Aims: Catheter-tissue contact is critical for effective lesion creation. The objective of this study was to determine in an experimental swine model the pathological effects of cavo-tricuspid isthmus ablation using two systems that provide reliable measures of the pressure at the catheter tip during radiofrequency ablation procedures.
Methods And Results: We performed the procedure in eight pigs in our experimental electrophysiology laboratory after right femoral vein dissection and insertion of a 12 Fr.
A patient with postinfarction angina was referred for coronary angiography. In addition to severe atherosclerotic coronary disease, which was responsible for clinical presentation, a single coronary artery arising from the left sinus of Valsalva was found. The authors report the use of direct coronary stent deployment without predilation to treat disease in this rare anomaly.
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