What emergency procedure is indicated for cardiac tamponade causing arrest?

What emergency procedure is indicated for cardiac tamponade causing arrest?

• A. Immediate pericardiocentesis
• B. Thoracotomy
• C. Chest tube insertion
• D. Pleurocentesis

Answer: (A)

Relieving the pressure on the heart by draining the fluid from the pericardial sac is the immediate priority when tamponade leads to arrest. The fluid buildup compresses the heart, especially during diastole, preventing chambers from filling and cutting off effective pumping. Pericardiocentesis accesses the pericardial space—usually via a subxiphoid approach with ultrasound guidance—and quickly removes fluid, decompressing the pericardium. This restoration of filling can restore blood flow and improve the chance of returning spontaneous circulation, which is crucial during resuscitation. The other options don’t address the problem. A chest tube drains the pleural space and won’t relieve pericardial pressure. Pleurocentesis likewise targets the pleura, not the pericardium. Thoracotomy is a more invasive option used in select trauma scenarios or when pericardiocentesis isn’t available or has failed; it’s not the immediate action to relieve tamponade during arrest.

Relieving the pressure on the heart by draining the fluid from the pericardial sac is the immediate priority when tamponade leads to arrest. The fluid buildup compresses the heart, especially during diastole, preventing chambers from filling and cutting off effective pumping. Pericardiocentesis accesses the pericardial space—usually via a subxiphoid approach with ultrasound guidance—and quickly removes fluid, decompressing the pericardium. This restoration of filling can restore blood flow and improve the chance of returning spontaneous circulation, which is crucial during resuscitation.

The other options don’t address the problem. A chest tube drains the pleural space and won’t relieve pericardial pressure. Pleurocentesis likewise targets the pleura, not the pericardium. Thoracotomy is a more invasive option used in select trauma scenarios or when pericardiocentesis isn’t available or has failed; it’s not the immediate action to relieve tamponade during arrest.