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Laryngoscope Prototype Tested Against the Traditional Macintosh Blade

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified November 2006 by Herlev Hospital.
Recruitment status was:  Recruiting
Information provided by:
Herlev Hospital Identifier:
First received: September 18, 2006
Last updated: December 1, 2006
Last verified: November 2006
The primary objective is to evaluate a knewly developed blade (for intubating patients about to undergo surgery) and compare it to the traditional Macintosh blade

Condition Intervention
Anesthesia, Intravenous
Device: intubation of patients undergoing elective surgery

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single Blind
Primary Purpose: Prevention

Further study details as provided by Herlev Hospital:

Primary Outcome Measures:
  • succes rate - immediate evaluation
  • difficulty - immediate evaluation

Secondary Outcome Measures:
  • Cormack & Lehane grading
  • Time to intubate
  • Interincissor gap
  • vissible complication

Estimated Enrollment: 210
Study Start Date: January 2006
Detailed Description:

Intubation of patiens can be difficult, even impossible. It can result in different complications as damage to the teeth, lacerations of the mucosa, bleeding, fractures/luxations, hypoxia, hypercapnia, reflex bradycardia and in worst case braindamage and death.

The more difficult the intubation is the more frequent complicationrate. We believe to have developed a laryngoscopeblade that hopefully eases the intubationproces and thereby reduces the complicationrisk.

The patients included in this study is patients who are undergoing elective surgery requering intubation.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • age over 18
  • ASA 1-III
  • Patients undergoing elective surgery requering intubation at KAS Herlev

Exclusion Criteria:

  • Prior difficult intubation indicating awake fiberoptic intubation
  • pathology in the airways predicting difficult intubation
  • columna cervicalis fractures
  • pregnancy
  • Requirement for Rapid sequence induction
  Contacts and Locations
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Please refer to this study by its identifier: NCT00378170

Contact: Ulrik Grevstad, MD +4525348390
Contact: Ann Møller, MD +4544884488

KAS Herlev university Hospital Recruiting
Herlev, Denmark, 2730
Sponsors and Collaborators
Herlev Hospital
Study Director: Ann Møller, consultant
  More Information Identifier: NCT00378170     History of Changes
Other Study ID Numbers: Prototype vs Macintosh
Study First Received: September 18, 2006
Last Updated: December 1, 2006

Keywords provided by Herlev Hospital:
dental damage
complications processed this record on April 24, 2017