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      • SCOPUSSCIEKCI등재

        Coating을 시행한 뇌동맥류 파열환자의 예후

        박종혁,석종식,목진호,박관,김영백,민병국,황성남,최덕영 대한신경외과학회 1995 Journal of Korean neurosurgical society Vol.24 No.6

        In rare occasions in which aneurysmal neck clipping is nearly impossible, coating is employed. During the period from 1985 to 1992, 312 patients with aneurysm underwent surgery ; aneurysmal neck clipping were performed in 284 cases while coating only in 28. The reasons that coating was required were ; wide and broad neck in 13, perforators arising from the neck in 4, neck tearing during dissection in 3, very friable neck in 2, severe adhesion with surrounding structures in 3, and small aneurysm without enough room for clipping in 3. In twenty-three cases, cotton wisp and bioglue were used as coating materials. In another five cases, the aneurysmal wall was reinforced using Surgicel or Gelfoam. Patients were followed for 24 months on average of all the patients. Four had last contact Six died(4 due to rebleeding and 2 due to pneumonia). Fourteen were good and 4 were moderately disabled. There were no rebleeding incidences during first three months' follow-up after coating. We thus concluded that coating an aneurysm offers some protection from rebleeding, particularly when the rebleeding risk period is over.

      • 만성 골수성 백혈병 환자에서 발생한 거대 후복막강내 혈종 1예

        박기령,김영선,박사영,최진혁,이순남,정화순 梨花女子大學校 醫科大學 醫科學硏究所 1996 EMJ (Ewha medical journal) Vol.19 No.1

        Thrombohemorrhagic complications in chronic myeloproliferative disease(CMPD) including chronic myelogenous leukemia(CML) are not rare. Lower incidence of disordered hemostasis is reported in CML compared with other CMPD. The mechanism of thrombohemorrhagic complications might be a consequence of qualitative platelet abnormalites and prolonged bleeding time rather than that of thrombocytosis. Although defect of platelet function has been extensively investigated, there was no established consistent correlation between clinical bleeding and number and function of platelet. The most common site of bleeding complications in the CMPD is superficial mucosa. Bleeding in deep tissue and viscera is very unusual. We report a case of CML which developed a huge spontaneous retroperitoneal hematoma.

      • 정신질환자 수용시설환자의 정신과적 입원치료 경험 유무에 따른 비교연구

        박민철,오상우,권혁일,박남진,김종주 圓光大學校 醫科學硏究所 1986 圓光醫科學 Vol.2 No.2

        We have visited the asylums in Chollapukdo for two months since March of 1985. We conducted a comparative study between the patients who has been previously hospitalized and who has not been hospitalized for psychiatric problems. We individually interviewed 489 patients using the interview schedule. The results are shown as follows: 1. The group who were young, single and highly educated have been more hospitalized than the groups who were old, married and little educated. However, no significant difference was made by sex and districts. 2. The group who lived alone or were deserted from the family has been rarely hospitalized. 3. The group, who has been entered the asylum by the family or who explained the reason as treatment, has been more hospitalized previously than the group entered by the others or who said that they came due to alcohol. 4. While the group who has been hospitalized showed tendency to accept having their psychiatric disorders, but the group who has not been hospitalized showed tendency to deny having their disorders. 5. The group who named their disorders psychoses or schizophrenia has been more hospitalized than the group who named them alcoholics. 6. The group hospitalized previously has been also treated in other ways besides psychiatric treatment, and chronic patients with the duration of more than three years has been relatively hospitalized previously. 7. While the group who has been previously hospitalized was relatively indicated for hospitalization, but the other group was not relatively indicated.

