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Biomedical subjects

S Blom

Publications and source records attributed to S Blom.

59 records · Page 4Linked to original sources
PubMedDate not supplied

Electromyography (EMG) and sialometry in the prognosis of Bell's palsy. A methodological study of early investigated, untreated patients.

The degree of remaining motor unit activity at maximal voluntary contraction of the face was examined in three of the facial muscles in 43 untreated patients with Bell's palsy. All the patients were examined within 10 days of the onset of the paresis. In 40 patients the EMG activity was compared with the clinical evaluation of the paresis and in 33 patients with the results from sialometry. EMG revealed remaining motor activity in several patients who had clinically total paresis. It was concluded that EMG can be used as a prognostic indicator at an early stage in Bell's palsy. Sialometry was found to predict the final outcome of the paresis with a slightly better accuracy than EMG.

Adolescent↗
PubMedDate not supplied

The relaxation time of the stapedius reflex in dystrophia myotonica (Steinert).

Eight patients with dystrophia myotonica (Steinert) were studied. They all had myotonia and pathological EMG and in some cases other signs of the disease. The 50% relaxation times of the stapedius reflex were significantly prolonged compared with a control group of 40 healthy, young subjects with normal hearing and normal stapedius reflex thresholds. The relaxation times could be well quantified and had a low standard deviation from the mean in the control group. In the patient group as well as in the control group only slight differences in the relaxation times were found between the frequencies 500 and 2000 Hz and between the simultaneously measured ipsilateral and contralateral reflexes. It was concluded that measurement of the relaxation time of the stapedius reflex increases the diagnostic possibilities in patients with myotonia.

Adolescent↗