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Noninvasive ventilation in severe acute asthma.

Jhaymie L Cappiello1, Michael B Hocker2

  • 1Respiratory Care Services, Duke University Hospital jhaymie.cappiello@duke.edu.

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|May 1, 2014
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Summary

Noninvasive ventilation (NIV) can be a life-saving intervention for severe acute asthma, potentially preventing intubation. This case study highlights successful NIV application in a critically ill asthma patient, demonstrating its effectiveness and safety.

Keywords:
ARFasthmacapnographycontinuous albuterolintubationmechanical ventilationnoninvasivesedationventilation

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Area of Science:

  • Emergency Medicine
  • Pulmonology
  • Critical Care

Background:

  • Severe acute asthma management remains challenging, with noninvasive ventilation (NIV) use being controversial.
  • NIV may offer benefits in preventing endotracheal intubation for severe asthma exacerbations.

Observation:

  • A 35-year-old male presented with severe acute asthma, tachypnea, hypoxemia, and severe respiratory acidosis (pH 6.95, PaCO2 126 mm Hg).
  • Initial management included high-flow oxygen, bag-mask ventilation, and continuous albuterol infusion.
  • Noninvasive ventilation (NIV) was initiated at 12/5 cm H2O with an FiO2 of 0.40.

Findings:

  • NIV therapy resulted in a significant decrease in PaCO2 from 126 mm Hg to 63 mm Hg within 90 minutes.
  • The patient demonstrated clinical improvement, tolerated NIV for 4 hours, and required minimal sedation (lorazepam) for tolerance.
  • The patient was successfully extubated, transferred to the ICU, then general care, and discharged home within 3 days.

Implications:

  • This case suggests that NIV can be a safe and effective treatment for severe acute asthma, particularly in preventing intubation.
  • Close monitoring in a critical care setting and judicious use of sedatives like lorazepam are crucial for successful NIV application.
  • Further research into NIV protocols for severe acute asthma is warranted to establish its role in clinical practice.