Treatment of intracranial atherosclerotic arterial stenoses with a balloon-expandable cobalt chromium stent (Coroflex Blue): procedural safety, efficacy, and midterm patency | springermedizin.de

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01.07.2010 | Interventional Neuroradiology

Treatment of intracranial atherosclerotic arterial stenoses with a balloon-expandable cobalt chromium stent (Coroflex Blue): procedural safety, efficacy, and midterm patency

verfasst von: Zsolt Vajda, Elina Miloslavski, Thomas Güthe, Elisabeth Schmid, Christoph Schul, Guido Albes, Hans Henkes

Erschienen in: Neuroradiology | Ausgabe 7/2010

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Abstract

Introduction

We evaluated the coronary balloon-expandable cobalt chromium stent Coroflex Blue for the treatment of intracranial atherosclerotic arterial stenoses (IAAS).

Methods

Between March 2007 and October 2007, a total of 25 patients (20 male, age median 67 years) with 30 IAAS underwent endovascular treatment using Coroflex Blue stents (B. Braun, Germany). Location and degree of target stenoses before and after treatment and at follow-up and adverse clinical sequelae of treatment were registered. Angiographic follow-up was scheduled for 6, 12, 26, and 52 weeks after the treatment.

Results

The 30 treated lesions were located as follows: nine in intracranial–extradural internal carotid artery (ICA), three in intradural ICA, five in middle cerebral artery, eight in intradural vertebral artery, and five in basilar artery. The technical success rate was 100%. The degree of stenoses prior to and after treatment was 61 ± 2% and 26 ± 3% (mean ± SE), respectively. A residual stenosis of <50% was achieved in 29 (97%) procedures. Treatment was uneventful in 28 out of 30 procedures (93%); one patient suffered a transient and one patient a permanent neurological deficit. Angiographic follow-up was available in all of the patients (100%) after 15.2 months (median) and showed significant (i.e., more than 50%) degree of recurrent stenosis in 11 (37%) of the lesions. Retreatment was performed in 11 (37%) lesions.

Conclusion

The Coroflex Blue stent is easily inserted and safely deployed into intracranial arteries. The incidence of recurrent stenoses remains a concern. Stringent angiographic and clinical follow-up and retreatment are therefore mandatory.

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Titel: Treatment of intracranial atherosclerotic arterial stenoses with a balloon-expandable cobalt chromium stent (Coroflex Blue): procedural safety, efficacy, and midterm patency
verfasst von: Zsolt Vajda
Elina Miloslavski
Thomas Güthe
Elisabeth Schmid
Christoph Schul
Guido Albes
Hans Henkes
Publikationsdatum: 01.07.2010
Verlag: Springer-Verlag
Erschienen in: Neuroradiology / Ausgabe 7/2010
Print ISSN: 0028-3940
Elektronische ISSN: 1432-1920
DOI: https://doi.org/10.1007/s00234-009-0615-7

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