Orthostatic hypotension and attention in Parkinson’s disease with and without dementia

To compare frequency and degree of orthostatic hypotension (OH) in Parkinson’s disease (PD) and Parkinson’s disease with dementia (PDD) and its effect on attention and word fluency, blood pressure (BP) and heart rate changes during tilt were determined in 10 PD and 8 PDD patients. Attention and word fluency were evaluated in supine and tilted position using standard neuropsychological tests.