Which statement best reflects the role of noninvasive ventilation in acute cardiogenic pulmonary edema from heart failure?

• A. It is never used in acute heart failure.
• B. It should always be avoided in pulmonary edema.
• C. It replaces the need for diuretics.
• D. It can be used to support oxygenation in acute decompensated heart failure with pulmonary edema.

Answer: (D)

Noninvasive ventilation provides positive airway pressure without an invasive airway, and in acute decompensated heart failure with pulmonary edema it helps improve oxygenation and reduce the work of breathing. By delivering CPAP or BiPAP, it increases functional residual capacity, recruits collapsed alveoli, and improves gas exchange. The positive intrathoracic pressure also lowers left ventricular preload and afterload, which reduces pulmonary congestion and can stabilize hemodynamics. This makes NIV a useful adjunct to diuretics and vasodilators, not a replacement for them, and it can help avoid intubation in appropriately selected patients who are awake, cooperative, and hemodynamically stable. It’s not used in everyone and is limited by contraindications such as altered mental status, unprotected airway, or hemodynamic instability.