Treatment efficacy of intermittent claudication by surgical intervention, supervised physical exercise training compared to no treatment in unselected randomised patients I: One year results of functional and physiological improvements

Objectives: to compare the effect of surgery, exercise and simple observati on on maximum exercise power in claudicants. Design: prospective, randomised study. Methods: a total of 264 unselected claudicants were randomised to supervise d exercise training invasive treatment (open surgical or endovascular proce dures) or observation. One year treatment outcomes were analysed on an inte ntion to-treat basis. Results: invasively treated patients showed a significant improvement in ma ximum walking power, stopping distance, post-ischaemic blood flow and big t oe pressure at one year. Patients randomised to physical exercise training or to the control group did not improve in any outcome measure. Conclusion: invasive treatment increased walking capacity, leg blood pressu re and flow. Supervised physical exercise training offered no therapeutic a dvantage compared to untreated controls.