Ultrasound evaluation of the impact of cricoid pressure versus novel "paralaryngeal pressure' on anteroposterior oesophageal diameter

作者：Andruszkiewicz P^*; Wojtczak J; Wroblewski L; Kaczor M; Sobczyk D; Kowalik I

来源：Anaesthesia, 2016, 71(9): 1024-1029.

DOI：10.1111/anae.13518

• anaesthesia
• cricoid pressure
• intubation
• regurgitation
• ultrasound

To assess the degree to which cricoid pressure (Sellick manoeuvre) actually compresses the oesophagus, we measured the effect of cricoid pressure and paralaryngeal pressure on the outer anteroposterior diameter of the upper oesophagus with ultrasound in 39 healthy volunteers. The mean (SD) outer anteroposterior oesophageal diameter was 0.77 (0.11)cm with no pressure, 0.79 (0.13)cm with the application of cricoid pressure of 30N and 0.68 (0.12)cm with the application of paralaryngeal pressure of 30N (p<0.0001). If cricoid pressure does not reduce the anteroposterior diameter of the oesophagus, it is difficult or impossible to explain the efficacy of the Sellick manoeuvre. However, paralaryngeal pressure decreases this diameter and has the potential to occlude the upper oesophagus.

• 出版日期2016-9