Guidewire and microcatheter utilization patterns during antegrade wire escalation in chronic total occlusion percutaneous coronary intervention: Insights from a contemporary multicenter registry

Abstract

Our contemporary, multicenter CTO PCI registry demonstrates that the most commonly used wires for AWE are polymer-jacketed guidewires. "Stiff" and polymer-jacketed guidewires appear to provide high crossing rates without an increase in MACE or perforation, and may thus be considered for upfront use. © 2016 Wiley Periodicals, Inc.

Perforation of the atretic pulmonary valve using chronic total occlusion (CTO) wire and coronary microcatheter

“…Coronary microcatheters have been recently developed to treat coronary chronic total occlusion . Since microcatheters have been reported to increase the stability of the guide wire, to enhance the penetrating power, and to allow guide exchange, microcatheters have seemed useful for the atretic pulmonary valve perforation.…”

A Prospective Comparison of the Drilled Balloon and Over the Wire Balloon Using to Visualizing the Distal Lumen of Total Occlusion

“…This requirement is from the nature of the OTW balloon. 13,14 Opaque injection is not possible without not extracting the guidewire from the OTW balloon, because the guidewire occludes the channel of balloon that necessary for opaque injecting. For this purpose, "y connector" was tried, but the opaque could not be injected because the wire occluded the channel completely.…”

“…For this reason, the cost of the procedure in the OTW balloon group is higher than that of DB group ($702±202 vs $479±162, p<0.001), Table 2. 13,14 The undesired blood flow is minimal or even absent from the proximal side of the total lesion to distal site because the drilled balloon is thin, and no balloon was inflated in this total lesion. The 1.25 balloon is an average of 2.4 F diameter and is maintained, even if it is drilled, if it is received in the negative press.…”

Buddy microcatheter technique: Could it be the solution for complex coronary lesions?

“…The one or more buddy wire technique often uses as a track and helps advance of the balloon or the stent towards the target lesion [5,6]. Likewise, the use of microcatheter may significantly facilitate the success and efficiency of chronic total occlusion PCI and intracranial endovascular stroke and aneurysms treatment [7][8][9]. In our report, firstly the buddy wire technique was planned.…”