Manejo anestésico na correção da persistência do ducto arterioso em cão: relato de caso

Abstract

The Patent Ductus Arteriosus (PDA) in dogs is a congenital condition where a vital arterial canal fails to close properly after birth, resulting in an abnormal blood flow between the aorta and the pulmonary artery. This can lead to severe cardiac complications. Anesthetic management in dogs with PDA during corrective procedures must be carefully planned, considering the compromised cardiac function and increased risk of cardiovascular complications. The selection of anesthetic agents, techniques, and mechanical ventilation strategies should consider their ability to minimize impact on the cardiovascular system and prevent cardiac overload. A clinical case is presented where a three-month-old male Zwergspitz breed dog was diagnosed with PDA during a pediatric consultation, confirmed through echocardiography. The chosen treatment involved corrective surgical intervention using multimodal anesthetic techniques with the use of meperidine as pre-anesthetic medication; lidocaine, etomidate, ketamine and fentanyl as inducing agents; isoflurane, remifentanil and dobutamine during maintenance; and bupivacaine, methadone, dipyrone, and meloxicam for postsurgical analgesia, resulting in a successful patient recovery