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김근,장봉현,이종태,김규태,이상범,Kim, Keun,Chang, Bong-Hyun,Lee, Jong-Tae,Kim, Kyu-Tae,Lee, Sang-Bum 대한흉부심장혈관외과학회 1992 Journal of Chest Surgery (J Chest Surg) Vol.25 No.3
We evaluated the correlationship between the predicted defect size at preoperative examination and the actual defect size at operation room, by examining 69 cases of ventricular septal defect operated at the deparment of Thoracic and Cardiovascular surgery, Kyungpook University Hospital from January 1988 to December 1990. We excluded cases associated with other cardiac anomalies. Of the 69 cases, 39 are male and 30 female, forming 1.3:1 sex ratio in males favor. Their age range from 6 months to 16 year, and 4.3 on the average Their body weights are from 6 to 45kg and 15 on the average. According to Soto`s classification, perimembranous type costitutes 42 cases[61%], doubly committed subarterial type 23 cases[33%], and muscular type 4 cases[6%]. The average diameter of defect size is 8.0$\pm$3.5mm measured in 2D-echocardiogram, 5.6$\pm$3.4mm in angiogram, and 7.4$\pm$4.4mm in operative field. There is statistically significant correlation between the size from 2D-echocardiogram and actual defect size[p=0.001], and no significant difference between the two. Especially in the cases without anurysmal formation, they are nearly the same. Cardiothoracic ratio, pulmonary to systemic flow ratio, pressure ratio and resistance ratio also have statistically significant correlation. Main pumonary artery to descending aorta diameter ratio is correlated with the actual defect size. There is statistically significant correlation between the size from angiogram and actual defect size with some difference.
식도 자연파열[Boerhaave 증후군]의 외과적 치료;2례 보고
김근,장봉현,이종태,김규태,Kim, Keun,Chang, Bong-Hyun,Lee, Jong-Tae,Kim, Kyu-Tae 대한흉부심장혈관외과학회 1992 Journal of Chest Surgery (J Chest Surg) Vol.25 No.8
The spontaneous rupture of the esophagus is an uncommon disease, but without early diagnosis and treatment, the mortality rate is high. This report is on the two cases treated at the Department of Thoracic and Cardiovascular Surgery, College of Medicine, Kyu-ngpook National University. The first patient, after heavy drinking, had vomiting followed by chest pain, dyspnea and subcutaneous emphysema. After diagnosis using an esophagogram, an operation was perfomed. About a 4cm rupture was found at the lower left part of the esophagus and was primarily sutured with the intercostal muscle. The patient was weaned from the ventilator after 40 hours. The second patient had symptoms the same as the first case. Six days after the app-earence of the symptoms, the patient was treated by the Thais onlay gastric patch method. The leakage happened after the surgery and he received a conservative treatment. After discharge no abnormalities, such as leakage and stricture, were found on the eso-phagogram The two patients now live a normal life.
