CARDIOVASCULAR RESPONSE TO LARYNGOSCOPY VERSUS FIBER-OPTIC BRONCHOSCOPE DURING OROTRACHEAL INTUBATION IN PATIENTS UNDERGOING ELECTIVE SURGERY

Abstract

Objective: To compare the hemodynamic response between flexible fiber optic bronchoscope (FOB) and Macintosh laryngoscope during orotracheal intubation. The secondary objective was to calculate the time required for intubation between these two techniques Study Design: Quasi experimental study. Place and Duration of Study: Department of Anesthesia, Frontier Corps Hospital Quetta, from Oct 2016 to Apr 2017. Methodology: Eighty patients fulfilling the inclusion/exclusion criteria were included in this study and were divided randomly into two groups. Group L was intubated with Macintosh laryngoscope (control group) where-as group F was intubated with Fiber optic bronchoscope. Mean arterial pressure and heart rate was recorded as baseline, pre-intubation and then every 01 minute for 03 minutes. Changes in heart rate and mean arterial pressure were recorded in the proforma by another anesthetist who was blinded to the procedure performed. Results: The mean age in group L was 41.23 ± 8.37 years and in group F was 40.73 ± 9.77 years. The mean weight in group L was 69.63 ± 8.92 kg and in group F was 70.6 ± 9.20 kg. In group L, male to female ratio was 26:14 whereas in group F it was 28:12. Mean heart rate and mean arterial pressure did not show significant change over time between groups. Time required for intubation was significantly less (22.45 ± 4.12 secs) in laryngoscopy group versus Fiber-Optic Bronchoscope group (44.68 ± 5.88 secs). Conclusion: In conclusion we can say that our study demonstrated that using laryngoscope or Fiber-Optic Bronchoscope for orotracheal intubation exhibits no difference in hemodynamic parameters and serves no added advantage in attenuating the stress response to intubation.

Keywords

• fiber optic bronchoscope
• hemodynamics
• intubation
• laryngoscopy
• stress response