Evaluation of a rapid sequence induction technique in dogs with or without rocuronium

Area of Science:

• Veterinary Anesthesiology
• Comparative Medicine

Background:

• Rapid sequence induction (RSI) is a critical anesthetic technique.
• Rocuronium is a neuromuscular blocking agent used in anesthesia.

Purpose of the Study:

• To evaluate the efficacy of rocuronium in improving endotracheal intubation speed and quality during RSI in healthy dogs.
• To assess the impact of rocuronium on physiological parameters during RSI.

Main Methods:

• A randomized, crossover experimental study involving six healthy Beagles.
• Anesthesia was induced with propofol, followed by either saline (control) or rocuronium.
• Intubation time and conditions were assessed; physiological parameters (PaO2, PaCO2, pH, cortisol) were monitored.

Main Results:

• Rocuronium did not significantly improve intubation time or conditions compared to saline.
• Heart rate was significantly higher in the rocuronium group.
• RSI induced respiratory acidosis, but not hypoxemia or increased cortisol, independent of treatment.

Conclusions:

• Rocuronium provided no clinical benefit for RSI in healthy dogs when compared to propofol alone.
• RSI can lead to respiratory acidosis, necessitating careful monitoring.
• Spontaneous ventilation was rapidly restored in all dogs.