A comparative study between Truview <sup>PCD</sup> laryngoscope and Macintosh laryngoscope in viewing glottic opening and ease of intubation: A crossover study

Bag, Sourav Kr; Kumar, Vinay; Krishnaveni, N.; Ravishankar, M; Velraj, Jaya; Aruloli, M

doi:10.4103/0259-1162.143152

Cited by 12 publications

(8 citation statements)

References 19 publications

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“…[ 8 ] Trueview video laryngoscope has an integrated optical lens system with unique angulated blade which provides optimal indirect view of the glottis. [ 9 ]…”

Section: Introductionmentioning

confidence: 99%

Comparative evaluation of mcgrath MAC, Truview video laryngoscopes and Macintosh laryngoscope for endotracheal intubation in patients undergoing surgery under general anaesthesia

et al. 2020

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Background: Videolaryngoscopy is a newly developed technique to improve tracheal intubation success. It was made to bypass the need of directly visualising the glottic inlet. These devices are advantageous as there is no need of aligning the laryngeal, pharyngeal and oral axes for a clear view, thus making intubation easier and faster. Aim and Objectives: Primary objective of the study was to determine the duration of laryngoscopy and intubation and Cormack - Lehane grading when intubating with McGrath MAC, Truview video laryngoscope and Macintosh laryngoscope. Secondary objectives of the study were to determine the number of attempts and optimization manouveres required to intubate. Materials and Methods: This study was conducted on total of 120 patients in age 20-70 years, either sex, with American Society of Anaesthesiologists physical status classes I or II scheduled for elective surgery under general anaesthesia. They were randomly assigned equally to group 1, 2 and 3 ( n = 40) to be intubated by Mcgrath MAC video laryngoscope, Truview video laryngoscope and Macintosh laryngoscope respectively. Parameters recorded were duration of laryngoscopy and intubation, Cormack Lahane grading, ease of intubation, number of attempts and optimisation manouveres required for intubation. Statistical Analysis: Comparison of mean value among the three groups was done using student t test and percentage comparison was done using chi square test. To compare more than two variables ANOVA test was used. The P values of less than 0.05 was considered statistically significant. Results: Duration of laryngoscopy was significantly less in McGrath MAC group when compared to Truview group ( P = 0.02) and to Macintosh group ( P < 0.001) and the duration of intubation was comparable among all three study groups ( P > 0.05). The difference in Cormack - Lehane grading was not significant between McGgrath MAC and Trueview ( P = 0.71) but was significant between McGrath MAC and Macintosh ( P = 0.002) and Trueview and Macintosh ( P = 0.002). Ease of intubation was better in McGrath MAC and Truview groups compared to Macintosh group ( P < 0.05). Intubation was successful in the first attempt in 39 (97.50%) patients in McGrath MAC group, 40 (100%) patients in Truview group and 35 (87.50%) patients in Macintosh group. McGrath MAC and Truview groups performed better with respect to optimization manoeuvres compared to Macintosh group ( P < 0.05). Trauma was observed in 2 (5%) patients in Truview group and 5 (12.50%) patients in Macintosh group. In McGrath MAC group, no patient underwent any trauma. Conclusion: Although durat...

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“…[ 8 ] Trueview video laryngoscope has an integrated optical lens system with unique angulated blade which provides optimal indirect view of the glottis. [ 9 ]…”

Section: Introductionmentioning

confidence: 99%

Comparative evaluation of mcgrath MAC, Truview video laryngoscopes and Macintosh laryngoscope for endotracheal intubation in patients undergoing surgery under general anaesthesia

et al. 2020

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“…Previous studies have also found decreased stress response to laryngoscopy with video laryngoscopes as compared to the Macintosh laryngoscope. [ 19 ] This finding could be because laryngoscopy can be performed with less lifting force required with video laryngoscopes as discussed previously.…”

Section: Discussionmentioning

confidence: 88%

Comparison of king vision and truview laryngoscope for postextubation visualization of vocal cord mobility in patients undergoing thyroid and major neck surgeries: A randomized clinical trial

