• Tuberculosis and Respiratory Diseases
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• v.47 no.5
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• pp.660-668
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• 1999

Background: Lung cancer continues to increase and one half of all cases of lung cancer occur in patients age 65 years and older. However, it seems that lung cancer is less treatable in elderly patients because of co-morbid illness or poor tolerance of surgery and chemotherapy. The intention of this study is to seek an adequate treatment approach for lung cancer in the elderly through an understanding of its characteristics. Method: The clinical data of 207 patients who were diagnosed with histologically proven lung cancer at the department of internal medicine in Seoul Municipal Boramae Hospital between September 1994 and August 1998 were retrospectively analyzed according to their age groups; group I$\geq$65 years(n=122) and group II<65 years(n=85). Results: The peak incidence of age was 7th decade(36.2%) and male age 65 years and older were 42% of all patients. Although dyspnea was more common in group I(26%) than in group II(11%)(p=.0l), there were no significant difference in other symptoms, stage, and histologic type between two groups. Group I significantly had more patients with poor performance(ECOG 3&4) than group II(35.2% vs.12.9%, p=.000). The percentage of patients with non-small cell carcinoma received supportive care only was significantly higher in group I than in group I(74% vs. 35%, p=.000). However, survival of patients who had curative intent treatment was similar between two groups(median survival 11.3 mos vs. 23 mos, p>.05). The histologic subtype, stage and performance status were significant prognostic factors affecting survival, but age itself was not. Conclusion : Lung cancer is prevalent in the elderly and aggressive diagnosis and treatment should be considered in elderly patients with good performance status.

• Tuberculosis and Respiratory Diseases
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• v.46 no.4
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• pp.455-465
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• 1999

Background: Even though lung cancer has become a major cancer in Korea, national survey for lung cancer has not been available except several reports from individual hospitals. Methods: Korean Academy of Tuberculosis and Respiratory Diseases retrospectively investigated the characteristics of lung cancer diagnosed from January 1997 to December 1997 at general hospitals over 400 beds. Results: Among 3,794 patients, 76.8% are smokers and 89.8% of male patients are smokers. Squamous cell carcinoma is the leading type of lung cancer(44.7%) followed by adenocarcinoma(27.9%). Smoking rate in adenocarcinoma was significantly lower than in squamous cell carcinoma and small cell cancer. Cough is the most common symptom, however, 7.2% are asymptomatic. Bronchoscopic biopsy has a main role in the diagnosis of squamous cell carcinoma and small cell cancer but percutaneous needle biopsy has more important role in adenocarcinoma. Two-thirds of NSCLC patients were found in unresectable advanced stages. Conclusion: In contrast to other countries, squamous cell carcinoma is still the most frequent type of lung cancer. High proportions of smoker and advanced, unresectable lung cancer urge us to develop the program for cessation of smoking and early detection.

• Proceedings of the Korean Information Science Society Conference
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• 2012.06a
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• pp.319-321
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• 2012

u-Health Care 시스템은 장기요양 환자 및 만성질환 보유자에게 의료비 절감 및 수준 높은 의료서비스를 제공 할 수 있는 방안이다. 이러한 의료 서비스를 제공하기 위해 필요한 구성으로 본 논문에선 생체신호 취득 단말기, 신호를 전송하는 스마트폰, 신호를 분석해 환자의 건강 기저선을 분석 할 수 있는 서버로 나뉠 수 있다. 본 논문에서는 이러한 환자에게서 체온, 혈압, 혈당, 산소포화도, 맥박, 심전도, 근전도에 해당하는 생체신호를 수집하는 u-Health Care 시스템을 구성하고 환자의 생체신호를 숫자형 데이터, 심전도, 근전도로 분류해 환자의 생체신호를 분석, 건강이상 상태를 파악하는 자동 분석 시스템을 구현 하였다.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2005.05a
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• pp.475-481
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• 2005

현재 국내외에서는 유비쿼터스에 대한 연구 및 의료도메인에 대한 많은 연구가 진행되고 있다. 그러나 기존의 연구들은 전체적인 시스템에 대한 연구가 대부분이어서 실제 환경을 구축하는데 상당한 어려움이 따르고 있다. 본 연구에서는 위와 같은 문제점을 해결하기 위하여 고위험군 환자를 대상으로 다음과 같은 시나리오를 작성하였다. 시나리오는 Home -medical 서비스, Emergency call center 서비스 그리고 응급차량 서비스로 구성하였다. 본 연구에서는 위와 같은 시나리오를 기반으로 고위험군 환자의 생체 신호를 획득한 후 신경망을 이용하여 생체 신호 데이터를 학습한 후 환자의 이상 징후를 진단하는 CAD시스템의 프레임웍과 환자의 위험 수위를 단계별로 분류하는 알고리즘을 제시한다. 또한 과거의 데이터를 이용하여 미래의 환자상태를 예측하는 CAP시스템의 프레임웍을 제시하고 프레임웍에 대한 타당성을 검증하고자 한다.

• Journal of Chest Surgery
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• v.29 no.4
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• pp.427-432
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• 1996

Eighteen patients operated on for thymoma from 1985 to 1994 were evaluated, 3 with myasthenia gravis and 15 without. Masaoka's clinical staging revealed stage I disease in 5(27.8%), stage ll in 6 (33.3%), stage 111 in 6(33.3%), and stage IV in 1 (5.6%). Of the 18 patients, 10 had surgical resection as the only treatment and the remaining 8 (stage II : 1 patient, stage III : 6 patients, stage IV: 1 patient) had surgical resection with adjuvant preoperative or postoperative radiotherapy and/or chemotherapy There was no operative mortality. Currently, 15 patients are alive, 3 are dead. The mean follow up time for all patients was 3.4 years. Acturlal survival at 5 years was 82.2 $\pm$ 9% for all patients' 100% for those in stage I and II, and 62.5% for those in stage III. Pleural and mediastinal recurrence developed in one patient in stage II which was considered to have noninvasive disease on the operating field. Two patients underwent reoperation for recurrence of thymoma a intervals of 14 months and 52 months. Clinical stage and resectability had a significant prognostic value(p < 0.05). The presence of myasthenia gravis is no longer considered as an adverse factor in survival.

