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surgical puncture or incision of the heart.
cardiocentesis/car·dio·cen·te·sis/ (kahr″de-o-sen-te´sis) surgical puncture of the heart.
Surgical puncture to withdraw fluid from the pericardial space.
surgical puncture into the pericardial space and aspiration of fluid for therapeutic or diagnostic purposes. Therapeutically, the procedure is used as an emergency measure to relieve life-threatening cardiac tamponade. Other clinical situations in which cardiocentesis may be employed include pericardial effusion, traumatic perforation or rupture of the myocardium, and effusion secondary to a tumor or thoracic injury.