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preoperative evaluation guidelines 2021

The ACC/AHA guidelines recommend preoperative ECGs in patients with at least one clinical risk factor undergoing vascular surgical procedures, The electrocardiogram (ECG) is a firmly established element of the preoperative cardiological assessment. Official guidelines on clinical practice1 take it foracteristics and summarize the current guide- lines and recommendations on obtaining a preoperative 12-lead ECG in patients under- going noncardiac surgery.