIONS: Our study shows that robotic gastrectomy is a safe and feasible procedure, especially after the 20 initial cases, and provides a satisfactory postoperative outcome.
Gastrectomy
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Humans
;
Laparoscopy
;
Learning
;
Learning Curve
;
Length of Stay
;
Prospective Studies
;
Retrospective Studies
;
Stomach Neoplasms
10.Evaluation of clinical status of removable partial dentures.
Dong Seok YANG ; Uk CHO ; Chang Mo JEONG ; Young Chan JEON ; Mi Jung YUN
The Journal of Korean Academy of Prosthodontics 2009;47(3):320-327
STATEMENT OF PROBLEM: Although many efforts have been continually made to estimate long term prognosis of removable partial dentures, the complication of removable partial dentures was still found because of inaccurate fabrication procedure and improper maintenance care. PURPOSE: The purpose of this study was to evaluate the clinical status of removable partial dentures. MATERIAL AND METHODS: A total of 112 individuals with 153 removable partial dentures (35 - 87 years, 64 women and 48 men) were examined by intra-oral examination, diagnostic cast and radiographic examination. Results and CONCLUSION: The results of this study were as follows: 1. Length of service of removable partial dentures was 5.3 +/- 4.3 years (mean), 4.0 years (median). 2. A total of 45 removable partial dentures were considered failures. The loss of 18 abutments of 369 was founded. 3. Type of arch, Kennedy classification and type of opposite dentition were found to have no influence on longevity and success rate of removable partial dentures (P > .05). 4. Most common major connector was the palatal plate in maxilla and the number of lingual bar and linguoplate designed in mandible were similar. 5. The circumferential type retainer was the most commonly used retainer. 6. Sixty-three percent of the class I and II removable partial dentures incorporated indirect retention into the design. 7. Approximately 81% of the removable partial dentures had at least one defect. Excessive wear of posterior teeth (27.9%), lack of integrity (23.2%), lack of stability (22.6%) were frequent defects of removable partial dentures.
Dentition
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Denture, Partial, Removable
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Female
;
Humans
;
Longevity
;
Mandible
;
Maxilla
;
Prognosis
;
Retention (Psychology)
;
Tooth