What is the definitive treatment for a patient with a pericardial tamponade?

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Pericardial tamponade causes the heart to be unable to fill properly because fluid accumulates in the pericardial sac, raising intrapericardial pressure and reducing venous return and cardiac output. The key treatment is draining that fluid to relieve the pressure, which allows the heart to fill and pump effectively again. Draining the pericardial space—pericardiocentesis—directly addresses the underlying problem and rapidly stabilizes hemodynamics.

The other options don’t fix the root issue. Stenting targets a blocked coronary artery, not the fluid buildup around the heart. External chest compressions don’t remove the pericardial fluid and can be ineffective or even harmful when tamponade is present. Thrombolysis treats clots, not fluid accumulation, and can worsen bleeding risks without solving tamponade.