Glycemic control and adverse events in patients undergoing coronary angiography and PCI
Early guidelines recommendations on the discontinuation of metformin before coronary angiography were based on expert opinion, due to the paucity of evidence in this setting. A common recommendation was to hold metformin on the day of contrast media administration and for the following 48 h, irrespective of the risk of CA-AKI and metformin accumulation [