Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions
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Catheter Cardiovasc Interv · Nov 2012
Comparative StudyIntracoronary ECG ST-segment recovery during primary percutaneous intervention for ST-segment myocardial infarction: insights from a cardiac MRI study.
ST-segment-resolution (STR) on surface electrocardiogram (ECG) is a good surrogate for myocardial reperfusion in patients with acute ST-segment-elevation-myocardial-infarction (STEMI). We sort to determine the optimal criteria of measuring STR on intracoronary-ECG (IC-ECG) for prediction of myocardial injury evaluated by cardiac MRI (CMR). ⋯ The degree of early IC-STR (defined by IC-STR > 1 mm or <30%) successfully predicts myocardial damage following primary-PCI for an acute STEMI. Further studies are required to investigate its potential utility.
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Catheter Cardiovasc Interv · Nov 2012
Multicenter StudyExcimer laser with adjunctive balloon angioplasty and heparin-coated self-expanding stent grafts for the treatment of femoropopliteal artery in-stent restenosis: twelve-month results from the SALVAGE study.
The aim of the study is to evaluate the safety and effectiveness of treating femoropopliteal in-stent restenosis (ISR) with debulking with excimer laser followed by implantation of a VIABAHN endoprosthesis. ⋯ The strategy of excimer laser atherectomy and PTA followed by implantation of a self-expanding stent graft for the treatment of femoropopliteal ISR is safe and associated with high procedural success. Primary patency rate at 12-months was suboptimal; however, the TLR rate was low.
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Catheter Cardiovasc Interv · Oct 2012
Case ReportsAntegrade percutaneous valve implantation for mitral ring dysfunction, a challenging case.
The operative risk for reoperation of degenerated bioprosthetic valves or failing mitral-valve annuloplasty is higher compared with the risks for first isolated native valve repair or replacement (Astor et al., Eur Heart J 2008;29:2382-2387). In the presence of comorbidities, these risks increase exponentially. The recent introduction of transcatheter valve implantation opened new perspectives for the treatment of patients at very high surgical risk. We report a percutaneous mitral valve (MV) implantation using a transatrial approach within a MV ring using the Edwars Sapien XT valve.
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Catheter Cardiovasc Interv · Oct 2012
The pulmonary artery pulsatility index identifies severe right ventricular dysfunction in acute inferior myocardial infarction.
Right ventricular dysfunction (RVD) is a major cause of morbidity and mortality in the setting of acute inferior wall myocardial infarction (IWMI), and early detection may improve clinical outcomes. We defined a novel hemodynamic index, the pulmonary artery pulsatility index (PAPi), and explored whether the PAPi correlates with severe RVD in acute IWMI. ⋯ The PAPi is a simple, invasive hemodynamic measure that may help identify high-risk patients with acute IWMI with severe RVD. Earlier identification of this high-risk population may improve clinical outcomes.