When every second counts in critical care, Controlled Mandatory Ventilation (CMV) stands as the cornerstone of emergency mechanical ventilation. This fully supported mode ensures precise gas delivery when patients cannot breathe independently, making it indispensable in trauma, cardiac arrest, and post-operative recovery scenarios.
How CMV Works: A Three-Phase Process
Time-Triggered Inspiration
The ventilator initiates breaths at a preset rate (e.g., 12–20 breaths/min for adults), regardless of patient effort.
Ideal for unconscious or paralyzed patients, eliminating the need for spontaneous breathing triggers.
Volume-Delivered Expiration
Delivers a fixed tidal volume (e.g., 6–8 mL/kg for adults) to maintain alveolar recruitment.
Prevents lung collapse by ensuring consistent oxygen-CO2 exchange.
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