It is not strictly within the scope of this website – but we know of many elderly vizslas that develop a condition known as Laryngeal Paralysis.The principal signs are noisy, wheezy breathing and heat/ exercise intolerance (because of lowered oxygen levels) A lot of these vizslas have been helped by a procedure known as “tie-back surgery”

This is a very good article

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Here is a video clip of an affected dog – turn up the volume to hear a very distinctive wheeze. This girl had successful tie back surgery at 13yo and lived another 2 great and active years where she breathed easily once again