최근 10년간 원광의대병원에서 시행한 소아 심장혈관 수술의 임상적 고찰

윤향석,정수미,최두영,오광수,오연균,김종덕,양현웅,이삼윤,김형곤,최종범,최순호,노병석 圓光大學校 醫科學硏究所 1995 圓光醫科學 Vol.11 No.2

We reviewed 10 years experiences of the clinical aspects and early postoperative results in 544 pediatric patients(age less than 16 years old). Among them. 529 cases had the congenital heart diseases, and 15 had the acquired diseases. Open heart surgery was performed in 413 patients. 115 cases were treated with non-open heart surgery. 16 with interventional catheterization. Annual increase of the cardiac patients was not significant in recent 10 years, except slight increase in 1994. The mean age of the study patients had been evidently changed to younger year by year. Total mortality rate of the open heart surgery was 6.4%. The cyanotic congenital heart diseases were high in early postoperative mortality by 25.7%, whereas 4% in acyanotic group. The age group less than one month was most highest in surgical mortality(66.7%). There were no deaths in patients with patent ductus arteriosus(103 cases), atrial septal defect(83 cases) or pulmonary stenosis(17 cases). Among 220 patients with ventricular septal defects(VSD). 10(4.5%) were died early postoperatively. In cyanotic group, the patients with pulmonary atresia with ventricular septal defects(PAVSD), transposition of the great arteries(TGA), interrupted aortic arch(IAA), complex cardiac anomalies with isomerism seemed to be most susceptible to an early death.

미성숙 영구치의 치근파절에 관한 증례보고

최병재,손흥규,김수연,최형준 大韓小兒齒科學會 1997 대한소아치과학회지 Vol.24 No.3

During the eruption of permanent teeth, Traumatic root fractures in young permanent incisors are rare. They occur most commonly in the maxillary central incisors of male patient and are frequently seen in the coronal third of the root. Permanent incisors are very important in terms of esthetics as well as of function, and so conservative treatment is advisable. It is important to maintain vitality of pulp to achieve better result. Location of the fracture line determines the Prognosis. No clinical change were seen in this three case. A case of central incisor with apparent healing of a root fracture without any tratment is presented in this paper. Long term clinical observation is required periodically.

해안 저질토중 중금속과 유기물질의 오염에 관한 연구

최형일,정경훈,김인수,송영일 조선대학교 환경연구소 1994 環境公害硏究 Vol.11 No.-

The contents of heavy metals and total organics in bottom mud of the Mokpo marine have been investigated. This area was divided into three regions; Daebul, Mokpo, and Sanjung, and sampling sites region were selected by eight sites. Marine bottom mud mere investigated three times during this study and twenty-four samples are taken from eight sampling sites. Analytical species were Cdmium, Copper, Lead, zinc, Arsenic and total organics. The Heavy metals were analyzed by atomic absorption spectrophotometry, also total organics were analyzed by gravimetry. The major resurts of the studies were as follows: 1. The contents of the heavy metals and total organics in marine bottom mud were Cadium 0.272 mg/kg, Copper 3.384 mg/kg, Lead 9.647 mg/kg, zinc 10.031 mg/kg, Arsenic 0.636 mg/kg, Total organics 5.99 wt%. 2. The Zinc was higher than any other heavy metals in the marine bottom mud. The mean contents of heavy metals in Sanjung region was the lowest. 3. Lead and Arsenic species were influenced by the pollutants influxed from Youngsan River, and Cadium and Copper were less than it's contents of the natural soils. 4. The total organics in the marine bottom mud was exceedingly increased as the contrasted with the small particle size of the marine bottom mud, and the corelation coefficients between heavy metals and total organics were high. (0.5<r<0.8)

충남대학교병원 마취발전의 경향에 관한 분석 : 1967년부터 - 1996년까지 from 1967 to 1996

최세진,김상수,정규돈,윤석화,신용섭,손수창,이원형,김혜자,이정은 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.2

To evaluate the specificity and historical trends of the anesthesia in Chungnam National University Hospital, anesthetic experiences of 83,572 in total performed at Chungnam National University Hospital from January 1967 to December 1996 were analyzed statistically and clinically according to age, sex, surgical department, physical status, elective and emergency surgery, premedicants, IV anesthetics, anesthetic methods, inhalational anesthetics, muscle relaxants. The results were as follows : 1. The number of cases has been steadily increased year by year. 2. The ratio of male to female was 52.8% : 47.2%. 3. According to the age, There were 44,905 cases (54%) in the group of 13-45 years. 4. According to the ASA classification of physical status, most of the cases were belonged to the class 1 & 2 (72.5%). 5. The ratio of elective to emergency was 79.4% to 20.6%. 6. Recently, glycopyrrolate has been used increasingly. 7. Thiopental sodium has been mainly used for intravenous induction agent. 8. General anesthesia has been used mainly. 9. Enflurane is the most common inhalational anesthetic agent. but Isoflurane has been used increasingly. 10. Most of muscle relaxants are Pancuronium & Vecuronium(84.5%).

