Interventional & Devices
Pericardiocentesis
A procedure to drain excess fluid from around the heart.
The heart sits inside a thin protective sac called the pericardium. When fluid builds up in that sac — from infection, inflammation, or other causes — it can press on the heart and prevent it from pumping properly, a medical emergency called cardiac tamponade. Pericardiocentesis uses a needle guided by ultrasound to safely drain that fluid and relieve the pressure, often bringing immediate relief.
How it works
An ultrasound scan confirms exactly where and how much fluid has collected.
A local anesthetic numbs the area, usually below the breastbone.
A needle, guided by live ultrasound, is carefully advanced into the fluid pocket and a thin tube may be left in place to fully drain it.
You're monitored closely as the fluid drains and pressure on the heart is relieved.
Frequently asked questions
Is pericardiocentesis an emergency procedure?+
It can be — when fluid buildup is severely affecting the heart's ability to pump (cardiac tamponade), it's performed urgently. It's also done in a planned setting for known, stable fluid buildup.
How is the fluid buildup detected in the first place?+
An echocardiogram (ECHO) is the primary way fluid around the heart is confirmed and measured before the procedure is planned.
Will the fluid come back after drainage?+
It depends on the underlying cause. Your cardiologist will investigate and treat the cause to reduce the chance of fluid reaccumulating.
This page is for general information and doesn't replace a medical consultation. Your cardiologist will confirm what's right for your specific case.