Post-cleft Defofmity의 치험례

백세민,김수신,김동일,김우경,차진한 大韓成形外科學會 1988 Archives of Plastic Surgery Vol.15 No.4

There is increasing demand by cleft patients for improvement in their esthetic appearance and occlusion. Cleft lip and palate deformoty is a multifaceted problem. It is important to consider the underlying skeleton of the face as well as the covering soft tissue. With proper presurgical planing such as photographic, cephalmetric and dental cast analysis, the two jaw osteotomy and other procedures were performed simultaneously in 6 post-cleft deformity cases. We improved their facial appearance and occlusion. Their acceptance and satisfaction are exceptionally high.

알코올이 Dynamic Posturography에 미치는 영향

이진춘,고의경,장민호,이병주,백무진,노환중,왕수건,전경명 대한이비인후과학회 1999 대한이비인후과학회지 두경부외과학 Vol.42 No.2

신증후출혈열 환자의 역학조사를 위한 혈청학적 분석 및 항원검출

백락주,송기준,김상현,윤재경,김세연,송진원,이용주 대한감염학회 1997 감염 Vol.29 No.5

목 적 : 1991년 한탄바이러스 예방백신접종이 본격적으로 시행된 이후의 신증후출혈열 발생양상 및 한탄바이러스와 서울바이러스에 의한 감염비율에 대한 전반적인 역학조사와 새로운 한탄바이러스종의 존재 가능성을 증명하기 위하여 혈청학적 검사와 환자혈청에서의 한탄바이러스 항원검출을 시도하였다. 방 법 : 1994년 1월부터 1996년 12월까지 3년간 발생한 열성질환 환자중 신증후출혈열, 리케치아증 및 렙토스피라증 등이 의심되어 항체검사를 위해 고려대학교 의과대학 미생물학교실, 바이러스병 연구소에 의뢰된 혈청 8102건을 대상으로, 간접형광항체법, 혈구응집저지반응, 면역효소측정법 및 역전사 중합효소연쇄반응을 이용하여 한탄바이러스 감염에 대한 혈청역학적 연구 및 항원검색을 수행하였다. 결 과 : 간접형광항체법으로 조사한 한탄바이러스에 대한 항체 양성율은 30대 남자에서 가장 높았으며 10월에서 1월사이에 항체 양성 건수가 집중되어 있었다. 신증후출혈열 발생 빈도가 감소하고 있었으며 특히 건조기에 집중되었던 발생양상의 변화가 관찰되었다. 한탄바이러스에 의한 감염이 서울바이러스에 의한 감염보다 3배이상 높게 관찰되었으며 서울바이러스에 의한 감염은 고령층에서 더욱 빈발하였다. 한탄 및 서울 바이러스 이외의 새로운 한탄바이러스에 의한 감염 가능성이 확인되었다. 결 론 : 전반적으로 발생빈도가 감소하였으나 현재에도 우리 나라에서는 매년 수백명의 신증후출혈열 환자가 발생하며 한탄바이러스와 서울바이러스가 주요 원인체이나 새로운 한탄바이러스종의 존재 가능성이 확실하여 이의 규명을 위한 지속적인 연구가 수행되어야 할 것으로 사료된다. Background : Hantaan (HTN) and Seoul (SEO) viruses, harbored by the stripedfield mouse(Apodemus agrarius) and the Norway or common rat(Rattus rattus & Rattus norvegicus) respectively, were known to cause hemorrhagis fever with renal syndrome(HFRS) in Korea. We evaluated the seroepidemiologic patterns of hantaviral infection and detect the hantaviral antigens from patients sera. Methods : total 8,102 HFRS patients' sera were collected from 1994 to 1996, and examined by indirect immunofluorescent antibody technique(IFA), hemagglutination inhibition test(HI), IgM emzyme-linked immunosorbent assay(IgM-ELISA) and nested reverse transcription-polymerase chain reaction(RT-PCR). Results : The seropositive rate against hantaviral antigen was 12.0%(973/8102) with the high incidence rate(68.3%) in the period from October to January, and males in the thirties were mostly affected. HTN viral infections were detected 3.5 and 5.2 times higher than SEO viral infections by HI and RT-PCR, respectively, and patients in the fifties were the mostly affected age-group in SEO viral infections. IgM antibodies were detected in the 717 sera of the 905 IFA positive cases(79.2%), and the antigen detection rate of HTN and SEO viruses was 7.7%(56/724). Interestingly, 40 sera(4.4%), showed higher antibody titers against the puumala(PUU) virus than those against HTN or SEP viruses. Conclusion: The results showed HTN and SEO viruses were the main causative agents of HFRS in Korea, and also suggested the possible presence of PUU-related hantaviral infections.

