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Deglutition In Myasthenia Gravis.
Published 1962 · Medicine
As dysphagia is such a frequent symptom in myasthenia gravis and in other conditions which may simulate it, examination of the patient's deglutition is very desirable. Cinefluorography using image intensification provides the most satisfactory way of doing this and recording the abnormalities. Points of special importance in the examination technique are stressed. The demonstrable abnormalities fall into two groups: (a) Those of the oral stage of deglutition due to asthenia of the muscles of the tongue and mouth. (b) Disturbances of the pharyngeal stage varying from weakness of the constrictors leaving residues in the recesses to complete atonicity and inability to elevate the larynx and invert the epiglottis. Of 23 cases examined only two had normal deglutition. Abnormal deglutition was actually demonstrated in four cases who had no subjective dysphagia and in a further four patients who admitted to slight intermittent dysphagia only on direct questioning. Eleven cases had asthenia of the oral stage asso...