NARCOBIT: a newly developed inhalational anesthesia system for mice

Area of Science:

• Veterinary Anesthesiology
• Laboratory Animal Science
• Surgical Research

Background:

• Accurate anesthesia is crucial for reliable rodent research.
• Existing anesthetic systems lack integrated ventilation, potentially compromising experimental consistency.
• NARCOBIT is introduced as the first anesthetic system for mice and rats with a built-in ventilator.

Purpose of the Study:

• To evaluate the efficacy and physiological impact of NARCOBIT for inhalational anesthesia in mice.
• To assess hemodynamic parameters and blood gas stability during NARCOBIT-assisted anesthesia.
• To determine the suitability of NARCOBIT for maintaining controlled anesthesia depth in rodent models.

Main Methods:

• ICR mice underwent anesthesia with isoflurane and endotracheal intubation.
• Mechanical ventilation was initiated using the NARCOBIT system.
• Hemodynamic parameters (heart rate, mean arterial blood pressure, skin blood flow) and blood gas analysis were monitored during a 60-minute maintenance period.

Main Results:

• Heart rate and mean arterial blood pressure initially decreased post-anesthesia but remained stable during maintenance.
• Isoflurane concentration affected mean arterial blood pressure in a dose-dependent manner.
• Skin blood flow showed an insignificant increase; blood gas analysis indicated no hypoxia or hypercapnia.

Conclusions:

• NARCOBIT effectively provides inhalational anesthesia in mice, maintaining stable physiological parameters.
• The system's ability to adjust anesthetic concentration allows for precise control of anesthesia depth.
• NARCOBIT enhances the reliability of rodent experiments by ensuring consistent and controlled anesthesia.