The pericardial sac surrounds the heart. It normally contains a small amount of fluid. Pericardiocentesis is the withdrawal of fluid from this sac with a needle.
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Pericardiocentesis may be used as a treatment. If too much fluid builds up in the sac, this can put extra pressure on the heart. This is known as cardiac tamponade. It is a life-threatening condition. Withdrawing some of the fluid will help to relieve the pressure on the heart.
Pericardiocentesis may also be used to diagnose the cause of fluid buildup. Fluid buildup is known as pericardial effusion. The buildup can be caused by an infection, cancer, trauma, autoimmune disorders, or drug use. It may also indicate the presence of rheumatoid arthritis, heart attack, or kidney failure.
Last reviewedNovember 2012by Michael J. Fucci, DO
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.