위성 ATM망에 적합한 응용서비스 모형 개발

최명수,박남철,박형준,김경호,이성로 목포대학교 정보산업연구소 2000 情報産業硏究誌 Vol.8 No.-

The use of the Internet is much increased and the multimedia data such as voice and image should be processed in the Internet. The required characteristics of the communication networks for the 21-st century Internet are the fusion between communications and broadcasting, high speed, large capacity, high intelligence, and personalization. In realizing the characteristics mentioned above, the ATM is the only technique that can practically guarantee QoS and is the core technique in super high-speed service networks. In this paper, we will investigate the international study of the high-speed the satellite communication and then research plans for developing and providing optimum application services.

4세대 이동 멀티미디어 시스템의 연구동향 분석

최명수,박형준,박남철,김경호,이성로 목포대학교 정보산업연구소 2000 情報産業硏究誌 Vol.8 No.-

In this paper, we first define 4th-generation multimedia systems that play an important role in 21C information society. Nest, we investigate and analyze the international trend of the related research and then predict the evolutionary model for 155Mbps wireless mobile multimedia systems.

폐모세포종 : 1례보고 A Case Report

최영호,서홍주,임영혁,김정중,박성강,이석기,임진수,김은규 조선대학교 2001 The Medical Journal of Chosun University Vol.26 No.2

Pulmonary blastoma is a very rare primary neoplasm of the lung. We experienced a case of pulmonary blastoma in a 40 years old man. The mediobasal segmentectomy of the right lower lobe was performed. The patient was discharge on the postoperative days 6. There is no evidence of recurrence or metastasis on followup study during 7 months period after operation.

정보기술이 저항수준에 미치는 영향에 관한 연구

최수형 울산대학교 1999 경영학연구논문집 Vol.6 No.1

Responses from the information users on the information technology(IT) are very important to the success of IT, when new IT is introduced, resistance from the information users are likely to be happen. If appropriate management for IT is not carried out, resistance from the users of IT will be continued. It is necessary for the organizations to minimize user's resistance to the IT in order to reduce the introduction cost of IT and to enhance the degree of usage. To reduce the resistance of users the resistance factors should be analyzed first and then, they should be controlled later on. The purpose of this study is to find out the various factors which affect the employees' resistance to IT in the process of introducing IT, and identify differences in the resistance management according to the organizational level.

흰쥐 적출 대동맥에서의 알파-1 아드레날린성 수용체 탈감작 현상

최도희,한형수,박정숙,김중영 慶北大學校 醫科大學 1994 慶北醫大誌 Vol.35 No.4

목적 : 흰쥐의 적출 대동맥 절편에서 알파-1 아드레날린성 수용체의 탈감작에 따른 수축력 변화를 확인하고 수축력 변화와 관련된 요인들과의 관계를 검정하기 위해 실시되었다. 대상 및 방법 : Sprague-Dawley rat의 대동맥을 적출하여 알파-1 아드레날린성 수용체 선택적 효현제인 phenylephrine으로 탈감작시킨 뒤 수축력과 이완력의 변화를 확인하였다. 결과 : Phenylephrine에 의한 수축력은 phenylephrine 탈감작에 의해 감소되었다. EDRF와 관련이 있는 이완제인 acetylcholine과 histamine에 의한 이완반응은 phenylephrine 처치로서 변화를 볼 수 없었으나 sodium nitroprusside에 의한 이완은 항진되었다. 탈감작현상은 LNMMA와 methylene blue처치로 인해 영향을 받지 아니하였다. KCl에 의한 수축은 phenylephrine 탈감작으로 억제되었으나 phorbol ester에 의한 수축은 phenylephrine 탈감작으로 인해 영향을 받지 아니하였다. 결론 : phenylephrine에 의해 나타나는 알파-1 수용체 탈감작에 따른 수축력 감소 현상은 이완 작용의 변화와는 관련이 없으며 수축기전의 변화, 특히 calcium에 대한 반응성의 변화에 기인함을 시사하였다. We evaluated alpha 1 adrenergic receptor desensitization and decreased contractility in isolated rat aorta. 4 hour exposure to 10^-5M of phenylephrine (phenylephrine exposure) decreased phenylephrine(10^-10 to 10^-5M)-induced contractility. Phenylephrine exposure had no effect on the relaxation by NO releasing agents, such as acetylcholine(10^-9 to 10^-5M) and histamine(10^-8 to 10^-4M), but enhanced nitroprusside(10^-10 to 10^-6M)-induced relaxation. Phenylephrine-induced desensitization was not altered by the presence of methylene blue and N-monomethyl-L-arginine. After phenylephrine exposure KCl-induced contractility was decreased but phorbol ester-induced contractility was not changed. From these results we can assume that prolonged phenylephrine exposure alter calcium-dependent contraction mechanism and involve in alpha 1 adrenergic receptor desensitization-mediated decrease in contractility.

