葡萄晩腐病防除를 위한 各種殺菌劑의 比較

오중환 안성산업대학교 1971 論文集 Vol.3 No.-

1. 各 殺蟲劑들이 葡萄晩腐病防除에 미치는 效果는 Tuzet, Difolatan>Bordeux,Daconil의 順으로 效果가 좋았다. 2. 現在 장려하고 있는 Daconil 30gr/18ℓ에 희석 살포하는 것은 만부병 방제효과를 나타내기에는 약한 것 같다. 3. Tuzet 과 Difolatan은 枝稍와 果實에 심한 약해가 유발되었다. 4. Dithane 과 Daconil 은 안심하고 사용할 수 있었다. To find out the most effective ones among the several fungicides being applicable to ripe rot in Grape growing, several fugicides were com compared each other and following results were obtained 1. The order of effectiveness was Tuzet ≒ Difolation > Bordeux ≒ Daconil. 2. It seems that the current recommended 30 gr of Daconil per 18ℓ or water is too weak to be effective to the ripe rot. 3. Tuzet and Difolation have induced the chemical damaged on branches, shoots and fruits of grapes.

심외막 지방의 정량분석

오중환,강청희,이종국,O, Jung-Hwan,Gang, Cheong-Hui,Lee, Jong-Guk 대한흉부심장혈관외과학회 1995 Journal of Chest Surgery (J Chest Surg) Vol.28 No.3

Subepicardial space is one of the regions in which fat in moderate amount is normally deposited. When excess deposits of epicardial fat occur, penetration or infiltration of fat into the connective tissues between muscle bundles is observed. In some cases with very extensive involvement of epicardial fat,myocardial insufficiency and conduction system defect such as heart block have been implicated. More fat is deposited over the right ventricle than over left and the anterior surface contains more fat than dose the posterior surface. We studied 40 patients who underwent open heart surgery under the cardiopulmonary bypass. This study was designed to evaluate the percentage of the area of epicardial fat of the right ventricular anterior surface, which is more accessible area during the operative procedure. Other variables included thickness of subcutanous tissue of anterior chest wall, the ratio of waist to hip circumference, body weight and age. In conclusion, the amount of the epicardial fat correlates with thickness of the subcutaneous fat of the anterior chest wall and simple linear regression analysis indicates good correlation with body weight. Increased age results in large amount of epicardial fat.

부종환자에서 임피던스를 이용한 수분변화의 예측

오중환 대한흉부심장혈관외과학회 1995 Journal of Chest Surgery (J Chest Surg) Vol.28 No.11

The assessment method of human body composion by bioelectrical impedance is very simple, safe, rapid and noninvasive. Based on prediction formulas for total body water from bioelectrical impedance, the observed weight loss should be associated with an increase in impedance. However in edematous patients for dialysis, the calculated total body water loss as calculated from impedance were overestimated and significantly higher than the weight loss after dialysis. So determination of impedance were made in 50 edematous patients before, during and after dialysis. Mean weight loss, which was assumed to be only loss of water was 1719$\pm$ 866 gr and mean impedance change was 71.0 $\pm$ 23.0 Ohm under 50kHz. Body weight loss was highly correlated [r>0.81 with the increase in body impedance under variable frequencies[1, 10, 20, 30, 40, 50 kHz . But there were no differences between frequences. In conclusion, clinical application of bioelectrical impedance method is useful for individual edematous patients with new correlation equation[Y=230+26.8X, X;Impedance change, Y;Calculated total body water loss .

