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Aortic valve replacement in patients with a small aortic annulus may result in patient-prosthesis mismatch (PPM). Aortic root enlargement (ARE) can reduce PPM, but leads to extended cardiac ischaemia times. Sutureless valves have the potential to prevent PPM while reducing cardiac ischaemia times.

Aortic valve replacement with sutureless prosthesis: better than root enlargement to avoid patient–prosthesis mismatch?