1.A case report of snake bite associated with subcapsular hematoma of the liver.
Sang Kyung CHOI ; Soon Tae PARK ; Woo Song HA ; Soon Chan HONG ; Ho Seong HAN ; Byoung Kwon HWANG ; Jong Yeon JANG ; Eui Chul JUNG ; Young Jun LEE
Journal of the Korean Surgical Society 1991;40(2):269-273
No abstract available.
Hematoma*
;
Liver*
;
Snake Bites*
;
Snakes*
2.Effect of Delayed Intensification on Survival of Childhood Acute Lymphoblastic Leukemia.
Jie Yeon LEE ; Sue YOUN ; Byoung Chul KWON ; Chuhl Joo LYU ; Hwang Min KIM
Journal of the Korean Pediatric Society 2003;46(12):1260-1265
PURPOSE: In 1970, the Berlin-Frankfurt-Munster(BFM) group introduced an intensification therapy after remission induction to reduce relapse of acute lymphoblastic leukemia(ALL) in childhood. Delayed intensification(DI) phase has been included for treatment of ALL in our hospital since the mid-1990s. The purpose of this study is to evaluate the outcome with vs. without DI phase and the outcome with two vs. one DI phase for intermediate risk patients. METHODS: One hundred and thirty nine children with ALL who were treated at the Department of Pediatrics of Wonju Christian Hospital and Yonsei University Medical Center between March, 1990 and July, 2002 were analysed retrospectively. RESULTS: Thirty-eight patients were treated with a DI phase, and 101 patients were treated without a DI phase. Among the DI patients, seven patients were treated with a double DI phase. Five-year overall survival(OS) in the low, intermediate, and high risk groups were 68%, 66% and 58%, respectively. 5-year OS in DDI, DI, and control were 95%, 86% and 40%, espectively. In the low risk group, 5-year event free survival(EFS) in DI, and control were 94% and 58%, respectively. CONCLUSIONS: Delayed intensification improved EFS on childhood ALL in all risk groups.
Academic Medical Centers
;
Child
;
Gangwon-do
;
Humans
;
Pediatrics
;
Precursor Cell Lymphoblastic Leukemia-Lymphoma*
;
Recurrence
;
Remission Induction
;
Retrospective Studies
3.Re-evaluation of the Orbital Dimensions in Modern Korean Adult Skulls.
Ki Seok KOH ; Young Il HWANG ; Hyun Jun SOHN ; Seung Ho HAN ; Doo Jin PAIK ; Hee Jin KIM ; Byoung Young CHOI ; Hye Yeon LEE ; Min Suk CHUNG
Korean Journal of Physical Anthropology 1995;8(2):195-204
This article describes the normal range of orbital linear dimensions (eq. orbital breadths, orbital height, orbital depth, interorbital breadths and biorbital breadth) and orbital indicies. One hundred and eighty-seven Korean skulls from grown-up individuals are studied with analysis for the purpose of evaluating anthropometric characteristics of Korean orbits. The results are compared to previously published data for modern Korean skulls. The width of the orbit is larger on the right side than the left and sexual difference was also shown. On the other hand, the heights of both orbits are much the same. Consequently, there is a slight tendency that chamaeconch is met with more frequently on the right side, whilst hypsiconch on the left side. The orbital depth is larger on the right side, however, depth index did not show any side difference. There are sexual differences on the biorbital breadth and upper facial breadth but not on the interorbital breadth on the basis of dacryon. These results represent the asymmetry of Korean orbit and that measurement on both sides must be necessary for anthropological comparison.
Adult*
;
Hand
;
Humans
;
Orbit*
;
Reference Values
;
Skull*
4.Relapse Rates of Ulcerative Colitis in Remission and Factors Related to Relapse.
