Use of lidocaine, propranolol, amiodarone, and verapamil in toad envenoming (genus bufo) in dogs



Título del documento: Use of lidocaine, propranolol, amiodarone, and verapamil in toad envenoming (genus bufo) in dogs
Revista: The journal of venomous animals and toxins
Base de datos: PERIÓDICA
Número de sistema: 000298733
ISSN: 0104-7930
Autores: 1
2
Instituciones: 1Universidade Estadual Paulista "Julio de Mesquita Filho", Faculdade de Medicina Veterinaria e Zootecnia, Botucatu, Sao Paulo. Brasil
2Universidade do Oeste Paulista, Faculdade de Medicina Veterinaria, Presidente Prudente, Sao Paulo. Brasil
Año:
Periodo: Dic
Volumen: 7
Número: 2
Paginación: 240-259
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Aplicado, descriptivo
Resumen en inglés Toad envenoming in dogs can cause death by cardiac fibrilation (CVF). Traditional therapy consists mainly of atropine and propranolol, the last one used to prevent the CVF, that is preceded by negative ventricular deflections (NVDs) in the QRS complex of the electrocardiogram. This study intended to verify, comparatively, the lidocaine, propranolol, amiodarone, and verapamil abilities to prevent CVF in experimentally envenomed dogs. Thirty-six dogs were divided into 6 groups (GL, GP, GA, GV, GST, and GSV) with n=6; the dogs were submitted to volatile anaesthesia. The animals of the groups GL, GP, GA, and GV received 0.38g of toad venom through oro-gastric catheter and were treated with the following drugs respectively: lidocaine (4mg/Kg), propranolol (0.1mg/Kg), amiodarone (8mg/Kg), and verapamil (2mg/Kg). These drugs were repeated if NVDs reappeared with cardiac frequency > 150, GST was not treated and GSV was just anaesthetized. The following results were obtained: GL, NVDs present in 4 animals, 100% recuperation with 3.66 doses/animal; GP, NVDs present in 2 animals, 100% recuperation with 1.66 dose/animal, with bradycardia at the anaesthetic return; GA, NVDs present in 3 animals, 33.33% recuperation with 1.5 dose/animal; GV, NVDs present in 4 animals, 100% recuperation with 2.16 doses/animal; GST, NVD present in 6 animals, 100% death and GSV, NVDs absent, 100% recuperation. As a conclusion, the anaesthetic proceedings used, did not cause NVDs, the envenoming that was not treated was lethal, and among the antiarrhythmics drugs
Disciplinas: Medicina veterinaria y zootecnia
Palabras clave: Medicina veterinaria,
Pequeñas especies,
Envenenamiento,
Perros,
Sapos,
Fibrilación cardíaca,
Lidocaína,
Propranolol,
Amiodarona,
Verapamil,
Bufo
Keyword: Veterinary medicine and animal husbandry,
Companion animals,
Veterinary medicine,
Envenomation,
Dogs,
Toads,
Cardiac fibrillation,
Lidocaine,
Propranolol,
Amiodarone,
Verapamil,
Bufo
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