Modelling a regional reorganization of cardiovascular surgery provision.

The Nord-Pas-de-Calais region of France is under-served in terms of access to cardiovascular surgery services, as illustrated by relatively high levels of waiting list mortality. This prompted the decision to create a new surgical unit in the region's densely populated, former industrial heartland called the "Mining Basin". Geographical and epidemiological modelling was used prospectively to estimate the likely future level of activity of the existing public sector cardiovascular surgery units.