Hypoxemia is common in acute ischemic stroke and associated with neurological deterioration and mortality. However, the benefit of oxygen therapy is controversial. Severity of stroke may affect the benefit of oxygen supplementation. Abnormal breathing patterns are commonly found among stroke patients and may increase the risk of hypoxemia. High flow nasal cannula (HFNC) has several advantages from controllable fraction of inspired oxygen (FiO2), reduction of nasopharyngeal resistance and positive end expiratory pressure effect. In this study, we aimed to assess the therapeutic effect of HFNC on oxygen desaturation index (ODI) and neurological outcomes in stroke patients with moderate and severe severities, compared with no and low flow oxygen supplementation.
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Oxygen desaturation index
Timeframe: In the first 24 hours of study period