부산대학교 도서관

From echocardiography, it was suspected that two large breed dogs with acute cardiac tamponade had right auricle tumors, hemangiosarcoma in particular. Both dogs underwent exploratory thoracotomies after pericardiocentesis. The patients underwent right fourth intercostal space thoracotomies, subtotal pericardiectomies and right auricle excisions. One dog had a remarkably thickened pericardium and a right auricle with a slightly thickened epicardium. A diagnosis of constrictive pericarditis was reached due to the clinical course of the right heart failure and histopathological examination, differing from the preoperative diagnosis. This dog followed an uneventful course without any treatment, and there was no confirmed tumorigenesis or pleural effusion at 1126 days after surgery. The other dog had a discolored and hypertrophic right auricle, and was diagnosed with hemangiosarcoma, similar to the preoperative diagnosis. Although this dog received adjuvant chemotherapy based on doxorubicin, the patient died 177 days after surgery due to metastasis and hemothorax. Due to the fact that cardiac tamponade can be caused by a variety of diseases, and its treatment and prognosis vary greatly depending on the disease, careful diagnosis and the appropriate selection of the patients that need surgery should be required.