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Artery Angioplasty (artery + angioplasty)

Distribution by Scientific Domains

Medical Sciences	100%

Selected Abstracts

Critical review of indications for renal artery stenting: Do randomized trials give the answer?,

CATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS, Issue 2 2009
Uwe Schwarzwälder MD
Abstract Significant renal artery stenosis (RAS) is a well accepted cause of deterioration of arterial hypertension and of renal insufficiency. Just recently, more interest has been focused on the impact of RAS on structural heart disease and patient survival. Technical improvements of diagnostic and interventional endovascular tools have lead to a more widespread use of endoluminal renal artery revascularization and extension of the indications for this type of therapy during the past 2 decades. Since the first renal artery angioplasties performed by Felix Mahler and Andreas Grüntzig, numerous single centre studies have reported the beneficial effect of percutaneous transluminal renal angioplasty, and since the early 1990's stenting of renal artery stenosis caused either by atherosclerosis or fibromuscular dysplasia. However, none of the so far published or presented randomized controlled trials (RCT) could prove a beneficial outcome of RAS revascularization compared with medical management. As a result of these negative trials including the recently presented ASTRAL trial, referrals to endovascular renal artery revascularization went down and moreover, reimbursement of these procedures became a matter of debate. This article summarizes the background and the limitations of the so far published and still ongoing controlled trials. Moreover, we discuss why well-designed registries might give important insight on the impact of endovascular revascularization of hemodynamically relevant atherosclerotic RAS. © 2009 Wiley-Liss, Inc. [source]

Validity of self-reported cardiovascular disease events in comparison to medical record adjudication and a statewide hospital morbidity database: the AusDiab study

INTERNAL MEDICINE JOURNAL, Issue 1 2009
E. L. M. Barr
Abstract Epidemiological studies often rely on self-reported cardiovascular disease (CVD) information, but this may be inaccurate. We investigated the accuracy of self-reported CVD (myocardial infarction, stroke, coronary artery bypass surgery and coronary artery angioplasty) during the follow up of the Australian Diabetes, Obesity and Lifestyle (AusDiab) study. Self-reported CVD events, including the date of the event and hospital admission details, were collected with an interviewer-administered questionnaire. Of the 276 self-reported CVD events, 188 (68.1%) were verified by adjudication of medical records. Furthermore, linkage to the statewide Western Australian Hospital Morbidity Database (WAHMD) showed that CVD events were unlikely to be missed, with only 0.2% of those denying any CVD event being recorded as having had an event on the WAHMD. The adjudication of medical records was as accurate as record linkage to the WAHMD for validation of self-reported CVD, but combining the results from both methods of ascertainment improved CVD event identification. [source]

Hand ischemia resulting from a transradial intervention: Successful management with radial artery angioplasty,

CATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS, Issue 3 2010
Diana Rhyne BS
Abstract We describe a case of hand ischemia resulting from transradial catheterization. This was successfully treated with angioplasty of the radial artery occlusion, but stresses the importance of a preprocedure evaluation of the dual blood supply to the hand before transradial access. © 2010 Wiley-Liss, Inc. [source]

Treatment of instent restenosis following stent-supported renal artery angioplasty

CATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS, Issue 3 2007
Thomas Zeller MD
Abstract Objectives: We prospectively studied the long-term outcome of endovascular treatment of instent renal artery stenosis (IRAS). Background: Restenosis is a considerable drawback of stent-supported angioplasty of renal artery stenosis especially in small vessel diameters. The appropriate treatment strategy is not yet defined. Patients and Methods: During a 10-year period 56 consecutive patients (65 lesions) with their first IRAS were included in a prospective follow-up program (mean follow-up 53 ± 25 months, range 6,102). Primary endpoint of the study was the reoccurrence of IRAS (, 70%) after primarily successful treatment of the first IRAS determined by duplex ultrasound. Results: Primary success rate was 100%, no major complication occurred. Nineteen lesions were treated with plain balloon angioplasty (group 1, 30%), 42 lesions with stent-in-stent placement (group 2, 65%) using various bare metal balloon expandable stents, and 4 lesions with drug-eluting stent angioplasty (group 3, 6%). During follow-up, overall 21 lesions (32%) developed reoccurrence of IRAS: n = 7/19 in group 1 (37%), n = 14/42 in group 2 (33%), and n = 0/4 in group 3 (0%; P = 0.573). Reoccurrence of IRAS was more likely to occur in smaller vessel diameters than in larger ones [3,4mm: 4/7 (57%); 5 mm: 11/26 (42%); 6 mm: 5/25 (20%); 7 mm: 1/7 (14%), P = 0.088]. Multivariable analysis found bilateral IRAS and IRAS of both renal arteries of the same side in case of multiple ipsilateral renal arteries as independent predictors for reoccurrence of IRAS. Conclusion: Treatment of IRAS is feasible and safe. The data demonstrate a nonsignificant trend towards lower restenosis with restenting of IRAS versus balloon angioplasty of IRAS. Individual factors influence the likelihood of reoccurrence of IRAS. © 2007 Wiley-Liss, Inc. [source]

Perforation complicating carotid artery stenting: The use of a covered stent

CATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS, Issue 6 2006
Robert S. Dieter MD
Abstract 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. © 2006 Wiley-Liss, Inc. [source]