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Background Complex and high-risk coronary intervention (CHIP-PCI) and PCI in cardiogenic shock complicating acute coronary syndrome (ACS) are increasingly performed under mechanical circulatory support—so-called protected PCI. Among the available options, Impella Cardiac Power (CP) heart pump (Abiomed) is percutaneously inserted over the femoral artery and typically requires a second arterial access to perform PCI, which further enhances the risk of vascular and bleeding complications. The single-access technique allows Impella CP placement and PCI performance through the same vascular access. When a 7 Fr system is desirable, only a long and entirely hydrophilic coated sheath has been previously used, which is not available in Europe. Case summary A 85-year-old patient admitted with non ST-elevation - acute coronary syndrome (NSTE-ACS), severely reduced left ventricular function and three-vessel coronary artery disease underwent single-access CHIP-PCI under Impella CP support. After a failed attempt to insert a standard 7 Fr long femoral sheath alongside the Impella catheter, we successfully introduced a 7.5 Fr sheathless guiding catheter and delivered the planned percutaneous treatment with the benefits conferred by a 7 Fr—rather than 6—lumen catheter, without the need for an additional arterial access. Discussion This is, to the best of our knowledge, the first case of CHIP-PCI performed under Impella support utilizing the single-access technique with a 7.5 Fr sheathless guiding catheter. Beyond advantages of the single-access technique in sparing time and avoiding vascular complications associated with gaining a second arterial access, the lower outer diameter of the sheathless catheter compared with standard 7 Fr sheaths may allow improved limb perfusion and lower chance of interference with the Impella CP catheter.

A new iteration for the single-access large-bore technique during Impella supported complex and high-risk coronary intervention: a case report