A strategy for vascular services - testing the 600,000 population model

Background: Vascular services' delivery has been criticised, and re-organis ation based on a 600,000 population model suggested. We assessed the feasib ility of this model in three geographically disparate English regions. Methods: Surgical arterial activity by Trust was analysed using 1994/95 dat a from Hospital Episode Statistics. A postal survey of acute Trusts was use d to assess vascular facilities and personnel. Distances between hospitals and enumeration districts were mapped using a Geographical Information Syst em. Main outcome measures: Number (proportion) of Trusts performing over 100 ar terial procedures a year. Number (proportion) of Trusts with a vascular on- call rota. Proportion of population likely to live more than 40 km away (eq uivalent to 1 h blue-light ambulance travel time) from a vascular unit unde r the proposed model. Results: Twelve of the 32 Trusts (38%) performed over 100 arterial procedur es annually; 23 Trusts completed the survey. Of these, five (22%) had a vas cular on-call rota. Under the 600,000 model, in East Anglia a further 16.5% of the population would live > 40 km from a vascular unit. In Wessex, a fu rther 0.4% of the population would live > 40 km from a vascular unit, Impac t on access in North West Thames was negligible. Conclusions: A 600,000 population model could be feasible in urbanised regi ons, but not in geographically remote ones.