Buccal cavity hemineglect syndrome
Robert Pogorzelski, Alina Kułakowska, Adam Sadzyński, Dorota Halicka, Wiesław Drozdowski
Background and purpose: Hemineglect is a group of behavioural symptoms in a person with right hemispheric (mostly vascular) lesion. The aim of the study was to determine whether there are, besides other hemineglect syndrome symptoms, signs of buccal hemineglect syndrome in patients with right hemispheric stroke lesion. Material and methods: The reference population comprised 20 patients (12 female and 8 male), aged 51-78 years after right hemispheric stroke. Control group consisted of 20 age and sex matched people after left hemispheric stroke. They had no speech disturbances in a degree making verbal contact or fulfilling protocol specific tests impossible. Patients with multiple stroke history, pseudobulbar syndrome, buccofacial apraxia, mental impairment, dementia and severe facial nerve paresis were excluded. All patients were examined after the acute phase of stroke. Motor deficit was assessed using neurological examination and was based on National Institute of Health Stroke Scale. Evaluation of spatial hemineglect was done using visual, motor tests and perception tests (reading, writing and body image tests). Anosognosia was assessed using specially selected test procedures. Evaluating buccal hemineglect we performed: chewing and swallowing organs examination with extinction assessment, exploration of taste, exploration of swallowing to check for dribbling, choking, stasis of the saliva or food in a mouth cavity. Results: Buccal hemineglect was usually concomitant with other hemineglect symptoms resulting from the lesion of the right hemisphere. Clinical signs associated with this condition consisted of: impaired swallowing (food retention, food debris in the left side of buccal cavity, drooling from the left angle of the mouth and choking), taste and sensory disturbances in the left hemibuccal space. These disturbances were incorrectly diagnosed initially. Conclusions: Buccal hemineglect is frequent phenomenon in subjects with other hemineglect syndrome symptoms. Proper rehabilitation can reduce the number of complications and greatly improve the neglected functions.