멀티노드(공장자동화) 운영을 위한 네트워크에 관한 연구

백우진,박경섭 울산대학교 1998 공학연구논문집 Vol.29 No.2

본 연구에서는 멀티노드 시스템의 자동화를 위한 네트워크를 구성하고, 지능형 범용 제어기를 개발하였다. 통신 프로토콜이 우수하고 경제성이 뛰어난 Echelon사의 LON(Local Operating Network) 기술을 이용해 네트워크를 구축하였으며, 개발한 제어기에서는 범용성과 기능의 확장을 위해 Intel사의 16Bit One Chip Microprocessor인 80C196KC를 이용하였다. LON 시스템과 프로세서와의 통신을 위해 Token Passing 프로토콜을 이용한 Firmware를 개발했으며 각 노드를 운용하기 위한 80C196KC용 운용 프로그램을 개발했다. 개발한 지능형 범용제어기의 실험을 위해 온도 및 레벨 제어가 가능한 소형 네트워크 시스템을 구축하고 시뮬레이션 하였다. 또한 시스템 상황을 제어하고 감시하기 위해 Windows 환경의 모니터링 시스템을 구축하였다. In this paaper, we proposed a network for multi-node system automation, and developed intelligent universal controller. For this work, we used LON technique having powerful protocol and cost effective, and developed an intelligent universal controller with Intel One chip microprocessor 80C196KC to increase versatility and to guarantee reliability. We developed firmware using token passing protocol for communication between LON system and intelligent controller, and built 80C196KC program to control each node. To evaluate the intelligent controller, we applied it to a small network system which is able to control the level and the temperature. To control the system and to monitor its condition, we set up a monitoring system which is operated under Windows environment.

인체에서 carvedilol의 심혈관계 작용에 대한 PK/PD modeling

백인환,윤민혁,윤휘열,남진경,권광일 충남대학교 약학대학 의약품개발연구소 2007 藥學論文集 Vol.22 No.-

The objective of the present study was to determine and characterize the relationship between the cardiovascular effect and plasma concentration of carvedilol by PK/PD modeling in human. A group of 32 healthy males received oral doses of 25 mg carvedilol, and blood samples were collected thirteen times for up to 30 hours after the drug administration. The effect of carvedilol on blood pressure was measured during the same period. This experiment was analyzed using the liquid-liquid extractions of carvedilol by HPLC with fluorescence detection. Pharmacokinetics parameters of carvedilol were calculated using the two-compartment model with first-order absorption. The average value of C_(max), T_(max), CL/F (apparent clearance), V/F (apparent volume of distribution) and half-life of carvedilol were 62.74 ± 20.12 ng/ml, 1.26 ± 0.86 hrs, 94.64 ± 46.01 L/hr, 1561.78 ± 941.94 L, 12.47 hr, respectively. To explain the relationship between the cardiovascular effect and plasma concentration of carvedilol, plasma drug concentrations were linked to the observed SBP and DBP via a effect compartment with a sigmoid Emax model. The model parameters were estimated by using ADAPT Ⅱ program. This PK/PD model could describe the relationship between plasma concentrations of carvedilol and cardiovascular effect such as the aspects of decreasing blood pressure and the time delay between plasma concentration and pharmaco-dynamic data.

