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Spasm means "uncontrolled muscle contraction". The term blepharospasm ['blef-a-ro-spaz-m] can be applied to any abnormal blinking or eyelid tic or twitch resulting from any cause, ranging from dry eyes to Tourette's syndrome to tardive dyskinesia. The blepharospasm referred to here is officially called benign essential blepharospasm (BEB) to ...
Blepharospasm is often associated with dry eyes, but the causal mechanism is still not clear. [16] [8] Research in New York and Italy suggests that increased blinking (which may be triggered by dry eyes) leads to blepharospasm. [24] [25] A case control study in China found that blepharospasm aggravated dry eyes. [26]
Pharyngeal spasms, a more common source of a globus feeling, cause tension on the thyroid cartilage. They move up and down, left and right in the pharyngeal muscles. Both may be present. The patient complains about the signs and symptoms enumerated above. The pain causes dry deglutition and dry deglutition adds to the pain, triggering a vicious ...
muscles of the neck: Causes the head to rotate to one side, to pull down towards the chest, or back, or a combination of these postures. Blepharospasm: muscles around the eyes: The patient experiences rapid blinking of the eyes or even their forced closure causing functional blindness. Oculogyric crisis: muscles of eyes and head
Acute dystonic reactions: painful, muscular spasms of neck, jaw, back, extremities, eyes, throat, and tongue; highest risk in young men. [2] [10] Oculogyric crisis is a kind of acute dystonic reaction that involves the prolonged involuntary upward deviation of the eyes.
Laryngospasm is characterized by involuntary spasms of the laryngeal muscles. It is associated with difficulty or inability to breathe or speak, retractions, a feeling of suffocation, which may be followed by hypoxia-induced loss of consciousness. [2] It may be followed by paroxysmal coughing and in partial laryngospasms, a stridor may be heard ...
A neck spasm is an involuntary contraction of the muscles in the neck region. [1] Causes of neck spasm. The possible causes of neck spasms include: [citation needed]
An increase in neurotransmitters causes spasms to occur in the neck, resulting in spasmodic torticollis. [6] Studies of local field potentials have also shown an increase of 4–10 Hz oscillatory activity in the globus pallidus internus during myoclonic episodes and an increase of 5–7 Hz activity in dystonic muscles when compared to other ...