Congestive Heart Failure in Cats
Congestive Heart Failure in Cats - Symptoms, Causes, Diagnosis, Treatment, Recovery, Management, Cost
What is Congestive Heart Failure?
Congestive heart failure in cats is a life-threatening condition that requires immediate medical treatment. Early detection may significantly increase the chance of survival. If a cat is displaying possible symptoms, a prompt veterinary consultation is warranted.
Congestive heart failure (CHF) is a condition that occurs when insufficient blood is circulated throughout the body, causing fluid to back up into the lungs. Failure can occur in either the right or left side of the heart, or in both sides. It is commonly caused by a thickening of the heart walls, also known as hypertrophic cardiomyopathy.
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Congestive Heart Failure Average Cost
From 474 quotes ranging from $200 - $3,000
Average Cost
$1,800
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Symptoms of Congestive Heart Failure in Cats
Symptoms may develop slowly, making them easy to miss unless owners are vigilant. Affected cats may display one or more of the following symptoms:
  • Difficulty breathing
  • Rapid breathing
  • Weakness/lethargy
  • Increased heart rate
  • Decreased appetite
  • Hind limb paralysis
  • Unusual lung sounds
  • Pale or blue-tinted mucous membranes
  • Heart murmur
  • Enlarged liver
  • Abdominal distension 
  • Collapse
  • Sudden death
Causes of Congestive Heart Failure in Cats
Congestive heart failure can affect cats of any age, breed, or gender. It occurs more often in cats that are middle-aged or older. There is also evidence that the Maine Coon breed may have a genetic predisposition. Common causes of CHF include:
  • Hypertrophic cardiomyopathy 
  • Thyroid disorder
  • High blood pressure
  • Pericardial effusion (fluid surrounding the heart)
  • Anemia
  • Abnormal heart rhythm
  • Heart defects
  • Narrowing of aortic artery
  • Heartworm disease
  • Tumors
  • Pregnancy
  • Birth defects 
Diagnosis of Congestive Heart Failure in Cats
The treating veterinarian will review the cat's full medical history. Owners should be prepared to discuss details regarding the onset and severity of symptoms and share any theories regarding any other possible causes. Since the condition is sometimes hereditary, any information that can be provided regarding the cat’s family line will also be helpful. 
A physical exam will be performed and standard lab tests will be ordered. These include a complete blood count (CBC), thyroid test, electrolyte panel, biochemical panel, urinalysis and heartworm test. Cats may also be tested for feline immunodeficiency virus (FIV) and feline leukemia (FeLV). Using a stethoscope, the vet will be able to note sounds of congestion which would indicate the presence of fluid in the lungs. Blood pressure will be measured and visual diagnosis may be made using chest X-rays, electrocardiogram (ECG) and/or echocardiogram.
Treatment of Congestive Heart Failure in Cats
Congestive heart failure caused by hyperthyroidism may be reversed once the thyroid condition has been successfully treated. In other cases, the treatment plan will be based on the severity of symptoms and the underlying cause of the condition:
Hospitalization
If symptoms are severe, particularly if the cat is having difficulty breathing or has extremely low blood pressure, hospitalization may be required. Oxygen therapy may be administered when there is fluid surrounding the heart or lungs, and the fluid may need to be drained. This will help to ease pressure on the heart, makes breathing easier. When fluid build-up has been removed, the heart is able to pump blood more efficiently. If fluid is present in the chest or abdomen, it may be removed using a technique called tapping.
Surgical Treatment
Surgery may be recommended to treat cases of congestive heart failure that are caused by a birth defect or a congenital or acquired heart valve disease. This treatment option is often expensive and requires a surgical specialist. 
Symptom Management
In most cases, congestive heart failure it is not curable. Prescription medications can be used to control symptoms and improve the overall quality of life. Diuretics help to reduce fluid build-up, and vasodilators or ACE inhibitors ease the flow of blood through the body by dilating the blood vessels. Positive inotropes cause the heart to beat more forcefully, which increases the amount of blood that is pumped through the body. Prescription medications will likely need to be used for the remainder of the cat’s life.
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Recovery of Congestive Heart Failure in Cats
Cats that have been diagnosed with congestive heart failure will need frequent follow-up visits. During the appointments, it is likely that blood tests, radiographs, and echocardiograms will be performed in order to monitor the cat's heart health. It is important to attend all follow-up appointments as medication may need to be adjusted periodically.