심부 매복 정중 과잉치 수술 시 마취방법 선택

민수영,송제선,이제호,최형준,손흥규,김성오 大韓小兒齒科學會 2012 대한소아치과학회지 Vol.39 No.1

Supernumerary tooth occurs most frequently at premaxilla area. Followed by mandibular premolar area, mandibular fourth molar area, maxillary paramolar area. Mesiodens are mainly impacted in the palatal area and surgical approach is made at palatal side. The time of surgery remains controversial. In case of inverted or horizontal impacted supernumerary tooth, intraosseous tooth movement and vertical growth of premaxilla makes surgical extraction more difficult. And also the more quantity of removed bone is, the higher degree of difficulty is. Inverted mesiodens of these cases were impacted superior to apex level of adjacent permanent incisor. Although CT examination revealed exact location of impacted tooth, surgical procedure including ostectomy may take a long time more than expected. So, before surgical extraction, it’s need to be considered several factors such as necessity of CT taking, degree of difficulty, direction of surgical approach, necessity of general anesthesia etc. 정중 과잉치(mesiodens)는 대개 상악 절치부에서 발견되며, 주로 구개측에 위치하는 경향이 있다. 정중 과잉치의 자연맹 출 가능성이 관찰되면, 주기적으로 검사하여 구강내로 충분히 맹출한 후에 단순발치를 시행한다. 주기적 검사에서 자연맹출 소견이 보이지 않거나, 형태이상 혹은 맹출방향의 이상으로 구강 내로 자연맹출 할 가능성이 없으면, 수술적 제거방법을 고려 해야 할 것이다. 특히, 인접한 중절치나 측절치의 맹출을 방해하고 있는 상황이 관찰된다면, 빠른 시일 내에 과잉치 제거를 위 한 수술적 방법을 시도하는 것이 타당하다. 한편, 외과적 수술의 시기를 늦추는 것을 고려해야 하는 경우도 있다. 정중과잉치가 인접하여 발육중인 정상 치아의 맹출을 방해하지 않는 경우이다. 이때, 삼차원 CT사진을 촬영하여보면, 과잉치 주변으로 영구절치의 치배가 근접하여 성곽처럼 둘러 싸고 있는 것을 볼 수 있다. 미성숙한 치배가 둘러 싸고 있는 상황에서, 무리하게 과잉치를 제거하려고 시도할 경우 인접 치배 를 손상시킬 가능성을 배제하기 어렵다. 이 점을 고려 한다면, 가급적 인접한 치아의 치근이 보다 발육한 후에 수술을 시도하 는 것이 바람직할 것이다. 초등학교 2학년 이상의 어린이들은 외래에서 국소마취하 제거하는 수술방법에 대개 잘 적응하며 고학년이 될수록 보다 수월해진다. 수술시기를 너무 늦추거나, 과잉치가 너무 늦게 발견된 경우 구개측 심부로 깊이 이동한 것을 볼 수 있다. 때로는 과잉치의 위치가 처음부터 심부에 매복되어 있을 수 있다. 이와 같은 경우, 전신마취방법을 생각해 볼 수 있을 것이다. 본 증례는 상악 정중부의 깊은 부위에 역위 매복된 과잉치를 외래에서 국소마취하에 치료를 시도할 때 관찰되는 문제점을 고찰하였고, 전신마취방법을 결정하기 위한 기준을 제시하였다. 심부 매복된 치아의 외과적 발거시 어린이의 행동조절이 가장 큰 문제였으며, 방사선 소견상 과잉치 치관의 위치가 절치의 치근단보다 상방에 위치할 경우 전신마취로 전환 하는 것이 바람직 할 것으로 사료된다.