Dogs which have undergone surgery by Dr Uechi in Japan over the last several years have lived longer than those dogs which are treated by medication alone. For dogs that have developed congestive heart failure (fluid in the lungs) and are taking diuretics, life-expectancy with medication alone is typically 6-12 months. But for those dogs that have had surgery with Dr Uechi, most (>70%) are still doing well 3 years after surgery. Dogs with very advanced which are taking multiple diuretics at the time of surgery also do better with 57% still alive 3 years post-operatively.
