1.Recent Advances in Radiation Therapy of Lung Cancer.
Tuberculosis and Respiratory Diseases 2000;49(6):665-675
No abstract available.
Lung Neoplasms*
;
Lung*
2.Comparison of elective inguinal node irradiation techniques in anal cancer.
Jihye CHA ; Jinsil SEONG ; Ki Chang KEUM ; Chang Geol LEE ; Woong Sub KOOM
Radiation Oncology Journal 2011;29(4):236-242
PURPOSE: To compare photon thunderbird with deep match (technique 1) with 3-field technique with electron inguinal boost (technique 2) in acute skin toxicity, toxicity-related treatment breaks and patterns of failure in elective inguinal radiation therapy (RT) for curative chemoradiation in anal cancer. MATERIALS AND METHODS: Seventeen patients treated between January 2008 and September 2010 without evidence of inguinal and distant metastasis were retrospectively reviewed. In 9 patients with technique 1, dose to inguinal and whole pelvis area was 41.4 to 45 Gy and total dose was 59.4 Gy. In 8 patients with technique 2, doses to inguinal, whole pelvis, gross tumor were 36 to 41.4 Gy, 36 to 41.4 Gy, and 45 to 54 Gy, respectively. The median follow-up period was 27.6 and 14.8 months in group technique 1 and 2, respectively. RESULTS: The incidences of grade 3 radiation dermatitis were 56% (5 patients) and 50% (4 patients), dose ranges grade 3 dermatitis appeared were 41.4 to 50.4 Gy and 45 to 54 Gy in group technique 1 and 2, respectively (p = 0.819). The areas affected by grade 3 dermatitis in 2 groups were as follow: perianal and perineal areas in 40% and 25%, perianal and inguinal areas in 0% and 50%, and perianal area only in 60% and 25%, respectively (p = 0.196). No inguinal failure has been observed. CONCLUSION: Photon thunderbird with deep match technique and 3-field technique with electron inguinal boost showed similar incidence of radiation dermatitis. However, photon thunderbird with deep match seems to increase the possibility of severe perineal dermatitis.
Anus Neoplasms
;
Chemoradiotherapy
;
Dermatitis
;
Electrons
;
Follow-Up Studies
;
Humans
;
Incidence
;
Neoplasm Metastasis
;
Pelvis
;
Retrospective Studies
;
Skin
3.Keratosis Punctata Palmaris et Plantaris in a Patient with Hepatoma.
Min Geol LEE ; Kyung Hee WHANG ; Won Ho LEE ; Soo Il CHUN ; Chang Jo KOH
Korean Journal of Dermatology 1982;20(1):163-169
No abstract available.
4.A Case of Annular Pustular Psoriasis.
Kyung Hee WHANG ; Min Geol LEE ; Won Ho LEE ; Soo Il CHUN ; Chang Jo KOH
Korean Journal of Dermatology 1982;20(1):157-161
Annular pustular psoriasis is a rare variant of the generalized pustular psoriasis characterized by annular lesions with rapidly evolving pustules, associated mild toxicity, and rapid response to therapy. We present a case of annular pustular psoriasis in a 17-year-old male, in whom no previous history of psoriasis was found. The skin lesions were characterized clinically by annular to gyrate erythematous lesions with pinpoint pustules near the periphery on both shoulders, upper arms, and back areas. The histology showed large intraepidermal spongiform pustules. Most of the skin lesions disappeared within 1 week with topical corticosteroid cream.
5.Comparison the Cortical Perforation of both the Recipient Beds and Grafts with the Cortical Perforation of Only the Recipient Beds.