      • KCI등재

        수종의 상아질 접착제와 복합레진의 적합성에 관한 연구

        박진성,권혁춘 大韓齒科保存學會 1995 Restorative Dentistry & Endodontics Vol.20 No.1

        AbstractThe purpose of this work was to study the compatibility of several commercially available dentin adhesives with composite resins. In this study, V-shaped cavity preparations were created on both buccal and lingual surfaces of 60 extracted human premolars(3mmX3mmX 2mm deep). Preparations were located such that the occlusal margins were on the enamel and the gingival margins were on the cementum(lmm below the CEJ). These specimens were randomly divided into three equal groups. Three dentin adhesives(Scotchbond Multi- purpose, All Bond 2, Prisma Universal Bond 3) were applied to the cavity in accordance with each manufacturer's instructions. The teeth in each group were restored with four composite resins (Silux plus, Z100, Bisfil, Prisma TPH)in three increments, with each incre- ment light-cured for 40 seconds. All specimens were exposed to 500 cycles of thermal stress. Specimens then placed in a silver ni<rate solution(50% by weight) and stored in darkness for 24 hours. They were then immersed for 6 hours in photographic developing solution under flourescent light. Specimens were sectioned buccolingually through the center of the restoration and observed under a binocular stereoscope. To compare the marginal leakage, ANOVA and Dunkan's multiple range tests were used in analysis. Selected samples were further studied using scanning electron microscopy(XL20, Philips, The Netherlands).The results were as follows. 1. In all groups, the enamel margin showed significantly less leakage than the cementum margin. 2. No statistically significant differences were found in microleakage when composite resins were used with their proprietary dentin adhesives. 3. In comparison between dentin adhesives, Prisma Universal Bond 3 showed significantly less leakage at the enamel margin and Scotchbond multi-purpose showed significantly less leakage at the cementum margin than -the other groups. 4. In comparison between composite resins, Silux Plus showed significantly more leakage than other groups at the enamel margin and no statistically significant differences were found in microleakage at the cementum margin. 5. According to the backscattered scanning electron microscope, microleakage occurred via gaps at the dentin adhesives/dentin interface

      • 원광의대 부속 제 2병원 신경정신과 환자에 대한 통계적 고찰

        박민철,김종주,박남진,오상우,권혁일,권영숙,박종호 圓光大學校 醫科學硏究所 1986 圓光醫科學 Vol.2 No.2

        We examined 1,856 patients who visited Won Kwang Neuropsychiatric hospital since July 11 of 1984(since the hospital opened) until June 11 of 1986. We researched diagnostic and other distributions of inpatients and outpatients. The study revealed as follows : 1. Of total patients males visited this hospital more than females as 52.7%. Most of them(67.1 %) resided in Iri, Iksan and Kimje. In the point of insurance, insured patients and uninsured patients except medicaids were 73 %. Males(60%) were more insured medically than females (55.4%). While insured patients relatively resided in urban area, but uninsured patients except medicaids did in rural area. 2. Of outpatients neurotic disorder was the most as 35.1%, secondly schizophrenic disorder and thirdly affective disorder, but of inpatients schizophrenic disorder was the most as 41.4%, secondly neurotic disorder thirdly affective disorder. 3. Alcohol abuse (98.2 %), paranoid disorder, convulsive disorder and child mental disorder were mostly found in males, but neurotic disorder (59 .6 %), affective disorder and other psychotic disorder were mostly found in females. 4. In unmarried ones schizophrenic disorder ( 43 .6 %), neurotic disorder, other psychotic disorder were common, but in married ones neurotic disorder (55.1 %), schizophrenic disorder, affective disorder were common. 5. On the distribution of age schizophrenic disorder was found the most in the twenties (28.4 %), next in the thirties and in the forties, but neurotic disorder was found the most in the thirties, next in the twenties and in the forties. 6. On the distribution of age at onset schizophrenic disorder develops mostly during the twenties (45.5 %), secondly during the teens and thirdly during the thirties, but neurotic disorder develops mostly during the thirties and the twenties (53.1 %). 7. On the duration of hospitalization 34.4% of the patients was hospitalized during less than 15 days, 22.0% during 60-90 days and 80.4% during less than 3 months. 8. In the result of treatment 41.2% of the patients was improved and 31.7% a little improved. In total 72.9% of the patients got helped therapeutically.

