위암절제술시 대량출혈로 인한 급성신부전 증례

한영문 대한마취과학회 1988 Korean Journal of Anesthesiology Vol.21 No.6

Often anesthesiologistis are experienced to performe the inevitable blood transfusion during massive blood loss. Red blood cells are transfusd primarily to increase transport of oxygen to tissues. An increase in the circulating red cell mass produces an increase in oxygen uptake in the lungs and a corresponding probable increase in oxygen delivery to tissues. However, tissue hypoxia may develop from infusion of stored blood due to leftward shift in the oxygen dissociation curve espectially massive transfusion. And dilutional thrombocytopenia is probably the most likely cause of a hemorrhagic diathesis in a patient who has received multiple units of bank blood. The deposited fibrin may severely alter the microcirculation and lead to ischemic necrosis in various organs, particulary the kidney, especially derranged hemodynamic conditions are exist. A case ofacute renal failure due to massive blood loss during gastrectomy was reviewed.

염료감응형 태양전지의 탄소나노튜브 상대전극의 광투과도와 전기화학적 특성이 에너지 변환 효율에 미치는 영향

한영문,황숙현,강명훈,김영주,김현국,김상효,배효준,최현광,전민현,Han, Young-Moon,Hwang, Sook-Hyun,Kang, Myung-Hoon,Kim, Young-Joo,Kim, Hyun-Kook,Kim, Sang-Hyo,Bae, Hyo-Jun,Choi, Hyon-Kwang,Jeon, Min-Hyon 한국전기전자재료학회 2011 전기전자재료학회논문지 Vol.24 No.4

In this work, electrochemical characteristics and optical transmittance of carbon nanotubes (CNTs) counter electrodes which had different amount of CNTs in CNTs slurries were analyzed. Two-step heat treatment processes were applied to achieve well-fabricated CNTs electrode. Three sets of CNTs electrodes and dye-sensitized solar cells (DSSCs) with CNTs counter electrodes were prepared. As the amount of CNTs increased, sheet resistance of CNTs electrode decreased. CNTs electrode with low sheet resistance had low electrochemical impedance and fast redox reaction. On the other hand, in case of CNTs counter electrode with low density of CNTs, performance of the dye-sensitized solar cell was improved due to its high optical transmittance. We found that the transmittance of CNTs counter electrode influence the performance of dye-sensitized solar cells.

패혈성 담도염 수술후 발생한 지연성 무호흡

한영문 최신의학사 1993 最新醫學 Vol.36 No.1

Lidocaine 靜注에 의한 不整脈의 消失 : 症例 (1) Case Report (1)

韓永文,全世雄 최신의학사 1976 最新醫學 Vol.19 No.4

Anesthesiologists are often encountered an arrhythmia during general anesthesia. Sometimes, ventricular arrhythmia may threaten the patient condition to be fatal. On the contrary, anesthesiologists experience that an arrhythmia which existed pre-operatively may disappear during and/or after general anesthesia. The mechanism of disappearance of an arrhythmia during general anesthesia is not known clearly at this moment. In most of the cases, the pre-operative arrhythmia may reappear after general anesthesia. Incidence of an arrhythmia during general anesthesia was varied among the reported references. But no one reported disappearance of an arrhythmia during and/or after general anesthesia. In the previous authors report, the incidence of an arrhythmia was 25.8% and disappearance of an arrhythmia (existed pre-operative arrhythmia) was 64. 3% during general anesthesia, respectively. In this fact, disappearance of an arrhythmia may last forever or not is an interesting focus to anesthesiologists. Ventricular arrhythmia patient was underwent general anesthesia for cholecystectomy. In this patient, ventricular premature contraction was not disappeared by 100 mg of lidocaine intravenous injection preoperatively. Inhalation anesthesia with halothane-N2O-O2 was performed under endotracheal anesthesia. An arrhythmia was not abolished during general anesthesia. 1% lidocaine intravenous infusion was carried out through the recovery period. An arrhythmia was disappeared after 300mg of lidocaine intravenous infusion during 5 hours period. Antiarrhythmic effect of lidocaine was observed. An arrhythmia which ventricular premature contraction was disappeared after general anesthesia with 400 mg of lidocaine (total dose) intravenously.

