We compared the traditional responder classification (defined as systolic 24-hour blood pressure reduction of − 5 mm Hg six months after renal denervation) with a novel definition of an ideal respondership (based on a 24 h blood pressure reduction at no point in time, one, or all follow-up timepoints).
We were able to re-classify almost a quarter of patients. Blood pressure variability was substantial in patients traditionally defined as responders. On the other hand, our novel classification of an ideal respondership seems to be clinically superior in discriminating sustained from pseudo-response to renal denervation.
Based on our observations, we recommend that the traditional response classification should be reconsidered and possibly strengthened by using a composite endpoint of 24 h-BP reductions at different follow-up-visits.