synchronized intermittent mandatory ventilation
Also written as: SIMV — Synchronized Intermittent Mandatory Ventilation
Ventilatory mode that delivers mandatory breaths synchronized with patient effort while allowing spontaneous breathing between cycles.
Full Definition
Synchronized intermittent mandatory ventilation (SIMV) is a mechanical ventilation mode commonly used in pediatric anesthesia and critical care. The ventilator delivers a preset number of mandatory breaths per minute, but these breaths are synchronized with the patient's spontaneous respiratory efforts when detected. Between mandatory breaths, the patient can breathe spontaneously at their own rate and tidal volume. This mode is particularly useful in pediatric patients during emergence from anesthesia or when weaning from mechanical ventilation, as it provides respiratory support while maintaining some degree of patient control.
Usage
Usage note: Often abbreviated as SIMV; hyphenate when used as compound modifier.
In Context
- "The patient was transitioned to synchronized intermittent mandatory ventilation during emergence to facilitate spontaneous breathing efforts." — Anesthesia record
- "SIMV mode allowed the child to participate in ventilation while still receiving adequate respiratory support." — Respiratory therapy note