Patients with the rs121918596 del/del genotype may develop malignant hyperthermia when treated with volatile anesthetics (desflurane, enflurane, halothane, isoflurane, methoxyflurane, sevoflurane) and/or succinylcholine as compared to patients with the GAG/GAG genotype. Other genetic or clinical factors may also influence the risk for malignant hyperthermia.