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Single direct oral anticoagulant therapy in stable patients with atrial fibrillation beyond 1 year after coronary stent implantation Current Status and Future Prospects of Transcatheter Mitral Valve Replacement: JACC State-of-the-Art Review Gut microbiota dysbiosis promotes age-related atrial fibrillation by lipopolysaccharide and glucose-induced activation of NLRP3-inflammasome Does pulsed field ablation regress over time? A quantitative temporal analysis of pulmonary vein isolation Detection of Device-Related Thrombosis Following Left Atrial Appendage Occlusion A Comparison Between Cardiac Computed Tomography and Transesophageal Echocardiography​: A Comparison Between Cardiac Computed Tomography and Transesophageal Echocardiography Role of local coronary blood flow patterns and shear stress on the development of microvascular and epicardial endothelial dysfunction and coronary plaque Left Atrial Appendage Occlusion during Cardiac Surgery to Prevent Stroke Management and outcomes of patients with left atrial appendage thrombus prior to percutaneous closure Rivaroxaban Is Associated With Higher Rates of Gastrointestinal Bleeding Than Other Direct Oral Anticoagulants: A Nationwide Propensity Score–Weighted Study Transseptal puncture versus patent foramen ovale or atrial septal defect access for left atrial appendage closure

Clinical Trial2018 Aug 16.

JOURNAL:Cardiovasc Revasc Med. Article Link

A randomised trial comparing two stent sizing strategies in coronary bifurcation treatment with bioresorbable vascular scaffolds - The Absorb Bifurcation Coronary (ABC) trial

Rampat R, Mayo T, Hildick-Smith D et al. Keywords: Absorb; BVS; Bioresorbable vascular scaffold; Coronary bifurcation

ABSTRACT


BACKGROUNDLimited information is available on the use of Bioresorbable Vascular Scaffold (BVS) in bifurcations involving significant side branches. When treating bifurcation disease with metal stents, the recommendation is to choose a stent diameter based on the distal main vessel diameter. Whether this sizing strategy is applicable to BVS is currently unknown.


METHODS - We randomised 37 patients undergoing elective PCI for 'false' bifurcation disease (Medina 0,1,0; 1,0,0; 1,1,0) to receive BVS based either on proximal or distal reference diameters. Optical Frequency Domain Imaging (OFDI) measurements were performed pre BVS insertion to obtain proximal and distal reference diameters and post implantation. BVS size was chosen according to the proximal or distal reference diameter as per randomisation. Implantation was performed using the PSP technique tailored to bifurcation stenting. OFDI was repeated post implantation to confirm satisfactory expansion and apposition.

RESULTS - Baseline demographics between the two groups were similar. Patients were aged 62.8 ± 3.3 years; 76% were male. Mean side branch diameter was 2.24 ± 0.13 mm. TIMI III flow in the main vessel was achieved in all cases. Side branch occlusion occurred in 1 case (2.7%). In the distal-sizing arm, there was a greater incidence of significant malapposition (>300 μm) at the proximal end of the scaffold on OCT (2.3% versus 0.8%, p 0.023). The incidence of distal edge dissections was numerically greater in the proximal-sizing group but this was not statistically significant (31.3% vs 11.8%, p 0.17).

CONCLUSION - Both proximal and distal sizing strategies have similar procedural complication rates when using the ABSORB BVS to treat coronary bifurcations. However a proximal sizing strategy is associated with less malapposition and may be preferable.

Copyright © 2018 Elsevier Inc. All rights reserved.