| Guidewire bias in rotational atherectomy in the angled lesion: evaluation based on the thickness of the ablated intima and media. | |
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MedLine Citation:
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PMID: 12135134 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The effect of guidewire bias on angled-lesion ablation by rotational atherectomy (RA) was assessed by measuring the changes in vertical lumen diameter, horizontal lumen diameter and the intima-media thickness of the coronary artery, using intravascular ultrasound in 10 lesions with an angle greater than 10 degrees. The vertical and horizontal diameters significantly increased after RA. The intima-media thickness at the 4 orthogonal sites significantly decreased. There was a significant positive correlation between vertical diameter change and angle (r=0.642, p=0.045), but none between horizontal diameter change and angle. There was no correlation between intima-media thickness change at 0 degrees and angle; however, at 180 degrees there was a tendency to correlation with angle (r=0.602, p=0.066). These data suggest that in cases of angled lesions, the increase in vertical lumen diameter is caused more by ablation of the 180 degrees wall than by that of the 0 degrees wall, which is brought about by guidewire bias toward the vascular wall at 180 degrees. |
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Authors:
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Yoshihiko Oishi; Mitsunori Okamoto; Takashi Sueda; Masaki Hashimoto; Shinji Karakawa; Masayuki Kambe |
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Publication Detail:
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Type: Evaluation Studies; Journal Article |
Journal Detail:
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Title: Circulation journal : official journal of the Japanese Circulation Society Volume: 66 ISSN: 1346-9843 ISO Abbreviation: Circ. J. Publication Date: 2002 Jul |
Date Detail:
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Created Date: 2002-07-23 Completed Date: 2003-06-03 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 101137683 Medline TA: Circ J Country: Japan |
Other Details:
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Languages: eng Pagination: 659-64 Citation Subset: IM |
Affiliation:
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Department of Cardiology, Hiroshima Prefectural Hiroshima Hospital, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Angina Pectoris
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therapy Atherectomy, Coronary / adverse effects, instrumentation*, standards* Bias (Epidemiology) Catheter Ablation / adverse effects Coronary Vessels / pathology, ultrasonography Humans Tunica Intima / pathology, ultrasonography Tunica Media / pathology, ultrasonography Ultrasonography, Interventional |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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