1.Insertion Length of Pulmonary Artery Catheter and its Migration During Extracorporeal Circulation.
Myung Won CHO ; Seong Eun PARK ; Han Su YUN
Korean Journal of Anesthesiology 1993;26(6):1271-1277
Proper positioning of pulmonary artery catheter and predicting distal migration of it during cardiopulmonary bypass is important for the prevention of perioperative complication of pulmonary artery rupture. The authors therefore examined the insertion length of pulmonary artery catheter via right internal jugular vein at which catheter tip was advanced to the most proximal position where pulmonary capillary wedge pressure could be obtained. And also the distal migration is measured by comparing the difference between prebypass and postbypass corrected length. Just before bypass, pulmonary artery catheter was arbitrarily receded 5cm for the prevention of spontaneous distal migration and wedging. The subjects were 47 patients who underwent open heart surgery (valve replacement, coronary artery bypass graft) during the period of November, 1992 through April, 1993. The results were as follows. 1) The insertion length of pulmonary artery catheter from skin to the right ventricle inlet, pulmonary artery inlet and pulmonary capillary wedge position were 26.5+/-3.0 cm, 36.8+/-4.9 cm and 46.1+/-5.7 cm respectively. 2) There were no significant statistical correlations between insertion lengths and patient constitutions such as body weight and height(r=0.144, r=0.032). 3) Locations of catheter tips were distributed to the 0.9+/-3.1 cm left to the spinous process, 1.9+/-1.6 cm inferior to the carina ; mostly LLQ of the lung field(51%). 4) During cardiopulmonary bypass, pulmonary artery catheter tips were migrated distally in 93.6% of the cases and the migration lengths were 2.7+/-2.0 cm. 5) There were no major perioperative complications caused by pulmonary artery catheterization. These results suggest that 5 cm withdrawal of pulmonary axtery catheter just before cardiopulmonary bypass can prevent the fatal complication of pulmonary artery rupture owing to its spontaneous distal migration.
Bays
;
Body Weight
;
Capillaries
;
Cardiopulmonary Bypass
;
Catheterization, Swan-Ganz
;
Catheters*
;
Constitution and Bylaws
;
Coronary Artery Bypass
;
Extracorporeal Circulation*
;
Heart Ventricles
;
Humans
;
Jugular Veins
;
Lung
;
Pulmonary Artery*
;
Pulmonary Wedge Pressure
;
Rupture
;
Skin
;
Thoracic Surgery
2.Factors affecting the settlement amount of medical malpractice claims.
Seong Hee YANG ; Hang Suk CHO ; Sun Hee LEE ; Myung Sei SHON
Journal of the Korean Academy of Family Medicine 1998;19(8):604-620
BACKGROUND: The purpose of this study was to investigate the characteristics of and to analyze the factors re-lated to the cost of the resolution of a medical dispute. METHODS: We have reviewed 2,346 cases reported to the Korean Medical Association(KMA)mutual-aid association from Nov. 1. 1981 to Oct. 31. 1994. RESULTS: The percentage rate of reported cases of were related field as follows .' obstetric gynecology(OBGYN) 31.9%, general practitice 28.1%, general surgery 13.3%, orthopedics 6.9% and internal medicine 6.4% 1,829 cases (80.0%) were settled out of court and without public intervention. 310 cases(13.2%) were settled by the police, the public procurators office or the court. The mean settlement amount per case was 9,340,000 won with annual growth rate 10.8%, and median settlement amount was 5,890,000 won. The mean settlement amount for OBGYN was 930,000 won, surgical group 8,900,000 won, medical group 7,710,000 won, and general practitice 7,490,000 won. The cases of medical dispute according to the types of medical care were : operation 21.1%, injection 18.0%, treat-ment and care 18.0%, delivery 13.0%, artificial abortion 10.3%, Cesarian section 7.2% and anesthesia 2.5%. The mean settlement amount according to the types of medical care were: delivery and Cesarian section 15,190,000 won, operation and anesthesia 9,500,000 won, others 6,610,000 won, and injection and medication 6,230,000 won. The mean settlement amount that was settled out of court without public intervention was 7,940,000 won. The mean settlement with public intervention in the court was 17,290,000 won. The cases of medical dispute according to the patients status were .' death 37.5%, complications 20.8%, disability 12.2% and others 28.9%. The mean settlement amout for death was 16,150,000 won, disability 9,430,000 won, others 4,850,000 won and complications 3,550,000 won. The mean settlement amount where doctors have asserted that the outcome was inevitable or have not agreed that it was their fault was higher than the cost of cases where they had admitted responsibility. The settlement amout where there was a misdiagnosis present had not shown to be higher than when the misdiagnosis was absent. The mean settlement amount for cases where multiple doctors were involved was higher than for cases of a single doctor. The mean settlement amount for disturbing the medical practice and suspension of are high. The mean settlement amount for complications was lower than others, and the mean settlement amount for disability and death presented were high. Concerning the types of care, the mean settlement amount for operation/anesthesia, delivery/ Cesarian sections were higher than for injection/medication. Concerning the type of settlement, the mean settlement amount in the police and public procurators office was higher than in out of court without public intervention. CONCLUSIONS: The mean settlement amount depended on the patient's status, the type of settlement, and the disturbance of medical practice regardless of the doctors misdiagnosis, fault, and standard care. Therefore, a reason-able method of resolution for medical dispute is needed.
