Persistent ductus arteriosus in a dog: Case report

Abstract

The aim of this study was to report a case of persistent ductus arteriosus (PDA) in a dog, given the importance of early diagnosis and subsequent surgical correction to increase the animal's outlook on life. This cardiac anomaly is characterized by the non-closure of the ductus arteriosus, which must occur physiologically after the birth of the fetus. A five-month-old male German Spitz canine, not castrated, underwent clinical care for pediatric consultation. During the physical examination, a murmur to cardiac auscultation was detected. In view of this finding, he was indicated for cardiological evaluation. For this, an echocardiogram was performed, which enabled the diagnosis of persistent ductus arteriosus. After the diagnosis, surgical treatment was suggested, which was performed fifteen days after the imaging exam. The surgical procedure was performed by means of left lateral thoracotomy to access the aorta and pulmonary arteries, allowing duct occlusion, made with 2-0 silk thread. In the immediate postoperative period, the patient was referred for admission, being released to his home after 24 hours. During clinical evaluation and a new Doppler echocardiogram, the presence of the PDA was not evidenced and a heart murmur was not heard, characterizing surgical success. Thus, it was possible to conclude that surgery to correct the duct was fundamental to enable an increase in the expectation and quality of life of the animal.