In Geol CHANG ; Dong Geol LEE ; Chang Hoon SHIN ; Jongrak HONG
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2009;35(6):467-473
PURPOSE: The aim of this study is to compare volume and revascularization of autogenous block bone grafts in simultaneously cortical perforation of recipient beds and grafts, and only cortical perforation of recipient beds. MATERIALS AND METHODS: Two block bone in 8mm diameter was harvested in both skull using trephine bur on 20 New Zealand white rabbits. Harvested block bone was grafted on both inferior border of mandible. On the left side(experimental side), cortical bone of recipient beds and graftwere perforated, and on the right side(control side), the only recipient bed was perforated. The rabbits had been sacrificed and infused the India ink for the observation of revascularization at 20 day and 40 day after surgery. The specimens were processed for H-E staining and quantitative analysis(independent t-test, p<0.01) was made under an optical microscope. In additional, specimens were processed for the observation of revascularization. RESULTS: After 20 days, more bone volume was observed in experimental group, but no significant difference between two groups(p=0.106). There were significantly more bone volume in the experimental group at 40 days after surgery(p<0.01). After 20 days, more discrete vascular sprouts were observed in experimental side, but no difference at 40 days after surgery. CONCLUSION: We conclude that the cortical perforation of both the recipient beds and grafts improve revascularization at early stage and overall graft persistence.
Carbon
;
India
;
Ink
;
Mandible
;
Rabbits
;
Skull
;
Transplants
6.Sepsis in Patients Receiving Immunosuppressive Drugs in Korea: Analysis of the National Insurance Database from 2009 to 2013.
Seung Young OH ; Songhee CHO ; Hannah LEE ; Eun Jin CHANG ; Se Hee MIN ; Ho Geol RYU
Korean Journal of Critical Care Medicine 2015;30(4):249-257
BACKGROUND: The aim of this study is to evaluate the influence of immunosuppressants on in-hospital mortality from sepsis. METHODS: Using data of the Health Insurance Review & Assessment Service, we collected data from patients who were admitted to the hospital due to sepsis from 2009 to 2013. Based on drugs commonly used for immunosuppression caused by various diseases, patients were divided into three groups; immunosuppressant group, steroid-only group, and control group. Patients with no history of immunosuppressants or steroids were assigned to the control group. To identify risk factors of in-hospital mortality in sepsis, we compared differences in patient characteristics, comorbidities, intensive care unit (ICU) care requirements, and immunodeficiency profiles. Subgroup analysis according to age was also performed. RESULTS: Of the 185,671 included patients, 13,935 (7.5%) were in the steroid-only group and 2,771 patients (1.5%) were in the immunosuppressant group. The overall in-hospital mortality was 38.9% and showed an increasing trend with age. The steroid-only group showed the lowest in-hospital mortality among the three groups except the patients younger than 30 years. The steroid-only group and immunosuppressant group received ICU treatment more frequently (p < 0.001), stayed longer in the hospital (p < 0.001), and showed higher medical expenditure (p < 0.001) compared to the normal group. Univariate and multivariate analyses revealed that age, male gender, comorbidities (especially malignancy), and ICU treatment had a significant effect on in-hospital mortality. CONCLUSIONS: Despite longer hospital length of stay and more frequent need for ICU care, the in-hospital mortality was lower in patients taking immunosuppressive drugs than in patients not taking immunosuppressive drugs.
Comorbidity
;
Health Expenditures
;
Hospital Mortality
;
Humans
;
Immunosuppression
;
Immunosuppressive Agents
;
Insurance*
;
Insurance, Health
;
Intensive Care Units
;
Korea*
;
Length of Stay
;
Male
;
Mortality
;
Multivariate Analysis
;
Risk Factors
;
Sepsis*
;
Steroids
7.Postoperative Radiation Therapy in Resected N2 Stage Non-Small Cell Lung Cancer.
Journal of the Korean Society for Therapeutic Radiology 1993;11(2):285-294
A total of forty patients with resected N2 stage non-small cell lung cancer treated with postoperative adjuvant radiation therapy between Jan. 1975 and Dec. 1990 at the Department of Radiation Oncology, Yonsei University College of Medicine, Yonsei Cancer Center were retrospectively analysed to evaluate whether postoperative radiation therapy improves survival. Patterns of failure and prognostic factors affecting survival were also analysed. The 5 year overall and disease free survival rate were 26.3%, 27.3% and median survival 23.5 months. The 5 year survival rates by T-stage were T1 66.7%, T2 25.6% and T3 12.5%. Loco-regional failure rate was 14.3% and distant metastasis rate was 42.9% and both 2.9%. Statistically significant factor affecting distant failure rate was number of postitive lymph nodes(>= 4). This retrospective study suggests that postoperative radiation therapy in resected N2 stage non-small cell lung cancer can reduce loco-regional recurrence and may improve survival rate as compared with other studies which were treated by surgery alone. Further study of systemic control is also needed due to high rate of distant metastasis.
