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Airway Manoeuvers - Implications for Airway Management?

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01679626
Recruitment Status : Completed
First Posted : September 6, 2012
Last Update Posted : September 7, 2012
Information provided by (Responsible Party):
Ralph Maassen, Catharina Ziekenhuis Eindhoven

Brief Summary:

In anesthesia, intubation is a technique used to secure an airway. This technique is not always straightforward. Sometimes it is difficult to place an endotracheal tube. There are two manners of giving pressure to the patients neck, to improve view and facilitate intubation.

The investigators hypothesize that by giving this pressure the effective work area is likely to be smaller. The investigators would like to quantify this effect by measuring the effective work area, using a specially designed computer program.

Condition or disease
Airway Management

Detailed Description:

Cricoid pressure (CP) and the backward-upward-rightward pressure (BURP) manoeuver, are extralaryngeal manoeuvers which are widely applied during endotracheal intubation, respectively offering potential protection against passive gastric regurgitation and improved laryngeal view in emergency airway management.

Their validity in achieving an improvement of the laryngeal view has been questioned.

The objective of this study is to measure the change in mean anterior-posterior rima glottidis (APRIMA) distance and mean area under the vocal cords after backward upward rightward pressure (BURP) and cricoid pressure (CP).

The investigators will measure the APRIMA distances and areas under the vocal cords, using a specially created module in the program DeVIDE. The measurements assessed during BURP and CP will be expressed relative to the measurements when no external pressure is applied.

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Study Type : Observational
Actual Enrollment : 200 participants
Official Title: The Effect of Cricoid Pressure and Backward Upward Rightward Pressure on Airway Dimensions - Implications for Airway Management?
Study Start Date : June 2011
Actual Primary Completion Date : July 2011
Actual Study Completion Date : July 2011

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
200 consecutive adult patients scheduled for elective surgery requiring endotracheal intubation.

Inclusion Criteria:

- 200 consecutive adult patients scheduled for elective surgery requiring endotracheal intubation

Exclusion Criteria:

  • BMI > 35 kg.m-2);
  • chronic obstructive pulmonary disease;
  • history of difficult intubation;
  • mouth opening < 3 cm;
  • inadequate neck mobility;
  • history of oropharyngeal pathology.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01679626

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Catharina Hospital
Eindhoven, Netherlands, 5623 EJ
Sponsors and Collaborators
Catharina Ziekenhuis Eindhoven
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Responsible Party: Ralph Maassen, MD, principal investigator, Catharina Ziekenhuis Eindhoven Identifier: NCT01679626    
Other Study ID Numbers: 2011-06
First Posted: September 6, 2012    Key Record Dates
Last Update Posted: September 7, 2012
Last Verified: September 2012
Keywords provided by Ralph Maassen, Catharina Ziekenhuis Eindhoven:
cricoid pressure (CP)
backward upward rightward pressure (BURP)
AP-rima distances
Glottic area
Extralaryngeal manoeuvres