Author/Authors :
SAEIDI NEZHAD Mohammad Bagher نويسنده , Alikhani Rosa نويسنده Psychiatric Research Centre, Roozbeh Hospital, Tehran University of Medical Sciences, Tehran, Iran. Alikhani Rosa , Sabouri Seyed Mehdi نويسنده Department of Anesthesiology, Sina Hospital, Tehran University of Medical Sciences, Tehran, IR Iran , Aminnejad Reza نويسنده Department of Anesthesiology, Shahid Beheshti University of Medical Sciences, Tehran, Iran , Hormati Ahmad نويسنده Assistant Professor of Gastroenterology and Hepatology, Qom Digestive Disease Research Center, Qom University of Medical Sciences, Qom, IR Iran
Abstract :
Masseter muscle rigidity is a known complication of drugs such as succinylcholine and volatile agents. However, muscle rigidity is an uncommon complication of propofol. We report the case of a 56-year-old ASA-PS class I woman refereeing for colonoscopy due to chronic constipation under deep intravenous sedation. She suffered masseter spasm after the injection of propofol. Masseter spasm should not be considered limited to special drug groups. In any case of difficult mouth opening, masseter spasm should be kept in mind and deepening of anesthesia or complete blockade of neuromuscular junction should be considered by the use of non-depolarizing muscle relaxants.
