A randomised comparative study of the effect of Airtraq optical laryngoscope vs. Macintosh laryngoscope on intraocular pressure in non-ophthalmic surgery

Das, Bikramjit; Samal, Rajiv Kumar; Ghosh, Arup; Kundu, Ratul

doi:10.1016/j.bjane.2014.07.004

Cited by 6 publications

(6 citation statements)

References 22 publications

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“…A sample of 45 was needed to obtain a power of 90% and confidence level of 95% and to detect significant difference of mean heart rate between the two groups. 4 With addition of 10% possible dropouts, 50 samples were taken in each group in this study. We considered a difference in heart rate and mean arterial pressure of 20% to be clinically significant.…”

Section: Methodsmentioning

confidence: 99%

“…Difference in heart rates was our primary outcome measure as changes in heart rate may occur with lesser degree of airway stimulation than that for changes in Blood Pressure as mentioned in the reference article. 4 Our secondary outcome measures were systolic, diastolic and mean arterial pressure and intubation time. Heart rate, systolic blood pressure, diastolic blood pressure and mean arterial pressures were recorded immediately after laryngoscopy, then 1, 3, 5 and ten minutes after intubation of trachea.…”

Section: Methodsmentioning

confidence: 99%

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Hemodynamic changes during orotracheal intubation using Airtraq video laryngoscope and direct laryngoscope: A randomized comparative study

Upadhyaya

Pathak

2019

J. Soc. Anesth. Nep.

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Introduction: Direct laryngoscopy is associated with sympathetic stimulation and altered hemodynamics. A long intubation time may result in a greater in stress response. Alternative techniques using video laryngoscopes have been developed that do not require direct vocal cord visualization and may decrease the hemodynamic response. This study aimed to compare the difference between hemodynamic changes and intubation time with Airtraq video laryngoscope and conventionl Macintosh direct laryngoscope. Methods: A prospective randomized comparative study was conducted involving 100 adult patients who were undergoing elective surgeries under general anesthesia and endotracheal intubation. The patients were randomly assigned to group V (Video laryngoscope) or group D (Direct laryngoscope). In addition to the baseline vitals and vitals at various time intervals, intubation time was also recorded. We considered a difference in Heart Rate and Mean Arterial pressure of 20% to be clinically significant and statistical significance was p-value <0.05. Results: Significant difference was found in heart rates immediately after laryngoscopy (110.40 vs. 105.02 beats/minute; p<0.01) and 1 minute after intubation (109.30 vs. 106.20 beats/minute; p<0.01) with attenuation seen in video laryngoscopy group. Blood pressures were similar in both the groups at all times. Time for intubation was prolonged in video laryngoscopy group than that for direct laryngoscopy group (26.54 vs. 22.80 seconds; p<0.05). There were no adverse events associated with either of the techniques. Conclusions: The Airtraq video laryngoscopy resulted in lesser change in heart rate and longer intubation time. However, clinical impact of such a difference seemed to be insignificant.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Hemodynamic changes during orotracheal intubation using Airtraq video laryngoscope and direct laryngoscope: A randomized comparative study

Upadhyaya

Pathak

2019

J. Soc. Anesth. Nep.

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“…(12) Das et al in 2016 were found that Macintosh laryngoscopes had a significant increase in IOP and hemodynamic response to laryngoscopy and intubation in comparison with Airtraq laryngoscopy. (5) McCoy et al…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, there is a positive relationship between IOP changes and individual hemodynamic status. (5) Increase in IOP is safe in healthy and closed eyes, but in the eye trauma or during eye surgery, including cataract, it can cause of bleeding and permanent vision loss. (6) Changes in the IOP or sudden and immediate high pressures may have negative effects on the vision system.…”

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confidence: 99%

Comparison of Intraocular Pressure Changes in Patients Undergoing Cataract Surgery, Based on Local and General Anaesthesia With Laryngeal Mask Airway and Laryngoscopy Types

