1.A Study on the Quantitation of the Peripheral Blood T Lymphocytes and T Sebsets in Patients with Psoriasis by Moncolonal Antibodies.
Kyu Joong AHN ; Jai Il YOUN ; Yoo Shin LEE
Korean Journal of Dermatology 1985;23(5):607-619
The study was undertaken to clarify any quantitative abnormalities in peripheral blood T lymphocytes and T subsets, mediating cell meliated immunity, and the presence of any relation between the degree of quantitative abnormalities and extent of skin lesions and activity of disease in patients with psoriasis by monoclonal antibodies. The results were as follows. 1. Mean percentages of total and suppressor T lymphocytes in 39 patients with psoriasis are significantly decreased as compared with those in 32 controls. Mean ratio of percentage of helper T lymphocytes to that of suppressor Tlymphocytes in 39 patients with psoriasis are significantly increased as compared with that in 32 controls. 2, As classified into three groups according to extent of skin lesions (E: less than 5% E,: 5-30%, and E,: more than 30%), mean pereentages of total T lymphocytes in E, and E, psoriasis group and those of suppressor T lymphocytes in all three psoriasi., groups are significantly decreased as compared with those in controIs. Mean percentages of helper T lymphor,ytes in L psoriasis group and mean ratios of percentage of helper T lymphocytes to that of suppressor T lymphocytes in E, and E, psoriasis groups are significantly increased as compared with those in controls. 3. Cis classified into three groups according to activity of disease (A,: stationary, A,: active, peripherally spreading and A,: active, small papules spreading), mean percentage of total T lymphocytes in peripheral blood lymphocytes in A, psoriasis group and those of suppressor T lymphocytes in all three psoriasis group are significantly decreased as compared with those in controls. Mean percentages of helper T lymphocytes and mean ratios of percentage if helper T lymphocytes to that of suppressor T lymphocytes in A, and A, psorixsis groups are significantly increased as compared with those in controls. These results clarified that there are quantitative abnormalities in peripheral blood I' lymphocytes and T subsets in patients with psoriasis and the degrees of abnorrnalities are related to extent of skin lesions and activity of disease. The aanorrnalities in peri.pheral blood T lymphocytes and T subsets in patients with psoriasis seem to be attributed to primary defect of suppressor T lymphoytes.
Antibodies*
;
Antibodies, Monoclonal
;
Humans
;
Lymphocytes
;
Negotiating
;
Psoriasis*
;
Skin
;
T-Lymphocytes*
2.Quantitation of the Peripheral Blood T Cell and T Subsets Patients.
Ai Young LEE ; Kyu Joong AHN ; Jai Il YOUN ; Yoo Shin LEE ; Myoung Hee PARK
Korean Journal of Dermatology 1985;23(3):283-289
The study was performed to measure and compare the peripheral blood T cell and T subsets in normal controls and psoriatic patients. Thirty-two normal controls and fift:en psoriatic patients were subjected to the study and the percentages and the rati vs of peripheral blood T cell and T subsets were measured. The results were as follows: 1. Mean percentages of peripheral blood lymphocytes reactive with OKT3 monoclonal antibody in psoriatic patients were 72. 8+-8. 2%, They decreased significantl) as compared with these in control group(76, 6- i-4. 7%). Mc an percentages of peripheral blood lymphocytes reactive with OKT4 monoclonal antibody in psoriatic patients were 47. 3+6, 7p;. They increased as compared with these in control group(46. 5+-3. 9p;), but the increase was insignificant. 3. Mean percentages of peripheral blood lymphocytes reactive with OKT8 monoclonal antibody in psoriatic patients were 27. 2+5. 5g, They decreased significantly as compared with these in control group(30, 6- l-4. 3%) 4. Mean ratios of lymphocytes reactive with OKT4 monoclonal antibody to these reactive with OKT8 monoclonal antibody in psoriatic patients were 1.8+- 0. 48 They increased significantly as compared with these in control group(1. 6+ 0.34).
Allergy and Immunology
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Humans
;
Lymphocytes
;
Muromonab-CD3
;
Psoriasis
3.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
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Carpal Bones
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Chondroma
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Clinical Study
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Curettage
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Early Diagnosis
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Enchondromatosis
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Female
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Ganglion Cysts
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Hand
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Hemangioma
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Humans
;
Male
;
Pathology
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Recurrence
;
Transplants
4.Association between Helicobacter pylori and Colorectal Neoplasm.