신장근접 대동맥 폐색증의 상복강대동맥 우회술

오중환 대한흉부심장혈관외과학회 1992 Journal of Chest Surgery (J Chest Surg) Vol.25 No.1

Total atherosclerotic obstruction of the juxtarenal abdominal aorta is a relatively rarely encountered form of atherosclerotic vascsular disease, accounting for less than 5% of all arterial obstrutive disease. We have encountered two patients with such lesions, both of whom were admitted for intermittent claudication of the lower extremities and symptoms of vascular ischemia. Digital subtraction angiography[DSA] was performed on both patients, the results of which revealed total obstruction of the aorta just inferior to the renal arteries without involving the latter. Operative technique involved the use of the sup-raceliac aorta as the site of proximal anastomosis of aortofemoral bypass followed by a fem-orofemoral bypass graft with Smm sized Woven Dacron[Vascutek] through a subcutaneous tunnel within the retroperitoneal space. Both patients experienced restoration of blood flow distal to the obstruction postoperatively without any complications, and OPD follow-up one month postoperatively and postoperative DSA showed evidence of continued graft patency with persistent symptomatic improvement.

경식도 초음파로 진단된 외상성 대동맥 파열[1예 보고]

오중환 대한흉부심장혈관외과학회 1992 Journal of Chest Surgery (J Chest Surg) Vol.25 No.3

Truamatic aortic rupture is usually fatal if left untreated. Prompt diagnosis is the cornerstone of suscessful management. But the usual screening tests are non specific and the accuracy of computerized tomography is low, Aortography which is a time consuming procedure may result in false-positive interpretations and significant morbidity. Recently transesophageal echocardiography provides a rapid, effective and relatively safe means of evaluating the distal aortic arch and also affords the opportunity to evaluate the heart during the same study, which may be of benefit in cases of suspected cardiac injury. The experience with the traumatic aortic ruptured patient and a critical review of the literature suggests that transesophageal echocardiography is a useful technique for the diagnosis of ruptured aorta following blunt chest trauma.

개심술후 출혈로 인한 응급 개흉술 81례의 임상적 고찰

오중환 대한흉부심장혈관외과학회 1985 Journal of Chest Surgery (J Chest Surg) Vol.18 No.4

Hemorrhage is an important complication after operation with cardiopulmonary bypass and sometimes necessitates a further emergency operation. Between July, 1962 and June, 1985, reoperation for hemorrhage was carried out on 81 patients [3.1%] out of a total 2634 patients who had previously undergone cardiopulmonary bypass surgery at the Department of Thoracic and Cardiovascular Surgery, Yonsei University Medical Center. There were 38 males and 43 females, with an average age of 25 years [ranging 6 months to 60 years] and an average body weight of 38 kg [ranging 5 to 77 kg].There were 43 patients of cyanotic heart disease, 32 patients of acquired valvular heart disease, 4 patients of coronary artery occlusive disease, 2 patients of ascending aorta aneurysm and annuloaortic ectasia. The average amount of blood loss in the case of cyanotic heart disease was 71.7140ml/kg, in acyanotic heart disease 45.16.3ml/kg, in acquired heart disease, 56.514.4ml/kg and in coronary artery occlusive disease, 50.618.7ml/kg during first post operative day. But there was no statistical difference [p>0.05]. The mean blood loss below 10 years old was 70.412.1 ml/kg. Those below 10 years old were believed to bleed more than any other group. But there was also no statistical difference [p>0.05]. Indications for reoperation were continued excessive blood loss [74%], cardiac tamponade or hypotension [23%] and radiological evidence of a large hematoma in the thorax and pericardium [2%]. Average bypass time was 2.10.1 hours [ranging 30 minutes to 5 hours]. The interval between operation and reoperation was as follows; less than 12 hours in 49 patients [60%], 12 to 24 hours in 20 patients [25%], 24 to 48 hours in 8 patients [10%], more than 48 hours in 4 patients [5%]. The commonest sites for bleeding were chest wall [36%], heart [34%], aorta [12%], pericardium [6%], thymus [5%] and others [6%]. But no definite source was found in ll patients [31%]. Twenty seven out of 81 patients [31%] had wound problems and 5 patients [6%] were expired. [Mean SEM]. In conclusion, in order to decrease the amount of blood loss after open heart surgery with cardiopulmonary bypass, shortening of bypass time and bleeding control at the wire suture site during chest wall closure were important. If the amount of blood loss was over 45 ml/kg or 8 m/kg/hour, reoperation should be considered as soon as possible. After operating, careful wound dressings were applied to prevent wound problems.

