A comparison of outcomes between bovine pericardial and porcine valves in 38 040 patients in England and Wales over 10 years

This study utilised data form the UK National Adult Cardiac Surgery Audit to compare re-intervention free survival between porcine and bovine pericardial aortic valves. All elective or urgent aortic valve replacements with or without coronary artery surgery between 2003 and 2013 were included with a median follow-up time of 3.6 years. There was no difference in in-hospital mortality, survival (10-year survival of 49.0% and 50.3% in the bovine pericardial and porcine groups respectively) or re-intervention free survival between the groups. After adjustment there was a trend towards improved re-intervention free survival in younger patients (