The DETO2X-AMI study questioned the current practice of routine oxygen therapy for all patients with suspected myocardial infarction (MI), said Dr Robin Hofmann (Karolinska Institutet at Södersjukhuset, Stockholm, Sweden) who presented the study at the meeting. This prospective, randomised, open label trial enrolled 6,229 patients with suspected heart attack from 35 hospitals across Sweden. Half of the patients were assigned to oxygen given through an open face mask and the other half to room air without a mask.
The study – using a registry-based randomised clinical trial protocol – was representative of real world practice and used nati