TAILIEUCHUNG - Báo cáo khoa học: " A case of patent ductus arteriosus in a holstein calf"

Tuyển tập các báo cáo nghiên cứu khoa học quốc tế về bệnh thú y đề tài: A case of patent ductus arteriosus in a holstein calf | J. Vet. Sci. 2004 5 1 83-84 JOURNAL OF Case Report Veterinary Science A case of patent ductus arteriosus in a holstein calf Byeong-Han Lee and Won-Gon Kim1 Department of Laboratory Animals Asan Institute for Life Sciences Asan Medical Center Seoul 138-736 Korea 1 Department of Thoraic Cardiovascular Surgery Seoul National University Hospital and Heart Research Center College of Medicine Seoul National University Seoul 110-799 Korea This report describes a case of patent ductus arteriosus PDA which was found in a calf during an experiment on an implantable ventricular assist device. This is the first case report of PDA confirmed in the calf in Korea. Key words Patent ductus arteriosus PDA calf Although many congenital cardiovascualr abnormalities have been found in cattle 5 6 patent ductus arteriosus PDA in calves has been infrequently reported. We present a case of PDA found incidentally in a calf during an experiment on an implantable ventricular assist device. It is believed to be the first confirmed report of PDA in the calf in this country. The subject was a three-month old male Holstein calf weighing 80 kg which was brought to an animal research facility of Seoul National University Hospital for the experiment. The animal showed no particular abnormal findings during one-week preoperative observation period. On physical examination the conjunctival and oral membranes were neither pale nor cyanotic. No significant hematological abnormalities were detected Table 1 . The calf was not examined on the heart any more before the operation because we did not expect to meet the calf with PDA incidentally. During the operation a PDA with a diameter of cm and cm in length was found adjoining the descending aorta and the pulmonary artery Fig. 1 . A typical continuous machinery thrill was detected over the PDA. The PDA was doubly ligated with 1-0 silk. Little is known of the cause of cardiac defects. Hereditary factors have been suggested for some types of cardiac

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