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Hello my name is***** and I am a licensed veterinarian with over 9 years of experience. I am hoping to help you with your pet Lola today. I just have a few questions to ask to gather some more information if you don’t mind? Was the surgery performed by a veterinary surgery specialist? How was he diagnosed with laryngeal paralysis? The reason why I am asking is because many Bulldogs who have problems with their soft palate usually have a list of other problems which include a narrower windpipe which could lead to a build up of negative pressure which leading to laryngeal collapse. Which is different from laryngeal paralysis which is due to damage or malfunction of a nerve in the throat called the cranial laryngeal nerve.
Though I would expect some swelling from the soft palate surgery I would be surprised it would be enough to cause the paralysis. Especially considering the anatomy, the nerve that is typically involved to cause laryngeal paralysis is not very close to the soft palate. In fact it is deep in the throat area. My suspicion would be that she already had an issue with the larynx. What I would recommend is that you ask the surgeon is there a difference between laryngeal paralysis and laryngeal collapse and is it possible that she could have had the issue prior to the first surgery
Usually dogs with elongated soft palates have other issues as well that make up a condition called the brachycephalic syndrome. This includes an elongated soft palate, narrowed trachea, everted saccules of the larynx, collapsed larynx, and narrowed nostril openings or nares. Not all dogs will have all the problems at once but as they get older more problems may be discovered that may need surgical correction
It is a risky surgery but weighing the costs vs the benefits I would recommend having it done. The larynx is very important is not only important in dogs for its function in respiration, it also contributes to regulating temperature in dogs. So dogs with a laryngeal malfunction often suffer from overheating in extreme weather conditions because of a decrease ability to pant. Also you have to worry about respiratory issues with the larynx not closing and opening correctly.
As far as it being genetic, in a way most brachycephalic breeds such as english bull dogs, and boston terriers can be prone to this condition because of their design. So it is not uncommon for a few in the litter to show up with differing degrees of these problems. The ones with the most severe condition are encouraged not to breed because their offspring will have a higher chance of the same issues.