Joong Wook AHN ; Jai Hyun RHYOU ; Kwang Ho KIM ; Eung Bum PARK
Journal of the Korean Society of Coloproctology 2001;17(3):125-129
PURPOSE: Helicobacter pylori infection has been reported as a major factor of chronic gastritis, peptic ulcer, gastric lymphoma, and stomach cancer. In some uncontrolled studies, a high seroprevalence of H. pylori infection unexpectedly has been found in patients with colorectal cancer. The purpose of this study was to investigate the prevalence of H. pylori infection in patients with colorectal neoplasm. METHODS: 93 colonic tissue samples were collected during the colonoscopic biopsy. The specimens included polyp, cancer, and normal colonic mucosa. The CLO testTM kit (Delta West Ltd., Bentley, Western Australia) was used for detection of H. pylori. The SAS program (USA) was used for the Fisher's exact test. RESULTS: H. pylori infection was detected 11 (11.8%) of total 93 specimens, 7 (25.7%) of 27 in cancers and 3 (6.9%) of 43 in polyps. Significantly higher H. pylori infection was detected in the colorectal cancers than non-cancer lesions (p=0.012) and polyps (p=0.038). CONCLUSIONS: These results suggest a statistically significant association between H. pylori and colorectal neoplasm. The mechanism underlying this association needs to be investigated.
Biopsy
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Colon
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Colorectal Neoplasms*
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Gastritis
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Helicobacter pylori*
;
Helicobacter*
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Humans
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Lymphoma
;
Mucous Membrane
;
Peptic Ulcer
;
Polyps
;
Prevalence
;
Seroepidemiologic Studies
;
Stomach Neoplasms
5.Electrodiagnostic Evaluation of Diabetic Central Neuropathy: Electrophysiologic diagnosis of diabetic central neuropathy by using MEP and SEP.
Sam Gyu LEE ; Jai Joong AHN ; Jun Young LEE ; Kwang Jin SEON ; Min Young CHUNG
Journal of the Korean Academy of Rehabilitation Medicine 1997;21(1):95-104
We studied diabetic central neuropathy(DCN) that is not well-known neurologic disorder. for confirming its existence and then presenting objective diagnostic criteria and methods. Thirtysix diabetics(NIDDM: 30, IDDM: 6), men age 53.1 years, 21 males and 15 females, were com pared with 36 controls, mean age 51.5 years, 18 males and 18 females, electrophysiologically. First, we diagnosed peripheral polyneuropathy(PN) in diabetics by means of Diabetic Neuropathy Staging(DNS) developed at the University of Michigan and classified diabetics into two group; group I indicates diabetics with PN. group II diabetics without PN. Second, we studied central(cortico-cervical and cortico-lumbar) motor conduction time(CMCT) by means of magnetic motor-evoked potential (MEP) and central somatosensory conduction time by means of somatosensory-evoked potentials(SEP) stimulating on median and posterior tibial nerves. There were no significant differences(P>0.05) statistically in cortico-cervical CMCT between diabetics and controls. There were significantly more prolonged(P<0.01) in cortico-lumbar CMCT between diabetics and controls. In median nerve-evoked 3-channel SEP, N13-N20 (cortico-cervical) interpeak latency was significantly more prolonged(P<0.01) in diabetics than controls. In tibial nerve-evoked 2-channel SEP, P38-N22(cortico-lumbar) interpeak latency was significantly more prolonged(P<0.01) in diabetics than controls. In 30 patients(83.3%) of 36 diabetics, the study revealed central conduction delay in view of that above 2 or more abnormalities representing central conduction delay, that is, central neuropathy. In 10 patients(33.3%, M: 7, F:3) of diabetics with central neuropathy(30 patients), even though they had no PN, central conduction delay was revealed. Conclusively, in view of representing central conduction delay in 83.3% of patients, we believer that more active evaluations are needed in diabetics representing nonspecific central neurologic symptoms, for example, psychomotor slowing or cognitive dysfunctions, and MEP and SEP are useful in diagnosing DCN.
