1.Localized Resectable Genitourinary Sarcoma in Adult Korean Patients: Experiences at a Single Center.
Sung Yong CHO ; Kyung Chul MOON ; Min Su CHEONG ; Cheol KWAK ; Hyeon Hoe KIM ; Ja Hyeon KU
Yonsei Medical Journal 2011;52(5):761-767
PURPOSE: To evaluate the clinicopathological characteristics and prognosis of localized resectable genitourinary sarcomas in adults. MATERIALS AND METHODS: Between September, 1996 and November, 2008, 18 consecutive cases of adults (12 men and 6 women; median age 48.8 years) who were treated for primary genitourinary sarcomas were identified. The following variables were analyzed: patient age, gender, body mass index, American Society of Anesthesiologists (ASA) score, primary organ, tumor histology, size, necrosis, Federation Nationale des Centres de Lutte Contre le Cancer (FNCLCC) grade, and surgical margin positivity. Recurrence-free survival and disease-specific survival were the study end-points. RESULTS: The most common presenting symptom was a palpable mass (six cases, 33.3%), the most common site was the kidney (six cases, 33.3%), and the most common histological subtype was leiomyosarcoma (eight patients, 44.4%). Complete resection with negative surgical margins was achieved in 13 patients (72.2%). The median follow-up period was 49.9 months (range 6.4 to 147.6). The recurrence-free survival rates at 1, 3, and 5 years were 81.6%, 66.5%, and 66.5%, respectively. Recurrence-free survival only associated significantly with ASA score (p=0.018). The disease-specific survival rate at 1, 3, and 5 years was 88.9%, 76.2%, and 67.7%, respectively. Disease-specific survival was associated significantly only with FNCLCC grade (p=0.042). CONCLUSION: Although genitourinary sarcomas in adults are a rare group of tumors with a poor prognosis, some patients may have a favorable prognosis. Our findings suggest that FNCLCC grade is the most important prognostic factor for these patients.
Adult
;
Aged
;
Female
;
Humans
;
Immunohistochemistry
;
Kaplan-Meier Estimate
;
Male
;
Middle Aged
;
Neoplasm Grading
;
Prognosis
;
Republic of Korea
;
Sarcoma/metabolism/pathology/*surgery
;
Urogenital Neoplasms/metabolism/pathology/*surgery
;
Young Adult
2.Impact of Prostate Volume on Oncological and Functional Outcomes After Radical Prostatectomy: Robot-Assisted Laparoscopic Versus Open Retropubic.
Min Soo CHOO ; Woo Suk CHOI ; Sung Yong CHO ; Ja Hyeon KU ; Hyeon Hoe KIM ; Cheol KWAK
Korean Journal of Urology 2013;54(1):15-21
PURPOSE: We compared the impact of prostate volume on oncological and functional outcomes 2 years after robot-assisted laparoscopic prostatectomy (RALP) and open radical retropubic prostatectomy (ORP). MATERIALS AND METHODS: Between 2003 and 2010, 253 consecutive patients who had undergone prostatectomy by a single surgeon were serially followed over 2 years postoperatively. RALP was performed on 77 patients and ORP on 176. The patients were divided into two subgroups according to prostate volume as measured by transrectal ultrasound: less than 40 g and 40 g or larger. Recoveries of potency and continence were checked serially by interview 1, 3, 6, 9, 12, and 24 months postoperatively. RESULTS: RALP was associated with less blood loss (ORP vs. RALP: 910 mL vs. 640 mL, p<0.001) but a longer operation time (150 minutes vs. 220 minutes, p<0.001) than was ORP. No statistically significant differences were found between the two groups for oncological outcomes, such as positive surgical margin (40% vs. 39%, p=0.911) or biochemical recurrence (12% vs. 7%, p=0.155). The overall functional outcomes showed no statistically significant differences at 2 years of follow-up (continence: 97% vs. 94%, p=0.103; potency: 51% vs. 56%, p=0.614). In the results of an inter-subgroup analysis, potency recovery was more rapid in patients who underwent RALP in a small-volume prostate than in those who underwent ORP in a small-volume prostate (3 months: 24% vs. 0%, p=0.005; 6 months: 36% vs. 10%, p=0.024). However, patients who underwent RALP in a large-volume prostate were less likely to recover continence than were patients who underwent ORP in a large-volume prostate (97% vs. 88%, p=0.025). CONCLUSIONS: Patients can be expected to recover erectile function more quickly after RALP than after ORP, especially in cases of a small prostate volume.
