COMPARISON OF THE HAEMODYNAMIC STRESS RESPONSE AND TOTAL INTUBATION TIME AFTER INTUBATION WITH VIDEO VERSUS DIRECT LARYNGOSCOPE IN PATIENTS UNDERGOING CORONARY ARTERY BYPASS GRAFTING SURGERY AT TERTIARY CARE HOSPITAL, KARACHI

Abstract

INTRODUCTION: Endotracheal intubation involving conventional laryngoscopy elicits a haemodynamic response associated with increased heart and blood pressure. There are conflicting reports regarding the hemodynamic stress responses between the conventional Macintosh and video laryngoscopes. There is a paucity of studies regarding the same in cardiac surgical patients.

Objective:

1. To compare the haemodynamic stress response after intubation with video versus direct laryngoscope in patients undergoing coronary artery bypass grafting surgery at Tertiary Care Hospital, Karachi.
2. To compare the mean intubation time with video versus direct laryngoscope in patients undergoing coronary artery bypass grafting.

Study Design: Randomized control trial.

Study Setting: Study was conducted at Department of Anaesthesia, National Institute of Cardiovascular Diseases, Karachi.

Duration Of Study: Six months after approval from 20-12-20 till 20-06-21.

SUBJECTS AND METHODS: Data was prospectively collected from patients after taking a verbal consent. 244 patients who met the diagnostic criteria were included. Quantitative and qualitative data was collected, presented and analyzed Post stratification chi square test was applied taking p-value of ≤0.05 as significant.

Results: A total of 244 patients (122 in video and direct laryngoscope group) who met the inclusion and exclusion criteria were included in this study. Mean heart rate in video versus direct laryngoscope group was 78.06±6.10 and 84.30±5.14 respectively. P-value was 0.001. Mean arterial pressure in video versus direct laryngoscope group was 83.47±2.69 and 86±3.58 respectively. P-value was 0.001. Mean total intubation time in video versus direct laryngoscope group was 22.19±4.33 and 24.08±5.91 respectively. P-value was 0.001.

Conclusion: Video laryngoscope provides the better hemodynamic stability and ease of intubation and may be considered superior to conventional direct laryngoscope intubation in patients undergoing CABG.