In ARDS during pregnancy, what ventilation strategy is recommended?

In ARDS during pregnancy, what ventilation strategy is recommended?

• A. Low tidal volume ventilation with adequate oxygenation
• B. High tidal volumes to avoid atelectasis
• C. No mechanical ventilation; only supplemental oxygen
• D. High PEEP without lung-protective strategy

Answer: (A)

Protecting the lungs with a lung-protective ventilation approach is essential in ARDS during pregnancy. The goal is to minimize ventilator-induced lung injury by using low tidal volumes—about 4–6 mL per kilogram of predicted body weight—while keeping plateau pressures under 30 cm H2O. Adequate oxygenation is achieved with the lowest possible fraction of inspired oxygen (FiO2) and appropriate PEEP to keep alveoli open without overdistension. In pregnancy, this balance is especially important because lung mechanics are altered and oxygen needs are higher, so you want to sustain oxygen delivery to both mother and fetus while avoiding further lung injury. This strategy—low tidal volumes with careful PEEP and monitoring—is preferred because it addresses the underlying biology of ARDS and reduces the risk of worsening lung injury. Using high tidal volumes worsens lung injury by overdistending the alveoli, which is why it’s not recommended. Relying on supplemental oxygen alone doesn’t treat the alveolar collapse and stiff lungs seen in ARDS. Applying high PEEP without a lung-protective framework can cause hemodynamic instability and doesn’t provide the protective ventilation that improves outcomes.

Protecting the lungs with a lung-protective ventilation approach is essential in ARDS during pregnancy. The goal is to minimize ventilator-induced lung injury by using low tidal volumes—about 4–6 mL per kilogram of predicted body weight—while keeping plateau pressures under 30 cm H2O. Adequate oxygenation is achieved with the lowest possible fraction of inspired oxygen (FiO2) and appropriate PEEP to keep alveoli open without overdistension. In pregnancy, this balance is especially important because lung mechanics are altered and oxygen needs are higher, so you want to sustain oxygen delivery to both mother and fetus while avoiding further lung injury. This strategy—low tidal volumes with careful PEEP and monitoring—is preferred because it addresses the underlying biology of ARDS and reduces the risk of worsening lung injury.

Using high tidal volumes worsens lung injury by overdistending the alveoli, which is why it’s not recommended. Relying on supplemental oxygen alone doesn’t treat the alveolar collapse and stiff lungs seen in ARDS. Applying high PEEP without a lung-protective framework can cause hemodynamic instability and doesn’t provide the protective ventilation that improves outcomes.