Chatterjee A, Brott BC, Foley R, Alli O, Sasse M, Ahmed M, Al Solaiman F, Reddy G, Ather S, Leesar MA. Safety of
hydrophilic guidewires used for side-branch protection during stenting and proximal optimization technique in coronary bifurcation lesions.
Cardiovasc Revasc Med 2016;
17:456-462. [PMID:
27210866 DOI:
10.1016/j.carrev.2016.04.006]
[Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 04/07/2016] [Accepted: 04/19/2016] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND PROPOSE
In coronary bifurcation lesions (CBL), hydrophilic guidewires used for side-branch (SB) protection can be withdrawn from underneath the stent easier than other wires. However, the safety of which has not been investigated.
METHODS/MATERIALS
We performed scanning electron microscopic (SEM) examination of hydrophilic wires - the Whisper and Runthrough wires - used for SB protection during stenting and proximal optimization technique (POT) in 30 patients with CBL. The distal 15cm of the wire was examined every 1mm by SEM and 4500 segments were analyzed to investigate for wire fracture, polymer shearing (PS), and its correlations with post-stenting creatine kinase (CK)-MB release.
RESULTS
SEM examination showed no evidence for wire fracture. The total area of PS and the largest defect on the wire were significantly larger with the Whisper wire versus the Runthrough wire (0.15±0.04mm2 vs. 0.026±0.01mm2 and 0.04±0.05mm2 vs. 0.01±0.01mm2; P<0.05, respectively). The total length of PS and the longest defect on the wire were significantly longer with the Whisper wire vs. the Runthrough wire (12.1±14.5mm vs. 2.7±3.0mm and 2.9±4.2mm vs. 1.0±1.2mm; P<0.05, respectively), but there were weak correlations between the extents of PS with CK-MB release.
CONCLUSIONS
Hydrophilic guidewires may be safely used for SB protection during stenting and POT in CBLs. The extent of PS was significantly greater with the Whisper wire than with the Runthrough wire, but its correlation with post-stenting CK-MB release was weak.
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