Table 5.

Institutional checklist items pertaining to VAVD.

Item	Compliance (%)
Vacuum regulator operational*	53.7
Cardiotomy positive-pressure relief valve present*	55.1
Negative pressure relief valve(s) unobstructed*	33.8
System has been engaged and tested	54.4
Pressure transducers zeroed	81.2
Reservoir pressure reading correlates with vacuum regulator’s set vacuum	26.5
Alarms are on and limits are set properly	71.0

VAVD, vacuum-assisted venous drainage.

^*Checklist item recommended by AmSECT (14)