Vecuronium bromide in anaesthesia for laparoscopic sterilization

Area of Science:

• Anesthesiology
• Pharmacology

Background:

• Neuromuscular blocking agents like vecuronium bromide are crucial for endotracheal intubation and surgical procedures.
• Optimizing the timing of intubation after neuromuscular blockade administration is essential for patient safety and procedural success.

Purpose of the Study:

• To evaluate the impact of delayed tracheal intubation on intubating conditions following vecuronium bromide administration.
• To assess the efficacy of vecuronium bromide for neuromuscular blockade during laparoscopic sterilization.

Main Methods:

• 52 patients undergoing laparoscopic sterilization received vecuronium bromide (70 µg/kg) for neuromuscular blockade.
• Anesthesia was maintained with 67% nitrous oxide in oxygen.
• Neuromuscular blockade was monitored using train-of-four stimulation of the adductor pollicis.
• Intubating conditions were assessed at 90 seconds in the first 33 patients and at 150 seconds in the subsequent 19 patients.

Main Results:

• Intubating conditions were poor when assessed at 90 seconds post-vecuronium administration.
• Significantly improved intubating conditions were observed when intubation was delayed to 150 seconds (P < 0.05).
• Operating conditions were good in all but two patients, and residual blockade was rapidly antagonized with neostigmine.

Conclusions:

• A delay of 150 seconds for tracheal intubation after vecuronium bromide administration optimizes intubating conditions.
• Vecuronium bromide provides effective neuromuscular blockade for laparoscopic sterilization, with rapid reversal by neostigmine.