A comparison between left molar direct laryngoscopy and the use of a Bonfils intubation fibrescope for tracheal intubation in a simulated difficult airway

Gupta, Anju; Thukral, Seema; Lakra, Archana; Kumar, Sushil

doi:10.1007/s12630-015-0336-9

Cited by 7 publications

(25 citation statements)

References 27 publications

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“…Five studies with a total of 487 patients (video-stylet group, n = 242 vs laryngoscope group, n = 245) were eligible for the analysis. [21–25] The first-pass success rates were 80.6% and 72.7% in the video-stylet group and laryngoscope group, respectively. A forest plot showed no difference between the 2 groups (RR = 1.08, 95% CI: 0.89–1.31, P = .46; I 2 = 78%) (Fig.…”

Section: Resultsmentioning

confidence: 99%

Comparison of video-stylet and conventional laryngoscope for endotracheal intubation in adults with cervical spine immobilization: A PRISMA-compliant meta-analysis

Chen

Hung

et al. 2022

Medicine

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Background: Although minimization of cervical spine motion by using a neck collar or manual in-line stabilization is recommended for urgent tracheal intubation (TI) in patients with known or suspected cervical spine injury (CSI), it may worsen glottic visualization. The overall performance of video-stylets during TI in patients with neck immobilization remains unclear. The current meta-analysis aimed at comparing the intubation outcomes of different video-stylets with those of conventional laryngoscopes in patients with cervical immobilization. Method: The databases of Embase, Medline, and the Cochrane Central Register of Controlled Trials were searched from inception to June 2021 to identify trials comparing intubation outcomes between video-stylets and conventional laryngoscopes. The primary outcome was first-pass success rate, while secondary outcomes included overall success rate, time to intubation, the risk of intubation-associated sore throat, or tissue damage. Results: Five randomized controlled trials published between 2007 and 2013 involving 487 participants, all in an operating room setting, were analyzed. The video-stylets investigated included Bonfils intubation fiberscope, Levitan FPS Scope, and Shikani optical stylet. There was no difference in first-pass success rate (risk ratio [RR] =1.08, 95% confidence interval [CI]: 0.89–1.31, P = .46], overall success rate (RR = 1.06, 95% CI: 0.93–1.22, P = .4), intubation time [mean difference = 4.53 seconds, 95% CI: –8.45 to 17.51, P = .49), and risk of tissue damage (RR = 0.46, 95% CI: 0.16–1.3, P = .14) between the 2 groups. The risk of sore throat was lower with video-stylets compared to that with laryngoscopes (RR = 0.45, 95% CI: 0.23–0.9, P = .02). Conclusion: Our results did not support the use of video-stylets as the first choice for patients with neck immobilization. Further studies are required to verify the efficacy of video-stylets in the nonoperating room setting.

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Section: Resultsmentioning

confidence: 99%

Comparison of video-stylet and conventional laryngoscope for endotracheal intubation in adults with cervical spine immobilization: A PRISMA-compliant meta-analysis

Chen

Hung

et al. 2022

Medicine

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“…This is in agreement with previous studies, which state that OELM improves the glottis CL grade in both right and left molar intubations. [ 4 10 15 ] However, Jindal et al . [ 13 ] found the IDS parameter most applied was 'number of attempts', with 10 of 70 patients requiring two attempts to intubate.…”

Section: Discussionmentioning

confidence: 99%

Videolaryngoscopic versus direct laryngoscopic paraglossal intubation for cleft lip/palate reconstructive surgeries: A randomised controlled trial

et al. 2021

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Background and Aims: In the cleft lip and palate, the laryngoscope blade often tends to lodge inside midline clefts, causing reduced manoeuvrability and tissue trauma. The paraglossal technique avoids the midline and offers better Cormack Lehane (CL) grades. We aimed to assess the first-pass intubation rate in performing the left paraglossal laryngoscopy with a curved-blade videolaryngoscope (VLS) versus direct laryngoscope (DLS) in children with cleft palate and evaluate the time taken for successful endotracheal intubation (TTI) and Intubation Difficulty Score (IDS) with both devices. Methods: This randomised controlled trial included 60 patients with cleft palate, between 3 months and 6 years. Patients were randomised into group V (VLS) (n = 30) and group D (DLS) (n = 30). Left paraglossal laryngoscopy was done with VLS or DLS, and the first-pass intubation, TTI, CL grade and IDS were recorded. Results: First-pass intubation (primary outcome) was successful in all cases in group V and in 29 (96%) cases in group D ( P = 0.923). Amongst the secondary outcomes, the IDS of the majority in both groups was 1–4 (slight difficulty) ( P = 0.98) and the mean TTI In group D was 34.6 s (SD = 19.0) (95% CI: 27.5–41.7) versus 39.8 s (SD = 5.2) (95% CI: 37.8–41.7) in group V ( P = 0.151). Conclusions: There was no significant difference in the use of a VLS over a DLS in performing the left paraglossal laryngoscopy in terms of first-pass intubation rate, CL Grade, IDS and TTI. Further studies with different VLS may be done to improve the ease of this technique.

