A 71-year-old male with a previous coronary artery bypass graft, multiple percutaneous coronary interventions (PCI), and transcatheter aortic valve replacement (TAVR) performed in 2019 with an Evolut R 29 mm (Medtronic, Minneapolis, MN, US) was admitted for refractory angina. Selective coronary cannulation (CC) was impossible due to the metallic valve stent frame while a semi-selective angiography permitted observation of severe stenosis in both mid right coronary (RCA) and ostial circumflex (CFx) arteries (Figure 1A–B).
Then, with a floating AL 1 6 F guide catheter (GC), we performed a flying-wire advancement in the RCA (Supplementary material, Video S1). After anchoring a 2.0/15 mm balloon in the mid RCA, we gently slid a 6 F guide catheter extension (GCE) over this wire into the proximal RCA, which we named distal anchor-GCE sliding technique (Figure 1C, Supplementary material, Supplementary material, Video S2). After this maneuver, two overlapping stents were successfully implanted in the mid RCA (Figure 1D, Supplementary material, Video S3). The same technique, using the same AL 1 6 F GC, was successfully used to stent the left main-proximal CFX (Figure 1E, 1F, Supplementary material, Video S4, and S5).
CC after TAVR represents a main issue and unsuccessful CC was reported in up to 7.7% of patients after TAVR . The initial orientation of some transcatheter heart valves (THV) such as Evolut in some configurations improved the commissural alignment and reduced the risk of coronary artery overlap . Recently, a study reported that patients with misaligned supra-annular THV, low sinus of Valsalva, and higher THV-sinus of Valsalva relation are at the highest risk of impaired CC after TAVR . Although the use of GCE has been recently described after TAVR in a small case series , a lack of standardization in the use of GCE is a common problem for operators. In this case, the combined use of a flying wire advancement and the distal anchor-GCE sliding technique may have had a key role in facilitating both CC and PCI equipment delivery.
Supplementary material is available at https://journals.viamedica.pl/kardiologia_polska.
Conflict of interest: None declared.
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