June 2008

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Volume 20 Issue 6
The exact incidence of chronic total occlusions (CTOs) during routine coronary angiography is not well defined. It has been reported in the literature that CTOs are encountered in approximately one-third of diagnostic cardiac catheterizations.1 Anoth…
Successful recanalization and percutaneous revascularization of coronary arteries with chronic total occlusions (CTO) is one of the last frontiers in percutaneous coronary interventions (PCI). Successful CTO treatment is associated with reduced angin…
Percutaneous coronary intervention (PCI) offers an alternative form of therapy for patients considered to be at high risk for coronary artery bypass graft surgery (CABG). PCI is associated with substantial morbidity and mortality in the presence of s…
Coronary artery perforation (CAP) is an uncommon, yet potentially devastating, complication of percutaneous coronary interventions (PCI).1 Early reports of this catastrophic complication date back to the early 1980s.2 In a recent review of 6,245 pati…
Case Report. A 66-year-old female was admitted in March 2005 with non-ST-segment elevation myocardial infarction (NSTEMI). She had a prior history of hypertension, dyslipidemia and paroxysmal supraventricular tachycardia (SVT). Her coronary angiogram…
Transcatheter closure of ventricular septal defects has emerged as an attractive therapeutic modality, with excellent procedural and intermediate hemodynamic outcomes. While experience with this technique is relatively limited, longerterm follow up i…
Thrombus is highly prevalent in patients with peripheral arterial disease, particularly those with recent symptoms and occluded or subtotally occluded vessels. In a prospective registry of 17 consecutive patients with recent (< 6 months) symptoms…
Percutaneous renal artery stenting is a well-established revascularization modality for the treatment of significant renal artery stenosis (RAS) in selected patients with uncontrolled hypertension, renal insufficiency or heart failure symptoms.1–3 De…
Renal artery stenosis is mainly a disease of progressive atherosclerosis involving the ostium and proximal third of the main renal artery and the peri-renal aorta. Atherosclerosis accounts for 90% of cases of renal artery stenosis (RAS).1 The prevale…
Nitinol, an alloy composed of 55% nickel and 45% titanium, has been widely used in medical products. With its superelastic and shape-memory properties, nitinol has generated new models of occlusion devices for transcatheter closure of atrial septal d…