scholarly journals Comparison of Standard Polyvinyl Chloride Tracheal Tubes and Straight Reinforced Tracheal Tubes for Tracheal Intubation through Different Sizes of the Airtraq Laryngoscope in Anesthetized and Paralyzed Patients

2009 ◽  
Vol 111 (6) ◽  
pp. 1265-1270 ◽  
Author(s):  
Vassilios K. Dimitriou ◽  
Ioannis D. Zogogiannis ◽  
Amalia K. Douma ◽  
Nikolaos D. Pentilas ◽  
Despoina G. Liotiri ◽  
...  
Keyword(s):  
Tracheal Intubation ◽  
Polyvinyl Chloride ◽  
Odds Ratio ◽  
Successful Intubation ◽  
Success Rates ◽  
Tube Size ◽  
Straight Wire ◽  
Intubation Success ◽  
Intubation Success Rate ◽  
Tube Type

Background The authors compared the intubation success rate of straight reinforced tracheal tubes emerging from the Airtraq laryngoscope (Prodol Meditec S.A., Vizcaya, Spain) with standard preformed polyvinyl chloride tracheal tubes in anesthetized patients. Methods The authors randomly allocated 347 adult patients to be intubated with standard polyvinyl chloride tracheal tubes, standard straight wire-reinforced tracheal tubes, or silicone straight wire-reinforced tubes, through either the larger or the smaller adult laryngoscope sizes. The possible influence of laryngoscope size, tube size, and tube type on intubation failure was examined. Results Success rates were 100% for polyvinyl chloride tracheal tubes, 78.5% for standard wire-reinforced tracheal tubes, and 75.4% for silicone wire-reinforced tubes (P < 0.01). Compared with the former, patients in the straight standard and silicone wire-reinforced tube groups required more optimization maneuvers (4.1% vs. 42.1%; P < 0.01) and more attempts at successful intubation (0% vs. 7.3%; P < 0.01). The angle created by the tube emerging from the Airtraq guiding channel was inversely correlated to the ratio of the endotracheal tube OD to the width of the channel in the standard and silicone wire-reinforced tube groups (r = -0.95 and r = -0.82, respectively; P < 0.01). Finally, a decrease in 0.1 of the above ratio was associated with a 3.1 (95% confidence interval, 1.9-5.2; P < 0.01) times increase in the odds ratio of intubation failure. Conclusions Standard polyvinyl chloride tracheal tubes were found to be superior compared with standard and silicone straight wire-reinforced tubes for intubation through the Airtraq laryngoscope. In the latter groups, a decrease of the ratio of their OD to the width of the Airtraq guiding channel resulted in increased intubation failure.

scholarly journals Comparative Effectiveness of the C-MAC Video Laryngoscope versus  Direct Laryngoscopy in the Setting of the Predicted Difficult Airway

2012 ◽  
Vol 116 (3) ◽  
pp. 629-636 ◽  
Author(s):  
Michael F. Aziz ◽  
Dawn Dillman ◽  
Rongwei Fu ◽  
Ansgar M. Brambrink
Keyword(s):  
Tracheal Intubation ◽  
Difficult Airway ◽  
Difficult Intubation ◽  
Direct Laryngoscopy ◽  
Controlled Trial ◽  
Video Laryngoscope ◽  
Video Laryngoscopy ◽  
Success Rates ◽  
Intubation Success ◽  
Intubation Success Rate