Diabetes Mellitus, Type 1
;
Diabetic Neuropathies
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Diagnosis*
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Female
;
Humans
;
Male
;
Michigan
;
Nervous System Diseases
;
Neurologic Manifestations
;
Tibial Nerve
6.Implementation of a resident night float system in a surgery department in Korea for 6 months: electronic medical record-based big data analysis and medical staff survey
Hyeong Won YU ; June Young CHOI ; Young Suk PARK ; Hyung Sub PARK ; YoungRok CHOI ; Sang Hoon AHN ; Eunyoung KANG ; Heung Kwon OH ; Eun Kyu KIM ; Jai Young CHO ; Duck Woo KIM ; Do Joong PARK ; Yoo Seok YOON ; Sung Bum KANG ; Hyung Ho KIM ; Ho Seong HAN ; Taeseung LEE
Annals of Surgical Treatment and Research 2019;96(5):209-215
PURPOSE: To evaluate superiority of a night float (NF) system in comparison to a traditional night on-call (NO) system for surgical residents at a single institution in terms of efficacy, safety, and satisfaction. METHODS: A NF system was implemented from March to September 2017 and big data analysis from electronic medical records was performed for all patients admitted for surgery or contacted from the emergency room (ER). Parameters including vital signs, mortality, and morbidity rates, as well as promptness of response to ER calls, were compared against a comparable period (March to September 2016) during which a NO system was in effect. A survey was also performed for physicians and nurses who had experienced both systems. RESULTS: A total of 150,000 clinical data were analyzed. Under the NO and NF systems, a total of 3,900 and 3,726 patients were admitted for surgery. Mortality rates were similar but postoperative bleeding was significantly higher in the NO system (0.5% vs. 0.2%, P = 0.031). From the 1,462 and 1,354 patients under the NO and NF systems respectively, that required surgical consultation from the ER, the time to response was significantly shorter in the NF system (54.5 ± 70.7 minutes vs. 66.8 ± 83.8 minutes, P < 0.001). Both physicians (90.4%) and nurses (91.4%) agreed that the NF system was more beneficial. CONCLUSION: This is the first report of a NF system using big data analysis in Korea, and potential benefits of this new system were observed in both ward and ER patient management.
Electronic Health Records
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Emergency Service, Hospital
;
Hemorrhage
;
Humans
;
Internship and Residency
;
Korea
;
Medical Staff
;
Mortality
;
Statistics as Topic
;
Vital Signs
7.J-curve relationship between corrected QT interval and mortality in acute heart failure patients
Chan Soon PARK ; Hyun-Jai CHO ; Eue-Keun CHOI ; Sang Eun LEE ; Min-Seok KIM ; Jae-Joong KIM ; Jin-Oh CHOI ; Eun-Seok JEON ; Kyung-Kuk HWANG ; Shung Chull CHAE ; Sang Hong BAEK ; Seok-Min KANG ; Byungsu YOO ; Dong-Ju CHOI ; Youngkeun AHN ; Kye-Hoon KIM ; Myeong-Chan CHO ; Byung-Hee OH ; Hae-Young LEE
The Korean Journal of Internal Medicine 2020;35(6):1371-1384
Background/Aims:
This study investigated the prognostic power of corrected QT (QTc) interval in patients with acute heart failure (AHF) according to sex.
Methods:
We analyzed multicenter Korean Acute Heart Failure registry with patients with AHF admitted from 2011 to 2014. Among them, we analyzed 4,990 patients who were followed up to 5 years. Regarding QTc interval based on 12 lead electrocardiogram, patients were classified into quartiles according to sex.
Results:
During follow-up with median 43.7 months, 2,243 (44.9%) patients died. The relationship between corrected QT interval and all-cause mortality followed a J-curve relationship. In Kaplan-Meier analysis, both sex had lowest mortality in the second QTc quartile. There were significant prognostic differences between the second and the fourth quartiles in male (log-rank p = 0.002), but not in female (log-rank p = 0.338). After adjusting covariates, the third (hazard ratio [HR], 1.185; 95% confidence interval [CI], 1.001 to 1.404; p = 0.049) and the fourth (HR, 1.404; 95% CI, 1.091 to 1.535; p = 0.003) quartiles demonstrated increased risk of mortality compared to the second quartile in male. In female, however, there was no significant difference across quartiles. QTc interval was associated with 5-year all-cause mortality in J-shape with nadir of 440 to 450 ms in male and 470 to 480 ms in female.
Conclusions
QTc interval was an independent predictor of overall death in male, but its significance decreased in female. The relationship between QTc interval and all-cause mortality was J-shaped in both sex.
