-
Anaesthesia Jan 1955
Topics: Humans; Laryngoscopes; Laryngoscopy
PubMed: 13218260
DOI: 10.1111/j.1365-2044.1955.tb00349.x -
BMC Anesthesiology Aug 2019King Vision and McGrath MAC video laryngoscopes (VLs) are increasingly used. The purpose of this study was to evaluate the performance of nasotracheal intubation in... (Comparative Study)
Comparative Study Randomized Controlled Trial
A randomized controlled comparison of non-channeled king vision, McGrath MAC video laryngoscope and Macintosh direct laryngoscope for nasotracheal intubation in patients with predicted difficult intubations.
BACKGROUND
King Vision and McGrath MAC video laryngoscopes (VLs) are increasingly used. The purpose of this study was to evaluate the performance of nasotracheal intubation in patients with predicted difficult intubations using non-channeled King Vision VL, McGrath MAC VL or Macintosh laryngoscope by experienced intubators.
METHODS
Ninety nine ASA I or II adult patients, scheduled for oral maxillofacial surgeries with El-Ganzouri risk index 1-7 were enrolled. Patients were randomly allocated to intubate with one of three laryngoscopes (non-channeled King Vision, McGrath MAC and Macintosh). The intubators were experienced with more than 100 successful nasotracheal intubations using each device. The primary outcome was intubation time. The secondary outcomes included first success rate, time required for viewing the glottis, Cormack-Lehane grade of glottis view, the number of assist maneuvers, hemodynamic responses, the subjective evaluating of sensations of performances and associated complications.
RESULTS
The intubation time of King Vision and McGrath group was comparable (37.6 ± 7.3 s vs. 35.4 ± 8.8 s) and both were shorter than Macintosh group (46.8 ± 10.4 s, p < 0.001). Both King Vision and McGrath groups had a 100% first attempt success rate, significantly higher than Macintosh group (85%, p < 0.05). The laryngoscopy time was comparable between King Vision and McGrath group (16.7 ± 5.5 s vs. 15.6 ± 6.3 s) and was shorter than Macintosh group (22.8 ± 7.2 s, p < 0.05) also. Compared with Macintosh laryngoscope, Glottis view was obviously improved when exposed with either non-channeled King Vision or McGrath MAC VL (p < 0.001), and assist maneuvers required were reduced (p < 0.001). The maximum fluctuations of MAP were significantly attenuated in VL groups (47.7 ± 12.5 mmHg and 45.1 ± 10.3 mmHg vs. 54.9 ± 10.2 mmHg, p < 0.05 and p < 0.01). Most device insertions were graded as excellent in McGrath group, followed by Macintosh and King Vision group (p = 0.0014). The tube advancements were easier in VLs compared with the Macintosh laryngoscope (p < 0.001). Sore throat was found more frequent in Macintosh group compared with King Vision group (p < 0.05).
CONCLUSIONS
Non-channeled King Vision and McGrath MAC VLs were comparable and both devices facilitated nasotracheal intubation in managing predicted difficult intubations compared with Macintosh laryngoscope.
TRIAL REGISTRATION
ClinicalTrials registration number NCT03126344 . Registered on April 24, 2017.
Topics: Adult; China; Female; Glottis; Hemodynamics; Humans; Intubation, Intratracheal; Laryngoscopes; Male; Pharyngitis; Time Factors; Video Recording; Young Adult
PubMed: 31470814
DOI: 10.1186/s12871-019-0838-z -
Anaesthesia Feb 1989
Topics: Equipment Failure; Humans; Laryngoscopes
PubMed: 2929962
DOI: 10.1111/j.1365-2044.1989.tb11214.x -
Anesthesiology Jan 2005
Topics: History, 20th Century; Humans; Laryngoscopes; Tooth Injuries
PubMed: 15618821
DOI: 10.1097/00000542-200501000-00046 -
Anaesthesia Jul 2001
Topics: Equipment Failure; Humans; Laryngoscopes
PubMed: 11437793
DOI: 10.1046/j.1365-2044.2001.02137-12.x -
Ulusal Travma Ve Acil Cerrahi Dergisi =... Jul 2021Endotracheal intubation is a key skill for clinicians and may be challenging in some patients due to various reasons. Nowadays, various kinds of videolaryngoscopes are... (Randomized Controlled Trial)
Randomized Controlled Trial
BACKGROUND
Endotracheal intubation is a key skill for clinicians and may be challenging in some patients due to various reasons. Nowadays, various kinds of videolaryngoscopes are available and usually used as a rescue device when direct laryngoscopy failed. Pediatric airway has some differences when compared with adults and may be challenging. This study aims to compare and evaluate C Mac D-Blade and commonly used Macintosh laryngoscope in pediatric patients.