Background Video laryngoscopy may be useful in the setting of the difficult airway, but it remains unclear if intubation success is improved in routine difficult airway management. This study compared success rates for tracheal intubation with the C-MAC® video laryngoscope (Karl Storz, Tuttlingen, Germany) with conventional direct laryngoscopy in patients with predicted difficult airway. Methods We conducted a two arm, single-blinded randomized controlled trial that involved 300 patients. Inclusion required at least one of four predictors of difficult intubation. The primary outcome was successful tracheal intubation on first attempt. Results The use of video laryngoscopy resulted in more successful intubations on first attempt (138/149; 93%) as compared with direct laryngoscopy (124/147; 84%), P = 0.026. Cormack-Lehane laryngeal view was graded I or II in 139/149 of C-MAC attempts versus 119/147 in direct laryngoscopy attempts (P < 0.01). Laryngoscopy time averaged 46 s (95% CI, 40-51) for the C-MAC group and was shorter in the direct laryngoscopy group, 33 s (95% CI, 29-36), P < 0.001. The use of a gum-elastic bougie and/or external laryngeal manipulation were required less often in the C-MAC intubations (24%, 33/138) compared with direct laryngoscopy (37%, 46/124, P = 0.020). The incidence of complications was not significantly different between the C-MAC (20%, 27/138) versus direct laryngoscopy (13%, 16/124, P = 0.146). Conclusion A diverse group of anesthesia providers achieved a higher intubation success rate on first attempt with the C-MAC in a broad range of patients with predictors of difficult intubation. C-MAC laryngoscopy seems to be a useful technique for the initial approach to a potentially difficult airway.

scholarly journals Comparison of Direct and Indirect Laryngoscopes in Vomitus and Hematemesis Settings: A Randomized Simulation Trial

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Ryosuke Mihara ◽  
Nobuyasu Komasawa ◽  
Sayuri Matsunami ◽  
Toshiaki Minami
Keyword(s):  
Tracheal Intubation ◽  
Success Rate ◽  
Macintosh Laryngoscope ◽  
Intubation Time ◽  
Direct Laryngoscope ◽  
Mcgrath Mac ◽  
Significant Difference ◽  
Intubation Success ◽  
Intubation Success Rate

Background.Videolaryngoscopes may not be useful in the presence of hematemesis or vomitus. We compared the utility of the Macintosh laryngoscope (McL), which is a direct laryngoscope, with that of the Pentax-AWS Airwayscope (AWS) and McGRATH MAC (McGRATH), which are videolaryngoscopes, in simulated hematemesis and vomitus settings.Methods.Seventeen anesthesiologists with more than 1 year of experience performed tracheal intubation on an adult manikin using McL, AWS, and McGRATH under normal, hematemesis, and vomitus simulations.Results.In the normal setting, the intubation success rate was 100% for all three laryngoscopes. In the hematemesis settings, the intubation success rate differed significantly among the three laryngoscopes (P=0.021). In the vomitus settings, all participants succeeded in tracheal intubation with McL or McGRATH, while five failed in the AWS trial with significant difference (P=0.003). The intubation time did not significantly differ in normal settings, while it was significantly longer in the AWS trial compared to McL or McGRATH trial in the hematemesis or vomitus settings (P<0.001, compared to McL or McGRATH in both settings).Conclusion.The performance of McGRATH and McL can be superior to that of AWS for tracheal intubation in vomitus and hematemesis settings in adults.

scholarly journals Comparison of GlideScope Videolaryngoscopy to Direct Laryngoscopy for Intubation of a Pediatric Simulator by Novice Physicians

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Joni E. Rabiner ◽  
Marc Auerbach ◽  
Jeffrey R. Avner ◽  
Dina Daswani ◽  
Hnin Khine
Keyword(s):  
Crossover Study ◽  
Difficult Airway ◽  
Direct Laryngoscopy ◽  
Successful Intubation ◽  
Success Rates ◽  
Normal Airway ◽  
Intubation Success ◽  
Mean Time ◽  
Randomized Crossover Study

Objective. To compare novice clinicians’ performance using GlideScope videolaryngoscopy (GVL) to direct laryngoscopy (DL).Methods. This was a prospective, randomized crossover study. Incoming pediatric interns intubated pediatric simulators in four normal and difficult airway scenarios with GVL and DL. Primary outcomes included time to intubation and rate of successful intubation. Interns rated their satisfaction of the devices and chose the preferred device.Results. Twenty-five interns were included. In the normal airway scenario, there were no differences in mean time for intubation with GVL or DL (61.4 versus 67.4 seconds, ) or number of successful intubations (19 versus 18, ). In the difficult airway scenario, interns took longer to intubate with GVL than DL (87.7 versus 61.3 seconds, ), but there were no differences in successful intubations (14 versus 15, ). There was a trend towards higher satisfaction for GVL than DL (7.3 versus 6.4, ), and GVL was chosen as the preferred device by a majority of interns (17/25, 68%).Conclusions. For novice clinicians, GVL does not improve time to intubation or intubation success rates in a pediatric simulator model of normal and difficult airway scenarios. Still, these novice clinicians overall preferred GVL.

