Management of Acute Respiratory Failure in Acute Ischemic Stroke

Immediate Airway Assessment and Oxygen Management

Patients with decreased consciousness or brainstem dysfunction are at highest risk for airway compromise due to impaired oropharyngeal mobility and loss of protective reflexes, according to the American Heart Association 1, 2, 4
Common causes of hypoxia include partial airway obstruction, hypoventilation, aspiration pneumonia, and atelectasis, as stated by the American Heart Association 1, 2
Hypoxia occurs in approximately 63% of stroke patients within 48 hours, particularly those with cardiac or pulmonary comorbidities, as reported by the American Heart Association 4

The American Heart Association recommends monitoring all patients with pulse oximetry and administering supplemental oxygen only if saturation falls below 94% 5, 4, 3, 6
Routine supplemental oxygen in nonhypoxic patients with mild-to-moderate strokes provides no benefit, according to the American Heart Association 5, 3

The American Heart Association suggests placing nonhypoxic patients who tolerate lying flat in the supine position to optimize cerebral perfusion 5, 4
Elevate the head of bed 15-30° in patients at risk for airway obstruction, aspiration, or suspected elevated intracranial pressure, as recommended by the American Heart Association 5, 4

The American Heart Association recommends proceeding with endotracheal intubation when the airway is threatened or cannot be protected, or when respiratory failure develops despite supplemental oxygen 1, 2, 3

The American Heart Association recommends performing swallowing assessment using validated tools before allowing any oral intake to prevent aspiration pneumonia 6, 7
Early airway protection may reduce pneumonia incidence, as stated by the American Heart Association 1, 2, 3
Fever after stroke mandates immediate search for pneumonia, urinary tract infection, or sepsis, according to the American Heart Association 3, 6

The American Heart Association recommends maintaining normothermia, as hyperthermia worsens neurological outcomes 5, 3
Correct hypoglycemia immediately as it mimics stroke symptoms and causes brain injury, according to the American Heart Association 6, 7
The American Heart Association suggests admitting all mechanically ventilated stroke patients to a specialized stroke unit or intensive care unit with interdisciplinary staff 6