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. 2018 Jan-Mar;12(1):262-266.
doi: 10.4103/aer.AER_226_17.

Comparison of Esmolol and Dexmedetomidine for Suppression of Hemodynamic Response to Laryngoscopy and Endotracheal Intubation in Adult Patients Undergoing Elective General Surgery: A Prospective, Randomized Controlled Double-blinded Study

Sandeep Sharma  1 , Om Prakash Suthar  1 , M L Tak  1 , Abhilasha Thanvi  1 , Naveen Paliwal  1 , Rakesh Karnawat  1
Affiliations

Comparison of Esmolol and Dexmedetomidine for Suppression of Hemodynamic Response to Laryngoscopy and Endotracheal Intubation in Adult Patients Undergoing Elective General Surgery: A Prospective, Randomized Controlled Double-blinded Study

Sandeep Sharma et al. Anesth Essays Res. 2018 Jan-Mar.

Abstract

Context: Laryngoscopy and endotracheal intubation lead to strong sympathetic response which may precipitate arrhythmias, myocardial ischemia and cerebrovascular accidents in patients with preexisting cardiovascular disease.

Aims: This study was aimed to compare the effect of dexmedetomidine and esmolol on hemodynamic response to laryngoscopy and endotracheal intubation in patients undergoing elective surgery under general anesthesia.

Settings and design: This was a prospective, randomized controlled double-blinded study.

Materials and methods: A total of ninety patients were selected and randomized into three groups of thirty patients each: Group C received infusion of 20 mL 0.9% normal saline (NS) over 10 min, Group D received infusion of dexmedetomidine 1 μg/kg diluted in 20 mL NS over 10 min, and Group E received infusion of esmolol 1.5 mg/kg diluted in 20 mL NS over 10 min. Three minutes after the completion of infusion, patients were induced with general anesthesia. Baseline parameters such as heart rate (HR), systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial blood pressure (MAP), and rate pressure product (RPP) were recorded before administration of study drugs and at 1, 3, 5, 7, and 10 min after intubation.

Statistical analysis used: One-way ANOVA was used for comparison among the groups and unpaired t-test was used for comparison within the groups along with Tukey's test for post test analysis.

Results: Mean HR, SBP, DBP, MAP, and RPP values remained significantly lower in Group D than that of Group C and Group E at all time intervals up to 10 min after intubation.

Conclusions: Both dexmedetomidine and esmolol suppressed the hemodynamic response to intubation when compared to control group, but dexmedetomidine is more effective than esmolol in maintaining hemodynamic stability following laryngoscopy and intubation.

Keywords: Dexmedetomidine; endotracheal intubation; esmolol; hemodynamic response; laryngoscopy.

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Conflict of interest statement

There are no conflicts of interest.

Figures

Figure 1
Figure 1
Comparison of mean systolic blood pressure, diastolic blood pressure, and MAP among the three groups
Figure 2
Figure 2
Comparison of rate pressure product among the three groups
See this image and copyright information in PMC

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