Association between beat-to-beat blood pressure variability and vascular elasticity in normal young adults during the cold pressor test
| Autor: | Wanqing Wu, Xin Liu, Lijie Ren, Dan Wu, Qian Chen, Zhifan Gao, Yufa Xia |
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| Rok vydání: | 2017 |
| Předmět: |
Adult
Male medicine.medical_specialty Sympathetic Nervous System Diastole Beat (acoustics) Observational Study Blood Pressure 030204 cardiovascular system & hematology 03 medical and health sciences Young Adult 0302 clinical medicine Vascular Stiffness Internal medicine Physical Stimulation medicine Humans Elasticity (economics) Young adult vascular elasticity A determinant Analysis of Variance business.industry Cold pressor test Blood Pressure Determination General Medicine Arteries Elasticity Cold Temperature Blood pressure Cross-Sectional Studies Anesthesia Cardiology Female blood pressure variability business 030217 neurology & neurosurgery total arterial compliance Recovery phase Research Article |
| Zdroj: | Medicine |
| ISSN: | 1536-5964 |
| Popis: | The beat-to-beat blood pressure (BP) monitoring parameters, such as average beat-to-beat BP, BP variability (BPV), could have an influence on the vascular elasticity. This study hypothesized that the elevated beat-to-beat BPV could evoke the reduction of the vascular elasticity independent of BP levels. We measured the beat-to-beat BP recordings and total arterial compliance (TAC), which was used to assess the vascular elasticity, in 80 young healthy adults during the cold pressor test (CPT). The CPT included 3 phases: baseline phase, cold stimulus phase, recovery phase. Six parameters were used to estimate BPV. In bivariate correlation analysis, TAC showed a significant correlation with systolic BP (SBP) and diastolic BP (DBP) in the cold stimulus phase; and 4 indices of SBP variability (SBPV) were associated with TAC (r = 0.271∼0.331, P ≤ 0.015) in the recovery phase; similarly, 2 indices of DBP variability (DBPV) were also correlated with TAC (r = 0.221∼0.285, P ≤ 0.048) in the recovery phase. In multivariate regression analysis, DBPV (β = 0.229, P = 0.001) was a determinant of TAC independent of average DBP, sex, and weight. In addition, both beat-to-beat BP and BPV values increased in the cold stimulus phase (P |
| Databáze: | OpenAIRE |
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