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Parkinson's disease with orthostatic hypotension: analyses of clinical characteristics and influencing factors.

Neurological Research 2019 April 29
OBJECTIVES: This study was designed to investigate clinical symptoms and blood pressure (BP) characteristics in Parkinson's disease (PD) with orthostatic hypotension (OH), and to figure out the influencing factors of PD with OH (PD-OH).

METHODS: Total 150 PD patients were divided into PD-OH and PD with no OH (PD-NOH) groups based on BP value. Series of scales were used to evaluate clinical symptoms. Twenty-four-hour ambulatory BP monitoring was adopted.

RESULTS: Total 49 PD patients (32.67%) were with OH. PD-OH group had significantly older age, longer disease duration, more diabetes cases, higher levels of fasting blood glucose, higher levels of hemoglobin A1c (HbA1c) and higher levodopa-equivalent daily doses (P < 0.05). Motor symptoms and non-motor symptoms, including autonomic dysfunction, fatigue and cognitive impairment indicated by significantly changed scores of related scales were found in PD-OH group (P < 0.05). PD-OH group had increased BP variability (BPV) and a higher proportion of non-dipper BP pattern (P < 0.05). Binary logistic regression analysis showed that age (B, 0.064; 95% CI, 1.007 ~ 1.128; P < 0.05), HbA1c (B, 1.091; 95% CI, 1.158 ~ 7.648; P < 0.05), and systolic BPV (B, 0.138; 95% CI, 1.004 ~ 1.312; P < 0.05) were independent related factors for PD-OH group. The PD-OH group had significantly compromised daily activities and quality of life (P < 0.05).

CONCLUSION: Older age, higher levels of HbA1c and increased systolic BPV were the influencing factors of PD-OH patients. Daily activities and quality of life of PD-OH patients were fairly compromised.

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