Bansal, PranavJain, PranshiSingh, SaruSingh, Karamveer2020-01-022020-01-022019-03Bansal Pranav, Jain Pranshi, Singh Saru, Singh Karamveer. Succinylcholine Induced Masseter Muscle Spasm during Rapid Sequence Induction in a Pregnant Patient with Kypho- Scoliosis: Case Report. Annals of International medical and Dental Research. 2019 Mar; 5(2): 9-112395-28222395-2814http://imsear.searo.who.int/handle/123456789/188755Isolated masseter spasm is a rare entity encountered in patients with neuromuscular disorders and is frequently associated with use of succinylcholine or halogenated inhalational anaesthetic during induction. We present a case of 32-year old primigravida obstetric patient with kypho-scoliosis posted for lower segment caesarean section that developed masseter muscle spasm (MMS) following administration of a standard dose of succinylcholine. The episode resolved spontaneously after 6-7 min without progression to malignant hyperthermia. The report highlights that an event of masseter muscle spasm, though, rarely encountered in life-time practice of an anaesthesiologist, may be successfully managed by maintaining oxygenation and ventilation till the crisis is tided overSuccinylcholineMasseter muscle spasm (MMS)malignant hyperthermia (MH)Kypho-scoliosisSuccinylcholine Induced Masseter Muscle Spasm during Rapid Sequence Induction in a Pregnant Patient with Kypho- Scoliosis: Case ReportJournal ArticleIndiaProfessor & Head, Dept. of Anaesthesiology, BPS Govt. Medical College for Women, Khanpur Kalan, Sonipat, Haryana.DNB Resident 3rd year, Dept. of Anaesthesiology, BPS Govt. Medical College for Women, Khanpur Kalan, Sonipat, Haryana.Associate Professor, Dept. of Anaesthesiology, BPS Govt. Medical College for Women, Khanpur Kalan, Sonipat, Haryana.Senior Medical Officer, Dept. of Anaesthesiology, BPS Govt. Medical College for Women, Khanpur Kalan, Sonipat, Haryana.