| Cardiology Research, ISSN 1923-2829 print, 1923-2837 online, Open Access |
| Article copyright, the authors; Journal compilation copyright, Cardiol Res and Elmer Press Inc |
| Journal website https://www.cardiologyres.org |
Original Article
Volume 8, Number 6, December 2017, pages 276-279
Pulse Pressure Analysis to Guide Intraoperative Phlebotomy Prior to Cardiac Surgery
Tables
| Variable | Mean (SD) or N (%) |
|---|---|
| aPerformed with aortoplasty (n = 2); with right ventricle to pulmonary artery conduit repair (n = 1). | |
| Age (years) | 22 (11) |
| Male gender | 15 (50%) |
| Height (cm) | 169 (11) |
| Weight (kg) | 71 (22) |
| Body mass index (kg/m2) | 24 (5) |
| Surgical procedure | |
| Pulmonary valve replacement | 6 (20%) |
| Aortic valve replacementa | 4 (13%) |
| Tricuspid valve replacement | 3 (10%) |
| Other | 17 (57%) |
| Tidal volume (mL/kg) | 7.6 (2.1) |
| Total blood withdrawn (mL/kg) | 8.6 (2.9) |
| Variable | Baseline, mean (SD) | End of phlebotomy, mean (SD) | Change from baseline to end of phlebotomy | |
|---|---|---|---|---|
| Difference in means (95% CI) | P-value | |||
| aData missing in three cases at baseline. bData missing in four cases at baseline and two cases at end of phlebotomy. NIRS: near-infrared spectroscopy; rSO2: cerebral oxygenation; PPV: pulse pressure variability; SVV: stroke volume variability. | ||||
| NIRS rSO2a | 74 (7) | 69 (8) | -5 (-2, -8) | < 0.001 |
| LiDCOb | ||||
| SVV% | 11 (6) | 12 (6) | 2 (-1, 5) | 0.143 |
| PPV% | 17 (12) | 17 (7) | 1 (-4, 6) | 0.624 |