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In Table 2, the normal values of the SBPV are depicted in the time domain together with the patient's values.
Elaborate studies of autonomic cardiovascular function of patients with HAS without OH are limited [5-7] and, as far as we know, none of these have assessed cardiovascular variability (HRV and SBPV) in the frequency domain.
Paeoniflorin Enriched Extract Decreases Long- and Short-Term Blood Pressure Variability of SBPV, DBPV, and MBPV after Administrating for Seven Weeks.
Long-term administration of PG could not only significantly reduce the 24 h blood pressure but also decrease BPV (SBPV, DBPV, and MBPV).
Caption: Figure 5: Effect on long- and short-term blood pressure variability of SBPV, DBPV, MBPV, and HRV after being intervened by paeoniflorin enriched extract (PG) at one time.
Caption: Figure 7: Effect on long- and short-term blood pressure variability of SBPV, DBPV, MBPV, and HRV after being intervened by paeoniflorin enriched extract (PG) for seven weeks.
Similarly, all of the indices of 24 h SBPV were significantly associated with the IMT (r = 0.399, P = 0.002; r = 0.376, P = 0.003; r = 0.339, P = 0.008, resp.).
24 h SBPV (SD), 24 h DBPV (CV), and daytime SBPV (ARV) presented the highly linear correlations with carotid IMT, which were shown in Figure 2.
In the multiple regression models (model 1 to model 3), we set carotid IMT as dependent variable and daytime, nighttime, 24 h SBPV, and DBPV evaluated with different BPV indices as independent variables, respectively.
Moreover, from the multiple linear regression models using different indices of BPV as the independent factors, we pointed out that daytime SBPV in ARV index had generally stronger relationship with IMT than SD or CV.
In our study, the results of correlation analysis were in agreement with their studies, mainly for the relationship between SBPV and IMT.
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