Byoung Joon PARK ; Kwang Jae LEE ; Jae Chul HWANG ; Sung Jae SIN ; Jae Yeon CHUNG ; Sung Won CHO
The Korean Journal of Gastroenterology 2008;52(1):21-26
BACKGROUND/AIMS: Ulcerative colitis (UC) is a chronic inflammatory bowel disease with heterogeneous clinical features. Data on the disease course and prognosis of UC patients who have been regularly treated are lacking. We aimed to investigate relapse rates of UC in remission and factors related to relapse. METHODS: We retrospectively analyzed clinical courses of 84 patients (43 males, median age 43 years, ranged 20-73 years) diagnosed as UC at Ajou University Hospital between January 1997 and December 2005 based on clinical, endoscopic and pathologic findings, and who were regularly followed for at least one year after the remission. RESULTS: Study subjects consisted of 32 proctitis (38%), 21 left-sided colitis (25%), and 31 subtotal or total colitis (37%). Of 84 patients, relapse was observed in 52 patients (62%) during the follow-up period (ranged 1-9 years). The relapse rate was 24%, 41%, 51%, 65%, 71%, and 79% at 1 year, 2 years, 3 years, 4 years, 5 years and 6 years, respectively. Among sex, age, hemoglobin, ESR, and the extent of disease on admission, decrease of hemoglobin level was the only independent factor related to relapse (odds ratio=2.67, 95% CI (1.32-5.42), p<0.01). CONCLUSIONS: In Korea, relapse of UC in remission is not rare. Decrease of hemoglobin level is an independent risk factor related to its relapse, while the extent of disease is not.
Adult
;
Aged
;
Anti-Inflammatory Agents, Non-Steroidal/therapeutic use
;
Antimetabolites/therapeutic use
;
Azathioprine/therapeutic use
;
Chronic Disease
;
Colitis, Ulcerative/*diagnosis/*epidemiology/therapy
;
Data Interpretation, Statistical
;
Female
;
Follow-Up Studies
;
Hemoglobins/analysis
;
Humans
;
Male
;
Mesalamine/therapeutic use
;
Middle Aged
;
Odds Ratio
;
Recurrence
;
Retrospective Studies
;
Risk Factors
;
Time Factors
5.Erratum: Correction of Acknowledgements
Se Jeong KIM ; Hyo Jeong AHN ; Jung Yeon PARK ; Byoung Jae KIM ; Kyu Ri HWANG ; Taek Sang LEE ; Hye Won JEON ; Sun Min KIM
Obstetrics & Gynecology Science 2018;61(1):175-175
The Acknowledgements was published incorrectly. The authors apologize for any inconvenience that it may have caused.
6.Treatment of Tibial Fractures with the Ilizarov Method
Hae Ryong SONG ; Se Hyun CHO ; Kyung Hoi KOO ; Hyung Bin PARK ; Yeon Cheon JUNG ; Sun Cheol HWANG ; Jai Soo KIM ; Byoung Suck KIM ; Ye Soo PARK
The Journal of the Korean Orthopaedic Association 1994;29(2):655-664
Between 1987 and 1992, 86 tibial fractures were treated with the Ilizarov external fixator at Gyeong-Sang National University Hospital and Okpo Hospital. The mean follow-up period was 31.4 months. Sixty-six were open fractures and twenty were closed fractures with severe comminution. In 66 open fractures, there were 9 Gustilo type I, 10 type II, and 47 type III fractures. Of 66 open fractures, 22 had bone defects ranged from 2cm to 17cm and 16 had extensive loss of soft tissue. Twenty-two bone defects were treated with cancellous bone grafts in 8 cases, bifocal osteosynthesis with bone graft in 12 cases, and trifocal osteosynthesis with bone graft in 2 cases. Thirty-four extensive soft tissue defects were treated with split-thickness skin graft, musculocutaneous flap, soft tissue transportation with ring used in bifocal, trifocal osteosynthesis, and acute shortening of fracture site. Of 20 closed fractures, 14 were treated with cancellous bone graft for decreasing union time and 6 were treated with monofocal compression without bone graft. The mean time to union was 20.5 weeks in closed fractures, and 35.4 weeks in open fractures. Of 40 complications, 12 were knee and ankle joint contractures, 12 were soft tissue and bone infections of pin tract, 5 were refracture, 5 were angular deformities of 10 degree or more, 5 were delayed union, and 2 were nonunion. According to Tucker's classification, the results were graded as excellent in 31, good in 38, fair in 12, and poor in 5 cases. Primary or secondary bone graft is necessary for early bony union and anatomical reduction combined with bone graft could prevent the complications of delayed union and nonunion.
