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Randomized Controlled Trial
. 2024 Jul 15;20(14):e876-e886.
doi: 10.4244/EIJ-D-24-00089.

Ultrasound-guided versus fluoroscopy-guided large-bore femoral access in PCI of complex coronary lesions: the international, multicentre, randomised ULTRACOLOR Trial

Affiliations
Randomized Controlled Trial

Ultrasound-guided versus fluoroscopy-guided large-bore femoral access in PCI of complex coronary lesions: the international, multicentre, randomised ULTRACOLOR Trial

Tom A Meijers et al. EuroIntervention. .

Abstract

Background: Transfemoral access is often used when large-bore guide catheters are required for percutaneous coronary intervention (PCI) of complex coronary lesions, especially when large-bore transradial access is contraindicated. Whether the risk of access site complications for these procedures may be reduced by ultrasound-guided puncture is unclear.

Aims: We aimed to show the superiority of ultrasound-guided femoral puncture compared to fluoroscopy-guided access in large-bore complex PCI with regard to access site-related Bleeding Academic Research Consortium 2, 3 or 5 bleeding and/or vascular complications requiring intervention during hospitalisation.

Methods: The ULTRACOLOR Trial is an international, multicentre, randomised controlled trial investigating whether ultrasound-guided large-bore femoral access reduces clinically relevant access site complications compared to fluoroscopy-guided large-bore femoral access in PCI of complex coronary lesions.

Results: A total of 544 patients undergoing complex PCI mandating large-bore (≥7 Fr) transfemoral access were randomised at 10 European centres (median age 71; 76% male). Of these patients, 68% required PCI of a chronic total occlusion. The primary endpoint was met in 18.9% of PCI with fluoroscopy-guided access and 15.7% of PCI with ultrasound-guided access (p=0.32). First-pass puncture success was 92% for ultrasound-guided access versus 85% for fluoroscopy-guided access (p=0.02). The median time in the catheterisation laboratory was 102 minutes versus 105 minutes (p=0.43), and the major adverse cardiovascular event rate at 1 month was 4.1% for fluoroscopy-guided access and 2.6% for ultrasound-guided access (p=0.32).

Conclusions: As compared to fluoroscopy-guided access, the routine use of ultrasound-guided access for large-bore transfemoral complex PCI did not significantly reduce clinically relevant bleeding or vascular access site complications. A significantly higher first-pass puncture success rate was demonstrated for ultrasound-guided access.

Clinicaltrials: gov identifier: NCT04837404.

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Conflict of interest statement

A. Aminian: consulting services for Terumo. A.O. Kraaijeveld: research grants from Xenios AG; lecture fees from Abiomed, Novartis, and Inari; and consultancy fees from Dekra and Boston Scientific. M.A.H. van Leeuwen: speaker/consulting services honoraria from Terumo, Daiichi Sankyo, and Abbott; and research grants from AstraZeneca, Top Sector Life Sciences & Health, Terumo, Top Medical B.V., and Abbott. The other authors have no conflicts of interest to declare.

Figures

Figure 1
Figure 1. Enrolment flow diagram for the ULTRACOLOR Trial.
PCI: percutaneous coronary intervention; STEMI: ST-segment elevation myocardial infarction; TFA: transfemoral access
Figure 2
Figure 2. Subgroup analyses at discharge.
ACT: activated clotting time; BMI: body mass index; CI: confidence interval, CTO: chronic total occlusion; MDRD: Modification of Diet in Renal Disease; NSTE-ACS: non-ST-segment elevation acute coronary syndrome; OR: odds ratio
Central illustration
Central illustration. Outcomes of patients undergoing fluoroscopy-guided or ultrasound-guided large-bore femoral access in complex PCI − the ULTRACOLOR Trial.
A) Patient characteristics after randomisation. B) Main outcomes. BARC: Bleeding Academic Research Consortium; cath lab: catheterisation laboratory; CTO: chronic total occlusion; mins: minutes; PCI: percutaneous coronary intervention

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