In a patient with suspected tamponade, what is the field treatment approach?

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In suspected tamponade, the problem is the heart being squeezed by fluid in the pericardial sac, which prevents proper filling and reduces cardiac output. The definitive treatment is to drain that fluid, which is done in a hospital setting with the appropriate equipment and imaging guidance. There isn’t a safe, effective field procedure to relieve the pressure, so the field approach is to provide supportive care and get the patient to definitive care as quickly as possible. Needle decompression is reserved for tension pneumothorax, not tamponade, so it doesn’t apply here. Defibrillation targets arrhythmias, not the mechanical problem of the tamponade, and sodium bicarbonate has no role in treating tamponade. Therefore the best field course is rapid transport with supportive measures, and pericardiocentesis should be performed in the ED.