Here's what Lynn needs to know...
Unilateral arytenoid lateralization (UAL) is recommended because higher complication rates are seen with other surgical options (complications include the need for permanent tracheostomy, vocal fold excision, partial laryngectomy, castellated laryngofissure (I have no idea what that is.), or muscle-nerve pedicle transposition (sounds terrible). UAL is considered a referral procedure.
Aspiration pneumonia reported in 8-33% of dogs after UAL.
Coughing/gagging in 10-16% after UAL.
Respiratory distress requiring temporary tracheostomy; postoperative megaesophagus; concurrent respiratory tract, esophageal, neurologic, or neoplastic disease. Laryngeal paralysis is now considered just one part of GOLPP - geriatric onset laryngeal paralysis polyneuropathy - and so if GOLPP worsens, surgery may not have been of value in the long run.
Prognosis and outcome:
Reduction of respiratory signs and improved exercise tolerance in 90% of dogs after UAL.
Poor with GOLPP; generalized signs commonly develop within 1 year of diagnosis of idiopathic laryngeal paralysis
Mortality rate 14%; higher complications noted in older dogs or those with concurrent respiratory, esophageal, or neurologic disease.