Anesthesia
;
Diagnostic Errors
;
Dissent and Disputes
;
Humans
;
Internal Medicine
;
Malpractice*
;
Orthopedics
;
Police
3.The Influence of Taekwon
Sang Cheol SEONG ; Won Joong KIM ; Myung Chul LEE ; Chang Won CHO
The Journal of the Korean Orthopaedic Association 1989;24(6):1548-1552
The bone mineral densities of 60 middle school boys were measured with dual photon absorptiometry to define the influence of Taekwon-Do. They were divided into Taekwon-Do and control group, each comprising 30 boys. The bone mineral densities of the head, trunk, pelvis, both upper and lower extremities, and body total were measured. The results were as follows. 1. The BMD of head was 1.668 ± 0.153 in Taekwon-Do and 1.554 ± 0.153 0.167 in control. It was significantly increased in aekwon-Do(p <0.05). 2. The BMD of trunk was 0.378 ± 0.153 0.044 in Taekwon-Do and 0.353 ± 0.153 0.053 in control. There was no significant difference(p >0.05). 3. The BMD of pelvis was 1.648 ± 0.153 0.112 in Taekwon-Do and 1.444 ± 0.153 0.215 in control. It was significantly increased in Taekwon-Do(p <0.005). 4. The BMD of right and left legs were 1.597 ± 0.153 0.118 and 1.579 ± 0.153 0.125 in Taekwon-Do and 1.425 ± 0.153 0.115 and 1.421 ± 0.153 0.113 in control group respectively. They were significantly increased in Taekwon-Do(p <0.005). 5. The BMD of right and left arms were 1.184 ± 0.153 0.090 and 1.178 ± 0.153 0.115 in Taekwon-Do and 1.056 ± 0.153 0.095 and 1.066 ± 0.153 0.097 in control group respectively. They were significantly increased in Taekwon-Do(p.<0.005). 6. The total body BMD was 0.932 ± 0.153 0.068 in Taekwon-Do and 0.846 ± 0.065 in control. It is significantly increased in Taekwon-Do(p<0.005). In conclusion, Taekwon-Do increases the total bone mineral density and the mineral densities of the head, pelvis and extremities but not that of trunk. It is thought that continued practice of Taekwon-Do throughout adult life might prevent the senile osteoporosis
Absorptiometry, Photon
;
Adult
;
Arm
;
Bone Density
;
Extremities
;
Head
;
Humans
;
Leg
;
Lower Extremity
;
Miners
;
Osteoporosis
;
Pelvis
4.Exome Chip Analysis of 14,026 Koreans Reveals Known and Newly Discovered Genetic Loci Associated with Type 2 Diabetes Mellitus
Seong Beom CHO ; Jin Hwa JANG ; Myung Guen CHUNG ; Sang Cheol KIM
Diabetes & Metabolism Journal 2021;45(2):231-240
Most loci associated with type 2 diabetes mellitus (T2DM) discovered to date are within noncoding regions of unknown functional significance. By contrast, exonic regions have advantages for biological interpretation. We analyzed the association of exome array data from 14,026 Koreans to identify susceptible exonic loci for T2DM. We used genotype information of 50,543 variants using the Illumina exome array platform. In total, 7 loci were significant with a Bonferroni adjusted We found exonic loci having a susceptibility for T2DM. We found that such genetic information is advantageous for predicting T2DM in a subgroup of obese individuals.
