Table 1

Abbreviations and characteristics of ventilators evaluated

VentilatorAbbreviationIPAP range, cmH2OAdjustable trigger/cycling sensitivitiesRamp functionDigital displayRemote controlAlarms
BiPAP S/T-DBiPAP S/T or T4–20No/NoNoNoNoNo; high/low pressure alarms can be added
MNPB 3353353–35Yes/YesYesYesYesDisconnect, leak
O′NYXO′NYX3–40Yes/YesNoYesNoDisconnect, VT out of set limits
Quantum PSVQuantum2–30No/NoYesYesYesDisconnect, pressure
PLV 102*PLV0–100Yes/NoNoYesNoMultiple, inclusing high/low pressure, and disconnect
Siemens 900CSiemens0–100Yes/NoNoYesNoHigh pressure, high/low minute ventilation
  • IPAP: inspiratory positive airway pressure; BiPAP: bi-level positive airway pressure; S/T spontaneous/timed; T: timed; MNPB: Mallinkrodt Nellcor Puritan Bennet; VT: tidal volume; PSV: pressure support ventilator; *: a volume-targeted ventilator

  • available on S/T-D with remote control

  • assist controlled pressure ventilation is the pressure-targeted mode, and the O'NYX also has a volume-targeted mode

  • pressure level above positive end-expiratory pressure (PEEP)

  • alarm not active during spontaneous pressure support and PEEP mode. For ventilator manufacturers see text