Anestesia total intravenosa em animais de grande porte - revisão de literatura.

Abstract

Total Intravenous Anesthesia (TIVA) is a anesthetic modality that is based on the use of drugs only intravenously. This technique is increasingly used in veterinary medicine due to the creation of new drugs with pharmacokinetic and pharmacodynamic properties that allow its use in more lengthy anesthetic procedures, providing greater security by causes less depression of the cardiorespiratory system of the patient compared to inhalation anesthesia. Furthermore, TIVA is a low cost procedure because it no requires for its administration, expensive equipment such as anesthesia machines. The goal of TIVA is to offer the animal a state of hypnosis, muscle relaxation and analgesia during the anesthetic procedure,and the administration may be done in intermittent bolus, in continuous intravenous infusion, in bolus associated to continuous infusion at a constant rate and in target-controlled infusion. This study was conducted for the purpose of theorical study on the various TIVA protocols in large animals, demonstrating their techniques and anesthetic drugs used and their effect on the animal organism. Literature reviews were conducted on the topic proposed in books, scientific articles, monographs, dissertations, thesis, conference proceedings, and journals. These analyzes subsidized understanding of the TIVA as a very safe and practical anesthetic modality, applicable to any surgical procedure proposed to the patient, with few deleterious effects on the body.