CONTEXT
Tracheal intubation using direct laryngoscopy(DL) is successful in the majority of patients, even when a line-of-sight view of the glottis is not possible. Poor glottic visualization is encountered between 1% and 9% of attempts.
This study was designed to determine the comparative effectiveness of the Videolaryngoscope compared with direct laryngoscopy in the predicted difficult airway. Our hypothesis was that using Vivid tracVideolaryngoscopy results in a higher intubation success compared with direct laryngoscopy in this challenging patient population.
Objectives of the study: a. Primary objective – Intubation success at first attempt
- Secondary objectives –
- Best Cormack-Lehane laryngeal view,
- laryngoscopy time,
- use of external laryngeal maneuver,
- arterial oxygen desaturation by pulse oximetry,
- airway-related complications.
Methodology
The data for study is collected from subjects fulfilling inclusion/exclusion criteria and inpatients .
Study design: A hospital based prospective, randomized, two parallel arm clinical study.
Results:
VDL(94%) has more intubation success rate at first attempt than DL(78.7%), Laryngoscopy time for VDL took 49.21 seconds whereas DL was 32.99 seconds. External maneuvers were used only for DL (5.3%) whereas VDL did not require any(0%); videolaryngoscope showed better Cormack lehane view.
Conclusion: A diverse group of anesthesia providers achieved a higher intubation success rate on first attempt with the Vividtrac in a broad range of patients with predictors of difficult intubation. Vividtrac laryngoscope offers a new approach to tracheal intubation of patients at increased risk for tracheal intubaton with lesser degree of hemodynamic stimulation compared to Macintosh laryngoscope.
Keywords: Difficult airway, Direct laryngoscopy, Vividtrac videolaryngoscopy.