양수 다발성 수지 재접합수의 치험례 : 4 cases report

차진한,박명철,김우경,한근태,김수신,백세민 大韓成形外科學會 1990 Archives of Plastic Surgery Vol.17 No.2

Since the first successful replantation operation, several reports have been recorded replantated finger survival with high success rates. But ten and nine digits amputations are not common. It is even more unusual to have all digits suitable for replantation. 4 cases are presented where replantation of ten and nine digits were done at the department of PRS. Guro Hospital, Korea University from March 1987 to Jun 1988. In these cases, the patients were young and healthy, all of ten and nine digits were sharply amputed near the proximal phalanx, so a replantation team of 8 surgeons in alternating fashion replanted all ten and nine digits over 30 hours and each patient received 28 pints of whole blood during the procedure. Under general anesthesia, replantatin of both started simultaneously. All digits survived completely except partial necosis of right little finger in case 1. The ischemic time of each digit ranged from 4 hours and 45 minutes to 31 hours as shown in table 5. The long ischemic time did not criticaly affected the survival of amputated digit. Follow-up was from 12 months to 20 months postoperatively. The functional evaluation revealed as follows: 1. The grasping power ranged 13 lb to 65 lb(average;39.7lb) 2. The pinching power with index finger ranged 5 lb to 15 lb(average:10.2 lb) 3. The palm to pulp distance ranged 0 cm to 6 cm.(average;2.2cm) 4. The two point discrimination ranged 2.5mm to 22mm.(average;7.8mm) 5. The shape of digits were acceptable aesthetically. 6. All 4 patients were able to use both hands well in all activities of daily living.

급성 충수염으로 진단된 예측 불가 염증성 맹장 종물에 대한 외과적 고찰

민경진,백무준,채만규,김성용,이문수,김창호,김재준,송옥평 순천향의학연구소 2001 Journal of Soonchunhyang Medical Science Vol.7 No.1

Purpose: An unexpected inflammatory cecal mass of uncertain etiology was encountered during surgery for presumed appendicitis. In this case, the surgeon couldn't exclude differential diagnosis which were severe appendicitis involving the cecal region, diverticular disease, other inflammatory bowel diseases, and neoplasm. Therefore, this finding leads to a therapeutic dilemma for the surgeon, when making surgical decisions during the operation. The aim of this study was to resolve this dilemma, a retrospective review was undertaken in this study. Methods: A retrospective study was performed to review the management of this problem at Soonchunhyang University Chunan Hospital for eight and half years from July 1991 to December 1999. A review of the emergency operation records identified 50 patients who had undergone ileocecal resection or right hemicolectomy for an inflammatory ileocecal mass of uncertain etiology when operated on for probable appendicitis. Results: Altogether, 39 patients underwent ileocecal resection, and 11 patients underwent right hemicolectomy. The final pathologic diagnosis was appendiceal abscess in 32 patients (63%), cecal diverticulitis in 7 patients (14%), neoplasm in 6 patients (12%), appendiceal phlegmon in 3 patients (6%), ileal tuberculosis in 1 patient (2%) and Anisakiasis in another patient (2%). The neoplasm of the 6 neoplasm patients was ascending colon cancer for 4 patients and cecal cancer for 2 patients. There was no mortality in this group. Conclusion: Although most inflammatory cecal masses are caused by benign disease, all cases in which the intraoperative diagnosis is unclear, any pathologic diagnosis including neoplasm cannot be ruled out. So this suggest ileocecal resection or right hemicolectomy to remove a possible underlying malignancy, and to decrease morbidity and mortality.

