What is the recommended protocol for ACP during DHCA?

The recommended protocol for arterial cannulation and perfusion during deep hypothermic circulatory arrest (DHCA) is focused on providing adequate cerebral perfusion while minimizing blood flow to the rest of the body. The choice of 10-15 mL/kg/min with a target pressure of 50-70 mmHg is intended to ensure sufficient blood flow to vital organs, particularly the brain, during the period of circulatory arrest.

This protocol recognizes that during DHCA, maintaining a specific cerebral perfusion pressure is crucial to preventing neurological damage. The rate of 10-15 mL/kg/min helps match the metabolic demands of the organs, which are significantly lowered due to the hypothermic state. Plus, the targeted pressure range of 50-70 mmHg ensures that perfusion is effective without placing excessive stress on the vascular system, which is important given the altered hemodynamics associated with hypothermia.

In this context, it's vital to understand that different techniques for perfusion can be applied based on the patient's condition and clinical judgment; however, maintaining an adequate perfusion pressure and flow rate is essential for optimizing outcomes during DHCA.