When a dog has heart failure and dies of heart failure the dog's heart can't pump blood through the dogs body very well.
This then leads to coughing, exhaustion, a swollen belly, and eventually, the dog's lungs will fill with fluid, and he or she will essentially feel as if he or she is drowning in their own body.
On average dogs diagnosed with heart disease live between 2 years to 3 years.
A 2018 study found that even dogs presenting with advanced heart failure (heart failure that recurred even after appropriate medical therapy) survived an average of approximately one year with changes in their treatment, with some dogs living nearly three years.
Although it also depends on the age of the dog and the older the dog the less it will live with the heart disease.
But you can expect the dog to live 2 to 3 years with heart disease.
The symptoms of the final stages of congestive heart failure in dogs include.
Difficult or rapid breathing.
Weakness or lethargy (tiredness)
Gray or blue gums.
Difficulty breathing / shortness of breath.
Inability to exercise.
Pacing before bedtime and difficulty settling down.
Lack of appetite.
Swollen belly (due to fluid buildup)
A dog can survive a heart attack.
However most times a dog dies from a heart attack as it can come on suddenly and the dogs owner may not know about it to help them.
If you think your dog is having a heart attack or about to have a heart attack and you can get the dog to a vet then you should do so.
Some dogs with defective heart function or abnormalities may require a pacemaker.
Many dogs can live a long, healthy life with heart disease, as long as they receive effective care and supportive treatments, as well changes to nutrition, exercise, and weight management.
Cell death is usually due to oxygen deprivation caused by obstruction of the coronary blood vessels that supply blood to the heart muscles.
Heart attacks are rare in dogs but unexpected and sudden death in dogs diagnosed with any form of heart disease is possible.
Symptoms of a heart attack in dogs include.
Slight fever (over 103° Fahrenheit/39.4° Celsius) Vomiting. Panting/abnormal breathing.
Increased heart rate (over 100 beats per minute for large breeds) (over 140 beats per minute for small breeds)
Do your best to keep your pet calm and wrap them in a blanket for transport.
Don't attempt CPR on your dog unless you have been trained to do CPR on canines, as this can cause further damage.
Call your Vet or get the dog to the vet if possible.