Fig. 1. A typical tracing showing lower esophageal sphincter pressure (LESP) and intragastric pressure (IGP) recordings before application of cricoid pressure (  A ), during application of cricoid pressure (  B ), after release of cricoid pressure (new baseline) (  C ), after administration of 0.15 mg/kg metoclopramide (  D ), during application of cricoid pressure (  E ), and after release of cricoid pressure (  F ). Paper speed = 1 mm/s.