1.Accuracy of Dose Estimation in High Dose Rate Intracavitary Radiotherapy of Carcinoma of the Uterine Cervix.
Seung Jae HUH ; Sung Whan HA ; Kyu Young CHOI
Journal of the Korean Society for Therapeutic Radiology 1987;5(2):137-140
In brachytherapy of uterine cervical cancer using a high dose rate remote afterloading system, it is of prime importance to deliver a accurate dose in each fractionated treatment by minimizing the difference between the pre-treatment planned and post-treatment calculated doses. The post-treatment calculated point A dose was not much different from the pretreatment planned dose (500 cGy). The average+/-standard deviation was 500+/-18 cGy and 84 percent of 82 intracavitary radiotherapy was within the range of 500+/-25 cGy.
Brachytherapy
;
Cervix Uteri*
;
Female
;
Radiotherapy*
;
Uterine Cervical Neoplasms
2.The Statistical Study on Acute Drug and Chemicals Intoxication in Children.
Young Chang KIM ; Hyung Jin CHOI ; Jae Ock PARK ; Dong Whan LEE ; Sang Jhoo LEE
Journal of the Korean Pediatric Society 1981;24(8):760-765
A statistical study on 135 cases of acute poisoning who were treated in Pediatric department of Soon Chun Hyang College Hospital from May, 1974 to August, 1980 was performed. The results are as follows: 1. Seasonal incidence was more prevalent in summer. (from June to August, Table 2) 2. It occurred more frequently in male than female and high incidence was noted in 1 to 3 year-old age group(Table 5). 3. The causative chemicals were found to be 58 kinds & the commonest chemical was insecticides which were 16.3% of all cases. Rodenticides and tranquilizers(11.9%), D.D.S. (5.1%), kerosence(3.7%) were the next common causatvie agents. And drugs were more frequent than non-drug agents(Table. 3). 4. Accidental poisoning was more frequent than therapeutic and suididal purpose(Table 6). 5. It occurred most frequently during 3 to 6 O'lock in the afternoon and especially from 6 to 9 O'lock in morning and in the evening in the 0 to 1 year-old age. 6. There were complications which were aspiration pneumonia(3 cases). Corrosive pharyngitis (1 cases) and anoxic brain damage(1 cases) respectively. And death occurred in 1 cases due to insecticide.
Brain
;
Child*
;
Child, Preschool
;
Female
;
Humans
;
Incidence
;
Insecticides
;
Male
;
Pharyngitis
;
Poisoning
;
Rodenticides
;
Seasons
;
Statistics as Topic*
3.Radiotherapy for Age-related Macular Degeneration Associated with Subfoveal Neovascular Membrane.
Seok Joon PARK ; Il Han KIM ; Sung Whan HA ; Charn Il PARK ; Hong Gyun WU ; Sang Kyu CHOI ; Hum CHUN
Journal of the Korean Ophthalmological Society 1999;40(1):168-175
The only effective treatment for subfoveal neovascular membrane in age-related macular degeneration is laser photocoagulation, which is associated with decreased visual acuity following treatment in most patients. Radiation treatment for subfoveal neovascular membrane has been tried, but its effectiveness and necessary dose are not determined yet. Twelve eyes with subfoveal neovascular membranes received X-ray radiation with the dose of 1980cGy or 1440cGy. After a minimum 6 month follow-up, 4 eyes had improved, 6 eyes had stable and 2 eyes had worsened visual acuity. To date no negative side effects have been observed. We could not find difference in visual outcome between two dose groups due to the small sample size. Regarding the poor natural course of age-related macular degeneration, these results suggest a possible beneficial effect of radiation treatment with total dose of 1980 or 1440cGy and justify the further treatments and evaluations of the radiotherapy.
Follow-Up Studies
;
Humans
;
Light Coagulation
;
Macular Degeneration*
;
Membranes*
;
Radiotherapy*
;
Sample Size
;
Visual Acuity
4.Gastroscopic Findings of Rural Residents with Symptoms of Chronic Gastrointestinal Disorder.
