Reduction in spasm with a long hydrophylic transradial sheath

Abstract

Radial artery protection using the long hydrophilic-coated sheath was efficient in the prevention of radial spasm for transradial approach. © 2010 Wiley-Liss, Inc.

Incidence and Predictors of Radial Artery Spasm at the Beginning of a Transradial Coronary Procedure

“…With this evidence, RAS proved to be an important reason for the hindrance of procedural success at the very beginning of the procedure in our study (P < 0.001). The incidence of RAS in this study was 10.3%, which was not comparable to other spasm studies . There are several reasons for this discrepancy: First, spasm was defined through a quantitative measurement which is more objective compared to studies in which spasm was defined unclearly as extreme pain .…”

A predictive score of radial artery spasm in patients undergoing transradial percutaneous coronary intervention

“…The reported frequency of spasm in transradial procedures shows considerable variation in published studies, ranging from 4% to higher than 20% [11][12][13][14][15][16]. Several spasm-preventive measures have been tried in clinical practice, most commonly including administration of a "vasodilator cocktail" after insertion of the radial artery sheath.…”

Friction behaviour of hydrophilic lubricious coatings for medical device applications

“…However, while these coatings have proven effective at reducing the incidence of spasm and improving patient comfort, the use of hydrophilic sheaths does not appear to prevent the reduction in flow mediated dilation, an index of endothelial dysfunction [9], and did not markedly influence the incidence of radial occlusion [10,11]. Further, the use of certain hydrophilic coatings (for example, those manufactured by Cook [12,13]) has been associated with the formation of sterile granulomas and abscesses [14][15][16][17][18].…”