Erectile Dysfunction
;
Follow-Up Studies
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Humans
;
Male
;
Prostate
;
Prostatectomy
;
Prostatic Neoplasms
;
Recurrence
;
Robotics
;
Urinary Incontinence
3.A Study on the Changes in Left Ventricular Function by Experimental Coronary Artery Occlusion and Reperfusion.
Bong Kwan SEO ; Mun Hong DOH ; Joong Hyeon CHO ; Sun Il CHUNG ; Hyeon Ok LIM ; Sung Kyeong WOO ; Cheol Ho KIM ; Byung Hee OH ; Young Woo LEE
Korean Circulation Journal 1990;20(1):98-107
In order to observe the changes in left ventricular function during coronary artery occlusion and reperfusion, left anterior descending (LAD) coronary arteries in the anesthetized dogs were occluded for 1 hour and then reperfused for 4 hours. Hemodynamic indexes of global systolic and diastolic function and regional wall thickness changes as a regional contractile index were measured during occlusion and reperfusion. The results were as follows; 1) Indexes of global systolic function (left ventricular peak systolic pressure, peak positive dP/dt) and global diastolic function (peak negative dP/dt, time constant, left ventricular end-diastolic pressure) showed deterioration in early occlusion period (10-30 minutes) but gradually improved even if coronary occlusion persisted. Reperfusion did not induce significant changes except that peak positive dP/dt transiently deteriorated 30 minutes after reperfusion and left ventricular end-diastolic pressure decreased 1.5-2 hours after reperfusion. 2) Indexed of regional function (i.e, end-diastolic thickness and % systolic thickening of anterior left ventricular wall) deteriorated by 10 minutes' occlusion which persisted during the entire occlusion period. Reperfusion induced no significant improvement in regional contractile function compared with occlusion 60 minutes' data, which suggested reperfusion for 4 hours after 1 hour's LAD occlusion may be insufficient for the ischemic region to recover its contractility. 3) Reperfusion arrhythmia (ventricular tachycardia) was noted in most (6/9) of the dogs, one of which deteriorated into ventricular fibrillation and the others spontaneously converted to normal sinus rhythm.
Animals
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Arrhythmias, Cardiac
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Blood Pressure
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Coronary Occlusion
;
Coronary Vessels*
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Dogs
;
Hemodynamics
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Reperfusion*
;
Ventricular Fibrillation
;
Ventricular Function, Left*
4.Analysis of postpneumonectomy complications.
Gang Bae HUH ; Sung Rae CHO ; Su Hyeon KIM ; Hyeon Cheol HA ; Sung Dal PARK ; Jae Sung LEE ; Song Myung KIM
The Korean Journal of Thoracic and Cardiovascular Surgery 1993;26(8):613-619
No abstract available.
5.Value of the New 5-Tiered Prostate Cancer Grade Group System on Predicting Oncological Outcomes for Radical Prostatectomy Population in Korea
Minhyun CHO ; Sangjun YOO ; Juhyun PARK ; Chang Wook JEONG ; Ja Hyeon KU ; Cheol KWAK ; Hyeon Hoe KIM ; Min Chul CHO ; Hyeon JEONG
Korean Journal of Urological Oncology 2018;16(2):75-81
PURPOSE: We evaluated the prognostic value of the 5-tiered grade group in Korean patients who underwent radical prostatectomy. MATERIALS AND METHODS: Between 1996 and 2016, a number of 2,883 consecutive patients who underwent radical prostatectomy were included for the analysis. The impacts of biopsy and pathologic grade group on predicting biochemical recurrence (BCR) were assessed using multivariate analysis. Median follow-up duration was 49.0 months. RESULTS: Mean age was 66.5 years and prostate-specific antigen (PSA) was 11.8 ng/mL. Prostate cancer was locally advanced on magnetic resonance imaging in 13.4%. Biopsy grade group was as follows: 1 (46.8%), 2 (19.8%), 3 (14.2%), 4 (14.1%), and 5 (5.1%). Pathology stage was ≤T2 in 63.6%, T3a in 26.0%, and T3b/T4 in 10.4% patients. Pathologic grade was as follows: 1 (31.3%), 2 (37.9%), 3 (20.2%), 4 (4.7%), and 5 (5.1%). In multivariate analysis using biopsy-related variables, biopsy grade group (1, reference; 2, hazard ratio [HR], 1.771; p=0.001; 3, HR, 2.736; p < 0.001; 4, HR, 2.966; p < 0.001; 5, HR, 3.707; p < 0.001) was associated with BCR-free survival, PSA level and % positive core. In multivariate analysis using pathologic outcomes, pathologic grade group (1, reference; 2, HR, 1.882; p < 0.001; 3, HR, 3.352; p < 0.001; 4, HR, 3.890; p < 0.001; 5, HR: 3.118, p < 0.001) was associated with BCR-free survival in addition to pathologic stage and positive surgical margin. CONCLUSIONS: New 5-tiered grading system could be useful for predicting oncological outcomes in Korean patients although its role for distinguishing outcomes between patients with grade groups 3–5 need to be validated before wide application of this grade system in Korea.
