When is IMV commonly used?

IMV, or Intermittent Mandatory Ventilation, is commonly used for patients who are expected to return to spontaneous breathing soon. This mode of mechanical ventilation allows for a combination of mandatory breaths provided by the ventilator and spontaneous breaths taken by the patient. This approach supports patients during the weaning process from mechanical ventilation, promoting the gradual transition back to independent breathing.

The rationale for using IMV in this context is that it helps strengthen the patient’s respiratory muscles while ensuring adequate ventilation and oxygenation. It is particularly beneficial when clinicians anticipate that the patient's respiratory condition is improving, enabling careful monitoring and adjustment as the patient transitions toward full recovery or more independent breathing capabilities.

Other scenarios, such as emergencies, established respiratory failure, or chronic conditions requiring lifelong support typically involve different ventilatory strategies or modes more suited to those specific needs.