This study will be a single blind prospective randomised control trial in patients undergoing
ablation for the treatment of typical atrial flutter, with the aim of investigating the
benefit of a new impedance-based computer software application which measures tissue contact
between the ablation catheter and the inside of the heart.
The investigators hope to demonstrate that the use of this tissue contact information reduces
ablation time, Xray time, and procedure time required to complete the procedure successfully.
Study participants will be randomly assigned to undergo their procedure with or without this
contact data displayed for the doctor performing the ablation to see. The acute procedural
endpoint of ablation is successful conduction block across the cavotricuspid isthmus of the
right atrium. If the outcome of this study is positive, it will have a significant beneficial
impact on this procedure, reducing procedure length, patient discomfort, and potentially
reducing risk for the patient, recurrent arrythmia symptoms, and the need for repeat
procedures later on.