8.The Third Nationwide Korean Heart Failure III Registry (KorHF III):The Study Design Paper
Minjae YOON ; Eung Ju KIM ; Seong Woo HAN ; Seong-Mi PARK ; In-Cheol KIM ; Myeong-Chan CHO ; Hyo-Suk AHN ; Mi-Seung SHIN ; Seok Jae HWANG ; Jin-Ok JEONG ; Dong Heon YANG ; Jae-Joong KIM ; Jin Oh CHOI ; Hyun-Jai CHO ; Byung-Su YOO ; Seok-Min KANG ; Dong-Ju CHOI
International Journal of Heart Failure 2024;6(2):70-75
With advancements in both pharmacologic and non-pharmacologic treatments, significant changes have occurred in heart failure (HF) management. The previous Korean HF registries, namely the Korea Heart Failure Registry (KorHF-registry) and Korean Acute Heart Failure Registry (KorAHF-registry), no longer accurately reflect contemporary acute heart failure (AHF) patients. Our objective is to assess contemporary AHF patients through a nationwide registry encompassing various aspects, such as clinical characteristics, management approaches, hospital course, and long-term outcomes of individuals hospitalized for AHF in Korea. This prospective observational multicenter cohort study (KorHF III) is organized by the Korean Society of Heart Failure. We aim to prospectively enroll 7,000 or more patients hospitalized for AHF at 47 tertiary hospitals in Korea starting from March 2018. Eligible patients exhibit signs and symptoms of HF and demonstrate either lung congestion or objective evidence of structural or functional cardiac abnormalities in echocardiography, or isolated right-sided HF. Patients will be followed up for up to 5 years after enrollment in the registry to evaluate long-term clinical outcomes. KorHF III represents the nationwide AHF registry that will elucidate the clinical characteristics, management strategies, and outcomes of contemporary AHF patients in Korea.
9.The Third Nationwide Korean Heart Failure III Registry (KorHF III):The Study Design Paper
Minjae YOON ; Eung Ju KIM ; Seong Woo HAN ; Seong-Mi PARK ; In-Cheol KIM ; Myeong-Chan CHO ; Hyo-Suk AHN ; Mi-Seung SHIN ; Seok Jae HWANG ; Jin-Ok JEONG ; Dong Heon YANG ; Jae-Joong KIM ; Jin Oh CHOI ; Hyun-Jai CHO ; Byung-Su YOO ; Seok-Min KANG ; Dong-Ju CHOI
International Journal of Heart Failure 2024;6(2):70-75
With advancements in both pharmacologic and non-pharmacologic treatments, significant changes have occurred in heart failure (HF) management. The previous Korean HF registries, namely the Korea Heart Failure Registry (KorHF-registry) and Korean Acute Heart Failure Registry (KorAHF-registry), no longer accurately reflect contemporary acute heart failure (AHF) patients. Our objective is to assess contemporary AHF patients through a nationwide registry encompassing various aspects, such as clinical characteristics, management approaches, hospital course, and long-term outcomes of individuals hospitalized for AHF in Korea. This prospective observational multicenter cohort study (KorHF III) is organized by the Korean Society of Heart Failure. We aim to prospectively enroll 7,000 or more patients hospitalized for AHF at 47 tertiary hospitals in Korea starting from March 2018. Eligible patients exhibit signs and symptoms of HF and demonstrate either lung congestion or objective evidence of structural or functional cardiac abnormalities in echocardiography, or isolated right-sided HF. Patients will be followed up for up to 5 years after enrollment in the registry to evaluate long-term clinical outcomes. KorHF III represents the nationwide AHF registry that will elucidate the clinical characteristics, management strategies, and outcomes of contemporary AHF patients in Korea.
10.The Third Nationwide Korean Heart Failure III Registry (KorHF III):The Study Design Paper
Minjae YOON ; Eung Ju KIM ; Seong Woo HAN ; Seong-Mi PARK ; In-Cheol KIM ; Myeong-Chan CHO ; Hyo-Suk AHN ; Mi-Seung SHIN ; Seok Jae HWANG ; Jin-Ok JEONG ; Dong Heon YANG ; Jae-Joong KIM ; Jin Oh CHOI ; Hyun-Jai CHO ; Byung-Su YOO ; Seok-Min KANG ; Dong-Ju CHOI
International Journal of Heart Failure 2024;6(2):70-75
With advancements in both pharmacologic and non-pharmacologic treatments, significant changes have occurred in heart failure (HF) management. The previous Korean HF registries, namely the Korea Heart Failure Registry (KorHF-registry) and Korean Acute Heart Failure Registry (KorAHF-registry), no longer accurately reflect contemporary acute heart failure (AHF) patients. Our objective is to assess contemporary AHF patients through a nationwide registry encompassing various aspects, such as clinical characteristics, management approaches, hospital course, and long-term outcomes of individuals hospitalized for AHF in Korea. This prospective observational multicenter cohort study (KorHF III) is organized by the Korean Society of Heart Failure. We aim to prospectively enroll 7,000 or more patients hospitalized for AHF at 47 tertiary hospitals in Korea starting from March 2018. Eligible patients exhibit signs and symptoms of HF and demonstrate either lung congestion or objective evidence of structural or functional cardiac abnormalities in echocardiography, or isolated right-sided HF. Patients will be followed up for up to 5 years after enrollment in the registry to evaluate long-term clinical outcomes. KorHF III represents the nationwide AHF registry that will elucidate the clinical characteristics, management strategies, and outcomes of contemporary AHF patients in Korea.