A low-sodium diet that is balanced and highly nutritious will likely be recommended. There are many commercially-available cat foods that meet this requirement. Diet is very important to successful recovery, and no changes should be made without first checking with the veterinarian. 
In some cases, the vet will recommend a moderate exercise plan intended to strengthen the heart while keeping blood pressure at a controlled rate. If the vet has not specifically recommended exercise then the cat should be kept calm and activity should be limited. When cats are unwilling to comply, owners may need to take preventative measures. Periodic cage rest may be necessary and it may be helpful to set up barriers to limit space available for running and jumping.
Congestive Heart Failure Average Cost
From 474 quotes ranging from $200 - $3,000
Average Cost
$1,800
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Congestive Heart Failure Questions and Advice from Veterinary Professionals
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Half Persian
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Casper
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3 Years
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My pet has the following symptoms:
Bite Mark
My cat died yesterday suddenly she was perfectly healthy and was pregnant was about to deliver her babies in few days. She went outside and we found her dead. She had bite mark on her body but It didn’t seem to be the cause of death. I want to know the cause of her death. Her eyes were partly open her mouth was open n her tongue was hanging out of her mouth. She was 3 year n 3 months old. She became pregnant for the 4th time n there was very little gap between her 3rd and 4th pregnancy. When we found her dead she was sitting in her normal position infront of the door. Her babies died too with her.
July 13, 2018
0 Recommendations
Whilst I understand that this is a distressing time for you but I cannot determine a cause of death without performing a necropsy, if you’re looking for answers for the cause of Casper’s death you should ask your Veterinarian for a necropsy. Possible causes may include pregnancy complications, infections, trauma, congenital disorders, poisoning among many other possible causes. Regards Dr Callum Turner DVM
July 13, 2018
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ESH
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Mookie
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7 Years
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My pet has the following symptoms:
Lethargic, Not Eating Much,
How long will my cat live with CHF? I am having a very hard time getting him to take the meds. I have tried pill form, which has been a battle. I recently got liquid form from the compounding Pharm. At first he would eat it in his food. But, after about 2-3 days, he just walks away from it. He's definitely not getting a full dose of meds everyday.
June 22, 2018
Answered by Dr. Michele K. DVM
0 Recommendations
How Mookie will do with his heart condition completely depends on what stage he is in and how severe his heart failure is. I'm not sure what medications he is on, but some of the medications are probably better than none. it would be best to call your veterinarian to see what to expect if he does not take his medications, as you do not want Mookie to suffer.
June 22, 2018
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American Short Hair
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B
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4 Years
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My pet has the following symptoms:
Lethargy
Not Eating
Not Moving
Breathing Faint
My cat had diarrhea this past Monday and has barely ate food. We took him to the vet and they sent him home with “weight management” food by scientific diet and some probiotic to feed him for the next two days. Since last night he has been very lethargic, not eating drinking a lot of water. Today he was limp like a rag doll so I took him to the er and we found out he has hcm/ congestive heart failure. What are his success rate?
June 15, 2018
0 Recommendations
It is very difficult to determine prognosis since the severity of the condition, the severity of the symptoms, response to treatment among other factors will ultimately determine the prognosis. You should follow up from the emergency visit with a visit to your regular Veterinarian who will be able to give you an idea of what to expect. Regards Dr Callum Turner DVM
June 15, 2018
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short hair
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Patsy
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11 Years
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My pet has the following symptoms:
Wheezing
Occasional Coughing Fits
Jerky Breathing
My cat is 11 years old, and was diagnosed with myocardial hypertrophy four and a half years ago. The cardiologist said he would rate the progression as moderate based on the ekg and xray. I decided against further treatment at the time, owing to my lack of funds, and we’ve had a good 4, asymptomatic years together. About 2 to 3 weeks ago I thought I noticed that her breathing pattern had started to change (sudden, jerky breaths) and I thought perhaps she was a little more lethargic. Over the last two or three days I can definitely hear a rattle-y wheeze when she breathes and her lethargy has increased. She is still eating, drinking, grooming, and asks to go outside. It seems clear to me she has some pulmonary edema and is at some early to middle stage of CHF, possibly rapidly progressing. I’m not interested in putting her through rounds of X-rays and EKGs and blood work and IVs for the rest of her life. But I would also like to be humane and do the best I can to make the rest of her life as long and pain free as possible without the luxury of those tests and treatments. Or at the least, have an informed sense of when she’s in too much pain or discomfort to let her continue on like this. Can anyone help me?
