Chapter 167 Principles of Thoracic Surgery
Thoracic surgery frequently is performed in small animals for a variety of disorders, especially in referral centers. Thoracotomy is commonly performed to correct routine cardiovascular defects such as patent ductus arteriosus and to evaluate and correct respiratory diseases such as pulmonary neoplasia. Exploratory thoracotomy may be indicated to determine the extent of diseases such as neoplasia and diffuse infection and to obtain biopsies to help establish a definitive diagnosis. It is important to be well versed in the anatomy and physiology of the thoracic cavity and its major structures and to be familiar with the principles of anesthetic management of the thoracic surgery patient.
Recently, minimally invasive thoracic exploratory (thoracoscopy) has become an alternative to traditional methods of thoracic surgery in veterinary medicine. Thoracoscopy requires specialized instrumentation and expertise, generally limiting its users to surgical specialists. Refer to the clinical literature and appropriate texts if more information on thoracoscopy is desired.
|Tidal volume||15–20 ml/kg of ideal body weight|
|Peak airway pressure||15–20 cm H2O—closed|
|20–30 cm H2O—open|
|Inspiratory time||1–1.5 sec|
|Expiratory time||2–3 sec|
Modified from Faggella AM, Raffe MR: Anesthetic management of thoracotomy. Vet Clin North Am 17:480, 1987.