5.Surgical Treatment of Malunited Proximal Femoral Transepiphyseal Fracture In a Girl
Myung Sang MOON ; In Young OK ; Doo Hoon SUN ; Seong Rae CHO
The Journal of the Korean Orthopaedic Association 1994;29(7):1655-1657
Authors experienced an unusual case of malunited trans-epiphyseal fracture of the proximal femur in a 2 year-old girl. She was treated at a private clinic by closed reduction and cast immobilization, which subsequently resulted in malunion and capital subluxation. Because of subsequent failure of remodelling of the subluxated malunited fracture for two years, corrective femoral varisation and internal rotation osteotomy was done to reduce the subluxated femoral head. Postoperatively congrous reduction was obtained and gradual remodelling of the malunited fracture took place during 5 and a half years follow-up period.
Child
;
Female
;
Femur
;
Follow-Up Studies
;
Fractures, Malunited
;
Head
;
Hip
;
Humans
;
Immobilization
;
Osteotomy
6.Popliteal Artery Injury Associated with Severe Knee Trauma
Myung Chul YOO ; Jea Whan AHN ; Bong Kun KIM ; Seong Geun JANG ; Il Hyung CHO
The Journal of the Korean Orthopaedic Association 1984;19(3):501-508
Fracture dislocation or dislocation of the knee can produce a popliteal artery injury that may be difficult to evaluate clinically. Diagnosis of disruption or thrombosis of the popliteal artery is frequently delayed until the opportunity to salvage the extremity is lost. 22 cases of popliteal artery injury were reviewed from July 1978 to December 1983, associated with severe knee trauma at the Orthopaedic department of Kyung Hee University Hospital, of whom average follow-up for about 52 months. The results obtained were as follows; 1. In all 22 cases, 14 cases (63. 6%) were amputated. The amputation rate was correlated with ischemic time after injury. 2. Resection of all injuried vessels with reconstitution of continuity by the use of an interposed saphenous vein graft is often warrented to avoid tension. 3. All 8 patients, which was managed conservatively, were amputated in all cases(100%). In cases of suspicious popliteal artery injury, early aggressive exploration and obvious microvascular reconstruction should be mandatory. 4. Subperiosteal fibulectomy-fasciotomy should be done routinely immediately after vascular injury. 5. Diagnosis of popliteal artery injury was based on the clinical findings but the capillary filling was not contributary. 6. The use of Doppler flowmeter and emergency arteriography was recognizedtobeanexcellent methods in determination of arterial injury.
Amputation
;
Angiography
;
Capillaries
;
Diagnosis
;
Dislocations
;
Emergencies
;
Extremities
;
Flowmeters
;
Follow-Up Studies
;
Humans
;
Knee
;
Popliteal Artery
;
Saphenous Vein
;
Thrombosis
;
Transplants
;
Vascular System Injuries
7.Exome Chip Analysis of 14,026 Koreans Reveals Known and Newly Discovered Genetic Loci Associated with Type 2 Diabetes Mellitus
Seong Beom CHO ; Jin Hwa JANG ; Myung Guen CHUNG ; Sang Cheol KIM
Diabetes & Metabolism Journal 2021;45(2):231-240
Most loci associated with type 2 diabetes mellitus (T2DM) discovered to date are within noncoding regions of unknown functional significance. By contrast, exonic regions have advantages for biological interpretation. We analyzed the association of exome array data from 14,026 Koreans to identify susceptible exonic loci for T2DM. We used genotype information of 50,543 variants using the Illumina exome array platform. In total, 7 loci were significant with a Bonferroni adjusted We found exonic loci having a susceptibility for T2DM. We found that such genetic information is advantageous for predicting T2DM in a subgroup of obese individuals.
8.Cognitive Dysfunction and Improvement after Antidepressant Treatment in Patients with Non-Psychotic Major Depressive Disorder in Mild to Moderate Severity: A Prospective Study.
