Percutaneous Coronary Intervention (PCI) has a considerable evidence base and it is firmly established as the most common procedure used in the invasive treatment of patients with CHD in the UK. The evidence base relating to PCI has been reviewed and this has been published in Heart. The guidelines focus on issues pertinent to practice within the UK and set out a recommended template to ensure optimal delivery of patient care. Dr Alistair Lindsay speaks to Professor Adrian Banning from the John Radcliffe Hospital at the University of Oxford who was co-author on the guidelines.