Effect of Paratracheal Pressure on the Glottic View During Direct Laryngoscopy: A Randomized Double-Blind, Noninferiority Trial

Author(s):  
Dongwook Won ◽  
Hyerim Kim ◽  
Jee-Eun Chang ◽  
Jung-Man Lee ◽  
Seong-Won Min ◽  
...  
2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Tomasz Gaszynski ◽  
Monika Pietrzyk ◽  
Tomasz Szewczyk ◽  
Ewelina Gaszynska

Introduction.The use of videolaryngoscopes is recommended for morbidly obese patients. The aim of the study was to evaluate the Levitan FPS optical stylet (Levitan) vs Lafy-Flex videolaryngoscope (Lary-Flex) in a group of MO patients.Methods.Seventy-nine MO (BMI>40 kg m−2) patients scheduled for bariatric surgery were included in the study and randomly allocated to the Levitan FPS or Lary-Flex group. The primary endpoint was time to intubation and evaluation laryngoscopic of glottic view. Anesthesiologists were asked to evaluate the glottic view first under direct laryngoscopy using the videolaryngoscope as a standard laryngoscope (monitor display was excluded from use) and then using devices. The secondary endpoint was the cardiovascular response to intubation and the participant’s evaluation of such devices.Results.The time to intubation was8.572.66 sec. versus5.790.2 sec. for Levitan and Lary-Flex, respectively (P<0.05). In all cases of CL grade>1under direct laryngoscopy, the study devices improved CL grade to 1. The Levitan FPS produced a greater cardiovascular response than the Lary-Flex videolaryngoscope.Conclusion.The Lary-Flex videolaryngoscope and the Levitan FPS optical stylet improve the laryngeal visualization in morbidly obese patients, allowing for fast endotracheal intubation, but Lary-Flex produces less cardiovascular response to intubation attempt.


2012 ◽  
Vol 28 (1) ◽  
pp. 20-28 ◽  
Author(s):  
Bruno Riou ◽  
Patrick Plaisance ◽  
François Lecomte ◽  
Louis Soulat ◽  
Philippe Orcel ◽  
...  

2020 ◽  
Author(s):  
Joachim Risse ◽  
Christian Volberg ◽  
Thomas Kratz ◽  
Birgit Plöger ◽  
Andreas Jerrentrup ◽  
...  

Abstract Background:Videolaryngoscopy (VL) has become a popular method of intubation (ETI). Although VL may facilitate ETI in less-experienced rescuers there are limited data available concerning ETI performed by paramedics during CPR. The goal was to evaluate the impact VL compared with DL on intubation success and glottic view during CPR performed by German paramedics. We investigated in an observational prospective study the superiority of VL by paramedics during CPR compared with direct laryngoscopy (DL). Methods:In a single Emergency Medical Service (EMS) in Germanywith in total 32 ambulances paramedics underwent an initial instruction from in endotracheal intubation (ETI) with GlideScope® (GVL) during resuscitation. The primary endpoint was good visibility of the glottis (Cormack-Lehane grading 1/2), and the secondary endpoint was successful intubation comparing GVL and DL. Results: In total n = 97 patients were included, n = 69 with DL (n = 85 intubation attempts) and n = 28 VL (n = 37 intubation attempts). Videolaryngoscopy resulted in a significantly improved visualization of the larynx compared with DL. In the group using GVL, 82% rated visualization of the glottis as CL 1&2 versus 55% in the DL group (p = 0.02). Despite better visualization of the larynx, there was no statistically significant difference in successful ETI between GVL and DL (GVL 75% vs. DL 68.1%, p = 0.63). Conclusions: We found no difference in Overall and First Pass Success (FPS) between GVL and DL during CPR by German paramedics despite better glottic visualization with GVL. Therefore, we conclude that education in VL should also focus on insertion of the endotracheal tube, considering the different procedures of GVL.


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