Table 2.
Reported Comparisons Between Central Systolic Blood Pressure (cSBP) and Radial Second Systolic Blood Pressure (rSBP2)
| Source | Pauca AL et al., 2004 [34] | Takazawa K et al., 2007 [35] | Hickson SS et al., 2009 [36] | |||
|---|---|---|---|---|---|---|
| Study* | CABG (a) | baseline (b) | drug intervention (c) | noninvasive (d) | invasive (e) | |
| Subjects | treated IHD/HT pts | cardiac cath. IHD pts | cardiac cath. IHD pts | selected from ACCT cohort | cardiac cath. pts | |
| Measurement condition | anesthesia | incl. treated CVD** | nicorandil iv | incl. treated CVD** | incl. treated CVD** | |
| Total n | 50 | 18 | 18 | 10269 | 38 | |
| Age (years) | 41-87 (70% of pts >60) | 61±10 | 61±10 | 60±20 | 60±9 | |
| rSBP2 determination | Successful n | 21 | 16 | 16 | 10082 | 34 |
| Success rate | 47% | 100% | 100% | 98% | 90% | |
| Determination method/device | inspection | HEM-9000AI® | HEM-9000AI® | SphygmoCor® | SphygmoCor® | |
| Other exclusion (n) | 5 | 2 | 2 | |||
| Measurement method (device) | cSBP | invasive (FF-cath) | MM-GW (PressureWire®) | MM-GW (PressureWire®) | GTF-based estimation (SphygmoCor®) | invasive (MM-cath) |
| rSBP2 | invasive (FF-cath) | tonometry (HEM -9000AI) | tonometry (HEM -9001AI) | tonometry (SphygmoCor®) | tonometry (SphygmoCor®) | |
| Calibration | cSBP | invasive (FF) | invasive (MM) | invasive (MM) | noninvasive (BrBP) | invasive (MM) |
| rSBP2 | invasive (FF) | noninvasive (BrBP) | noninvasive (BrBP) | noninvasive (BrBP) | invasive (MM) | |
| Correlation | r | NA | 0.95 | 0.93 | 0.99 | 0.92 |
| p | NA | <0.001 | <0.001 | <0.001 | <0.001 | |
| B-A plot difference | Mean (mmHg) | 1 | -11 | -12 | 1 | 2 |
| SD (mmHg) | 2 | 7 | 8 | 4 | 6 | |
ACCT = Anglo-Cardiff Collaborative Trial; B-A plot = Bland-Altman plot analysis; BrBP = brachial cuff blood pressure; cath. = catheterization; CVD = cardiovascular disease; FF = fluid-filled; FF-cath = FF catheter-manometer; IHD = ischemic heart disease; iv = intravenous administration; MM = micromanometer; MM-Cath = MM-tipped catheter; MM-GW = MM-tipped guidewire; NA = not available; pts = patients.
*
Superscripts (a) ~ (e) correspond to those in Fig. (5).
**
Including chronically treated patients with cardiovascular disease.