Treatment for subvalvular aortic stenosis can be by medical management or by surgical correction. If you chose medical management, your veterinarian will prescribe medications including a beta-blocker which can potentially decrease myocardial oxygen demand and reduce ventricular wall stress. If your dog develops an arrhythmia, an antiarrhythmic medication will be prescribed as well. You may need to have checkups with your veterinarian more frequently than you would another pet, but it would be in your dog’s best interest.
If you want surgical intervention, one option is a balloon valvuloplasty. This is a short term fix but not consistent as a long term fix. The other surgical option is open resection. This is a very expensive surgery and very few facilities are set up to perform this type of surgery. It is also very risky with a high morbidity/mortality rate.
There are also herbal medication, homeopathic remedies, and Chinese holistic medications you can look into in addition to western medicine. This would require you to go to a holistic veterinarian who is practiced in the field, but it can be an extremely beneficial option for your dog. In some cases, you may even utilize a combination of western medicine and holistic medicine for the best treatment plan for him.