scholarly journals Effectivity battle between C-MAC and McGrath® video laryngoscope in a patient with general anesthesia at Sanglah Hospital: A pilot study

2021 ◽  
Vol 4 (2) ◽  
pp. 47-50
Author(s):  
Jhoni Pardomuan Pasaribu ◽  
Tjokorda Gde Agung Senapathi ◽  
Pontisomaya Parami
Keyword(s):  
Pilot Study ◽  
Tracheal Intubation ◽  
General Anesthesia ◽  
Video Laryngoscope ◽  
Hemodynamic Change ◽  
Successful Intubation ◽  
Success Rates ◽  
Physical Status ◽  
Hemodynamic Stability ◽  
Pros And Cons

Background: Intubation is a common essential procedure to maintain the airway during general anesthesia. Various video laryngoscopes (VL) on the market today assist anesthesiologists in improving intubation success rates and also in complicated airway cases. There are two types of VL found in our institution, which are C-MAC and McGrath®. Each of them has its pros and cons, which withdrawn our curiosity to compare their effectiveness.  Methods: A pilot study was conducted in our center; we included all patients undergoing general anesthesia with physical status ASA I-III and consent to the study and divide them into two groups, C-MAC and McGrath®. We compare C-MAC and McGrath® VL effectiveness in terms of time for intubation, ease of intubation, total attempt, failure to intubate, Cormack Lehane degree, POGO Score, and hemodynamic stability.  Results: A total of 20 patients were intubated with two different VL, ten patients for each group. Both VLs accommodate ease of intubation, and overall first attempt successful intubation, though C-MAC showed better laryngeal and glottic visualization, shorter tracheal intubation times, and less hemodynamic change. Conclusion: C-MAC gives better results in laryngeal and glottic visualization, shorter tracheal intubation times, and less hemodynamic change.

Intubating Through Supraglottic Airway Devices: A Narrative Review

2021 ◽  
Vol 11 (3) ◽  
Author(s):  
Say Yang Ong ◽  
Vanessa Moll ◽  
Berthold Moser ◽  
Amit Prabhakar ◽  
Elyse M. Cornett ◽  
...  
Keyword(s):  
Tracheal Intubation ◽  
Endotracheal Tube ◽  
Airway Device ◽  
Narrative Review ◽  
Supraglottic Airway ◽  
Successful Intubation ◽  
Success Rates ◽  
Supraglottic Airway Device ◽  
Supraglottic Airway Devices ◽  
Consistent Performance

Implication Statement: Despite the increasing popularity of video laryngoscopes, the supraglottic airway device (SAD) remains a critical airway rescue tool. The SAD provides a conduit for tracheal intubation in failed laryngoscopy. This article aims to help the operator: (1) select an intubating SAD with consistent performance; (2) inform the appropriate SAD-endotracheal tube pairings; and (3) explain various SAD and endotracheal tube maneuvers available to increase chances of successful intubation. Objectives: The first supraglottic airway device (SAD) was introduced more than thirty years ago. Since then, SADs have undergone multiple iterations and improvements. The SAD remains an airway rescue device for ventilation and an intubation conduit on difficult airway algorithms. Data Sources: Several SADs are specifically designed to facilitate tracheal intubation, i.e., “intubating SADs,” while most are “non-intubating SADs.” The two most commonly reported tracheal intubation methods via the SADs are the blind and visualized passage of the endotracheal tube (ETT) preloaded on a fiberoptic scope. Fiberoptic guided tracheal intubation (FOI) via an intubating SAD generally has higher success rates than blind intubations and is thus preferred. However, fiberscopes might not always be readily available, and anesthesiologists should be skilled to successfully intubate blindly through a SAD. Summery: This narrative review describes intubating SAD with consistent performance, appropriate SAD-ETT pairings, and various SAD and ETT maneuvers to increase successful intubation chances.

scholarly journals Utility of a Gum-Elastic Bougie for Difficult Airway Management in Infants: A Simulation-Based Crossover Analysis

