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CLINICAL INVESTIGATION
Year : 2012  |  Volume : 56  |  Issue : 1  |  Page : 49-54

Oral pregabalin premedication for attenuation of haemodynamic pressor response of airway instrumentation during general anaesthesia: A dose response study


1 Department of Anaesthesiology & Critical Care, N.S.C.B. Subharti Medical College, Subhartipuram, Meerut, Uttar Pradesh, India
2 Department of Radiodiagnosis, Imaging and Interventional Radiology, N.S.C.B. Subharti Medical College, Subhartipuram, Meerut, Uttar Pradesh, India

Correspondence Address:
Kumkum Gupta
108, Chanakyapuri, Shastri Nagar, Meerut 250 004, Uttar Pradesh
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0019-5049.93344

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Background: The airway instrumentation of direct laryngoscopy and tracheal intubation are powerful noxious stimuli that should be attenuated by appropriate premedication, smooth induction and rapid intubation. The present study evaluated the safe and clinically effective dose of oral pregabalin premedication for attenuation of haemodynamic pressor response of airway instrumentation. Methods: A total of 90 normotensive adult consented patients aged 24-56 years, ASA grade I and II, of both gender were randomized into three treatment groups of 30 patients each. Group I received oral placebo, Group II oral pregabalin 75 mg and Group III oral pregabalin 150 mg 1 h prior to induction. Anaesthetic technique was standardized and all groups were assessed for pre-operative sedation, haemodynamic changes after the premedication, before and after induction, after laryngoscopy and intubation, along with intraoperative haemodynamic stability and post-operative side-effects. Results: Pre-operative sedation levels were higher with pregabalin premedication. Significant increase in heart rate and mean arterial pressure was observed in Groups I and II after airway instrumentation, while statistically significant attenuation of mean arterial pressure was seen in Group III. No significant decrease in heart rate was observed in any group. None of the patient has suffered from any post-operative side-effects, and no significant differences in the parameters of recovery and awakening time were observed. Conclusion: Oral pregabalin premedication has adequately sedated the patients. The haemodynamic pressor response of airway instrumentation was attenuated in a dose-related fashion. The premedicated patients were haemodynamically stable perioperatively without prolongation of recovery time and side-effects.


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