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A Case of Postcardiac Injury Syndrome Presenting as Acute Mediastinitis
임홍규,배영필,이병두,김봉건,박종화,김분형,장재식 대한심장학회 2009 Korean Circulation Journal Vol.39 No.7
A 41-year-old man sought evaluation at the emergency department for pain in the anterior chest that had been ongoing for approximately 35 hours. The electrocardiogram showed marked ST segment elevation in the precordial leads. Cardiac biomarker levels were elevated. He subsequently underwent coronary angioplasty and stenting of the left anterior descending artery using two sirolimus-eluting stents. The following day, the patient complained of severe pain in his chest and shoulders. Computed tomography (CT) of the chest showed small gas bubbles around the aortic wall and mild pericardial thickening with subtle air densities, suggesting acute mediastinitis. With an impression of postcardiac injury syndrome and acute mediastinitis, he was treated with intravenous antibiotics and oral ibuprofen. Two days later, the patient had subjective improvement and the friction rub was no longer heard. A 41-year-old man sought evaluation at the emergency department for pain in the anterior chest that had been ongoing for approximately 35 hours. The electrocardiogram showed marked ST segment elevation in the precordial leads. Cardiac biomarker levels were elevated. He subsequently underwent coronary angioplasty and stenting of the left anterior descending artery using two sirolimus-eluting stents. The following day, the patient complained of severe pain in his chest and shoulders. Computed tomography (CT) of the chest showed small gas bubbles around the aortic wall and mild pericardial thickening with subtle air densities, suggesting acute mediastinitis. With an impression of postcardiac injury syndrome and acute mediastinitis, he was treated with intravenous antibiotics and oral ibuprofen. Two days later, the patient had subjective improvement and the friction rub was no longer heard.
보조계면활성제가 노닐페놀 에톡실레이트 계면활성제, 탄화수소 오일, 물로 이루어진 삼성분계의 상평형 및 동적거동에 미치는 영향
임홍규 ( Heung Kyoon Lim ),이슬 ( Seul Lee ),모다희 ( Da Hee Mo ),임종주 ( Jong Choo Lim ) 한국화학공학회 2012 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.50 No.6
본 연구에서는 보조계면활성제 첨가가 nonylphenol ethoxylate (NP) 계면활성제, 물, 탄화수소 오일의 3성분으로 이 루어진 시스템의 평형 및 동적 거동에 미치는 영향을 살펴보았다. 실험에서 사용한 펜탄올, 옥탄올, 데칸올 등의 보조 계면활성제는 모두 소수성 첨가제로 작용하였으며, 소수성 증가 효과는 알코올의 사슬 길이 증가 및 첨가량 증가에 따 라 증가하였다. 계면활성제 시스템이 친수적인 조건에서는 비극성 오일의 종류에 상관없이 시간에 따라 오일의 크기 가 감소하였으며, 마이셀 용액에 의한 탄화수소 오일의 가용화는 diffusion-controlled 메커니즘이 아닌, interfacecontrolled 메커니즘을 따름을 확인할 수 있었다. 반면에 소수성 조건에서는 과포화로 인하여 일어나는 자발적 유화 현 상과 물과 계면활성제의 오일상으로의 확산으로 인한 오일의 크기 증가가 관찰되었다. 비극성 탄화수소 오일과 계면 활성제 수용액 사이의 시간에 따른 계면장력 측정 결과는 동적 거동 실험결과와 일치하는 경향을 나타내었다. 한편 middle-phase 마이크로에멀젼을 포함한 3상이 형성되는 조건에서는 매우 낮은 계면장력으로 인하여 오일이 수용액 상 에 빠른 속도로 가용화되었고 작은 방울 형태로 유화되었다. In this study, the effects of cosurfactant on phase equilibrium and dynamic behavior were studied in systems containing nonylphenol ethoxylate (NP) surfactant solutions and nonpolar hydrocarbon oils. All the cosurfactants used during this study such as n-pentanol, n-octanol and n-decanol acted as a hydrophobic additive and the hydrophobic effect was found to increase with both increases in chain length and amount of addition of a cosurfactant. Dynamic behavior studies under hydrophilic conditions showed that the solubilization of hydrocarbon oil by NP micellar solution is controlled by an interface-controlled mechanism rather than a diffusion-controlled mechanism. Both spontaneous emulsification of water into oil phase and expansion of oil drop were observed under lipophilic conditions because of diffusion of surfactant and water into oil phase. Under conditions of a three phase region including a middle-phase microemulsion, both rapid solubilization and emulsification of oil into aqueous solutions were found mainly due to the existence of ultralow interfacial tension.
서울지역의 도축 소,돼지 지육에서의 잔류물질 비교 조사
임홍규 ( Hong Kyu Lim ),최태석 ( Tae Suk Choi ),윤은선 ( Eun Sun Yun ),이주형 ( Joo Hyung Lee ),기노준 ( No Joon Ki ),이정학 ( Jung Hark Lee ) 한국가축위생학회 2003 韓國家畜衛生學會誌 Vol.26 No.2
This study was carried out to compare the antibiotic residues in the muscles of cattle and pigs from slaughter-houses in Seoul from 2000 to 2002 by EEC-4-plate, Charm Ⅱ and l-IPLC methods. The results were summarized as follows; 1. Residual materials were detected from 41 samples(0.6%) by EEC-4-plate method from random sampling and 38 samples(12%) by Charm Ⅱ method from directed sampling. 2. Violation rates were 0.3% by monitoring and 4.7% by surveillance program. 3. The 35 samples were classified as tetracyclines 30(86%), sulfonamides 4(11%), b-lactams 1(3%) and two samples simultaneously determined oxyteracycline plus sulfadimetoxine, and sulfamerazine plus sulfadimetoxine. 4. The highest residual concentration(ppm) of chiortetracycine, oxytetracyclirie, sulfamethazine, sufadimetoxine and penicillin were 0.5, 12.0, 6.4, 2.6 and 0.44, respectively.