Intubation with propofol augmented with intravenous lignocaine

Area of Science:

• Anesthesiology
• Pharmacology

Background:

• Tracheal intubation can elicit a pressor response, a physiological stress reaction.
• Lidocaine (lignocaine) is sometimes used intravenously to mitigate this response before intubation.

Purpose of the Study:

• To evaluate the efficacy of intravenous lignocaine pretreatment in improving tracheal intubation quality.
• To assess the impact of lignocaine on the pressor response to tracheal intubation.

Main Methods:

• A double-blind study involving sixty patients (ASA grade 1, aged 18-55 years).
• Anesthesia induced with propofol (2.5 mg/kg) after pretreatment with either lignocaine (1.5 mg/kg) or isotonic saline.
• Assessment of tracheal intubation quality and pressor response to intubation.

Main Results:

• No statistically significant differences were observed in the quality of tracheal intubation between the lignocaine and saline groups.
• The pressor response to tracheal intubation showed no significant variation between the treatment groups.

Conclusions:

• Intravenous lignocaine pretreatment does not appear to offer significant advantages over saline for improving tracheal intubation quality or blunting the pressor response in this patient population.
• Further research may be warranted to explore alternative or adjunct methods for managing the physiological stress of tracheal intubation.