What is the purpose of applying cricoid pressure during certain medical procedures?

Applying cricoid pressure is primarily aimed at preventing aspiration during procedures, particularly when a patient is under general anesthesia. By applying pressure to the cricoid cartilage, the esophagus is compressed against the vertebral column, effectively sealing it off. This maneuver helps to minimize the risk of stomach contents entering the airway, which can occur if the patient has not fasted or if there is a failure in the protective airway reflexes.

While facilitating intubation is a goal during airway management, cricoid pressure itself does not directly ensure easier intubation; it primarily serves the aspiration prevention purpose. Moreover, cricoid pressure is not intended to control bleeding or reduce pain, as those interventions require different techniques or medications. Thus, the function of cricoid pressure is specifically aligned with maintaining a clear airway and protecting against aspiration risks during procedures.