Abstract
Introduction: Bronchial asthma with respiratory failure is a challenge for the intensivist as mechanical ventilation is often difficult due to bronchoconstriction and air-trapping. We describe a case of severe asthma with respiratory acidosis in a 10-year-old patient unresponsive to multipharmacologic broncholytic therapy. Only the initiation of sevoflurane inhalation resolved severe bronchoconstriction and dynamic hyperinflation, leading to complete recovery. Case presentation: A 10-year-old Caucasian boy was intubated and mechanically ventilated due to an asthmatic attack. Bronchoconstriction and dynamic hyperinflation were severe while multipharmacological broncholytic therapy was unsuccessful. Inhalation with sevoflurane via an anaesthesia machine was the key intervention leading to gradual resolving of severe hypercapnia and respiratory acidosis. Furthermore bilateral pupil dilation occurred during hypercapnia, but no intracranial pathology could be detected. The patient made an uneventful recovery. To our knowledge this is the first case where hypercapnia and respiratory acidosis were so profound and long lasting yet the patient survived without any damage. Conclusions: Inhalational anaesthetics must be considered as an early treatment option in ventilated asthmatic patients with bronchial obstruction unresponsive to conventional therapy even though their administration in intensive care units may be difficult.
Highlights
Bronchial asthma with respiratory failure is a challenge for the intensivist as mechanical ventilation is often difficult due to bronchoconstriction and air-trapping
We report a young patient suffering from a severe asthmatic attack that only resolved after therapy with inhalational anaesthesia using sevoflurane
Ventilator settings had to be increased in a stepwise mode to plateau pressures up to 45 cm H2O and positive endexspiratory pressure (PEEP) reduced to 0 cm H2O in the first two hours
Summary
Bronchial asthma with respiratory failure is a challenge for the intensivist as mechanical ventilation is often difficult due to bronchoconstriction and air-trapping. We describe a case of severe asthma with respiratory acidosis in a 10-year-old patient unresponsive to multipharmacologic broncholytic therapy. The initiation of sevoflurane inhalation resolved severe bronchoconstriction and dynamic hyperinflation, leading to complete recovery. Bronchoconstriction and dynamic hyperinflation were severe while multipharmacological broncholytic therapy was unsuccessful. Inhalation with sevoflurane via an anaesthesia machine was the key intervention leading to gradual resolving of severe hypercapnia and respiratory acidosis. To our knowledge this is the first case where hypercapnia and respiratory acidosis were so profound and long lasting yet the patient survived without any damage. Conclusions: Inhalational anaesthetics must be considered as an early treatment option in ventilated asthmatic patients with bronchial obstruction unresponsive to conventional therapy even though their administration in intensive care units may be difficult
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