Ankle Joint
;
Classification
;
Congenital Abnormalities
;
Contracture
;
External Fixators
;
Follow-Up Studies
;
Fractures, Closed
;
Fractures, Open
;
Ilizarov Technique
;
Knee
;
Myocutaneous Flap
;
Skin
;
Tibia
;
Tibial Fractures
;
Transplants
;
Transportation
7.Effect of the cutting flute of the orthodontic miniscrew on insertion and removal torque
Cheol-Soo PARK ; Byoung-Gu LIM ; Eun-Kyu WON ; Jo-Yeon HWANG ; Byeol HWANG ; Jeong-Hui JI ; Woo-Yong JEON ; Min-Ho LEE ; Tae-Sung BAE
Korean Journal of Dental Materials 2021;48(1):53-60
The purpose of this study was to evaluate the structural characteristics of the thread length of orthodontic mini-screws and the effects of insertion and removal torques according to the formation of the cutting flute. Two types of mini-screws were made, with a thread length of 6.0 mm and a thread length of 3.3 mm. In order to examine the effect of flute formation, the experiment group was divided into a miniscrew test group with flute formation and an experiment group without flute formation. To evaluate the effect of flute formation, two flutes were formed at 180°on the circumference, and at the tip of the mini screw, up to 4 mm for thread length of 6.0 mm and 2.4 mm for thread length of 3.3 mm. A biomechanical test block formed of 2 mm cortical bone and 10 mm cancellous bone was used to eliminate the influence of the difference in cortical bone thickness and bone density according to the insertion site. 1 mm diameter guide hole was drilled on the test block and the mini-screw was placed vertically. Using a 0.1 N·cm precision digital torque gauge, the maximum torque value was recorded at this time by embedding it to the top of the screw under a static load of 1.2 kg and the value when it was removed in the opposite direction. The insertion torque values for the 6.0 mm and 3.3 mm length mini screws were (29.53±1.84) N·cm and (26.84±2.15) N·cm, and the removal torque values are (14.50±1.37) N·cm and (13.15±2.89) N·cm, respectively.There were no statistically significant differences (P>0.05). The flute of 6.0 mm mini-screws had no statistically significant difference in both insertion and removal torque values and increased to (30.13±1.97) N·cm and (18.65±1.10) N·cm (P>0.05). In experiments with 3.3 mm mini-screws, the insertion and removal torque values decreased to (20.99±3.94) N·cm and (11.32±2.03) N·cm, respectively, showing a statistically significant decrease only in the insertion torque values (P<0.05). The insertion and removal torque values of the mini-screw were not significantly increased even when the screw length was doubled, and the flute formation effect was different with the screw length.
8.Effect of the cutting flute of the orthodontic miniscrew on insertion and removal torque
Cheol-Soo PARK ; Byoung-Gu LIM ; Eun-Kyu WON ; Jo-Yeon HWANG ; Byeol HWANG ; Jeong-Hui JI ; Woo-Yong JEON ; Min-Ho LEE ; Tae-Sung BAE
Korean Journal of Dental Materials 2021;48(1):53-60
The purpose of this study was to evaluate the structural characteristics of the thread length of orthodontic mini-screws and the effects of insertion and removal torques according to the formation of the cutting flute. Two types of mini-screws were made, with a thread length of 6.0 mm and a thread length of 3.3 mm. In order to examine the effect of flute formation, the experiment group was divided into a miniscrew test group with flute formation and an experiment group without flute formation. To evaluate the effect of flute formation, two flutes were formed at 180°on the circumference, and at the tip of the mini screw, up to 4 mm for thread length of 6.0 mm and 2.4 mm for thread length of 3.3 mm. A biomechanical test block formed of 2 mm cortical bone and 10 mm cancellous bone was used to eliminate the influence of the difference in cortical bone thickness and bone density according to the insertion site. 1 mm diameter guide hole was drilled on the test block and the mini-screw was placed vertically. Using a 0.1 N·cm precision digital torque gauge, the maximum torque value was recorded at this time by embedding it to the top of the screw under a static load of 1.2 kg and the value when it was removed in the opposite direction. The insertion torque values for the 6.0 mm and 3.3 mm length mini screws were (29.53±1.84) N·cm and (26.84±2.15) N·cm, and the removal torque values are (14.50±1.37) N·cm and (13.15±2.89) N·cm, respectively.There were no statistically significant differences (P>0.05). The flute of 6.0 mm mini-screws had no statistically significant difference in both insertion and removal torque values and increased to (30.13±1.97) N·cm and (18.65±1.10) N·cm (P>0.05). In experiments with 3.3 mm mini-screws, the insertion and removal torque values decreased to (20.99±3.94) N·cm and (11.32±2.03) N·cm, respectively, showing a statistically significant decrease only in the insertion torque values (P<0.05). The insertion and removal torque values of the mini-screw were not significantly increased even when the screw length was doubled, and the flute formation effect was different with the screw length.
