“…The development of myotonia represents an important problem for anesthesia because, if laryngeal and respiratory muscles are involved, intubation can be difficult or even impossible 17 . Potential trigger factors include the surgery, hypothermia, tremors, electrical or mechanical stimulation during or after the surgery, drugs (clofibrate, propranolol, potassium), and anesthetic agents, such as succinylcholine, and anticholinesterase drugs 18 . Treatment is mainly preventive, avoiding all triggering factors.…”