공황장애 환자의 성격요인과 방어기제의 특성에 관한 연구

심진현,백상빈,신영철,오강섭,노경선,이시형 大韓神經精神醫學會 1999 신경정신의학 Vol.38 No.6

연구목적: 본 연구는 공황장애 환자들을 대상으로 성격요인과 방어기제 검사를 실시하였으며 우울 및 사회기능 정도를 측정하여 상관관계를 알아보았다. 방 법: 1997년 9월부터 1998년 8월까지 환자들중 공황장애로 진단된 35명을 대상으로 성격요인검사(Sixteen Personality Questionnaire 한국판) 및 방어기제검사(이화방어기제검사)를 시행하여 스텐점수(1-10)화 하였고, 우울증척도(Beck Depressive Inventory 한국판) 및 사회기능장애척도(Sheehan Disability 한국판)를 시행하였다. 결 과: 1) 개별항목 (1) 성격요인과 방어기제의 척도별 평균점수에서 정상보다 높거나(8점이상) 낮은(3점이하) 척도는 없었다. (2) 성격요인중 불안감이 높았고 자아강도, 신중성, 사변성은 낮은 점수를 보였다. (3) 방어기제중 신체화, 행동화의 점수가 높았고 유우머, 억제, 이타주의, 회피, 합리화는 낮은 점수를 보였다. (4) BDI의 평균점수는 18.25±9.97이었다. (5) SDS의 평균점수는 업무항목 4.88±3.11. 사회활동/오락활동항목 4.57±2.92였다. 2) 상관관계 (1) 성별간 비교에서 성격요인은 사변성, 죄책감을 방어기제는 허세, 부정, 수동공격, 투사를 남성 이 높게 보였다(p<0.05). (2) 연령증가는 성격요인중 낮은지능과 방어기제는 예견, 해리와 상관을 허세와 역상관을 보였다(p<0.05). (3) BDI 점수는 성격요인중 지능도, 자아강도, 도덕성, 죄책감, 통제력, 불안감등과 방어기 제중 해리, 신체화등과 유의미한 상관관계를 나타냈다(p<0.05). (4) 사회기능장애척도의 업무항목은 성격요인중 죄책감, 진보성, 불안감, 도덕성과 방어기제의 신 체화, 투사등과 유의미한 상관이 있었고, 사회/오락활동항목은 성격요인의 죄책감, 불안감과 방어기제중 허세, 투사 등과 유의미한 상관관계가 있는 것으로 나타났다(p<0.05). 3) BDI와 사회기능장애척도의 업무항목간에는 유의미한 상관관계가 있는 것으로 나타났다(p<0.05). 결 론: 공황장애 환자는 성격요인검사상 불안감이 높고 자아강도, 신중성, 사변성은 낮게 나타 났으며, 신체화 등의 신경증적 방어기제를 주로 사용하는 반면 유우머, 억제, 이타주의, 회피, 합리화의 방어기제는 적게 사용하는 것으로 나타났다. 증상의 강도와 관련이 있는 우울증상은 업무활동에 영향을 미쳐 이와 관련된 중등도의 사회기능의 장애를 초래하고 있는 것으로 보인다. Objectives : The purpose of this study was to evaluate the characteristics of personality factor and defense mechanism and relationship with depression and disability. Methods : Study subjects consisted of 35 panic disorder patients diagnosed with the criteria of DSM-Ⅳ. Data were collected through Sixteen Personality Factor Questionnaire, Ehwa Diagnostic Test of Defense Mechanism, Beck Depression Inventory and Sheehan Disability Scale. Statistics employed for the analyses were Pearson correlation and independent sample t-test. Results : In personality factors and defense mechanisms, there were no definitely abnormal range of scores. But, among personality factors, tension/anxiety factor scored high and unstableness/stableness, shyness/boldness and praxernia/atunia were in low range of score. In defense mechanism, somatization and acting-out scored high and humor, suppression, altruism, avoidance and rationalization scored low. The mean BDI score was 18.25±9.97. The mean score of SDS were 4.88±3.11 in work category and 4.57±2.92 in social/leasure category. Male patients were significantly correlated with guit-proneness and atuia in personality factor and passive-aggressiveness, projection, denial and show-off in defense mechanism, compared with female patients(p<0.05). The patients` age was correlated with low intelligence in persolity factor and dissociation and anticipation in defense mechanism. It was negatively correlated with show-off(p<0.05). The BDI score was correlated with low intelligence, superego, unstableness, self-conflict, high superego and atunia in personality factor and dissociation and somatization in defense mechanism(p<0.05). There was a significant relationship between BDI score and SDS work category(p<0.05). Conclusions: Panic disorder patients show high score of tension/anxiety factor and they frequently use neurotic defense style like somatization. The depressive symptom, which depends on symptom severity, appears to have influence on work category and to cause social disability.

한국인 직무 스트레스 측정도구의 개발 및 표준화

장세진,고상백,강동묵,김성아,강명근,이철갑,정진주,조정진,손미아,채창호,김정원,김정일,김형수,노상철,박재범,우종민,김수영,김정연,하미나,박정선,이경용,김형렬,공정옥,김인아,김정수,박준호,현숙정,손동국 大韓産業醫學會 2005 대한직업환경의학회지 Vol.17 No.4