Kang Uk LEE ; Seong Myung CHO ; Jong Ik PARK
Korean Journal of Psychopharmacology 2008;19(5):283-292
OBJECTIVE: This study was conducted to evaluate the impairment of cognitive functions, which include verbal and visual memory, visuospatial function, and executive function, and also to investigate if there is improvement of cognitive impairment after antidepressant treatment in patients with major depressive disorder (MDD). METHODS: Fifteen female patients with non-psychotic MDD in mild to moderate severity and 25 age-matched female normal control subjects participated in this study. Clinical severity of depression was measured by Beck Depression Inventory (BDI), Zung's Self-Rating Depression Scale (Zung), and Hamilton Rating Scale for Depression (HAMD). Cognitive functions were tested using Ray Complex Figure Test (RCFT) to evaluate visuospatial function and visual memory, Stroop test to evaluate conflict monitoring, Wisconsin Card Sorting Test (WCST) to evaluate executive function, and Seoul Verbal Learning Test (SVLT) to evaluate verbal memory. Both clinical depression scales and cognitive function tests were conducted at baseline and after 12 months of antidepressant treatment. RESULTS: At baseline, there were deficits in immediate and delayed recall of SVLT in patients with MDD compared to normal control subjects, while the impairment in visuospatial function, visual memory, and executive function was not clear. After antidepressant treatment, improvement of executive function, i.e. percent of error response and perseverative response of WCST in MDD patients was greater than that in normal control subjects. Improvement of executive function, however, did not show a significant correlation with the change of clinical severity of depression. CONCLUSION: The verbal memory was the most prominent domain of cognitive dysfunction in non-psychotic depression with mild to moderate severity. Of further note, differential improvement in executive function was observed in MDD patients after antidepressant treatment, although the improvement in executive function was not directly associated with the improvement of clinical depression.
Depression
;
Depressive Disorder, Major
;
Executive Function
;
Female
;
Humans
;
Memory
;
Prospective Studies
;
Stroop Test
;
Verbal Learning
;
Weights and Measures
;
Wisconsin
9.Detection of Bacillus anthracis using a nested PCR Method.
Yong Keel CHOI ; Seong Kun CHO ; Myung Hee KIM ; Seung Yun BAIK ; Gyeong Hyun PARK ; Young Gyu CHAI
Journal of the Korean Society for Microbiology 1998;33(6):583-588
Bacillus anthracis is a soil pathogen capable of causing anthrax in animals and humans. To establish a method for specifically detecting B. anthracis, we used nested polymerase chain reaction. Outer and inner sets of oligonucleotide primers were designed from the protective antigen (pag) gene and from the cya gene of the plasmid pXO1. Ainplification of 482 bp or 208 bp DNA fragment obtained from a nested PCR method provided the basis for rapid and reliable assay for the detection and identification of B. anthracis.
Animals
;
Anthrax
;
Bacillus anthracis*
;
Bacillus*
;
DNA
;
DNA Primers
;
Humans
;
Plasmids
;
Polymerase Chain Reaction*
;
Soil
10.The clinical assessment of aggressive periodontitis patients.
Chan Myung CHO ; Hyung Keun YOU ; Seong Nyum JEONG
Journal of Periodontal & Implant Science 2011;41(3):143-148
PURPOSE: Few epidemiologic studies have investigated aggressive periodontitis in Koreans, but such studies of disease prevalence and other clinical characteristics would be invaluable in providing proper treatment. The aim of this study was to assess the prevalence of aggressive periodontitis and to measure the extent of associated periodontal breakdown. METHODS: The study population consisted of 1,692 patients who visited the Department of Periodontology, Wonkwang Daejeon Dental Hospital from January to December, 2010. Clinical parameters (probing depth, gingival recession, periodontal attachment loss) were measured by a single examiner, and radiographic examination was performed at the baseline. RESULTS: Twenty-eight (1.65%) patients showed clinical features of aggressive periodontitis, of which 27 patients exhibited the generalized form, and 1 exhibited the localized form. There was no significant difference between the percentage of male and female patients. The probing pocket depth of the maxillary first molar was deeper than that of the other teeth and gingival recession was also the most serious at the maxillary first molar. The periodontal attachment loss was the highest at the maxillary first molar. The average number of missing teeth was 1.29 per subject. Loss of the second molar was prominent. CONCLUSIONS: Within the limitations of this study, the periodontal breakdown evaluated by attachment loss was found to be most severe at the first molars of aggressive periodontitis patients. However, further large scale multicenter studies are necessary to access more precise data, including prevalence.
Aggressive Periodontitis
;
Epidemiologic Studies
;
Female
;
Gingival Recession
;
Humans
;
Male
;
Molar
;
Periodontal Attachment Loss
;
Prevalence
;
Tooth