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What is Cardiac Arrest?

This condition can be reversed, but it requires immediate veterinary care to lower the risk of serious complications. Cardiac arrest can become fatal without prompt treatment from a veterinary professional.

Cardiac arrest in cats occurs when regular blood circulation stops, which causes the heart to stop beating. This can happen when cats are unable to breathe normally for several minutes. The respiratory system and cardiovascular system in cats normally work together to ensure regular blood circulation, a normal heart rate, normal breathing and healthy blood pressure levels. When the respiratory system is affected by illness or trauma, oxygen levels in the blood can drop low enough to lead to cardiac arrest. 

Cardiac Arrest Average Cost

From 555 quotes ranging from $800 - $5,000

Average Cost

$2,000

Symptoms of Cardiac Arrest in Cats

Cardiac arrest is considered a life-threatening emergency for cats, so it is important for owners to know the symptoms of it. Signs of this condition include:

  • Breathing heavily
  • Showing no response to stimulation
  • Losing consciousness
  • Having pupil dilation
  • Having bluish gums, skin and mucous membranes, which indicates dangerously low levels of oxygen in the bloodstream
  • Having a low body temperature, also known as hypothermia
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Causes of Cardiac Arrest in Cats

Cardiac arrest in cats can occur for a number of reasons. Possible causes of this condition include the following:

  • Oxygen levels in the blood that are too low
  • A low supply of oxygen
  • Heart disease
  • A metabolic disease
  • An electrolyte imbalance
  • Brain injuries
  • Low levels of bodily fluids
  • Blood poisoning from toxic bacteria in the bloodstream
  • Shock from trauma
  • Anesthesia for medical procedures
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Diagnosis of Cardiac Arrest in Cats

A prompt and accurate diagnosis of cardiac arrest in cats is important in order for veterinarians to treat it properly. A diagnosis includes providing a veterinarian with information on the cat’s medical history and details on when symptoms began to appear and what types of symptoms occurred. Owners should also tell a veterinarian any relevant details that might help explain why their cat went into cardiac arrest, such as an injury or possible exposure to toxic substances. This can help veterinarians treat or manage underlying conditions after they have restored cardiac function. Doing so can help stabilize cats and lower the risk of complications. 

Veterinarians typically do a physical exam that includes checking circulation and respiration for any abnormalities. This exam also involves regularly monitoring blood pressure and checking pulse rates. Veterinarians also perform tests to determine what is causing cardiac arrest. Common tests that are used include X-rays of the chest, blood samples to check the levels of oxygen and other gases, echocardiography to check for evidence of heart disease and a complete blood count. Other tests that are often done include a biochemistry profile and urine tests, which help veterinarians find out what might have led to cardiac arrest.

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Treatment of Cardiac Arrest in Cats

Since cardiac arrest in cats is an emergency, prompt veterinary care is required. Owners should bring cats to the nearest veterinary hospital or emergency clinic for treatment. 

Cardiopulmonary Resuscitation

Immediate medical care by veterinary professionals involves getting the heart to begin beating again and restoring its natural rhythm, as well as returning the cat’s respiration rate to normal. Veterinarians do this by clearing the airways and performing cardiopulmonary resuscitation. In some cases, veterinarians place a tube down the airways to help keep breathing regular. They might also administer oxygen to restore normal levels of this gas in the bloodstream. Medications that help support regular cardiac function are usually given to cats that are under cardiac arrest. 

Cardiac Massage and Compressions

Another method of restarting the heart involves performing cardiac massage on the chest, which is sometimes required in cats that have heart failure. When this is ineffective, veterinarians might perform chest compressions. These compressions involve pushing down on the chest rapidly to get the heart beating again. 

Open Chest Resuscitation

If cardiac massage and chest compressions are unsuccessful, veterinarians might make incisions in the chest in order to restart the heart. They might also inject medications into the heart to try to restore a heartbeat. 

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Recovery of Cardiac Arrest in Cats

Cardiac arrest in cats has a low recovery rate, although this depends in part on what caused this condition to occur and how soon treatment began. The type of treatment that was used can also have an impact on recovery. For example, cats typically require a longer time to recover after having open chest resuscitation. 

Cats usually have to stay in a veterinary hospital for the first few days after treatment to ensure that their condition stabilizes. During this time, veterinarians frequently check blood pressure, cardiac function and respiratory function. If any complications occur, these are treated promptly to help increase the chance of a successful recovery. Owners should bring their cats in for follow-up visits as often as needed. 

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Cardiac Arrest Average Cost

From 555 quotes ranging from $800 - $5,000

Average Cost

$2,000

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Cardiac Arrest Questions and Advice from Veterinary Professionals

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Domestic cat

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Six Years

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Unknown severity

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9 found helpful

pill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filled

Unknown severity

Has Symptoms

Lethargic And Wouldn’T Eat Or Drink

My cat had a urinary blockage. Well they said they unblocked it and he went into cardiac arrest and passed away. They said that they tried to do cpr. If they unblocked it what made him go into cardiac arrest?

Aug. 6, 2020

Owner

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Dr. Michele K. DVM

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9 Recommendations

Thank you for your question, and I am sorry for the loss of your cat. A urinary blockage, if left long enough, can cause fatal elevations in potassium. Potassium can affect the heart by causing an irregular rhythm, and arrest. I'm sure that they did everything they could.

Aug. 7, 2020

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Salem

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mixed

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2 Months

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Critical severity

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1 found helpful

pill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filled

Critical severity

Has Symptoms

Not Moving
Not Breathing
No Heart Beat

What do I do to keep her from having cardiac arrest again? She was completely dead. I gave her CPR and she jumped up and drank some water. Now she's really sleepy and is laying down very limp

July 2, 2018

Salem's Owner

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1 Recommendations

If Salem at this age appeared to have cardiac arrest, you should visit a Veterinarian for an examination to determine heart health as well as determining whether there is an underlying condition and if any medical management is required. Without examining Salem, I cannot give you any solid answers about a cause or a management plan. Regards Dr Callum Turner DVM

July 2, 2018

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Cardiac Arrest Average Cost

From 555 quotes ranging from $800 - $5,000

Average Cost

$2,000

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