Video-assisted left partial arytenoidectomy by diode laser photoablation for treatment of canine laryngeal paralysis
Kotby  has divided the causes of laryngeal paralysis
into central and peripheral, and the peripheral causes can be further divided into idiopathic, cancerous, surgical, traumatic, post-intubation because of chest diseases and others.
Snoring can also be caused by laryngeal paralysis
(loss of function or feeling in one or both of the vocal folds) in large-breed dogs.
Your veterinarian may want to check for upper respiratory problems such as laryngeal paralysis
or dysfunction, collapsing/collapsed trachea, nasal or throat growths, pneumonia, lung tumors, infections, or complications that can lead to blockage of the nasal passages.
As a last comment, if the laryngeal paralysis
is corrected surgically, the dog's voice will be altered.
The patient was a 50-year-old woman with bilateral laryngeal paralysis
and hypoparythyroidism resulting from a thyroidectomy performed more than 30 years previously.
Rudi has laryngeal paralysis
, a condition which reduces the size of the opening to the windpipe.
Any condition short of laryngeal paralysis
is not sufficient for return, nor is paralysis alone with no accompanying noise.