Pericardiocentesis

In medicine, pericardiocentesis (PCC) is a procedure where fluid is aspirated from the pericardium (the sac enveloping the heart).

Position

The patient undergoing pericardiocentesis is positioned supine with the head of the bed raised to a 30- to 60-degree angle. This places the heart in proximity to the chest wall for easier insertion of the needle into the pericardial sac. Anatomically, the procedure is carried out under the xiphoid process, up and leftwards.

Process

It is generally done under ultrasound guidance, to minimize complications. There are two locations that pericardiocentesis can be performed without puncturing the lungs.

• The most standard location is through the infrasternal angle and is also called subxiphoid approach.
• Another location is through the 5th or 6th intercostal space at the left sternal border at the cardiac notch of the left lung and is also called as parasternal approach.

Indications

Indications include cardiac tamponade, as well as the need to analyze the fluid surrounding the heart. Cardiac tamponade is a condition in which an accumulation of fluid within the pericardium (pericardial effusion) creates excessive pressure, which then prevents the heart from filling normally with blood. This can critically decrease the amount of blood that is pumped from the heart, which can be lethal. The removal of the excess fluid reverses this dangerous process. Examples of the need for fluid analysis would be to differentiate whether a fluid collection within the pericardium is due to an infection, spread of cancer, or possibly an autoimmune condition.

Similar procedures

In cases where longer term drainage is needed, the cardiothoracic surgeon can create a pericardial window. This involves the removal of a section of the pericardium, and the placement of a chest tube.

External links

• MedlinePlus Encyclopedia: 003872
• med/3560 at eMedicine
• Trauma Man: Images of pericardiocentesis being performed on a simulator
• Cardiac Surgery in the Adult: Pericardial disease

Pericardiocentesis Resources
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