Volume 22 - Issue 5 - May, 2010
Analysis of Peripheral Arterial Bends that Interfere with Coronary Catheterization
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ABSTRACT: Objectives. The aim of this study was to analyze the characteristics of peripheral arterial bends that interfere with coronary catheterization. Background. Complex aortic and peripheral arterial bends are important factors in unsuccessful coronary catheterization. Methods. We classified peripheral arterial bends based on the difficulty of coronary catheterization: no bend, type A: easy; type B1: difficult but possible; type B2: difficult but possible with assistance of a device such as a long sheath; type C: impossible. We analyzed 1,626 consecutive cardiac c
Dual Guide Catheter Technique for Treating Native Coronary Artery Lesions (Full Title Below)
- Wed, 5/12/10 - 12:59pm
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Dual Guide Catheter Technique for Treating Native Coronary Artery Lesions Through Tortuous Internal Mammary Grafts: Separating Equipment Delivery from Target Lesion Visualization
ABSTRACT:Attempts to wire and stent a native coronary artery lesion through a tortuous internal mammary graft can result in graft occlusion, ischemia, and inability to visualize the distal lesion. We report three cases in which treatment of such lesions was successfully completed using two guiding catheters, one of which was used for lesion visualization and one for equipment delivery.
J INVASI
Transradial Approach to Subclavian Artery Stenting
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ABSTRACT: Background. Subclavian artery angioplasty has been traditionally performed via the transfemoral approach. Transradial access is becoming increasingly used for coronary as well as for certain peripheral vascular beds. We describe our experience with transradial access for subclavian artery stenting. Methods. We performed a retrospective review of subclavian artery interventions from 2007 to 2009 at our institution. Demographics, clinical data, lesion and procedural characteristics were collected. Safety and efficacy endpoints were recorded, and follow-up was performed at
Percutaneous Closure of Ruptured Sinus of Valsalva Aneurysm and Atrial Septal Defect
- Wed, 5/12/10 - 1:43pm
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ABSTRACT: Ruptured sinus of Valsalva aneurysm (SOVA) is a rare albeit well-described entity and coexisting defects like ventricular septal defect, aortic regurgitation and, infrequently, atrial septal defect (ASD) have been reported. Until recently, open surgical closure with cardiopulmonary bypass was the mainstay of treatment. However, transcatheter closure of isolated ruptured SOVA defects has been encouraging. We report percutaneous closure of ruptured noncoronary SOVA to the right atrium and a coexisting secundum ASD with deficient aortic margin. Our experience suggests that succes
Will the Transradial Approach Become the Preferred Approach in Subclavian Artery Stenting?
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Subclavian artery stenting is well established in the therapy of subclavian artery stenosis resulting in “subclavian steal,” arm claudication, myocardial ischemia in patients with prior or intended coronary artery bypass utilizing the internal mammary artery, and in patients with leg ischemia who have undergone axillofemoral bypass. 1–9 The single-center experience published in the current issue of the Journal by Yu and colleagues10 describes their experience utilizing the transradial approach in the treatment of symptomatic subclavian artery lesions.
The transradial approa
Consequences of Underexpansion of a Percutaneous Aortic Valve Bioprosthesis
- Wed, 5/12/10 - 2:19pm
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ABSTRACT: Transcatheter aortic valve implantation has been shown to be an effective and reproducible therapy for severe aortic valve stenosis. Device performance and short-term outcomes of well-deployed prostheses have been extensively investigated and discussed; however, these endpoints have not yet been reported in cases characterized by suboptimal expansion. We describe a case of CoreValve self-expanding prosthesis underexpansion, reporting data on prosthesis performance and short-term clinical outcome.
J INVASIVE CARDIOL 2010;22:E86–E89
Key words: aortic stenosis, transcath
Progression of Coronary Artery Atherosclerosis After Acute Myocardial Infarction: An Angiographic Study
- Wed, 5/5/10 - 1:33pm
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ABSTRACT: Aims. Today’s knowledge concerning the progression of coronary artery disease (CAD) is mainly derived from randomised clinical studies performed in patients with stable CAD. Data on atherosclerosis progression (AP) after myocardial infarction are limited. The aim of this study was to assess the AP in such a population of patients. Methods and Results. A total of 186 patients were analyzed. After exclusion of patients not suitable for quantitative coronary angiography analysis, the final group was comprised of 154 patients. AP was recognized in 93 (60.4%) patients. A
Entrapment of a Drug-Eluting Stent in Left Anterior Descending Artery and Left Main Artery (Full Title Below)
- Thu, 5/13/10 - 10:20am
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Entrapment of a Drug-Eluting Stent in Left Anterior Descending Artery and Left Main Artery Leading to a Life-Threatening Complication
ABSTRACT:Sudden stent loss after stent entrapment in a tight coronary lesion is an unexpected and devastating complication. Proper and timely steps without pressing the panic button are necessary. We describe a case of entrapment of a sirolimus-eluting stent into the left coronary artery system. Although the entrapped drug-eluting stent was successfully removed using a snare device, excessive guide manipulation under this life-threatening cond
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