Non-dipping nocturnal blood pressure and psychosis parameters in Parkinson disease

作者：Stuebner E; Vichayanrat E; Low D A; Mathias C J; Isenmann S; Haensch C A^*

来源：Clinical Autonomic Research, 2015, 25(2): 109-116.

DOI：10.1007/s10286-015-0270-5

• Circadian
• 24 h
• Psychosis
• Dipper
• Parkinson disease

Non-motor symptoms are increasingly recognized in Parkinson disease (PD) and include physical as well as psychological symptoms. A psychological condition that has been well studied in PD is psychosis. Cardiovascular autonomic dysfunction in PD can include a reversed or loss of blood pressure (BP) circadian rhythm, referred to as nocturnal non-dipping. The aim of this study was to determine the relationship between 24 h ambulatory blood pressure measurements (ABPM), i.e., absence or presence of nocturnal dipping, and psychosis scores in PD.
Twenty-one patiens with PD underwent 24 h ABPM using an autonomic protocol. A decrease in nocturnal mean arterial blood pressure of less than 10 % was defined as non-dipping. Patients were interviewed (including the brief psychiatric rating scale; BPRS) for the assessment of psychosis.
Eleven patients were dippers and 10 were non-dippers. BPRS scores were higher in non-dippers, who, on average, met the criteria for psychosis (mean non-dipper BPRS: 34.3 +/- A 7.3 vs mean dipper BPRS: 27.5 +/- A 5.3; cutoff for "mildly ill" 31). There was a correlation between BPRS scores and non-dipping, indicating that those patients who had a blunted nocturnal fall in BP were more prone to psychotic symptoms (Pearson's Correlation = 0.554, p = 0.009).
These results suggest that, among PD patients, a non-dipping circadian rhythm is associated with more severe symptoms of psychosis than is a dipping circadian rhythm. This association warrants further investigation.

• 出版日期2015-4