Table 7.

Respondent compliance to literature recommendations.

Literature Recommendation	Compliance (%)
The use of a PPRV on the reservoir (1,9,10,20–23)	98.6
The use of a negative pressure relief valve on the reservoir (1,9,20–23)	59.4
The use of an approved VAVD regulator (1,9,10,20–23)	95.5
Vacuum line including a Y atmosphere vent line (9,10,20,21)	94.3
Vacuum line including a moisture trap (9,10,20,21)	95.5
Routine vacuum regulator calibration and maintenance (21)	42.9
The use of a real-time pressure monitoring system (9,10,20–23)	88.1
The use of alarms for positive pressure (9,10)	79.0
The use of alarmrs for both positive and excessive negative pressures (20,21)	51.6

VAVD, vacuum-assisted venous drainage.