期刊
JOURNAL OF THE AMERICAN HEART ASSOCIATION
卷 9, 期 7, 页码 -出版社
WILEY
DOI: 10.1161/JAHA.119.014688
关键词
baroreflex; blood pressure; blood pressure measurement; monitoring; falls; frailty; geriatrics; orthostatic hypotension
资金
- perspective grant (NeuroCIMT) of the Applied and Engineering Sciences part of the Netherlands Organization for Scientific Research (NWO, Utrecht, the Netherlands) [14901]
- Ministry of Economic Affairs
- European Union [689238, 675003]
BACKGROUND: The relationship between orthostatic hypotension and clinical outcome in older adults is poorly understood. Blood pressure drop rate (ie, speed of blood pressure drop) may particularly reflect the imposed challenge to the baroreflex and the associated clinical outcome (ie, frailty and number of falls). This study aimed to compare orthostatic blood pressure drop rate and drop magnitude with regard to their association with frailty and number of falls. METHODS AND RESULTS: Blood pressure was measured continuously during a standardized active stand task in 168 patients (mean age 81.4 +/- 7.0; 55.4% female) who visited a geriatric outpatient clinic for cognitive or mobility problems. The association of orthostatic blood pressure drop rate, blood pressure drop magnitude, and baroreflex sensitivity (ie, increase in heart rate divided by systolic blood pressure drop magnitude) with frailty (Fried criteria and 4 frailty markers) and self--reported number of falls was assessed using linear regression models, adjusting for age and sex. Systolic blood pressure drop rate had the strongest association with frailty according to the 4 frailty markers (ss 0.30; 95% CI, 0.11- 0.49; P=0.003) and number of falls (ss 1.09; 95% CI, 0.19-1.20; P=0.018); diastolic blood pressure drop magnitude was most strongly associated with frailty according to the Fried criteria (ss 0.37; 95% CI, 0.15- 0.60; P<0.001). Baroreflex sensitivity was associated with neither frailty nor number of falls. CONCLUSIONS: Orthostatic blood pressure drop rate was associated with frailty and falls and may reflect the challenge to the baroreflex rather than drop magnitude.
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