Incidence of oxygen desaturation during oral surgery outpatient procedures

Author(s): Dolwick, M. F., Gravenstein, N., Paulus, D. A.

Journal/Book: J Oral Maxillofac Surg. 1989; 47: 147-9.

Abstract: The frequency, severity, and duration of oxygen desaturation during oral surgical procedures in outpatients was measured. Sixty patients divided into six groups received either lidocaine; lidocaine, diazepam, and meperidine; lidocaine, diazepam, meperidine, and headphone music; lidocaine, diazepam, meperidine, and nitrous oxide; lidocaine, diazepam, meperidine, methohexital, and nitrous oxide; or lidocaine and nitrous oxide. Forty-three percent of the 30 patients who did not receive supplemental oxygen experienced clinically significant oxygen desaturation (greater than 5%) with a mean duration of 4.6 minutes. Only 13% of the patients who received supplemental oxygen had significant desaturation ranging from ten seconds to 12.3 minutes with a mean duration of 1.4 minutes. An unexpected finding was hypoxia in patients receiving only lidocaine anesthesia.

Keyword(s): Adolescence. Adult. Anesthesia, Dental/adverse effects. Anoxemia/chemically induced. Blood Pressure Determination. Diazepam/adverse effects. Human. Lidocaine/adverse effects. Meperidine/adverse effects. Methohexital/adverse effects. Middle Age. Monitoring, Physiologic. Nitrous Oxide/adverse effects. Oximetry. Oxygen/administration & dosage/blood. Random Allocation

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