Jung Han PARK ; Byung Yeol CHUN ; Dong Koo LEE ; Yong Whan CHOI
Korean Journal of Preventive Medicine 1986;19(1):85-90
This study was conducted in July-August, 1984, to define the causes of chronic gastrointestinal symptoms in rural population and to provide data for the management of such patients. A household survey was conducted to identify all the residents of Youngchun and Sungju counties in Kyungpook province who were over 20 years of age, had chronic upper gastrointestinal symptoms for over the last 6 months, never had medical examination for the symptoms, and volunteered to participate in the gastroscopic examination. Gastroscopy was done for 106 males and 108 females. Gastric ulcer was found in 16.8% of all the examinees, duodenal ulcer in 15.4%, gastritis in 14.0%, and gastric cancer in 3.7%. No lesion was found by gastroscopy in 52.3%. Gastric ulcer more common in male(26.4%) than in female(7.4%) (p<0.01) and the same was true for duodenal ulcer(20.8% of male, 10.2% of female). Gastric cancer was found in 7.5% of the male while none of the female had gastric cancer. A higher proportion of the female(68.5%) showed normal finding in the gastroscopy than the male(35.9%) (p<0.01). No significant association was found between the upper gastrointestinal symptoms and the gastroscopic findings. The higher prevalence rate of gastric ulcer than that of duodenal ulcer in this study which is the reverse of the study findings of urban area in Korea and western countries may be related in part with the dietary habit and social environment of the rural population. Although early diagnosis is the most important for the treatment of gastric cancer, many of the people with chronic upper gastrointestinal complaints defer the diagnosis and treatment. It is may be due to lack of the knowledge of disease and the health care attitude of the rural people. A national program for the health education and mass screening for the gastric cancer should be developed.
Delivery of Health Care
;
Diagnosis
;
Duodenal Ulcer
;
Early Diagnosis
;
Family Characteristics
;
Female
;
Food Habits
;
Gastritis
;
Gastroscopy
;
Gyeongsangbuk-do
;
Health Education
;
Humans
;
Korea
;
Male
;
Mass Screening
;
Prevalence
;
Rural Population
;
Social Environment
;
Stomach Neoplasms
;
Stomach Ulcer
5.Ultrastructural Differences between Inner and Outer Layers of Human Lumbar Ligamentum Flavum.
You Sam WON ; Seung Min LEE ; Chun Sik CHOI ; Moon Bae JU ; Whan EOH ; Jong Hyun KIM ; Yun Kwan PARK ; Jung Keun SUH
Journal of Korean Neurosurgical Society 2000;29(5):599-603
No abstract available.
Humans*
;
Ligamentum Flavum*
6.The clinical evaluation of selective neck dissection on tuberculouscervical lymphadenitis.
Young Hoon CHUN ; Young JANG ; Dong Whan KIM ; Sang Hyun KIM ; Yong Jae KIM ; Duk Hee CHUNG ; Jong Ouck CHOI ; Kwang Yoon JUNG
Korean Journal of Otolaryngology - Head and Neck Surgery 1992;35(3):414-418
No abstract available.
Lymphadenitis*
;
Neck Dissection*
;
Neck*
7.Usefulness of 3-Dimensional-Printed Breast Surgical Guides for Undetectable Ductal Carcinoma In Situ on Ultrasonography: A Report of 2 Cases
Zhen-Yu WU ; Young Joo LEE ; Yungil SHIN ; Soojeong CHOI ; Soo Yeon BAEK ; Jung Whan CHUN ; Loai Saleh ALBINSAAD ; Woo Jung CHOI ; Namkug KIM ; BeomSeok KO
Journal of Breast Cancer 2021;24(3):349-355
Tumor localization is challenging in the context of ductal carcinoma in situ (DCIS) treated with breast-conserving surgery. Conventional localization methods are generally performed under the guidance of ultrasonography or mammography and are rarely performed with magnetic resonance imaging (MRI), which is more sensitive than the aforementioned modalities in detecting DCIS. Here, we report the application of MRI-based individualized 3-dimensional (3D)-printed breast surgical guides (BSGs) for patients with breast cancer.We successfully resected indeterminate and suspicious lesions that were only detected using preoperative MRI, and the final histopathologic results confirmed DCIS with clear resection margins. MRI guidance combined with 3D-printed BSGs can be used for DCIS localization, especially for lesions easily detectable using MRI only.
8.Usefulness of 3-Dimensional-Printed Breast Surgical Guides for Undetectable Ductal Carcinoma In Situ on Ultrasonography: A Report of 2 Cases
Zhen-Yu WU ; Young Joo LEE ; Yungil SHIN ; Soojeong CHOI ; Soo Yeon BAEK ; Jung Whan CHUN ; Loai Saleh ALBINSAAD ; Woo Jung CHOI ; Namkug KIM ; BeomSeok KO
Journal of Breast Cancer 2021;24(3):349-355
Tumor localization is challenging in the context of ductal carcinoma in situ (DCIS) treated with breast-conserving surgery. Conventional localization methods are generally performed under the guidance of ultrasonography or mammography and are rarely performed with magnetic resonance imaging (MRI), which is more sensitive than the aforementioned modalities in detecting DCIS. Here, we report the application of MRI-based individualized 3-dimensional (3D)-printed breast surgical guides (BSGs) for patients with breast cancer.We successfully resected indeterminate and suspicious lesions that were only detected using preoperative MRI, and the final histopathologic results confirmed DCIS with clear resection margins. MRI guidance combined with 3D-printed BSGs can be used for DCIS localization, especially for lesions easily detectable using MRI only.