Carcinoma, Non-Small-Cell Lung*
;
Disease-Free Survival
;
Humans
;
Neoplasm Metastasis
;
Radiation Oncology
;
Recurrence
;
Retrospective Studies
;
Survival Rate
8.Correlation of human sperm chromatin heterogeneity with sperm penetration assay.
Pyl Ryang LEE ; Myung Geol PANG ; Shin Yong MOON ; Yoon Seok CHANG
Korean Journal of Obstetrics and Gynecology 1993;36(6):784-799
No abstract available.
Chromatin*
;
Humans*
;
Population Characteristics*
;
Sperm-Ovum Interactions*
;
Spermatozoa*
9.Chemoradiotherapy in squamous cell carcinoma of the anal canal: a single institution experience.
Kyung Hwan KIM ; Jee Suk CHANG ; Ki Chang KEUM ; Joong Bae AHN ; Chang Geol LEE ; Woong Sub KOOM
Radiation Oncology Journal 2013;31(1):25-33
PURPOSE: We reviewed the treatment outcomes and prognostic factors for patients with anal canal carcinoma who were treated with curative intent chemoradiotherapy (CRT) at Severance Hospital from 2005 to 2011. MATERIALS AND METHODS: Data for 38 eligible patients treated during this period were reviewed. All patients were treated with curative intent using radiotherapy (RT) with (n = 35) or without concomitant chemotherapy (n = 3). Among 35 patients who received CRT, most of the chemotherapeutic regimens were either 5-fluorouracil (5-FU) plus mitomycin C (23 patients) or 5-FU plus cisplatin (10 patients). Recurrence-free survival (RFS), colostomy-free survival (CFS), overall survival (OS), and locoregional control (LRC) rates were calculated using the Kaplan-Meier method and survival between subgroups were compared using the log-rank test. Cox's proportional hazard model was used for multivariate analysis. RESULTS: Over a median follow-up period of 44 months (range, 11 to 96 months), 3-year RFS, CFS, OS, and LRC were 80%, 79%, 85%, and 92%, respectively. In multivariate analysis, tumor size >4 cm was an independent predicting factor for poorer RFS (hazard ratio [HR], 6.35; 95% confidence interval [CI], 1.42 to 28.5; p = 0.006) and CFS (HR, 6.25; 95% CI, 1.39-28.0; p = 0.017), while the presence of external iliac lymph node metastasis was an independent prognosticator for poorer OS (HR, 9.32; 95% CI, 1.24 to 70.3; p = 0.030). No treatment-related colostomies or deaths occurred during or after treatment. CONCLUSION: Curative intent CRT resulted in excellent outcomes that were comparable to outcomes in previous randomized trials. No severe treatment-related toxicities were observed.
Anal Canal
;
Anus Neoplasms
;
Carcinoma, Squamous Cell
;
Chemoradiotherapy
;
Cisplatin
;
Colostomy
;
Fluorouracil
;
Follow-Up Studies
;
Humans
;
Lymph Nodes
;
Mitomycin
;
Multivariate Analysis
;
Neoplasm Metastasis
;
Proportional Hazards Models
10.Improved fertilization rate in human in vitro fertilization with the use of a TEST-York Buffer.
Myung Geol PANG ; Ki Chul KIM ; Chang Jae SHIN ; Shin Yong MOON ; Jin Yong LEE ; Yoon Seok CHANG
Korean Journal of Fertility and Sterility 1992;19(1):57-64
No abstract available.
Fertilization in Vitro*
;
Fertilization*
;
Humans*