• The Journal of Korean Academy of Prosthodontics
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• v.55 no.2
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• pp.198-204
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• 2017

Maxillofacial defect comes from congenital defect, trauma and surgical resection. Patients with intraoral defect are commonly related to maxillary defect and they need prosthetic rehabilitation. Functional reconstruction of partially edentulous mandible has many limitations. However, if both condyles are intact, maxillofacial prosthesis using partial denture give competent results. In this case, a patient of 58 year-old male has a defect on palate and left mandibular posterior teeth from gunshot. The maxillary defect of this patient is Class IV according to Aramany classification and the mandibular one is Type V according to Cantor and Curtis classification. For retention of the obturator, remaining teeth are fully utilized and artificial teeth are arranged harmoniously to provide stable occlusion. Mandibular RPD covered limited range of deformed soft tissue derived from mandibular resection surgery. With these treatments, the patient in this case showed improvements in mastication, swallowing and speech.

• Journal of the Korea Convergence Society
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• v.13 no.2
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• pp.341-348
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• 2022

The study was aimed to identify the educational needs for gerontological nursing using the nursing diagnosis classification of hospital nurses. A cross-sectional survey was conducted on 245 nurses who had experience caring for older patients within 1-year at two nurse web cafes. As a result of the study, 43 nursing diagnoses were classified into 6 areas: acute care, daily life care, education and counseling, environment and resource management, health promotion, and geriatric disease management. Nursing educational needs differed according to the age, sex, marital status, education level, size of the hospital, and working experience of the nurse. In order to effectively perform nursing care for the elderly and geriatric patients, it may be necessary to investigate the needs of continuous education and develop a detailed education program.

• The KIPS Transactions:PartB
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• v.9B no.5
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• pp.625-634
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• 2002

In this paper, we conducted various experiments with Bayesian networks in order to analyze clinical data of infertility patients. With these experiments, we tried to find out inter-dependencies among important factors playing the key role in clinical pregnancy, and to compare 3 different kinds of Bayesian network classifiers (including NBN, BAN, GBN) in terms of classification performance. As a result of experiments, we found the fact that the most important features playing the key role in clinical pregnancy (Clin) are indication (IND), stimulation, age of female partner (FA), number of ova (ICT), and use of Wallace (ETM), and then discovered inter-dependencies among these features. And we made sure that BAN and GBN, which are more general Bayesian network classifiers permitting inter-dependencies among features, show higher performance than NBN. By comparing Bayesian classifiers based on probabilistic representation and reasoning with other classifiers such as decision trees and k-nearest neighbor methods, we found that the former show higher performance than the latter due to inherent characteristics of clinical domain. finally, we suggested a feature reduction method in which all features except only some ones within Markov blanket of the class node are removed, and investigated by experiments whether such feature reduction can increase the performance of Bayesian classifiers.

• Therapeutic Science for Rehabilitation
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• v.6 no.2
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• pp.11-28
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• 2017

Objective: The purpose of this study was conducted to systematic review about assessment tools for Activities of Daily Living (ADL) for stroke patients. Methods: Studies tools was administered by using four electronic databases (Pubmed, Embase, Cochrane and NDSL). For the main key words,"stroke AND activities of daily living AND occupational therapy AND assessment OR evaluation OR measurement"was used. We analyzed the types and frequency of evaluation tools. In addition, the evaluation tools for activities and participation were classified based on the classification criteria of International Classification of Functioning, Disability and Health (ICF). Results: In this study, 111 studies were analyzed and 30 assessment tools were identified. As the number of studies on stroke patients has been increased recently, the types and frequency of evaluation tools have been also increased. The most commonly used evaluation tools were Functional Independence Measure (FIM), Barthel Index (BI) and Canadian Occupational Performance Measure (COPM). In addition, according to classification based on ICF, we found that the types of assessment tools which assess participation were few. Conclusion: Although there were many kinds of assessment tools, the types of evaluation tools which were used in the research or field were very limited. Using various assessment tools, more research should be conducted to support evidence-based occupational therapy. Evaluation tools for participation also should be developed.

• Radiation Oncology Journal
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• v.17 no.2
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• pp.108-112
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• 1999

Background and Purpose : Involvement of supraclavicular Iymph nodes (SCL) is considered distant metastasis for thoracic esophageal carcinoma in AJCC staging system revised in 1997. We investigated significance of SCL involvement compared to other regional Iymph node involvement. Materials and Methods : Two-hundred eighty-nine patients with unresectable esophageal carcinoma were treated with radiation therapy from June of 1979 through December 1992. Of these patients, 25 were identified having SCL involvement. Survival rate and relapse patterns were compared with that of mediastinal and perigastric Iymph node positive patients to evaluate prognostic significance of SCL involvement. Results : Median survival for patients with SCL involvement was 7 months and 2- and 5-year overall survival rates were 12.0$\%$ and 4.0$\%$ respectably. Corresponding features for regional node positive patients were 9 month, 17.0$\%$ and 3.8$\%$. There was no significant difference between two groups. There was also no difference in patterns of recurrence. Conclusions : Results of this analysis showed that SCL involvement should be staged as nodal disease in contrast to present classification of metastatic disease.