Cricoid Pressure
Conditions
Keywords
Cricoid pressure, Rapid Sequence Induction
Brief summary
During emergency anesthesia (rapid sequence induction) , a firm pressure is applied to the cricoid cartilage of the patient in order to prevent passive regurgitation of gastric content into the pharynx. This maneuver is called cricoid pressure. Cricoid pressure is often performed incorrectly, due to difficulties to locate the cricoid cartilage in many patients. Despite this, the effectiveness of an incorrectly applied cricoid pressure has not been investigated. In this study we have used high-resolution manometry (HRM) to evaluate pressures in the upper esophagus during correctly applied cricoid pressure (against the cricoid cartilage) compared to incorrectly applied cricoid pressure (against the thyroid cartilage and against the trachea) during a rapid sequence induction.
Interventions
PROCEDURECricoid Pressure
Correct Cricoid pressure applied against the cricoid cartilage, Incorrect Cricoid pressure applied against the thyroid cartilage and trachea
Sponsors
Örebro University, Sweden
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
PREVENTION
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Elective surgery and Anesthesia with intubation, * ASA physical status I-II (American Society of Anesthesiologist classification system = system for assessing the fitness of cases before surgery) * Body Mass Index \> 18,5 and \< 30 * Informed, signed and dated consent
Exclusion criteria
* Suspected difficult airway, * Pharyngoesophageal dysfunction, * Body Mass Index \< 18,5 or \> 30,
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| difference in pressure (mmHg), detected by high resolution solid state manometry, between correctly vs incorrectly applied cricoid pressure | 15 sec. during ongoing cricoid pressure application |
Countries
Sweden
Outcome results
None listed