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“…However, compared with the midline approach, the left molar approach is faster and improves glottis view, especially in patients with restricted neck mobility. [ 7 8 ] We speculated that the unique features of SOS provided advantages over MLS in improving the intubation success rate and lowering the incidence of complications. Considering the higher incidence of difficult airway in patients with cervical spondylosis and few previous studies of the airway in these patients regarding its influence on success rate and intubation time, we determined a Cormack-Lehane classification score in each patient and assigned the population to Cormack-Lehane Grade I/II (normal airway) and III/IV (difficult airway) groups.…”

Section: Discussionmentioning

confidence: 99%

Shikani Optical Stylet versus Macintosh Laryngoscope for Intubation in Patients Undergoing Surgery for Cervical Spondylosis

Guo

et al. 2017

Chinese Medical Journal

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Background:Airway management is critical in patients with cervical spondylosis, a population with a high incidence of difficult airway. Intubation with Shikani Optical Stylet (SOS) has become increasingly popular in difficult airway. We compared the effects of intubation with SOS versus Macintosh laryngoscope (MLS) in patients undergoing surgery for cervical spondylosis.Methods:A total of 270 patients scheduled for elective surgery for cervical spondylosis of spinal cord and nerve root type from August 2012 to January 2016 were enrolled and randomly allocated to the MLS or SOS group by random numbers. Patients were evaluated for difficult airway preoperatively, and Cormack-Lehane laryngoscopy classification was determined during anesthesia induction. Difficult airway was defined as Cormack-Lehane Grades III–IV. Patients were intubated with the randomly assigned intubation device. The success rate, intubation time, required assistance, immediate complications, and postoperative complaints were recorded. Categorical variables were analyzed by Chi-square test, and continuous variables were analyzed by independent samples t-test or rank sum test.Results:The success rate of intubation among normal airways was 100% in both groups. In patients with difficult airway, the success rates in the MLS and SOS groups were 84.2% and 94.1%, respectively (P = 0.605). Intubation with SOS took longer compared with MLS (normal airway: 25.1 ± 5.8 s vs. 24.5 ± 5.7 s, P = 0.426; difficult airway: 38.5 ± 8.5 s vs. 36.1 ± 8.2 s, P = 0.389). Intubation with SOS required less assistance in patients with difficult airway (5.9% vs. 100%, P < 0.001). The frequency of postoperative sore throat was lower in SOS group versus MLS group in patients with normal airway (22.0% vs. 34.5%, P = 0.034).Conclusions:SOS is a safe and effective airway management device in patients undergoing surgery for cervical spondylosis. Compared with MLS, SOS appears clinically beneficial for intubation, especially in patients with difficult airway.Trial Registration:Chinese Clinical Trial Registry, ChiCTR-IOR-16007821; http://www.chictr.org.cn/showproj.aspx?proj=13203.

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A comparison between left molar direct laryngoscopy and the use of a Bonfils intubation fibrescope for tracheal intubation in a simulated difficult airway

Cited by 7 publications

References 27 publications

Comparison of video-stylet and conventional laryngoscope for endotracheal intubation in adults with cervical spine immobilization: A PRISMA-compliant meta-analysis

Comparison of video-stylet and conventional laryngoscope for endotracheal intubation in adults with cervical spine immobilization: A PRISMA-compliant meta-analysis

Videolaryngoscopic versus direct laryngoscopic paraglossal intubation for cleft lip/palate reconstructive surgeries: A randomised controlled trial

Shikani Optical Stylet versus Macintosh Laryngoscope for Intubation in Patients Undergoing Surgery for Cervical Spondylosis

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