Magnesium sulfate administration in difficult laryngoscopy: An effective and safe method.

[PURPOSE] Difficult laryngeal exposure during laryngeal microsurgery and laser surgery is a major concern for otolaryngologists. This study evaluated the efficacy and safety of magnesium sulfate administration in difficult laryngeal exposure patients.

[STUDY DESIGN] Quasi-experimental design.

[MATERIALS AND METHODS] Forty adult patients scheduled for laryngeal microsurgery with difficult laryngeal exposure according to Cormack-Lehane (CL) classification were included. Magnesium sulfate 50% (20-30 mg/kg) was administered as a bolus injection. Laryngeal exposure and hemodynamic stability were evaluated before and after the intervention.

[RESULTS] CL grading was shown a statistically significant improvement after magnesium sulfate administration. There are no clinically significant changes in the mean arterial pressure, heart rate, and oxygen saturation levels in the patients who received magnesium sulfate for better laryngeal exposure.

[CONCLUSION] Magnesium sulfate is an effective and safe drug for better viewing in difficult laryngeal exposure patients.