2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Nobuyasu Komasawa ◽  
Akira Hyoda ◽  
Sayuri Matsunami ◽  
Nozomi Majima ◽  
Toshiaki Minami
Keyword(s):  
Tracheal Intubation ◽  
Airway Management ◽  
Success Rate ◽  
Difficult Airway Management ◽  
Intubation Time ◽  
Simulation Based ◽  
Intubation Success ◽  
Intubation Success Rate ◽  
Crossover Analysis ◽  
Airway Model

Background.Direct laryngoscopy with the Miller laryngoscope (Mil) for infant tracheal intubation is often difficult to use even for skilled professionals. We performed a simulation trial evaluating the utility of a tracheal tube introducer (gum-elastic bougie (GEB)) in a simulated, difficult infant airway model. Methods.Fifteen anesthesiologists performed tracheal intubation on an infant manikin at three different degrees of difficulty (normal [Cormack-Lehane grades (Cormack) 1-2], cervical stabilization [Cormack 2-3], and anteflexion [Cormack 3-4]) with or without a GEB, intubation success rate, and intubation time.Results.In the normal and cervical stabilization trials, all intubation attempts were successful regardless of whether or not the GEB was used. In contrast, only one participant succeeded in tracheal intubation without the GEB in the anteflexion trial; the success rate significantly improved with the GEB (P=0.005). Intubation time did not significantly change under the normal trial with or without the GEB (without, 12.7 ± 3.8 seconds; with, 13.4 ± 3.6 seconds) but was significantly shorter in the cervical stabilization and anteflexion trials with the GEB.Conclusion.GEB use shortened the intubation time and improved the success rate of difficult infant tracheal intubation by anesthesiologists in simulations.

scholarly journals Intubation Success through I-Gel® and Intubating Laryngeal Mask Airway® Using Flexible Silicone Tubes: A Randomised Noninferiority Trial

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Latha Naik ◽  
Neerja Bhardwaj ◽  
Indu Mohini Sen ◽  
Rakesh V. Sondekoppam
Keyword(s):  
Success Rate ◽  
Successful Intubation ◽  
Improve Performance ◽  
Elective Surgical Procedures ◽  
Intubating Laryngeal Mask Airway ◽  
Intubation Success ◽  
First Pass ◽  
Registration Number ◽  
Intubation Success Rate ◽  
Secondary Outcomes

Introduction. The study aims to test whether flexible silicone tubes (FST) improve performance and provide similar intubation success through I-Gel as compared to ILMA. Our trial is registered in CTRI and the registration number is “CTRI/2016/06/006997.”Methods. One hundred and twenty ASA status I-II patients scheduled for elective surgical procedures needing tracheal intubation were randomised to endotracheal intubation using FST through either I-Gel or ILMA. In the ILMA group (n=60), intubation was attempted through ILMA using FST and, in the I-Gel group (n=60), FST was inserted through I-Gel airway.Results. Successful intubation was achieved in 36.67% (95% CI 24.48%–48.86%) on first attempt through I-Gel (n=22/60) compared to 68.33% (95% CI 56.56%–80.1%) in ILMA (n=41/60) (p=0.001). The overall intubation success rate was also lower with I-Gel group [58.3% (95% CI 45.82%–70.78%);n=35] compared to ILMA [90% (95% CI 82.41%–97.59%);n=54] (p<0.001). The number of attempts, ease of intubation, and time to intubation were longer with I-Gel compared to ILMA. There were no differences in the other secondary outcomes.Conclusion. The first pass success rate and overall success of FST through an I-Gel airway were inferior to those of ILMA.

