Biomedical subjects
Publications and source records attributed to K Tjørstad.
This is a neurologist's opinion on how computerized tomography (CT) and magnetic resonance imaging (MRI) have improved the doctor's diagnostic possibilities changed patient/doctor relationship and increased the patients' expectations from diagnostic tests. How should the often conflicting interests of patients, society and doctors be handled?
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Another case of hemicrania continua is described--that of a 54-year-old woman, who for the past 3 years has had continuous, left-sided headache. Before this period she had non-continuous headache, otherwise resembling the present one, for 3-4 years. In the chronic stage, the headache fluctuates considerably. Indomethacin in a dosage of 150 mg/day abolishes the headache completely. In hemicrania continua, there may thus, as in chronic paroxysmal hemicrania, be a non-chronic stage, antedating the chronic one. The relative importance of the two stages cannot be assessed at present.
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The complications of cerebral angiography have been carefully recorded in 308 patients referred for cerebral angiography during one year, 1977--1978. The patients were randomly sampled for metrizamide or meglumine metrizoate as contrast medium according to a code list, and the two contrast media were compared using a double blind technique. The frequency of complications was the same for metrizamide and meglumine metrizoate. Metrizamide had the advantage that it caused no discomfort in selective external carotid angiography, while this was a problem with meglumine metrizoate. The study seemed to indicate that factors other than toxicity of the contrast medium are of major importance to explain the complications of cerebral angiography.