METHODS
In this study, 56 pediatric patients, 5-10 years old (10-40 kgs) who had undergone elective surgery and need endotracheal intubation were included after obtaining ethical board approval and informed consent from parents. The patients were randomized into two equal groups for laryngoscopy and intubation by either with Macintosh laryngoscope or C Mac D-Blade videolaryngoscope. Glottic view, number of attempts, intubation time, any complications and hemodynamic variables were recorded. A value of p<0.05 was considered significant.
RESULTS
In pediatric patients with unanticipated difficult airway, the mean intubation time was significantly shorter with C Mac D-Blade (21±9 and 41±7 seconds, respectively (p<0.001). The results of the two groups were similar concerning the remaining parameters.
CONCLUSION
C Mac D-Blade videolaryngoscope shortened intubation time about twice when compared to Macintosh blade C Mac D-Blade videolaryngoscope, Videolaryngoscopes may be a good alternative for routine intubation, education and a rescue device for difficult intubation.
Topics: Child; Child, Preschool; Humans; Laryngoscopes; Laryngoscopy; Operative Time; Video-Assisted Surgery
PubMed: 34212998
DOI: 10.14744/tjtes.2020.58455 -
Journal of Comparative Effectiveness... Jul 2021Compared with direct laryngoscopy (DL), video laryngoscopy (VL) offers clinical benefits in routine and difficult airways. The health economic benefit of VL versus DL...
Compared with direct laryngoscopy (DL), video laryngoscopy (VL) offers clinical benefits in routine and difficult airways. The health economic benefit of VL versus DL for routine tracheal intubation remains unknown. This analysis compared VL and DL health economic outcomes, including total inpatient costs, length of hospital stay (LOS), postoperative intensive care unit (ICU) admission and incidence of procedurally associated complications. Patients with VL had decreased inpatient cost (US$1144-5891 across eight major diagnostic categories [MDC]); >1-day LOS reduction in five MDC; reduced odds for postoperative ICU admission (0.04-0.68) and reduced odds of respiratory complications in three MDC (0.43-0.90). Video laryngoscopy may lower total costs, reduce LOS and decrease the likelihood of postoperative ICU admission.
Topics: Hospitalization; Humans; Intubation, Intratracheal; Laryngoscopes; Laryngoscopy; Length of Stay
PubMed: 33904779
DOI: 10.2217/cer-2021-0068 -
British Medical Journal Jul 1951
Topics: Apathy; Humans; Laryngoscopes; Laryngoscopy
PubMed: 14848524
DOI: No ID Found -
Anesthesiology Jul 1986
Topics: Equipment Failure; Laryngoscopes
PubMed: 3729033
DOI: 10.1097/00000542-198607000-00032 -
European Archives of... Aug 2021It is not always possible to create linear access to the larynx using a rigid operating laryngoscope for microlaryngoscopy. In this study, we evaluate the usability of a...
PURPOSE
It is not always possible to create linear access to the larynx using a rigid operating laryngoscope for microlaryngoscopy. In this study, we evaluate the usability of a novel curved surgical prototype with flexible instruments for the larynx (sMAC) in a simulation dummy and human body donor.
METHODS
In a user study (n = 6), head and neck surgeons as well as medical students tested the system for visualization quality and accessibility of laryngeal landmarks on an intubation dummy and human cadaver. A biopsy of the epiglottis was taken from the body donor. Photographic and time documentation was carried out.
RESULTS
The sMAC system demonstrated general feasibility for laryngeal surgery. Unlike conventional microlaryngoscopy, all landmarks could be visualized and manipulated in both setups. Biopsy removal was possible. Visibility of the surgical field remained largely unobstructed even with an endotracheal tube in place. Overall handling of the sMAC prototype was satisfactorily feasible at all times.
CONCLUSION
The sMAC system could offer an alternative for patients, where microlaryngoscopy is not applicable. A clinical trial has to clarify if the system benefits in clinical routine.
Topics: Epiglottis; Humans; Intubation, Intratracheal; Laryngoscopes; Laryngoscopy; Larynx
PubMed: 33885971
DOI: 10.1007/s00405-021-06791-9