June 2008

|
Volume 20 Issue 6
RAO caudal projection showing a total LAD occlusion after giving off a large diagonal branch.
Novel Use of Twin-Pass Catheter in Successful Recanalization of
a Chronic Coronary Total Occlusion
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…
Diagnostic angiogram of the left coronary artery in the right anterior oblique cranial view showed a long chronic total occlusion of the mid-left anterior descending artery with the ipsilateral intraseptal collateral vessel.
Retrograde Recanalization of a Left Anterior Descending
Chronic Total Occlusion via an Ipsilateral Intraseptal Collateral
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…
The TandemHeart pump acts with the THTC-EF cannula to unload the left side of the heart. (Image provided courtesy of CardiacAssist Inc.)
Single-Center Experience with the TandemHeart Percutaneous
Ventricular Assist Device to Support Patients undergoing
High-Risk
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…
Flow-limiting in-stent restenosis of the distal LAD (28º cranial, 22º RAO view).
Management of Distal Coronary Perforations
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…
Severe disease in the mid-left anterior descending artery and obtuse marginal branch.
Very Late Sirolimus-Eluting Stent Displaced Fracture in the
Mid-Left Anterior Descending Artery
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…
Figure 1. (A) Left ventriculography in a LAO cranial projection demonstrating fenestrated perimembranous ventricular septal defect (Arrow).
Late Complete Heart Block in an Adult Patient undergoing
Percutaneous Ventricular Septal Defect Closure
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…
Demographics and clinical characteristics.
Utilization of GP IIb/IIIa Inhibitors in Peripheral Percutaneous
Interventions: Current Applications and In-Hospital Outcomes
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…
Results as % of reference vessel and nominal stent dimensions.
Three-Dimensional Balloon Catheter Sizing Identifies Significant
Underdeployed Stents Using Conventional Methods in Renal
Arte
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…
Optimal Renal Artery Stenting: Does Size Matter?
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…
The atrial septal defect closure device. (A) Frontal view of the right atrial disc; (B) frontal view of the left atrial disc; (C) side view with the left atrial disc on the right and the right atrial disc on the left (the right atrial disc is connected to
Self-Expanding Platinum-Coated Nitinol Devices for
Transcatheter Closure of Atrial Septal Defect: Prevention
of Nickel Release
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…