Management• Fifty-nine patients with onset of moderate to severe unimproving paralysis of less than 24 hours' duration were randomized into treatment (Dextran 40) and control groups, managed similarly except for the dextran. A strict effort to study a uniform cerebral process by rejecting patients with hypertension, insulin-dependent diabetes, potential emboli, and pulmonary or renal disease resulted in a small sample. Most patients considered for the study had begun to improve before the initial examination. All patients had spinal tap prior to the decision to randomize. Results were evaluated independently by the three authors over a three-week interval and tabulated after three years. A greater percentage of dextran-treated patients improved with respect to consciousness and strength in upper and lower extremities, but showed less restoration of language than the untreated patients. The differences in the two groups were not significant. One of 30 patients given dextran may have had a reaction.
Dangerous driving by drivers with diseases or disabilities such as dementia, epilepsy, or higher brain dysfunction is viewed as a problem In Worldwide. Given that the majority of such cases of dangerous driving are caused by impairments to cognitive function resulting from these conditions, there is an urgent need to create systems to detect drivers with cognitive functional disability and develop criteria for safe resumption of driving. Because driving would understandably be extremely dangerous for people with higher brain dysfunction, particularly in cases of attention dysfunction, we first examined the correlation between the Clinical Assessment of Attention (CAT), a theoretical task offering an index of attention function, and the cathode ray tube (CRT) driving aptitude test. We then examined correlations between CRT total score and CRT sub-scores. Only the time required for the position Stroop test had a moderate correlation (r = -0.43, p < 0.01) with CRT total score. Correlations between CRT total score and sub-scores relating to reaction speed showed a strong correlation. Other than reaction speed, items with significant moderate to strong correlations were also seen in the maintenance of moderate mental tension, attention distribution and situation processing skill.The present results show a correlation between CAT score and CRT total score, indicating that CRT total score places relative weights on speed of information processing and suppression of stereotypes, representing a very meaningful result.
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