Definition

Cardiac tamponade occurs when fluid builds up between the heart muscle and the surrounding tissue (called the pericardium). This fluid compresses the heart. Because of this, enough blood cannot be pumped in and out of the heart.

This condition can be life-threatening. With proper treatment, prognosis is good. Cardiac tamponade can recur after treatment, though.

Cardiac Tamponade

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Causes

Cardiac tamponade can be caused by a variety of factors and conditions, including:

• Pericarditis]]> (an inflammation of the sac that surrounds the heart) caused by bacterial or viral infections
• Bleeding into the pericardium, caused by injury
• Ruptured heart muscle
• Cancer in or near the heart

Risk Factors

These factors increase your chance of developing this condition. Tell your doctor if you have any of these risk factors:

• Heart surgery
• Tumors in the heart
• Heart attack]]>
• Injury to the heart
• ]]>End-stage lung cancer]]>
• ]]>Kidney failure]]>
• ]]>Radiation therapy]]> to the chest
• ]]>Hypothyroidism]]>
• ]]>Systemic lupus erythematosus]]>

Symptoms

Symptoms vary from mild to severe. They typically include one or more of the following:

• Fatigue or drowsiness
• Shortness of breath, rapid breathing, or difficulty breathing
• Dizziness or light-headedness
• Chest pain
  • That extends to the neck, shoulders, or abdomen
  • Sharp or stabbing pain
  • Pain that is worsened by coughing or deep breathing
• Discomfort that can be relieved by sitting upright or leaning forward
• Swelling of the abdomen, veins in the arms or legs, or other areas
• Pale skin, or skin that is blue- or gray-tinted
• Rapid heartbeat
• Anxiety]]> or restlessness
• Low blood pressure
• Fainting
• Feeling of weakness
• General malaise

Diagnosis

Your doctor will ask about your symptoms and medical history. You will also be examined. If you have a significant change in blood pressure between breaths, this is one way your doctor will diagnose this condition.

The following tests are also used for diagnosis:

• Echocardiogram]]> —a test that uses high-frequency sound waves (ultrasound) to examine the size, shape, and motion of the heart. This is the primary test used to diagnose and manage cardiac tamponade.
• ]]>Cardiac catheterization]]> —a tube-like instrument inserted into the heart through a vein or artery (usually in the arm or leg) to detect problems with the heart and its blood supply
• ]]>Chest x-ray]]> —a test that uses radiation to take a picture of structures inside the body, especially bones
• ]]>CT scan]]> —a type of x-ray that uses a computer to make pictures of structures inside the chest
• ]]>MRI scan]]> —a test that uses magnetic waves to make pictures of structures inside the chest
• ]]>Coronary angiography]]> —x-rays taken after a dye is injected into the arteries; allows the doctor to look for abnormalities in the arteries
• ]]>Electrocardiogram (ECG, EKG)]]> —a test that records the heart’s activity by measuring electrical currents through the heart muscle

Treatment

This is a serious condition. It can be life-threatening and requires immediate hospitalization and treatment.

Treatments are administered to:

• Save the patient's life
• Improve heart function
• Relieve symptoms

Treatments that are administered for cardiac tamponade include:

• Pericardiocentesis]]> —a procedure to drain the fluid around the heart
• Fluids to maintain normal blood pressure
• Antibiotics
• Medications to help increase blood pressure to normal levels
• Oxygen to reduce workload on the heart
• Surgery to remove or cut part of the pericardium

If you are diagnosed with cardiac tamponade, follow your doctor's instructions.

Prevention

This condition usually cannot be prevented. However, understanding the risk factors can aid in prevention.