Domari¹,

Sarkoohi²,

Taghavi³

et al. 2019

jemds

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BACKGROUND The control of hemodynamic status is important because it can affect intraocular pressure (IOP) in patients undergoing eye surgery. We wanted to compare IOP changes in patients undergoing cataract surgery based on local anaesthesia and general anaesthesia with laryngeal mask and laryngoscopy types. METHODS In this double-blind non-randomized controlled trial; 170 patients 40-80 years old (ASA class I-II) candidates for elective cataract surgery enrolled to the study by convenience sampling method. After informed consent, patients were allocated to five groups A, B, C, D and E respectively. A) local anaesthesia, B) Macintosh laryngoscope, C) McCoy laryngoscope, D) video GlideScope and E) laryngeal mask airway. Systolic and diastolic blood pressures, mean arterial pressure, oxygen saturation and IOP were measured before, immediately and 5 minutes after airway intervention. IOP was measured with a Tono-Pen. Data was analysed by SPSS-16 using repeated measure ANOVA (Analysis of Variances), post hoc Tukey and chi-square tests. p-Value less than 0.05 was considered statistically significant. RESULTS 115 patients (67.6%) were female and 55 (32.4%) were male. In the local anaesthetic group, mean of IOP decreased significantly after airway intervention (p= 0.001). In laryngeal mask, Macintosh laryngoscope, McCoy laryngoscope and video GlideScope groups, IOP increased immediately and decreased 5 minutes after airway intervention (p = 0.001). Before the airway intervention, the mean of IOP in local anaesthetic group was higher than other groups (p= 0.012). Immediately and 5 minutes after air intervention, mean of IOP of the Macintosh laryngoscope was higher than other groups respectively (p< 0.001, p= 0.029). CONCLUSIONS Our results showed that Macintosh laryngoscopy has more effects on IOP in patients undergoing cataract surgery in comparison to other anaesthetic methods. HOW TO CITE THIS ARTICLE: Domari AA, Sarkoohi A, Taghavi Y, et al. Comparison of intraocular pressure changes in patients undergoing cataract surgery, based on local and general anaesthesia with laryngeal mask airway and laryngoscopy types. J.

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“…There are studies which have compared the hemodynamic response and increase in IOP in intubation using direct Macintosh laryngoscope and various videolaryngoscopes and airway devices [4][5][6]. However, to the best of our knowledge there is no study comparing the effect on the increase in IOP of C-MAC videolaryngoscope and Macintosh laryngoscope.…”

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confidence: 99%

A comparison of C-MAC videolaryngoscope and Macintosh laryngoscope in intraocular pressure changes, throat pain, intubation time and hemodynamic variables

Çaparlar

Aydın

Sezer

et al. 2019

The European Research Journal

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Objective:The aim of the current study was to compare intraocular pressure (IOP), hemodynamic parameters and throat pain in the use of C-MAC videolaryngoscope and the Macintosh laryngoscope under general anesthesia requiring endotracheal intubation. Methods: Seventy-eight patients aged 18-65 years, ASA (American Society of Anesthesiologists physical status). I-II, who underwent elective surgery under general anesthesia were scheduled in the study. The groups were allocated as Group M (Macintosh laryngoscope) and Group VL (videolaryngoscope). Standard anesthesia technique was used in both groups. To assess the depth of anesthesia which was kept between 40 and 60, a Bispectral Index Monitor Model 2000 (Aspect Medical Systems, Inc, Newton, MA) was used throughout the study. We recorded hemodynamic variables, oxygen saturation before induction, at the 3rd and at the 10th minutes after intubation. The duration of intubation was recorded as the time from the laryngoscope entering the mouth to removal with end-tidal carbon dioxide on the monitor. IOP was measured before induction, and at the 3rd and 10th minutes after intubation. Inhalation agent was given after intubation. 78 patients were included in the study. We recorded cough after extubation, and postoperative sore throat was evaluated by an anesthesiologist who was blinded to the group allocations at 10 minutes and at 24 hours postoperatively. Results: There was no significant difference between the groups regarding age (p > 0.05), mean body mass index (p = 0.157), mean ASA (p = 0.475), mean bispectral index values (p = 0.084) and mean operating time (p = 0.068). The mean duration of intubation was determined to be statistically significantly longer in Group M than in Group VL (p = 0.0001). There was no statistically significant difference between the groups regarding Modified Mallampati Score (p = 0.571) and Cormack Lehane Score (p = 0.819). The mean IOP at 3rd minute after intubation was determined to be statistically significantly higher in Group M (p = 0.0001). There was no statistically significant difference between the groups in regarding cough after extubation (p = 0.549), throat pain at 10 minutes (p = 0.662) and at 24 hours postoperatively. Conclusions: C-MAC videolaryngoscope can be recommended as the first choice in patients with high IOP requiring general anesthesia with endotracheal intubation.

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A randomised comparative study of the effect of Airtraq optical laryngoscope vs. Macintosh laryngoscope on intraocular pressure in non-ophthalmic surgery

Abstract: We conclude that Airtraq laryngoscope in comparison to Macintosh laryngoscope results in significantly fewer rises in intraocular pressure and clinically less marked increase in haemodynamic response to laryngoscopy and intubation.

Cited by 6 publications

References 22 publications

Hemodynamic changes during orotracheal intubation using Airtraq video laryngoscope and direct laryngoscope: A randomized comparative study

Hemodynamic changes during orotracheal intubation using Airtraq video laryngoscope and direct laryngoscope: A randomized comparative study

Comparison of Intraocular Pressure Changes in Patients Undergoing Cataract Surgery, Based on Local and General Anaesthesia With Laryngeal Mask Airway and Laryngoscopy Types

A comparison of C-MAC videolaryngoscope and Macintosh laryngoscope in intraocular pressure changes, throat pain, intubation time and hemodynamic variables

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