      • KCI등재

        만성 변비 환자에서 바이오피드백 치료 효과에 영향을 미치는 인자 분석

        박도현,명승재,윤인자,권오련,고정은,장혜숙,김태훈,송혜경,양석균,이진혁,정훈용,홍원선,김진호,민영일 대한소화기학회 2003 대한소화기학회지 Vol.42 No.4

        목적: 바이오피드백 치료는 만성 변비 환자 중, 특히 골반저 기능의 장애가 있는 경우 치료 효과가 있어 널리 사용되고 있다. 그러나 치료 전 바이오피드백 치료의 효과 판정에 도움이 되는 임상적 인자에 대해서는 아직 정립된 의견이 없는 실정이다. 따라서 본 연구에서는 바이오피드백 치료를 시행받은 환자에서 치료 전 치료 반응을 예측할 수 있는 인자를 알아보고자 하였다. 대상 및 방법: 서울아산병원변비클리닉에 만성 변비로 2001년 6월부터 2002년 6월까지 내원하여 바이오피드백 치료를 받은 114명의 환자를 대상으로 하였다. 주관적 지표와 객관적 지표(일주일 동안 총배변 횟수)를 이용하여 치료에 반응이 있는 군과 없는 군으로 분류한 후 각 군의 특징 및 치료 효과에 영향을 미치는 인자들을 알아보기 위해 단변랑 및 다변량 분석을 시행하였다. 결과: 바이오피드백 치료에 효과를 보였던 환자는 85명(74.6%)이었다. 바이오피드백 치료에 효과를 보인 군과 그렇지 않은 군 간에 치료 전 풍선배출검사, 배변지수(1.4 vs. 0.73), 배변시 항문 잔여압(43.15 vs. 60mmHg), 직장항문 내압검사에서 역설적 수축이 관찰되는 경우 등이 두 군간의 결과에 영향을 미치는 인자로 나타났다. 다변량 분석에서는 배변지수가 높고 직장항문 생리검사에서 역행성 수축이 관찰되지 않는 경우가 반응군과 관련된 인자로 나타났다. 이 외에 성별, 나이, 이외의 다른 항문직장 검사 소견, 대장통과시간검사 등은 치료에 영향이 없었다. 결론: 만성변비 환자에서 바이오피드백 치료 효과 판정에 도움을 줄 수 있는 인자들을 활용할 경우 바이오피드백 치료가 필요한 환자들을 결정하는 데 도움을 줄 수 있을 것으로 생각된다. Background/Aims: Biofeedback therapy has been widely used for the treatment of constipated patients. However, there are only a few reports about the clinical factors can predict the effectiveness of biofeedback therapy. The aim of this study was to evaluate prognostic factors before the initiation of biofeedback treatment in constipated patients. Methods: Biofeedback treatment was performed in 114 patients with constipation. After classifying the patients into two groups, responder and non-responder by subjective and objective parameters, univariate and multivariate analysis were performed to evaluate the factors associated with effectiveness of biofeedback therapy. Results: Eighty-five patients (74.6%) responded to biofeedback therapy. Pre-treatment balloon expulsion test, paradoxical contraction on manometry, defecation index and anal residual pressure during straining were the factors that influenced the results of biofeedback treatment . On multivariate analysis, defecation index (odds ratio=67.5, p<0.05) and paradoxical contraction on manometry (odds ratio=0.053, p<0.05) were the factors that showed significant difference between the responders and non-responders. Conclusions: This study suggests that several pre-treatment prognostic factors are associated with response to biofeedback for the constipated patients. Using prognostic factors, we many be able to evaluate the patterns of pelvic floor dysfunction and responsiveness of biofeedback therapy for the patients with constipation.

