Comparison between catheter-based delivery of paclitaxel after bare-metal stenting and drug-eluting stents in coronary artery disease patients at high risk for in-stent restenosis.

Background: Drug eluting stents reduce the risk of in-stent restenosis but delay healing of the vascular wall. Recent data on late and very late stent thrombosis after drug-eluting stent (DES) implantation have raised concerns about the long-term safety. High lipophilicity of paclitaxel promotes rapid cellular uptake and prolongs its action.

Anteroseptal basal right ventricular entrainment is simple and superior to apical entrainment in identifying mechanism of supraventricular tachycardia.

Background: Differentiation between atrioventricular nodal reentry tachycardia (AVNRT) and atrioventricular reentrant tachycardia (AVRT) can be sometimes challenging. Apical right ventricular (RV) entrainment can help in differentiation; however, it has some fallacies. We thought to compare the accuracy of anteroseptal basal RV entrainment to RV apical entrainment in identifying the mechanism of supraventricular tachycardia (SVT).