Biopsy
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Follow-Up Studies
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Humans
;
Korea
;
Magnetic Resonance Imaging
;
Multivariate Analysis
;
Neoplasm Grading
;
Pathology
;
Prostate
;
Prostate-Specific Antigen
;
Prostatectomy
;
Prostatic Neoplasms
;
Recurrence
6.Surgical evaluation of diaphragmatic hernia.
Gang Bae HUH ; Hyeon Cheol HA ; Chang Su KIM ; Jae Sung LEE ; Sung Rae CHO ; Song Myung KIM
The Korean Journal of Thoracic and Cardiovascular Surgery 1993;26(2):96-101
No abstract available.
Hernia, Diaphragmatic*
7.Gemcitabine-Induced Radiation Recall Dermato-Myositis.
Hee Sun NO ; Hee Hwan LIM ; Jung Hoon KIM ; Jang Hyun CHO ; Jeong Kwon HUH ; Sung In CHO ; Ji Young YOO ; Cheol Hyeon KIM ; Jae Cheol LEE
Tuberculosis and Respiratory Diseases 2006;61(2):167-170
A radiation recall reaction refers to an inflammatory reaction at previous irradiated areas subsequent to the administration of a variety of pharmacological agents. The skin is the major site of radiation recall reactons with the muscle and internal organs being less commonly affected. These reactions usually occur days to weeks after exposure to the causative agents. We report a case of gemcitabine-induced radiation recall dermato-myositis the developed in a female patient with a metastatic non-small cell lung cancer. She had received a palliative radiation therapy of 3900 cGy to the metastatic lesion on the femur shaft prior to chemotherapy. The pain, swelling and erythema of the left thigh resolved after the cessation of gemcitabine and the use of a systemic steroid.
Carcinoma, Non-Small-Cell Lung
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Drug Therapy
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Erythema
;
Female
;
Femur
;
Humans
;
Lung Neoplasms
;
Radiodermatitis
;
Skin
;
Thigh
8.Development and Evaluation of Home Doctor Registration Program.
Bong Yul HUH ; Cheol Hwan KIM ; Tae Jin PARK ; Ka Young LEE ; Be Long CHO ; Hyeon Ju KIM
Journal of the Korean Academy of Family Medicine 1998;19(10):801-810
BACKGROUND: Ministry of Health and Welfare offered' Home Doctor Registration Program' to rein force primary care and to increase the efficiency of national health delivery system. But, it failed because it was not supported by doctors and nations. We designed this study to develope and evaluate apractical version of 'Home Doctor Registration Program'. METHODS: We invited primary care doctors who were concerned with 'Home Doctor Registration Program' via PC-communication and developed a practical version of this program. After 6 monte of this program, surveys on participated docters and patients were done. RESULTS: 8 primary care doctors and 285 patients have participated in this study. All the 8 doctors have offered the 4 obligatory services and 3 doctors have offered telephone counselling and no doctor has offered visiting examination. After 6 months of this program, CCPQ score was increased significantly and all the health risk factors of participated patients were decreased. Doctors have thought that Family Chart Service, Health Risk Appraisal, Vaccination and Screening Test are more necessary in this program. But Patients have thought that Telephone Counselling and Visiting Examination are more important in this program. CONCLUSION: Almost of participated doctors and patients have been satisfied with this practical version of 'Home Doctor Registration Program'. But, subjective feeling about which service was more necessary in this program was different between doctors and patients.
