Why the study?
PCI with previous aorto-ostial stenting can be difficult due to excessive stent protrusion, and existing wiring techniques can be complicated or cause stent deformation and avulsion.
A novel dual-lumen catheter and floating-wire technique provides a stable method to access the central lumen of protruding aorto-ostial stents during PCI, avoiding complications of side-strut intervention.
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May aid bailout in aorto-ostial stent protrusion during PCI; leaves open need for validation in prospective series.
PCI in the setting of previous aorto-ostial stenting can be difficult, especially if there is excessive stent protrusion. Various techniques have been described, including double-wire technique, double-guide snare technique, side-strut sequential ballooning technique, and guide extension facilitated sidestrut stenting. These techniques can sometimes be complicated, and intervention through a side-strut may lead to excessive stent deformation or avulsion of the protruding segment. Our novel technique uses a dual-lumen catheter and floating wire to back the JR4 guide away from the protruding stent while maintaining stability for another guidewire to enter the central lumen.
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Wong et al. (2023) studied this question.
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