Cricoid Pressure Displaces the Esophagus: An Observational Study Using Magnetic Resonance Imaging

  title={Cricoid Pressure Displaces the Esophagus: An Observational Study Using Magnetic Resonance Imaging},
  author={Kevin J. Smith and J. Dobranowski and G. Yip and A. Dauphin and P. Choi},
Background Cricoid pressure (CP) is often used during general anesthesia induction to prevent passive regurgitation of gastric contents. The authors used magnetic resonance imaging to determine the anatomic relationship between the esophagus and the cricoid cartilage (“cricoid”) with and without CP. Methods Magnetic resonance images of the necks of 22 healthy volunteers were reviewed with and without CP. Esophageal and airway dimensions, distance between the midline of the vertebral body and… Expand

Paper Mentions

Interventional Clinical Trial
The primary objective is to study impact of upper airway ultrasonography in guiding anaesthetic assistant into providing accurate cricoid pressure, or both cricoid and… Expand
ConditionsUltrasonography, Interventional
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Effective application of cricoid pressure by an experienced operator frequently resulted in lateral deviation of the esophagus and incomplete occlusion of esophageal lumen. Expand
Cricoid cartilage and esophagus: CT scan study of the dynamic variability of their relative positions
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The location and movement of the esophagus is irrelevant to the efficiency of the Sellick’s maneuver (CP) in regard to prevention of gastric regurgitation into the pharynx and compression of the alimentary tract occurs with midline and lateral displacement of the cricoid cartilage relative to the underlying vertebral body. Expand
Ultrasound guided paralaryngeal pressure versus cricoid pressure on the occlusion of esophagus: a crossover study
Comparing the effectiveness of cricoid pressure (CP) and paralaryngeal pressure (PLP) on occlusion of eccentric esophagus in patients under general anesthesia (GA) and the prevalence of patients with central or eccentricEsophagus both before and after GA, and the success rate of CP in occluding centrally located esophagine in patients post GA. Expand
The Effectiveness of Cricoid Pressure for Occluding the Esophageal Entrance in Anesthetized and Paralyzed Patients: An Experimental and Observational Glidescope Study
The current study provides additional visual and mechanical evidence supporting a success rate of at least 95% by using a cricoid force of 30 N to occlude the esophageal entrance in anesthetized and paralyzed normal adult patients. Expand
Ultrasound Assessment of the Effectiveness of Cricoid Pressure
Background and AimsThe application of cricoid pressure (CP) during rapid sequence induction to prevent regurgitation of gastric contents has been questioned by many studies in the past decade. ThereExpand
In 1961 Sellick introduced the concept of cricoid pressure (CP) [1]. In his publication, he described the technique of using CP during induction of anaesthesia in 26 patients whom he considered atExpand
Ultrasound evaluation of cricoid pressure vs. ‘paralaryngeal pressure’ – a reply
References 1. Andruszkiewicz P, Wojtczak J, Wroblewski L, Kaczor M, Sobczyk D, Kowalik I. Ultrasound evaluation of the impact of cricoid pressure versus novel ‘paralaryngeal pressure’ onExpand


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