Epinephrine 과용에 의한 중독증례 : 3례 보고 Report of Three Cases

한영문 최신의학사 1974 最新醫學 Vol.17 No.4

Accidentally or carelessly given epinephrine overdose is dangerous and cause even death. Subarachnoid hemorrhage and hemiplegia have been reported in man on many literatures following as little as 0.5 mg of epinephrine injection. And also, increased risk of arrhythmias was well recognized when epinephrine injection was used during inhalation anesthesia with halogenated hydrocarbons. In these cases presentations, about 1 mg and 2 mg of epinephrine were given carelessly. Toxic reactions of epinephrine were noticed and immediate treatment were started with intravenous rapid acting barbiturate together with halothane-oxygen anesthesia and hyperventilation. All three cases were uneventfully recovered.

당뇨병 환자의 마취증례

한영문 대한마취과학회 1987 Korean Journal of Anesthesiology Vol.20 No.6

Diabetes is associaed with increased atherosclerosis, microangiopathy, infections and decreasecd wound-healing tensile strength. The evidence that hyperglycemia itself accelerates these complications, or that tight control of blood sugar levels decrease the rapidity of the progression of microan-giopathic disease is very suggestive but not definitive. Perioperative management of the diabetic patient may affect surgical outcome. Here in is a case report and a review of the literature on diabetes mellitus.

가토에서 단일연축반응으로 본 Ketamine의 근육이완 효과

한영문 中央醫學社 1982 中央醫學 Vol.42 No.5

기관절개 Cannula 의 잘못꽃음중 발생한 심장정지

한영문 대한마취과학회 1977 Korean Journal of Anesthesiology Vol.10 No.2

A case of sudden cardien arrest due to misplaced tracheostomy cannuln ivas reviewed. The genera1 condition of the patient was febrile, dyspneic and acutely ill. Emergency tracheostomy was performed under ketamine-halothane endotracheal anesthesia. Sudden cardiac arrest was noticed when a metal cannula was inserted through the tracheostomy site by the surgeon after the tracheostomy. Immediate closed chest cardiac masage was perforrned successfully.

麻醉中 不整脈의 頻度

金世雄,韓永文 최신의학사 1973 最新醫學 Vol.16 No.2

Incidence of arrhythmias during anesthesia increases in their frequency, because of the average sur?gical patients tend to be older than in the past. And cardiovascular surgery was performed more frequently to-day. Prompt recognition, skillful treatment and prevention of the cardiac arrhythmias may determine the successful outcome of the anesthesia and surgery. Out of the total 1370 surgical cases, 256 cases were selected for evaluation of cardiac condition during surgery, because the latter were suspected to have some cardiac problems preoperatively. Of these 256 cases, ECG was checked preoperatively and the incidence of arrhythmias during anes?thesia were observed. The results were as follows; 1. Arrhythmias had been found preoperatively in 84 cases among the 256 cases studied (32.8%). The incidence of arrhythmia for the total 1370 surgical patients was 6.1%. 2. In the above 84 cases, 30 cases developed arrhythmia during anesthesia (35.7%). The remaining 172 cases which had showed normal cardiac rhythm preoperatively, developed arrhythmia in 36 cases (20.8%). Therefore, out of the 256 cases, 66 cases developed arrhythmia during anesthesia (25.8%). 3. Types of arrhythmias found during anesthesia were ventricular premature contraction (40.9%), sinus tachycardia (36.4%), atrial premature contraction (9.1%), sinus bradycardia (7.6%), right bundle branch block (1.5%), left bundle branch block(1.5%), atrial fibrillation(1.5%) and ventricular fibrillation (1.5%). 4. Incidence of arrhythmias concerning about sex was 53.0>% in the male and 47.0% in the female. 5. For the types of the surgery, high incidence of arrhythmia was found in the dental, E. N. T. , and urological surgery. (The majority number of the patients were the geriatric cases.) 6. Incidence of arrhythmias concerning about the anesthesia time were 59.1% within 3 hours of anesthesia and 40.9% over 3 hours of anesthesia. 7. The incidence of arrhythmias during the induction period was 45.5% and during the mrii tenance period was 28.8%. And incidence of arrhythmias through induction period to maintenance period was 25.7%.

흡입마취중 Intracuff Pressure 의 변화

전세웅,한영문 대한마취과학회 1978 Korean Journal of Anesthesiology Vol.11 No.4

The effect of nitrous oxide on endotracheal tube cuff pressure was measured during N2O-O2-halothane anesthesia. Intracuff pressure was increased in a time-related fashion up to 150 minutes. Thereafter no significant increase was observed, The other hand, there is no endotracheal tube cuff pressure change during O2-halothane anesthesia. These findings demonstrate that nitrous oxide has the capacity to diffuse into Portex endotracheal tube cuffs in significant volumes and may result in increased intracuff pressure, and in O2-halothane anesthesia, the nitrogea in the cuff wras diffused out from the cuffs.