Background and Purposes: Over the past three decades, numerous studies performed in Korea have reported that job stress is a determinant risk factor for chronic diseases and work disability. Every society has its own culture and occupational climate particular to their organizations, and hence experiences different occupational stress. An occupational stress measurement tool therefore needs to be developed to estimate it objectively. The purpose of this study is to develop and standardize the Korean Occupational Stress Scale (KOSS) which is considered to be unique and specific occupational stressors in Korean employees. Subjects and Methods: Data were obtained from the National Study for Development and Standardization of Occupational Stress (NSDSOS Project: 2002-2004). A total of 12,631 employees from a nationwide sample proportional to the Korean Standard Industrial Classification and the Korean Standard Occupational Classification were administered. The KOSS was developed for 2 years (2002-2004). In the first year, we collected 255 items from the most popular job stress measurement tools such as JCQ, ERI, NIOSH and OSI, and 44 items derived from the a qualitative study (depth interview). Forty-three items of KOSS, in the second year, were retained for use in the final version of the KOSS by using Delphi and factor analysis. Items were scored using conventional 1-2-3-4 Likert scores for the response categories. Results: We developed eight subscales by using factor analysis and validation process: physical environment (3 items), job demand (8 items), insufficient job control (5 items), interpersonal conflict (4 items), job insecurity (6 items), organizational system (7 items), lack of reward (6 items), and occupational climate (4 items). Together they explained 50.0% of total variance. Internal consistency alpha scores were ranged from 0.51 to 0.82. Twenty-four items of the short form of the KOSS (KOSS-SF) were also developed to estimate job stress in the work setting. Because the levels of the subscales of occupational stress were gender dependent, gender-specific standard norms for both the 43-item full version and the 24-item short form using a quartile for the subscales of KOSS were presented. Conclusion: The results of this study suggest that KOSS might be an appropriate measurement scale to estimate occupational stress of Korean employees. Further and more detailed study needs to be conducted to improve the validity of this scale.

8.3% Carbamide Peroxide 함유 펜 형 자가미백제인 BIancTis Forte의 색조개선 및 안전성에 관한 임상연구

이진경,민선홍,홍성태,오소람,정신혜,황영혜,유성엽,배광식,백승호,이우철,손원준,금기연 대한치과보존학회 2009 Restorative Dentistry & Endodontics Vol.34 No.2

This clinical study evaluated the whitening effect and safety of polymer based-pen type BlancTis Forte(NIBEC) containing 8.3% carbamide peroxide. Twenty volunteers used the BlancTis Forte whitening agent for 2 hours twice a day for 4 weeks As a control. Whitening Effect Pen (LG) containing 3% hydrogen peroxide was used by 20 volunteers using the same protocol. The change in shade (ΔE^(*) color difference) was measured using Shadepilot™ (DeguDent) before, during and after bleaching (2 weeks, 4 weeks and postbleaching 4 weeks). A clinical examination for any side effects (tooth hypersensitivity or soft tissue complications) was also performed at each check-up. The following results were obtained. 1 Both the experimental and control groups displayed a noticeable change in shade (ΔE) of over 2 No significant differences were found between the two group (p>0.05) implying that the two agents have a similar whitening effect. 2 The whitening effect was mainly due to changes in a and b values rather than in L value (brightness). The experimental group showed a significantly higher change in b value thus yellow shade than the control(p < 0.05) 3 None of the participants complained of tooth hypersensitivity or soft tissue complications confirming the safety of both whitening agents 8.3%의 carbamide peroxide를 함유한 펜형 코팅용 미백제인 BlancTis Forte (NIBEC, Seosul & JinCheon)를 실험군으로, 3% hydrogen peroxide를 함유한글 Whitening Effect Pen (LG. Seoul) 제재를 대조군으로 각각 피험자 20명에게 2시간씩 1일 2회 제조사의 지시대로 치아표면에 4주간 적용하도록 지시하고 색조개선 효능과 안전성을 평가하였다. 미백 효과는 미백 전 및 미백 2주, 4주 및 미백 종료 4주 후에 Shadopilot™을 이용하여 색 변화를 측정하였고, 매 내원시기마다 모든 환자는 치수생활력 검사와 치주 및 치태 검사를 통해 부작용 여부 (치아과민증 및 구감 내 연조직의 부작용)를 기록한 후 다음과 같은 결과를 얻었다. 1.실험군 및 대조군의 색 변화량 (ΔE)은 2이상으로 인지할 수 있는 색 변화를 보였으며, 두 제품 간에는 통계적으로 유의한 차이를 보이지 않아 (p > 0.05) 유사한 미백효능을 나타냄을 알 수 있었다. 2,미백효과는 명도의 개선보다는 주로 a. b값의 변화에 의한 것으로 특히 실험군에서 b값의 변화, 즉 황색조의 개선효과가 대조군에 비해 유의성 있게 높은 것으로 나타났다 (p <0.05). 3.치아나 치은의 과민증이나 이상증상을 호소하는 피험자는 없어 두 제품 모두 안전성을 확인할 수 있었다.