Success of Intubation Rescue Techniques after Failed Direct Laryngoscopy in Adults

2016 ◽  
Vol 125 (4) ◽  
pp. 656-666 ◽  
Author(s):  
Michael F. Aziz ◽  
Ansgar M. Brambrink ◽  
David W. Healy ◽  
Amy Wen Willett ◽  
Amy Shanks ◽  
...  
Keyword(s):  
Tracheal Intubation ◽  
Success Rate ◽  
Direct Laryngoscopy ◽  
Video Laryngoscopy ◽  
Perioperative Outcomes ◽  
Supraglottic Airway ◽  
Fiberoptic Intubation ◽  
Success Rates ◽  
Intubation Success Rate ◽  
Lighted Stylet

Abstract Background Multiple attempts at tracheal intubation are associated with mortality, and successful rescue requires a structured plan. However, there remains a paucity of data to guide the choice of intubation rescue technique after failed initial direct laryngoscopy. The authors studied a large perioperative database to determine success rates for commonly used intubation rescue techniques. Methods Using a retrospective, observational, comparative design, the authors analyzed records from seven academic centers within the Multicenter Perioperative Outcomes Group between 2004 and 2013. The primary outcome was the comparative success rate for five commonly used techniques to achieve successful tracheal intubation after failed direct laryngoscopy: (1) video laryngoscopy, (2) flexible fiberoptic intubation, (3) supraglottic airway as part of an exchange technique, (4) optical stylet, and (5) lighted stylet. Results A total of 346,861 cases were identified that involved attempted tracheal intubation. A total of 1,009 anesthesia providers managed 1,427 cases of failed direct laryngoscopy followed by subsequent intubation attempts (n = 1,619) that employed one of the five studied intubation rescue techniques. The use of video laryngoscopy resulted in a significantly higher success rate (92%; 95% CI, 90 to 93) than other techniques: supraglottic airway conduit (78%; 95% CI, 68 to 86), flexible bronchoscopic intubation (78%; 95% CI, 71 to 83), lighted stylet (77%; 95% CI, 69 to 83), and optical stylet (67%; 95% CI, 35 to 88). Providers most frequently choose video laryngoscopy (predominantly GlideScope® [Verathon, USA]) to rescue failed direct laryngoscopy (1,122/1,619; 69%), and its use has increased during the study period. Conclusions Video laryngoscopy is associated with a high rescue intubation success rate and is more commonly used than other rescue techniques.

scholarly journals Comparison of three types of intubation stylets for tracheal intubation with a McGrath MAC® video laryngoscope by novice intubators in simulated cervical immobilisation: A randomised crossover manikin study

2018 ◽  
Vol 25 (1) ◽  
pp. 27-32
Author(s):  
Sung-Wook Kim ◽  
Ji-Hoon Kim ◽  
Young-Min Kim ◽  
Jung Taek Park ◽  
Seung Pill Choi
Keyword(s):  
Tracheal Intubation ◽  
Dental Trauma ◽  
Video Laryngoscope ◽  
Trauma Patients ◽  
Successful Intubation ◽  
Success Rates ◽  
Manikin Study ◽  
Mcgrath Mac ◽  
Rigid Stylet ◽  
Post Hoc

Introduction: Tracheal intubation using video laryngoscopes has been a better approach for trauma patients requiring cervical immobilisation. The aim of this study was to compare the time to successful intubation by novice intubators using three types of intubation stylets with the new McGrath MAC video laryngoscope in a manikin model. Methods: This was a randomised crossover manikin study. The participants performed tracheal intubations using three intubation stylets (arcuate shape malleable stylet, McGrath MAC-shaped malleable stylet and McGrath MAC-shaped rigid stylet) in a difficult airway model with cervical immobilisation. The order of the stylets was randomised. The primary outcome was the time to successful intubation. The secondary outcomes were the overall success rates, incidence of dental trauma and ease of intubation. All intubation attempts were assessed by trained assistants. The data were analysed using a multilevel model followed by Tukey’s post hoc test. Results: A total of 68 nurses participated in this study. The time to successful intubation of the McGrath MAC-shaped malleable stylet was significantly shorter than that of the arcuate shape malleable stylet (24.5 (18.0–51.0) s vs 31.5 (21.0–89.0) s, p = 0.005). The overall success rate of the McGrath MAC-shaped malleable stylet was also higher than that of the arcuate shape malleable stylet ( p = 0.047). The participants indicated that intubation was easier using the McGrath MAC-shaped malleable stylet compared with the other stylets. Conclusion: The McGrath MAC-shaped malleable stylet, when used by novice intubators, may be an optimal stylet shape for tracheal intubation using the McGrath MAC in cervical immobilisation.

Sign in / Sign up

Export Citation Format

Share Document