Which strategy is commonly used for a patient with status asthmaticus who requires ventilation?

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Controlling synchrony between the patient and the ventilator is essential in status asthmaticus. Severe bronchospasm creates high airway resistance and dynamic hyperinflation, so the goal is to let the ventilator deliver breaths without the patient fighting it and to minimize air trapping.

Paralyzing and sedating the patient achieves this by eliminating spontaneous respiratory effort, allowing you to set the ventilator to deliver breaths at a low tidal volume and with adequate expiratory time. With the patient passively on the ventilator, it's easier to avoid dynamic hyperinflation and to optimize gas exchange while bronchodilators and other therapies are delivered effectively through the circuit.

Increasing tidal volume to a high level is avoided because it increases the risk of worsening hyperinflation and barotrauma in obstructive airways. Using a high respiratory rate with a short expiratory time would reduce the time available for exhalation, promoting air trapping. Noninvasive ventilation isn’t universally ruled out, but in cases clearly needing a ventilator, the common approach is invasive ventilation with paralysis to achieve stable and controlled ventilation.