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. 2018 Dec;46(6):434-440.
doi: 10.5152/TJAR.2018.59265. Epub 2018 Sep 6.

Haemodynamic Response to Four Different Laryngoscopes

Demet Altun  1 , Achmet Ali  1 , Emre Çamcı  1 , Anıl Özonur  1 , Tülay Özkan Seyhan  1
Affiliations

Haemodynamic Response to Four Different Laryngoscopes

Demet Altun et al. Turk J Anaesthesiol Reanim. 2018 Dec.

Abstract

Objective: In this prospective randomized study, we aimed to evaluate the effect of tracheal intubation with four different laryngoscopes [Macintosh direct laryngoscope-classic laryngoscope (CL), McCoy (MC), C-Mac video-laryngoscope (CM) and McGrath video-laryngoscope (MG)] on haemodynamic responses in patients with a normal airway.

Methods: One hundred and sixty patients were included. Succeeding haemodynamic measurements were performed immediately after intubation (T2) and for 5 min with 1-min intervals (T3-T4-T5-T6-T7). The primary outcome was the heart rate (HR) and systolic blood pressure (SBP) change triggered by the four different laryngoscopes. The intubation time, the number of intubation attempts, need for stylet or additional manipulation, glottic view and traumatic complications caused by intubation procedure were recorded as secondary outcomes.

Results: HR values significantly increased with the completion of laryngoscopy and intubation at T2 for the CL, MC and CM groups. Lesser fluctuation in HR and SBP was observed in the MG group. Intubation time was significantly shorter in the MG group (p<0.001). There was no statistically significant difference between the groups regarding the number of intubation attempts, need for stylette and glottic view. Fewer patients in the MG and CM groups experienced a moderate and severe sore throat than in the other two groups. Shorter intubation time and lesser sore throat incidence were observed in the MG group.

Conclusion: MG offers less haemodynamic stimulation than CL, MC, and CM. Our findings showed that tracheal intubation with MG is advantageous in preventing cardiovascular stress responses with short intubation time and less sore throat incidence.

Keywords: Haemodynamic response; laryngoscope; tracheal intubation.

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Conflict of interest statement

Conflict of Interest: The authors have no conflicts of interest to declare.

Figures

Figure 1
Figure 1
Flow diagram of the study
Figure 2
Figure 2
Heart rate changes during the study period (Only intergroup significances are showed) *p<0.001 compored to CL, MC and CM, &p<0.01 compared to MG and CM CL: Macintosh direct laryngoscope-classic laryngoscope; MC: McCoy laryngoscope; MG: McGrath video-laryngoscope; CM: C-Mac video-laryngoscope
Figure 3
Figure 3
Systolic blood pressure changes during the study period (Only intergroup significances are showed) *p<0.001 compared to CL, MC and CM CL: Macintosh direct laryngoscope-classic laryngoscope; MC: McCoy laryngoscope; MG: McGrath video-laryngoscope; CM: C-Mac video-laryngoscope
See this image and copyright information in PMC

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