Results of surgical correction of abnormalities associated with brachycephalic airway obstruction syndrome in dogs in Australia

Abstract

Laryngeal collapse is relatively common in dogs presented for surgical correction of brachycephalic airway obstructive disease. Dogs with severe laryngeal collapse often respond well to surgery. Clinical signs rarely resolve completely following surgery.

Factors associated with major complications in the short-term postoperative period in dogs undergoing surgery for brachycephalic airway syndrome

“…This dog had a left-sided cricoarytenoid lateralization along with caudal staphylectomy and sacculectomy and also required a temporary tracheostomy after surgery. Dogs evaluated for grades 2 and 3 laryngeal collapse have been reported to have a 83% to 100% survival rate in the postoperative period if a temporary tracheostomy was performed concurrently with a left-sided cricoarytenoid lateralization (6,16). Unlike these previous reports, this dog was only responsive to mechanical ventilation.…”

“…The most common breed reported in our study was pugs (32%), which was higher than in previous reports (9% to 21%), and may represent a difference in regional breed distribution (1,4,7). Mean age has been previously reported as 30 to 38 mo with a range of 2.5 to 189 mo (1,4,6,7,9). The present study reported a mean age of 53 mo, which is higher than in previous reports, but was not found to be a significant risk factor for complications.…”

“…Persistently increased negative pressure within the upper airway can also lead to various grades of laryngeal collapse. Grade I laryngeal collapse is defined as everted laryngeal saccules and is reported in 56% to 59% of cases (1,4,6). Gastrointestinal signs have also been documented to be associated with BAS and medical treatment of these signs, along with surgical correction of BAS, have improved outcome and prognosis (7,8).…”

“…Even with the persistence or recurrence of clinical signs following surgery, including laryngeal collapse, Torrez et al (6) identified that 57% of dogs with long-term follow-up were reported by owners to be much improved clinically. Poncet et al (7) determined that 92% of dogs undergoing BAS surgery had a significant improvement in respiratory signs within 6 wk after surgery.…”

Usefulness of basic laboratory parameters for monitoring during the perianesthetic period for selected ophthalmic operations in mesaticephalic and brachycephalic dogs

“…The facial and occipital skull bones become deformed, causing a myriad of undesirable medical traits collectively referred to as BAOS (brachycephalic obstructive airway syndrome) (22). This syndrome includes soft palate elongation, stenotic nares, an increased amount of tissue in the throat and submandibular area, laryngeal collapse, tracheal hypoplasia, everted laryngeal saccules with mucous membrane edema and hyperplasia (6,20,25). Because brachycephalic dogs are predisposed to BAOS, it is assumed that the risk of general anesthesia for the whole group is increased (3,13 Changes occurring during general anesthesia may persist after its completion.…”