June 11, 2018

0 Recommendations
If you’re noticing a sudden change in Patsy’s condition and health is declining you should visit your Veterinarian for an examination as it is very difficult to give specific advice about cases like this without personally examining a patient first. Also, there may be some medical management options like diuretics which may make her more comfortable but you would need to discuss this with a Veterinarian in person. Regards Dr Callum Turner DVM
June 12, 2018
Nice.
July 2, 2018
Dazz R.
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dsh
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Simon
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7 Years
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My pet has the following symptoms:
Asymptomatic
I have been planning to move from NYC to California with my two cats. To my surprise, Simon was diagnosed with myocardial disease 6 months ago--he had no symptoms. He started taking enalapril, pimobendan, and Plavix. (He does not have CHF.) He had his second EKG last week, and the vet said one of the chambers of his heart had actually gotten smaller. The report mentions systolic and diastolic dysfunction, mild concentric left ventricular hypertropy, mild atrial dilation, and dynamic right ventricular outflow tract gradient (benign). He has no cardiac related symptoms. My question is about travel with him. I do not want to put him in danger by putting him on a plane. We live in a quiet apartment, and the cats spend only about 15 minutes in their carriers on the way to and from the vet. No other travel. Could being confined, the noise of the airport, the long flight, etc., stress him out so much that he goes into CHF? Would it help to start taking them on long car trips so they get used to being confined to their carriers and being in motion? I have been wanting to move for years, but I simply could not go if it would be a significant threat to Simon. I know this sounds crazy, but if I could hire my vet to come on the flight with us--with whatever medications would be appropriate--would that be helpful? (I've known my vet for a very long time, he has family in California, and this is really not as crazy as it sounds.) I know there are no guarantees, but I would appreciate any insights you might have. This is a tough decision.
May 16, 2018

0 Recommendations
You should discuss Simon’s condition and your plans with your Veterinarian, since I haven’t personally examined Simon I cannot clear him as being fit to travel by air; care must be taken to determine the travel conditions of the airline you plan on travelling with as some airlines allow pets (cats and small dogs) in the cabin while others put them in the cargo hold. Regards Dr Callum Turner DVM
May 17, 2018
Talk to your vet about giving simon medication to help him sleep the entire way -although I'm not sure it would last for a 6 hour flight plus airport time. American Airlines lets you fly with your cat on board for a fee. When you do this you reserve one of the only 3 allowable pet spots the plane. It seems when we flew other airlines couldn't guarantee a spot. It is very stressful for the cat to fly. We've done it twice and the second time with knocking them out which was much better (but they were healthy too.) Good luck.
July 23, 2018
Margaret
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mixed
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Luna
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6 Years
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My pet has the following symptoms:
Trouble Walking
Our cat Luna was acting very strange a couple days ago. Meowing and breathing rapidly. We did some quick research and made the decision to take her an emergency vet. She was treated for asthma and we were told to watch her like a hawk. She had a rough night and by the next morning her breathing was still very rapid (over 100 breathes a minute!) we then rushed her back to the ER vet and they noticed her heart was showing some issues. She was placed in an oxygen tank and hooked up to an IV for the night until we could take her to a cardiologist the next morning. The cardiologist performed an ultrasound and found that she has mild heart disease. They also suspected she threw a blood clot to her right front leg which caused the sudden episode of pain and rapid breathing. She was prescribed an anti-coagulant clopidogrol and sent home. Her breathing is much much better and she is finally eating. However it’s now been 48hours after her ultrasound and she is still not walking right. While her right front leg is still understandably disabled she is now having issues with her right back leg. She’s also having a hard time staying upright and is very wobbly. Wondering if anyone else’s cat has had similar symptoms post diagnosis and treatment.
Congestive Heart Failure Average Cost
From 474 quotes ranging from $200 - $3,000
Average Cost
$1,800
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