Health Services
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Humans
;
Mass Screening
;
Primary Health Care
;
Risk Factors
;
Telephone
;
Vaccination
9.Percutaneous Coronary Intervention versus Coronary Artery Bypass Grafting for Patients with Multivessel Coronary Artery Disease: The Korean Multicenter Revascularization Registry(KORR).
Hyeon Cheol GWON ; Seung Hee CHOI ; Byung Il CHOI ; Seung Yun CHO ; Young Moo RO ; Won Ro LEE
Korean Circulation Journal 2003;33(9):786-796
BACKGROUND AND OBJECTIVE: Despite many multicenter trials on percutaneous coronary intervention (PCI), versus coronary artery bypass surgery (CABG), in multivessel coronary artery disease (MVCAD), the most appropriate treatment remains a matter of debate. Moreover, studies comparing the 2 strategies in eastern society are rare. The aim of this study was to assess the relative merits of PCI and CABG in MVCAD in the post-stent era. SUBJECTS AND METHODS: Patients, with MVCAD, indicated for revascularization were enrolled from 9 centers in Korea. Out of the 3,279 patients in the registry, 2102 (CABG 609 patients, PCI 1,493 patients) were selected for a comparison of their outcomes, after a statistical adjustments for the disparity for 6 independent risk factors, for the prognosis between the two groups. RESULTS: There was no significantly different in the 3 year survival rates between PCI and CABG groups. In the diabetic patients, the 3-year mortality rate in PCI group was 1.6-fold higher than in the CABG group, although it was not statistically significant (PCI 19.8%, CABG 12.5%, p=0.24). The incidence of cerebrovascular events (CVE) was higher in the CABG group. The thirty-day death rate, myocardial infarction or CVE were higher in the CABG group (PCI 1.3%, CABG 4.2%, p<0.001). Both the long and short-term revascularization rates were higher in PCI group compared to CABG group. CONCLUSION: Our Korean registry demonstrated a comparable survival rate between the PCI and CABG groups. A PCI was associated with a lower early morbidity, but with a greater need for repeated revascularization compared to a CABG.
Angioplasty, Balloon, Coronary
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Coronary Artery Bypass*
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Coronary Artery Disease*
;
Coronary Vessels*
;
Humans
;
Incidence
;
Korea
;
Mortality
;
Myocardial Infarction
;
Percutaneous Coronary Intervention*
;
Prognosis
;
Risk Factors
;
Survival Rate
10.Physical properties of novel composite using Portland cement for retro-filling material.
Sang Jin LEE ; Ok In CHO ; Jiwan YUM ; Jeong Kil PARK ; Bock HUR ; Hyeon Cheol KIM
Journal of Korean Academy of Conservative Dentistry 2010;35(6):445-452
OBJECTIVES: The aim of this study was to compare apical sealing ability and physical properties of MTA, MTA - AH-plus mixture (AMTA) and experimental Portland cement - Epoxy resin mixture (EPPC) for a development of a novel retro-filling material. MATERIALS AND METHODS: Forty-nine extracted roots were instrumented and filled with gutta-percha. Apical root was resected at 3 mm and the retro-filling cavity was prepared for 3 mm depth. Roots were randomly divided into 3 groups of 15 roots each. The retro-filling was done using MTA, AMTA, and EPPC as the groups divided. Four roots were used as control groups. After setting in humid condition for 24 hours, the roots were immersed in 1% methylene blue dye solution for 72 hours to test the apical leakage. After immersion, the roots were vertically sectioned and photos were taken to evaluate microleakage. Setting times were measured with Vicat apparatus and digital radiographs were taken to evaluate aluminum equivalent thickness using aluminum step wedge. The results of microleakage and setting time were compared between groups using one-way ANOVA and Scheffe's post-hoc comparison at the significance level of 95%. RESULTS: AMTA and EPPC showed less microleakage than MTA group (p < 0.05). AMTA showed the highest radio-opacity than other groups and the novel EPPC showed 5 mm aluminum thickness radio-opacity. EPPC showed the shortest initial and final setting times than other groups while the MTA showed the longest (p < 0.05). CONCLUSIONS: Under the condition of this study, the novel composite using Portland cement-Epoxy resin mixture may useful for retro-filling with the properties of favorable leakage resistance, radio-opacity and short setting time.
Aluminum
;
Glutamates
;
Guanine
;
Gutta-Percha
;
Immersion
;
Methylene Blue
;
Pemetrexed