It was reported that the procedure was aborted due to signal noise on the rhythmia mapping system.At the beginning of the procedure, a zurpaz sheath was used to get through the left atrium to the left ventricle.When the physician used a intellanav stablepoint open-irrigated catheter to get retrograde through the aortic arch to left ventricle, he complained about noise on the ablation 1-2.He pulled the catheter back so that he was not in the aortic arch anymore, and the noise disappeared.But when the physician placed the catheter on the aortic arch base directed to the left ventricle and the aortic valve, he saw noise on the catheter tip.The cable and the catheter were exchanged, but the noise persisted when the physician arrived back to that specific place.He decided to stop the procedure, as the source of the tachycardia was not determined due to the noise.When the physician was asked whether he stopped the procedure because of the noise only, or if there were other reasons, the physician answered that the noise had an impact on his decision to stop, but additionally it was a complex patient.He was not sure if he could have completed the procedure with another system and catheter.The signals were reviewed after the procedure and it was unclear whether the noise was caused by the system or catheters or the environment in the lab.No patient complications were reported.
|