Clinical Trials Logo

Clinical Trial Summary

The purpose of this study is to evaluate a disposable fiberscope (Ambu ® aScope®) for tracheal intubation in difficult airways due to cervical immobilization by a cervical collar, and compare it to a conventional reusable fiberscope.


Clinical Trial Description

Any general anesthesia requiring tracheal intubation for controlled ventilation includes the likelihood of intubation failure and, in case of difficult or impossible mask ventilation, can be life-threatening. In patients with diagnosed or suspected disease of the cervical spine, airway control can be tricky. Indeed, the cervical collar used to secure the cervical spine makes direct laryngoscopy impossible. In elective surgery, the most commonly used technique is fiberoptic intubation, achievable without removing of the cervical collar.

A new disposable fiberscope was recently developed by Ambu ®: the aScope®. It consists of a disposable flexible fiberscopic device, whose distal end is fitted with a camera that can be directed. This device is connected to a separate reusable LCD display. The aScope® is used as a conventional flexible fiberscope to guide the instrumentation of the airway.

With the exception of case reports, all studies of this device in difficult conditions were performed on mannequins.

The investigators propose to assess and validate this device on real patients with difficult airways caused by a rigid cervical collar and compare intubation conditions and time to the gold standard technique, the classical reusable fiberscope.

Induction of general anesthesia is performed by the anesthesiologist responsible for the patient, according to the standards in the anesthesiology department.

The cervical collar is fitted and positioned once the patient is asleep in addition to a dedicated oropharyngeal cannula (Ovassapian fiberoptic intubating airway cannula) in order to guide the aScope® or fiberscope in the oropharynx. The timer is activated once the investigating physician takes the aScope® or fiberscope in his hands. The device is advanced into the airway with visual control on the LCD screen for the aScope® or on an external dedicated screen for the fiberscope. Once in the trachea, the device will serve as a guide for introduction of the orotracheal tube, according to standard fiberscopic intubation technique. Tracheal intubation is confirmed through visualization of the distal end of the tube into the trachea, the onset of an end tidal CO2 curve and auscultation. The timer will be stopped at the onset of the end tidal CO2 curve. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT01467739
Study type Interventional
Source University of Lausanne Hospitals
Contact
Status Completed
Phase N/A
Start date June 2011
Completion date November 2011

See also
  Status Clinical Trial Phase
Completed NCT06089187 - Comparing Endotracheal Tube Cuff Pressure in Laparoscopic Abdominal Surgery: Saline vs. Air Inflation N/A
Completed NCT02395445 - A Comparison of Tracheal Intubation Using the Totaltrack vs the Macintosh Laryngoscope in Routine Airway Management N/A
Completed NCT02395432 - A Comparison of Tracheal Intubation Using the Totaltrack vs the Macintosh Laryngoscope in Difficult Airway N/A
Unknown status NCT01041066 - Nicardipine Versus Labetalol During Intubation N/A
Completed NCT03284892 - Screening and Intervention of Postextubation Dysphagia N/A
Recruiting NCT02395406 - A Comparison of Tracheal Intubation Using the Totaltrack vs the Airtraq Laryngoscope in Difficult Airway Management N/A
Recruiting NCT02395419 - A Comparison of Tracheal Intubation Using the Totaltrack vs the Airtraq Laryngoscope in Routine Airway Management N/A
Enrolling by invitation NCT02277015 - Intubation During Pediatric Resuscitation N/A
Completed NCT01169467 - Cerebral Perfusion Pressure Using Precedex and Other Sedatives Phase 3
Completed NCT00620386 - Endotracheal Intubation Using Bonfils Fibrescope Without Neuromuscular Blockade Phase 2/Phase 3
Completed NCT05069844 - Preoperative Gum Chewing for Different Durations to Prevent Sore Throat After Endotracheal Intubation N/A
Enrolling by invitation NCT05620108 - Intubating Conditions of Neuromuscular Blockade N/A
Completed NCT02741921 - Conventional Double-lumen Tube vs VivaSight DL N/A
Recruiting NCT02295657 - Double Lumen Tube Intubation N/A
Completed NCT01488370 - Comparison of 2 Laryngoscopes for Endotracheal Intubation in Children Younger Than 2 Years Old N/A
Recruiting NCT01006668 - Sevoflurane Versus Propofol for Intubation in Neonatal Intensive Care Phase 3
Recruiting NCT04483895 - Comparison Between the Oro-Helical Length Technique and the 7-8-9 Rule in Determination of the Ideal Endotracheal Tube Insertion Depth in Neonates N/A
Completed NCT04141267 - Inhaled Sedation Using the Anesthetic-conserving Device ( ANACONDA) in Prehospital Emergency Medecine.
Completed NCT01490580 - Premedication Trial for Tracheal Intubation of the NEOnate Phase 2/Phase 3
Completed NCT03878797 - The Depth of Endotracheal Tube Insertion