To the editor: The article by Einstein recently published in Heart highlighted the importance of reducing radiation risk in contemporary cardiac practice.1 The editorial by Hamon and Nolan deals with another important technical problem, access site selection, and recommends the use of transradial access to minimise bleeding risk,2 emphasising the relationship between major adverse cardiovascular event rates after percutaneous coronary intervention (PCI) and access site bleeding. Both Einstein’s article,1 and the subsequent related correspondence from Partridge,3 state that transradial access is associated with increased radiation exposure. If this is true, it could potentially offset some of the proven benefits that the radial access site has in preventing bleeding, improving patient quality of life and reducing costs.4 The available publications relating to radiation exposure and access site selection on which Partridge and Einstein base their statements have …