Factors related to orthostatic hypotension in Parkinson's disease.
ncbi.nlm.nih.gov/m/pubmed/2...
CONCLUSION: OH was significantly related to older age, polypharmacy and amantadine or diuretics intake, while entacapone exposure appeared to reduce the risk of OH. Low concordance between OH and orthostatic symptoms was observed.
Orthostatic Hypotension in Patients with Parkinson's Disease and Atypical Parkinsonism.
ncbi.nlm.nih.gov/pmc/articl...
Predictably, symptomatic OH is more common in PD patients with posture and gait instability phenotype compared to those with the tremor-dominant variety of the disease [16, 17].