Does OCT Optimise Results of Stenting on the Left Main Stem

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Angiographic evaluation of lesions of the left main stem presents particular challenges and high procedural complexity. The clinical sequelae of a suboptimal result in this context may be severe, and thus, it is recommended that patients with left-main lesions be considered for imaging-guided interv...

Angiographic evaluation of lesions of the left main stem presents particular challenges and high procedural complexity. The clinical sequelae of a suboptimal result in this context may be severe, and thus, it is recommended that patients with left-main lesions be considered for imaging-guided interventions by means of optimal coherence tomography (OCT) in non-ostial left main lesions. The investigators have previously demonstrated in a randomized trial of patients undergoing PCI for a lesion responsible for non ST elevation acute coronary syndromes that OCT provides useful clinical information beyond that obtained by angiography alone, and OCT-guidance for angioplasty in these patients yielded a significantly higher proportion of patients with an optimal functional result after stenting. In this context, the aim of the present study is to evaluate whether OCT-guided left-main angioplasty is superior to left main angioplasty guided by fluoroscopy alone, as assessed by fractional flow reserve (FFR) measured after stent implantation. Eligible patients must be aged 18 years and over, admitted for acute coronary syndrome (ACS) or stable coronary artery disease (CAD); AND present an angiographically significant non-ostial lesion of the left main stem requiring angioplasty with drug eluting stent implantation.

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