Ventilator Settings Can Substantially Impact Patients' Comfort.

Area of Science:

• Critical Care Medicine
• Respiratory Therapy
• Patient Comfort Management

Background:

• Sedative use in mechanically ventilated patients can complicate care.
• Titration of ventilator settings is an emerging strategy to enhance patient comfort.

Purpose of the Study:

• To compare patient comfort levels in response to varying ventilator settings between patients with acute on chronic respiratory failure (ACRF) due to chronic obstructive pulmonary disease (COPD) and obesity hypoventilation syndrome (OHS).

Main Methods:

• Randomized controlled trial involving patients with ACRF (COPD or OHS).
• Patients were exposed to varying ventilator modes, tidal volumes, and inspiratory flows.
• Physiologic variables and comfort (Borg scale) were recorded for each setting.

Main Results:

• No single ventilator setting consistently improved comfort between COPD and OHS groups.
• Patients reported a wide range of comfort (up to 8 Borg points) across settings.
• OHS patients showed increased tachypnea compared to COPD patients under specific settings; no correlation found between comfort and vital signs.

Conclusions:

• Ventilator settings can substantially influence patient comfort.
• Further research is needed to establish evidence-based guidelines for optimizing ventilator settings to improve patient comfort in diverse patient populations.