Original Research | By Kim SS, Yamamoto MH, Maehara A et al.
We sought to clarify intravascular ultrasound (IVUS) features of rotational atherectomy (RA) of calcified lesions. IVUS was performed post-RA and post-stent in 38 lesions and analyzed every 1 mm. Pre-intervention IVUS was performed when the IVUS catheter crossed the lesion (n = 11). Calcium Index was average calcium angle multiplied by calcium length. We compared lowest (n = 13), middle (n = 13), and...
Letter | By Zhou F, Tang CX, Schoepf UJ et al.
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Original Research | By Sara JDS, Corban MT, Prasad M et al.
AIMS - Myocardial bridging (MB), characterized by the epicardial coronary vessel diving into the myocardium, is present up to 1/3rd of adults and is associated with accelerated atherosclerosis, and angina. In the current study we determine the association between MB and coronary endothelial dysfunction. METHODS AND RESULTS - Patients with chest pain and nonobstructive CAD (stenosis < 40%) at angiography un...
Fractional flow reserve derived from CCTA may have a prognostic role in myocardial bridging
Original Research | By Zhou F, Tang CX, Zhang LJ et al.
PURPOSE - To evaluate the feasibility of fractional flow reserve (cFFR) derivation from coronary CT angiography (CCTA) in patients with myocardial bridging (MB), its relationship with MB anatomical features, and clinical relevance. METHODS - This retrospective study included 120 patients with MB of the left anterior descending artery (LAD) and 41 controls. MB location, length, depth, muscle index, insta...
Original Research | By Monroy-Gonzalez AG, Alexanderson-Rosas E, Prakken NHJ et al.
Original Research | By Tajti P, Karmpaliotis D, Alaswad K et al.
BACKGROUND - We examined the procedural outcomes of chronic total occlusions (CTO) percutaneous coronary interventions in patients with prior coronary artery bypass graft surgery (CABG). METHODS AND RESULTS - We compared the clinical, angiographic characteristics and outcomes of 3486 CTO interventions performed in patients with (n=1101) and without (n=2317) prior CABG at 21 centers. Prior CAB...