Table 2.
CPB equipment used.
| Arterial pump | |
| Roller | 29.6% |
| Centrifugal | 70.4% |
| Venous reservoir | |
| Hard-shell venous reservoir | 92.1% |
| Soft-shell venous reservoir | 6.6% |
| Other | 1.3% |
| Vacuum system equipment | |
| Approved VAVD regulator | 95.5% |
| Vacuum line with negative pressure relief valve | 50.6% |
| Vacuum line with “Y” atmosphere vent line | 94.3% |
| Condensation trap | 95.5% |
| Positive pressure relief valve on reservoir | 98.6% |
| Negative pressure relief valve on reservoir | 59.4% |
| One-way flow valve between reservoir and oxygenator* | 56.1% |
| Vacuum regulator inspection and calibration as part of routine equipment maintenance | 44.1% |
CPB, cardiopulmonary bypass; VAVD, vacuum-assisted venous drainage.
*
Data were included for centrifugal pump users only.