Document Detail

Backup force of guiding catheters for the right coronary artery in transfemoral and transradial interventions.
MedLine Citation:
PMID:  19901410     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: We sought to clarify the mechanisms of backup force for right coronary artery intervention. BACKGROUND: Backup force of a guiding catheter is important for successful percutaneous coronary intervention (PCI); however, little attention has been given to its mechanism. METHODS AND RESULTS: Backup force of guiding catheters was measured in an arterial tree model. Judkins R, Amplatz L and Ikari R had greater backup force in the transfemoral intervention (TFI) than the transradial intervention (TRI). The primary attachment site of the catheter was the aortic arch in TFI, but it was the brachiocephalic artery in right TRI. This may be a major reason for the different backup force because generation of backup force is governed by the mechanics of the catheter at the attachment site. The Amplatz L and Ikari R had stronger backup force than the Judkins R both in TFI and in TRI because a slight backward motion of the catheter due to device advancement changed the primary attachment site to the reverse side of the aorta or sinus of Valsalva. The primary attachment site of the Ikari L at the power position was the reverse side of the aorta both in TFI and TRI, which was different from other catheters. CONCLUSIONS: The primary attachment site of the catheter had great impact on the backup force in right coronary interventions. An understanding of the mechanism by which the guiding catheter works in TRI and TFI may help in choosing an appropriate approach site.
Yuji Ikari; Naoki Masuda; Takashi Matsukage; Nobuhiko Ogata; Gaku Nakazawa; Teruhisa Tanabe; Yoshihiro Morino
Publication Detail:
Type:  Comparative Study; In Vitro; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of invasive cardiology     Volume:  21     ISSN:  1557-2501     ISO Abbreviation:  J Invasive Cardiol     Publication Date:  2009 Nov 
Date Detail:
Created Date:  2009-11-10     Completed Date:  2010-02-05     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8917477     Medline TA:  J Invasive Cardiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  570-4     Citation Subset:  IM    
Department of Cardiology, Tokai University of Medicine, Isehara, Japan.
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MeSH Terms
Angioplasty, Transluminal, Percutaneous Coronary / instrumentation*,  methods*
Brachiocephalic Trunk
Coronary Vessels*
Femoral Artery
Models, Anatomic*
Polyvinyl Chloride
Radial Artery
Stress, Mechanical
Reg. No./Substance:
9002-86-2/Polyvinyl Chloride

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