김근한(Keun Han Kim),이남희(Nam Hee Lee),백인규(In Kyu Paik),박재형(Jae Hyung Park),양재규(Jae Kyu Yang) 大韓環境工學會 2010 대한환경공학회지 Vol.32 No.5
본 연구에서는 가죽 생산 공정 중 원피 무게의 50% 이상 고형 폐기물로 발생하는 콜라겐 단백질의 섬유 기재에 미모사(Catechol Tannin) 및 채스트넛(Pyrogallol Tannin)과 같은 식물성 탄닌물질을 다양한 조건에서 고정화시킨 10 가지 다른 종류의 바이오 흡착제를 제조하였다. 제조한 각 바이오 흡착제들의 중금속 제거용 흡착제로서의 성능 평가를 위하여 Cu(Ⅱ), Cd(Ⅱ), Zn(Ⅱ), Pb(Ⅱ), Cr(Ⅲ) 이온을 함유한 인공 오염수를 사용하여 다양한 반응 조건에서의 회분식 실험을 실시하였으며, 중금속들의 제거 특성을 규명하였다. 미모사를 탄닌물질로 사용하여 콜라겐에 고정화 반응을 시켰을 때 섬유 번들 내부로의 미모사의 침투력은 나프탈렌계 침투제의 주입량에 비례 하였다; 3%≥1.5%>0%. 모든 바이오 흡착제들에서 pH₃.0 이하에서는 중금속 이온들의 제거는 거의 일어나지 않았으나 pH 3.0 이상에서 중금속의 제거율이 급격히 발생하였으며 Zn(Ⅱ)을 제외한 나머지 중금속이온들은 pH 6.0 이상에서는 거의 완전히 제거되었다. Cr(Ⅲ)의 경우에는 바이오 흡착제 종류별 제거량이 매우 유사한 경향을 나타내었으나 Cu(Ⅱ), Zn(Ⅱ), Pb(Ⅱ)의 제거에서는 축합형 탄닌(미모사)에 비해 이온결합이 가능한 다량의 카르복실기를 함유한 가수분해형 탄닌(채스트넛)을 사용하여 고정화시킨 바이오 흡착제에서 높은 제거 능을 보였다. S10 바이오 흡착제에 대한 Pb(Ⅱ) 및 Cu(Ⅱ) 중금속 이온들의 흡착은 이온농도가 1,000배 변화거나 경쟁이온화학종을 일하전 및 이하전 화학종을 사용하였을 때 영향을 받지 않았다. In this study, ten different bio-adsorbents were prepared by immobilization of vegetable tannins such as mimosa(Catechol Tannin) and chestnut(Pyrogallol Tannin) on the collagen matrix which was derived from during leather manufacturing processing. Removal efficiency of Cu(Ⅱ), Cd(Ⅱ), Zn(Ⅱ), Pb(Ⅱ), Cr(Ⅲ) by each bio-adsorbent in synthetic wastewater was evaluated by a laboratory-scale batch reactor at different reaction conditions. When mimosa was used as a vegetable tannin, the penetration efficiency of mimosa into the inner bundle of fiber depended on the dose of the naphthalene condensated penetrant; 3%≥1.5%>0%. For all bio-adsorbents, removal of heavy metal ions was not observed below pH 3.0 but was rapidly increased between pH 3.0 and 6.0, showing near complete removal of all heavy metal ions except Zn(Ⅱ) above pH6.0. Removal of Cr(Ⅲ) was quite similar for all bio-adsorbents while removal of Cu(Ⅱ), Zn(Ⅱ) and Pb(Ⅱ) was higher by bio-adsorbents immobilized with chestnut than that by mimosa. Adsorption of Pb(Ⅱ) and Cu(Ⅱ) by S10 bio-adsorbent was little affected by the presence of monovalent and divalent electrolytes as well as variation of 1000 times ionic concentration with NaNO₃.
활로씨 4징증을 동반한 완전방실중격결손의 수술치험;1례 보고
김근,장봉현,이종태,김규태,Kim, Keun,Chang, Bong-Hyun,Lee, Jong-Tae,Kim, Kyu-Tae 대한흉부심장혈관외과학회 1992 Journal of Chest Surgery (J Chest Surg) Vol.25 No.8
A 25-month-old patient with complete atrioventricular septal defect and Tetralogy of Fallot underwent repair of both anomalies. The diagnosis was established preoperatively by 2D-echocardiography, cardiac catheterization and cardioangiogram, Repair was accomplished using cardiopulmonary bypass and profound hypothermia to 18C, Closing of the atrioventricular septal defect was achieved with the use of two Dacron patchs by an atrial approach alone. Infundibulectomy and outflow tract reconstruction with the transannular pericadial patch containing a monocusp were performed. Upon the postoperative evaluation by 2D-echocardiography, mitral regurgitation was absent, but a tiny dehiscence of ventricular patch and minimal tricuspid regurgitation were noticed.