Lockjaw

Trismus is a sudden involuntary contraction of the masticatory muscles. A brief attack of suffocation and a shortening of the time of closing the teeth within a few seconds to several minutes can be either spontaneous and secondary after a strong muscle contraction during yawning, or involuntary. It is usually an accompanying sign of compression of the upper chest and neck, may be accompanied by fainting or loss of consciousness, and is observed in people with reduced intracranial pressure. This syndrome is rare. The greatest prevalence of trismus is usually observed in early childhood, during childbirth (from birth to infancy) or in children with serious skull injuries. In practice, however, the condition can occur in all age groups. Trismus also occurs in the following cases:

inflammatory diseases of the cerebral membranes;

Tick-borne arachnoiditis (pathogen: Borrelia transsepta);

cerebellar abscess; trismus and ticozella myoclonus: temporal lobe epilepsy; status epilepticus; development of a tumor or abscess in neurosyphilis; convulsions in hyperparathyroidism (see); peripetic seizure due to barbiturate poisoning; intracranial hematoma in a newborn or child (deficiency - trismus); traumatic brain injury in a child is accompanied by trismus; spastic trismus occurs as a result of spinal cord injury; cervical, causing circular movements