      • 過共晶 Al-Si 合金의 振動鑄造에 關한 硏究

        朴龍鎭,權赫茂 弘益大學校 1977 弘大論叢 Vol.9 No.-

        The melt of hyper eutectic Al-Si alloy was poured into the metallic mold and it was solidified while vibrating by megnetic vibrating. The results obtained can be summarized as follows: 1. If the mold was vibrated, the primary silicon grain was refined to proportion with the strength of vibration 2. When the force of vibrating was change, the effect of refining of theprimary silicon was refined to proportional to streight line with-out modification of bath. 3. The condition of primary crystal was not mixed the eutectic and was grain-refined. 4. The tensile strength by vibrational casting was proportional on the forces of vibration in the ilmited vibrational range. 5. It was found that the change of elongation of the vibrationgal was inversely proportional to the tensile strength of the casting.

      • 위암과 식도암이 병발된 다발성 원발성 악성종양 1예

        박사영,이나영,이효진,이선영,최진혁,이순남,심강섭,성순희,한운섭 梨花女子大學校 醫科大學 醫科學硏究所 1996 EMJ (Ewha medical journal) Vol.19 No.3

        Multiple primary cancer means that more that two cancers occur independently in an individual. Recently, the incidence of multiple primary cancer has increased with lengthened survival, of cancer patients, development of new diagnostic technique and increased clinical evaluation. We report a patient who had adenocarcinoma of stomach combined with squamous cell carcinoma of esophagus simultaneously.

      • 국내 병원의 환경적합적 병원마케팅 연구

        박성환,손진혁 聖潔大學校 社會科學硏究所 1999 社會科學硏究 Vol.6 No.1

        ABSTRACT This Study has proposed marketing strategy of Korean hospital. 1. The general and common strategies needed by hospital in the field of management are to elevate the management efficiency by introducing the re-engineering to be adapted to the environmental change. 2. The medium and small hospitals shall be professionalized by the management strategy of professionalizing the functions based on the medical demand. 3. Marketing strategies are required to set up reliability and competitive power by satisfying the desire of the patients. 4. Successful hospital management need to construct patient-focused care system, improve hospital organization, and re-strategize patient-oriented hospital management.

      • 실험적 모드해석법을 이용한 시스템행렬 추정

        황재혁,박진호,이혜진 한국항공대학교 항공우주산업기술연구소 2002 航空宇宙産業技術硏究所 硏究誌 Vol.12 No.-

        본 논문에서는 시스템의 고유진동수, 모드감쇠비 및 모드모양을 구하는 방법에 대하여 알아보고 구해진 모달파라메타(고유진동수, 모드감쇠비, 모드모양)를 이용하여 시스템 행렬을 추정하는 방법에 대하여 논하였다. 이 방법을 5자유도 모델에 적용하여 시뮬레이션을 하였고 정확한 모델과 추정한 모델의 결과를 비교해보았다. 또한 실험을 통하여 알루미늄 Beam의 모달파라메타를 구했으며 구해진 모달파라메타를 이용하여 시스템 행렬을 추정했다. 추정된 시스템 행렬의 타당성을 판단하기 위하여 실험으로부터 구한 주파수 응답함수와 추정한 모델로부터 구한 주파수 응답함수를 비교하였다. 또한 실험으로부터 구한 주파수 응답함수를 Modal Analysis 소프트웨어인 ME' ScopeVES에 적용하여 모드모양을 구했고, 실험재료를 3차원으로 모델링하여 유한요소해석 소프트웨어인 ANSYS에 적용하여 모드모양을 구했고, 실험적인 모드모양과 해석적인 모드모양을 비교하였다. This paper presents the method of getting natural frequency, modal damping ratio, and mode shape of a system, and then describes the method of estimating the system matrices using the modal parameters(natural frequency, modal damping ratio, and mode shape) obtained. In order to prove the validity of this method, simulation study and experiment was performed. In the simulation study, 5 DOF exact model was assumed. Modal parameters can be obtained from frequency response function of the exact system matrices, and then the method of estimating the system matrices can be applied. Frequency response functions of the two model ( exact and estimatied ) were compared. In the experiment, aluminum beam was used. Modal Parameters can be obtained from using accelerometers, force transducer, FFT Analyzer (DI-2200) and ME' ScopeVES (Modal Analysis Software). Frequency response functions of the two model ( experimented and estimatied ) were compared.

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