9.A Case of Cardiac Amyloidosis with Complete Atrioventricular Conduction Block Treated by Permanent Pacemaker.
Seung Won JIN ; Ho Joong YOUN ; Sang Hyun LIM ; Yung Whan KIM ; Jong Hyun YOUN ; Hee Kyung CHUN ; Wook Sung CHUNG ; Jae Hyung KIM ; Kyu Bo CHOI ; Soon Jo HONG ; Kyo Young LEE ; Sang In SHIM
Korean Circulation Journal 1996;26(5):1058-1067
In generalized amyloidosis, involvement of heart is not rare, but development fo severe conduction distubance in cardiac amyloidosis is a rare presentation in a clinical situation. We report the first case in Korea of cardiac amyloidosis with complete atrioventricular block, which was confirmed by endomyocardial biopsy. A 59-year-old woman was admitted due to drowsy mentality. We observed a severe atrioventricular conduction disturbance on the electrocardiogram and a marked hypertrophied ventricular wall and a granular sparkling appearance within the wall, a characteristic feature in cardiac infiltration of amyloidosis, on the echocardiography. Endomyocardial biopsy was performed and revealed extensive deposition of amorphous eosinophilic materials within the cardiac muscle cells. Polarizing illumination after Congo-red staining showed typical green birefrigence. We performed a insertion of permanent pacemaker(VVI type) for the treatment of complete atrioventricular block.
Amyloidosis*
;
Atrioventricular Block*
;
Biopsy
;
Echocardiography
;
Electrocardiography
;
Eosinophils
;
Female
;
Heart
;
Humans
;
Korea
;
Lighting
;
Middle Aged
;
Myocytes, Cardiac
10.Outcome Comparison of Instrumented Posterolateral Fusion and Posterior Lumbar Interbody Fusion with Cages for Surgical Management of Lumbar Spondylolisthesis in Adults.
Sung Ho MUN ; Seung Min LEE ; Jae Young YANG ; Chun Sik CHOI ; Moon Bae JU ; Whan EOH ; Yun Kwan PARK ; Jung Keun SUH
Journal of Korean Neurosurgical Society 1998;27(11):1548-1557
For the primary fusion of adult's lumbar spondylolisthesis the authors performed either posterolateral fusion(PLF) with transpedicular screw fixation, or posterior lumbar interbody fusion(PLIF) with cages and transpedicular screw fixation, on 75 patients during five years between Jan. 1993 and Dec. 1997. The outcomes were retrospectively reviewed with emphasis on comparison of the results of these two surgical methods. Between patients treated with PLF(PLF group) and PLIF(PLIF group) there were no differences in distribution of preoperative variables such as patients' age and gender, type, level, grade of spondylolisthesis, and symptom durations. Mean follow-up period was 22.3 months in PLF group(n=44) and 17.4 months in PLIF group(n=31) (p<0.001). The rate of fusion was 85% in PLF group, and 94% in PLIF group(p=0.292). The postoperative outcome, expressed as mean follow-up score of Prolo scale, was 6.86 in PLF group and 7.42 in PLIF group(p=0.007). The variables that were associated with the outcomes were the level of spondylolisthesis(p=0.001) and the type of fusion (p=0.023). Variables such as age, gender, type and grade of spondylolisthesis, preoperative symptom duration, radiological findings of fusion status, change in disc height, and change in sagittal angle were not associated with the outcomes. The complication rate was 11% in PLF group and 19% in PLIF group. Overall successful results, defined by 7 or more in follow-up score of Prolo scale, were seen in 68% of PLF group and 87% of PLIF group(p=0.098). It is concluded that better surgical outcomes were obtained by PLIF methods in adults with lumbar spondylolisthesis, but with regards to the incidence of complications, although mostly minor and reversible, was more frequent in PLIF group.
Adult*
;
Follow-Up Studies
;
Humans
;
Incidence
;
Retrospective Studies
;
Spondylolisthesis*