9.The Origin of Proinflammatory Cytokines in Patients with Idiopathic Dilated Cardiomyopathy.
Hyuk Jae CHANG ; Jaehoon CHUNG ; Byoung Joo CHOI ; Tae Young CHOI ; So Yeon CHOI ; Myeong Ho YOON ; Gyo Seung HWANG ; Joon Han SHIN ; Seung Jea TAHK ; Byung Il William CHOI
Journal of Korean Medical Science 2003;18(6):791-796
Proinflammatory cytokines and their receptors are increased in the peripheral blood of patients with heart failure. We measured cytokines and their receptors in systemic artery (SA), coronary sinus (CS) and infra-renal inferior vena cava (IVC), in order to investigate their origin and influential factors. Thirty patients with idiopathic dilated cardiomyopathy were performed echocardiography at admission, and right heart catheterization after stabilization. Blood was drawn from 3 sites for measurement of tumor necrosis factor-alpha (TNF-alpha), interleukin-6 (IL-6) and soluble tumor necrosis factor- receptor (sTNFR) I, II. TNF-alpha at CS (3.25+/-0.34 pg/mL) was higher than those of SA (1.81+/-0.39 pg/mL) and IVC (1.88+/-0.38 pg/mL, p<0.05). IL-6 at CS (18.3+/-3.8 pg/mL) was higher than that of SA (5.8+/-1.2 pg/mL, p<0.01). The levels of sTNFR I, II showed increasing tendency in sequence of SA, IVC and CS. TNF-alpha and sTNFR I, II from all sites were proportional to worsening of functional classes at admission (p<0.05). E/Ea by Doppler study at admission, which reflects left ventricular end-diastolic pressure (LVEDP) was positively correlated with TNF-alpha from SA (R=0.71, p<0.01), CS (R=0.52, p<0.05) and IVC (R=0.46, p<0.05). Thus, elevated LVEDP during decompensation might cause cytokine release from myocardium in patients with idiopathic dilated cardiomyopathy.
Adult
;
Aged
;
Cardiomyopathy, Congestive/*blood/*immunology
;
Female
;
Heart/anatomy & histology
;
Hemodynamic Processes
;
Human
;
Interleukin-6/*blood
;
Male
;
Middle Aged
;
Receptors, Tumor Necrosis Factor/*blood
;
Statistics
;
Tumor Necrosis Factor/*metabolism
10.Long Journey of Sclerosant From the Esophagus to the Right Atrium.
Jin Sun PARK ; Jin Ju PARK ; Seung Kwan LIM ; Byoung Joo CHOI ; So Yeon CHOI ; Myeong Ho YOON ; Gyo Seung HWANG ; Seung Jea TAHK ; Joon Han SHIN
Korean Circulation Journal 2010;40(9):468-470
A 34-year-old man, who had been treated with an endoscopic injection of a mixture of n-butyl-2-cyanoacrylate (Histoacryl) and Lipiodol for control of variceal bleeding 6 months previously, presented with an intracardiac mass in the right atrium (RA). Two-dimensional echocardiography revealed an intracardiac mass in the RA that appeared to extend from the inferior vena cava. The origin of the sclerosant was traced by computed tomography (CT). This is a very rare case in which the sclerosant migration route was demonstrated by CT scan. The findings of this case suggest that the systemic migration of sclerosant into an intracardiac chamber should be considered in patients with an intracardiac mass, especially with a history of previous sclerotherapy for variceal bleeding.
Adult
;
Echocardiography
;
Embolism
;
Enbucrilate
;
Esophageal and Gastric Varices
;
Esophagus
;
Ethiodized Oil
;
Heart Atria
;
Hemorrhage
;
Humans
;
Sclerotherapy
;
Vena Cava, Inferior