et al. 2017

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Background:Visualization of vocal cords following extubation after thyroid and major neck surgeries is highly desirable for the surgeon as well as the anaesthesiologist to rule out vocal cord palsy or oedema. As the patient is emerging from general anaesthesia, it may be challenging for the anaesthesiologist to optimally visualise and grade vocal cord movement following extubation.Setting:Randomized clinical trial at a tertiary care centre.Methodology:After obtaining institutional ethics committee approval, 60 patients posted for thyroid and major neck surgeries under American Society of Anesthesiologists (ASA) grade I and II were recruited for the study. Written informed consent was obtained. Pre-operatively indirect laryngoscopy was performed in all the patients to assess baseline vocal cord function. All patients were premedicated and induced and maintained as per standardized anaesthesia protocol. Patients were randomized using a sealed envelope technique to either Group K where intubation was performed using Kings vision laryngoscope or Group T where intubation was performed using True view laryngoscope. Glottis visualization was graded in all patients and intubated. Ten minutes prior to extubation injection. dexmedetomidine 1 μg/kg was administered. Once patients satisfied extubation criteria, laryngoscopy was performed using respective video-laryngoscope in each group, patient extubated under vision and assessed for vocal cord visualization and mobility grade (VMG) and patient reactivity score (PRS). Heart rate, systolic blood pressure, diastolic blood pressure and mean arterial pressure was also noted. Total intraoperative morphine consumption was recorded. Vocal cord function was assessed again before the day of discharge by indirect laryngoscopy.Results:Age (P = 0.27), sex (P = 0.08), body mass index (P = 0.70), ASA (P = 0.39), mallampati class (P = 0.72) and morphine used (P = 0.39) were comparable in both groups. There was no statistically significant difference among the two groups with respect to VMG (P = 0.18). There was no statistical difference in the PRS (P = 0.06) in both groups. Increase in heart rate or mean arterial pressure from baseline was not significant statistically in both groups. Time taken for laryngoscopy during extubation was significantly less with group T as compared to group K (P = 0.000).Conclusion:Both Kings Vision and Truview Video-laryngoscopes provide comparable laryngoscopic view with similar patient comfort, although clinically Truview may be a better choice due to less time consumed for visualisation and rating vocal cord movement during extubation.

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“…in their comparison of Truview PCD and the Macintosh laryngoscope for glottic view and ease of intubation where they noted a significant rise from baseline HR with the Macintosh laryngoscope than with the Truview PCD laryngoscope. [ 13 ] Cierniak et al . observed that King Vision had comparative hemodynamic parameters with other video laryngoscopes.…”

Section: Discussionmentioning

confidence: 99%

Suitability of nasotracheal intubation using King Vision and Truview^PCD video laryngoscopes: A randomized clinical trial

et al. 2018

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Background:Several video laryngoscopes had demonstrated their superiority over conventional oral and nasal intubation techniques. King Vision video laryngoscope has fewer studies supporting its suitability for oral intubations. However, its suitability as a nasal intubating device has not been yet evaluated. We evaluated the suitability of King Vision video laryngoscope for nasotracheal intubation comparing with TruviewPCD.Methods:Eighty American Society of Anesthesiologists Grade I and II elective surgical patients were studied. After meeting the inclusion criteria, 80 study subjects were randomized into two groups. Group T were intubated using TruviewPCD and Group K were intubated with the nonchanneled King Vision video laryngoscope. Our primary outcome was single successful nasotracheal intubation without use of any additional maneuvers. The time taken for intubation, use of additional maneuverers, Cormack-Lehane grading, and hemodynamics were also analyzed.Results:Seventy-one patients (88.75%) were successfully intubated in a single attempt, i.e. 35 patients (90%) in Group K and 36 patients (87.5%) in Group T. Intubation time (mean ± standard deviation) was 67.9 ± 24.1 s in Group T and 64.9 ± 20.0 s in Group K where comparison was not statistically significant (P = 0.5). The additional maneuvers (P = 0.2) and hemodynamic changes were not clinically significant. There were no associated serious complications.Conclusion:King Vision video laryngoscope is just as effective as TruviewPCD video laryngoscope for successful nasotracheal intubation.

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A comparative study between Truview ^PCD laryngoscope and Macintosh laryngoscope in viewing glottic opening and ease of intubation: A crossover study

Cited by 12 publications

References 19 publications

Comparative evaluation of mcgrath MAC, Truview video laryngoscopes and Macintosh laryngoscope for endotracheal intubation in patients undergoing surgery under general anaesthesia

Comparative evaluation of mcgrath MAC, Truview video laryngoscopes and Macintosh laryngoscope for endotracheal intubation in patients undergoing surgery under general anaesthesia

Comparison of king vision and truview laryngoscope for postextubation visualization of vocal cord mobility in patients undergoing thyroid and major neck surgeries: A randomized clinical trial

Suitability of nasotracheal intubation using King Vision and Truview^PCD video laryngoscopes: A randomized clinical trial

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A comparative study between Truview PCD laryngoscope and Macintosh laryngoscope in viewing glottic opening and ease of intubation: A crossover study

Cited by 12 publications

References 19 publications

Comparative evaluation of mcgrath MAC, Truview video laryngoscopes and Macintosh laryngoscope for endotracheal intubation in patients undergoing surgery under general anaesthesia

Comparative evaluation of mcgrath MAC, Truview video laryngoscopes and Macintosh laryngoscope for endotracheal intubation in patients undergoing surgery under general anaesthesia

Comparison of king vision and truview laryngoscope for postextubation visualization of vocal cord mobility in patients undergoing thyroid and major neck surgeries: A randomized clinical trial

Suitability of nasotracheal intubation using King Vision and TruviewPCD video laryngoscopes: A randomized clinical trial

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A comparative study between Truview ^PCD laryngoscope and Macintosh laryngoscope in viewing glottic opening and ease of intubation: A crossover study

Suitability of nasotracheal intubation using King Vision and Truview^PCD video laryngoscopes: A randomized clinical trial