Table 3.
Monitoring and alarms pertaining to VAVD.
| Pressure monitoring | |
| On hard-shell reservoir | 81.7% |
| In venous line | 5.6% |
| None | 12.7% |
| Stand-alone pressure monitor | 22.7% |
| Integrated pump console transducer | 51.5% |
| (without servoregulation) | |
| Integrated pump console transducer | 25.8% |
| (with servoregulation) | |
| Alarms and alarm limits | |
| Positive pressure only | 27.4% |
| Excessive negative pressure only | 6.5% |
| Both positive and excessive negative pressure | 51.6% |
| None | 14.5% |
| Positive alarm limit (mmHg) | +1 to +50 (mean = +7.71) |
| Negative alarm limit (mmHg) | −40 to −100 (mean = −60.83) |
| Institutional protocol limiting negative pressure | |
| Yes | 61.2% |
| No | 38.8% |
| Institutional protocol limit (mmHg) | −40 to −100 (mean = −52.79) |
VAVD, vacuum-assisted venous drainage.