Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions
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Catheter Cardiovasc Interv · Jul 2006
Comparative StudyExperimental efficacy of an everolimus eluting cobalt chromium stent.
Rapamycin and its analogs are now being coated on different stent platforms, using different polymer matrices to prevent restenosis by impairing vascular smooth muscle cell proliferation and neointimal formation. ⋯ Stent-based delivery of sirolimus and everolimus delivered via durable polymeric matrices are equally effective in the suppression of neointimal formation at day 28 in the porcine coronary model. Further study is necessary to document dose response and long-term comparative effects of these drug-eluting stents.
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Catheter Cardiovasc Interv · Jul 2006
Case ReportsResuscitation and recovery from acute right ventricular failure using a percutaneous right ventricular assist device.
A number of techniques have been proposed for circulatory support in patients with severe right heart failure. We report on a patient with right ventricular (RV) infarction complicated by cardiogenic shock, who was resuscitated by the novel use of a percutaneous right ventricular assist device. ⋯ RV decompression for 3 days was accompanied by recovery of contractile function, and the patient was successfully weaned from the device. Future trials are needed to assess the effectiveness of the percutaneous ventricular assist device in patients with RV failure.
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Catheter Cardiovasc Interv · Jun 2006
Case ReportsLate complete atriovenous block after percutaneous closure of a perimembranous ventricular septal defect.
Percutaneous closure of a perimembranous ventricular septal defect (VSD) is an alternative to surgical closure. Complications include arrhythmias and in particular early postoperative complete atrioventricular (AV) block. ⋯ The first patient experienced syncope, while the second one was completely asymptomatic. Both subjects underwent endocardial ventricular pacemaker implantation.
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Catheter Cardiovasc Interv · Jun 2006
Feasibility and safety of transbrachial approach for patients with severe carotid artery stenosis undergoing stenting.
Although sporadic successful cases using the transradial approach (TRA) for carotid stenting have been reported, the safety and feasibility of carotid stenting using either TRA or a transbrachial approach (TBA) have not been fully investigated. Recently, we have developed a safe and feasible method of TRA for cerebrovascular angiographic studies. This study investigated whether a TBA approach using a 7-French (F) Kimny guiding catheter for carotid stenting is safe and feasible for patients with severe carotid stenosis. ⋯ The procedure was successful in all patients. No neurological or vascular bleeding complications were observed and all patients were discharged uneventfully. The TBA for carotid stenting was safe and effective, providing a last resort for patients unsuited to femoral arterial access and surgical intervention.
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Catheter Cardiovasc Interv · Jun 2006
Case ReportsPerforation complicating carotid artery stenting: the use of a covered stent.
Carotid artery angioplasty and stenting has emerged as an effective strategy for the treatment of significant carotid artery stenosis. Perforation during carotid artery stenting is a very rare potential complication of the procedure. We describe a case of carotid artery perforation that occurred during postdilation of the carotid artery stent. In our case this potentially serious complication was successfully treated with a covered stent-graft.