한국인 성인심장의 좌관상동맥 근위부에 대한 형태학적 연구

오중환 대한흉부심장혈관외과학회 1985 Journal of Chest Surgery (J Chest Surg) Vol.18 No.2

It is well known that the morphologic feature of coronary artery is variant as finger print. Left coronary artery is divided into the left anterior descending artery and circumflex artery and supplies almost left atrium, left ventricle and interventricular septum. Clinically, the morphologic features of number of branches and the length of the left main coronary artery are important. In Korea, there are few reports about morphologic study of the coronary artery, and the coronary angiogram and open heart surgery are common. Now the author studied the morphology of the proximal part of the left coronary artery in Korean 50 Adult cadavers and obtained the following results: 1. The length of the left main coronary artery is from 5 mm to 16 mm [mean 9.7 mm]. 2. The diameter of the proximal part of the left coronary artery is from 3.2 mm to 7.7 mm [mean 5.3]. 3. The features of the branching are bifurcation [58%] trifurcation [38%] and quadrifurcation [4%]. 4. The diameter of the left anterior descending artery is from 2.7 mm to 8.1 mm [mean 4.5] and circumflex artery from 2.1 mm to 6.2 mm [mean 3.9].

비관통성 흉부손상 410예 보고

오중환 대한흉부심장혈관외과학회 1990 Journal of Chest Surgery (J Chest Surg) Vol.23 No.4

From Jan. 1985 to Sep. 1989, four hundred and ten patients were admitted to the department of Thoracic and Cardiovascular Surgery, Yonsei University College of Medicine with a diagnosis of nonpenetrating chest trauma. The most common cause of injury were motor vehicle accidents(75.1%) with the prevalent age group being their forties. The four most common findings were rib fracture(83.4%), hemothorax(50.7%), pneumothorax(24.6%) and clavicle fracture(12.0%), Fifty piratory insufficiency and the ventilation time was correlated with 6 fators : 1) shock 2) endotracheal intubation or tracheostomy 3) hemothorax 4) clavicle fracture 5) flail chest 6) more than three combined injuries or combined head injury. Ventilatory care was also related with mortality and complications such as pneumonia sepsis and empyema thoracis(p<0.05). The most common organism of post-traumatic infection were Pseudomonas and Staphylococcus.

항암제독탕가제조와 항암양제방에 대한 비교연구

오중환,박종형,한양희,김동우,전찬용,백은기,홍의실,한지완,임영남 대한한의학회 2003 대한한의학회지 Vol.24 No.3

Objective : Though modern medicine has made various studies in cancer treatment, the results of the treatments are not satisfactory. Considering this, Oriental medicine can be a breakthrough in treatment of cancer, and therefore, its constant research eagerly needed. According to preceding studies, Hangamjedoktang (Kangaizhidu-tang) with Hagocho appeared to be statistically significant against cancer, and therefore to seek a better medication for cancer, Holotrichia which seemed to be effective against cancer was added to the formula, and herbs which showed an anti-tumor effect in preceding studies composed Hangamyagjaebang. The efficacy of both Hangamjedoktang with Holotrichia (HJJ) and Hangamyagjaebang (Kangaiyaocaijang) (HM) was compared. Methods : To examine the anti-cancer effect of HJJ and HM, inhibitory effect on solid tumor growth in mice induced by Sarcoma-180 (s-180), change of body and organ weight in tumor bearing mice and the activity of machrophages and lymphocytes in the spleen were examined. Results : 1. In the HJJ and HM treated groups, tumor growth was markedly decreased. 2. HJJ and HM increased the activity of ALP which is produced from the splenocytes transplanted with S-180. 3. HJJ and HM increased the ACP activity of the macrophages of the mice transplanted with S-180. Conclusion : These results suggest that HJJ and HM are good candidates for new drugs for cancer therapy.

자연기흉의 양측 기포 동시제거술 : 11예 보고 11 CASES

오중환,윤양구,정경영,이두연,조범구,방서욱 대한의학협회 1990 대한의학협회지 Vol.33 No.2