The Science Journal of the American Association for Respiratory Care

Preferred Nomenclature for Mechanical Ventilation for
Manuscripts Submitted to RESPIRATORY CARE
Preferred Term Preferred Symbol Intended Meaning Similar Terms to be Avoided
Volume Controlled Continuous Mandatory Ventilation VC-CMV Mechanical ventilation with preset tidal volume and inspiratory flow. Every breath is mandatory (i.e.,inspiration is patient or machine trigged and machine cycled). Assist/Control, A/C, CMV, Volume Assist/Control, Volume Control, Volume Limited Ventilation, Volume Controlled Ventilation, Controlled Ventilation, Volume Targeted Ventilation
Volume Controlled Intermittent Mandatory Ventilation VC-IMV Mechanical ventilation with preset tidal volume and inspiratory flow. Spontaneous breaths (i.e., inspiration is patient triggered and patient cycled) can exist between mandatory breaths. Synchronized Intermittent Mandatory Ventilation, SIMV
Pressure Controlled Continuous Mandatory Ventilation PC-CMV Mechanical ventilation with preset inspiratory pressure and inspiratory time. Every breath is mandatory (ie, patient or machine trigged and machine cycled). Assist/Control, A/C, CMV, Pressure Assist/Control, Pressure Control, Pressure Limited Ventilation, Pressure Controlled Ventilation, Pressure Targeted Ventilation
Pressure Controlled Intermittent Mandatory Ventilation PC-IMV Mechanical ventilation with preset inspiratory pressure and inspiratory time. Spontaneous breaths (i.e., inspiration is patient triggered and patient cycled) can exist between mandatory breaths. Synchronized Intermittent Mandatory Ventilation, SIMV
Continuous Spontaneous Ventilation CSV Any mode of mechanical ventilation where every breath is spontaneous (i.e., patient triggered and patient cycled) Spont
Mandatory Breath None A breath type during mechanical ventilation for which inspiration is machine triggered and/or machine cycled. Machine breath, mechanical breath
Spontaneous Breath None A breath type for which inspiration is both patient triggered and patient cycled. Applies to assisted or unassisted breathing. N/A
Assisted Ventilation or Breath None Ventilation or breath for which a machine provides some or all of the work of breathing. Patient triggered ventilation or breath
Patient Triggered Breath None A breath that is initiated by the patient, independent of ventilator settings for frequency. Patient assisted breath, assisted breath
Autotriggering None Unintended initiation of breath delivery by the ventilator, e.g., by an external disturbance such as movement of the breathing tube or an inappropriate trigger sensitivity setting. Autocycling