Optimum waiting time after CTI ablation
It is conventional to use a waiting time of at least 20 minutes after CTI ablation, but there is variation between centres in the exact interval chosen, with many centres choosing 30 minutes and some as long as 60 minutes. All studies on the time-course of conduction recurrence show an exponential decline in the probability of recurrence as time elapses from the last RF delivery.2,10 Our choice of a 20-minute interval was based on pre-existing routines in our centres, which are in turn based on a pragmatic trade-off between the pressures of a busy and poorly funded system and the desire to keep our rate of permanent clinical cure close to 100%.