CBS 2019
CBSMD教育中心
中 文

Scientific Library

Abstract

Recommended Article

T and small protrusion (TAP) vs double kissing crush technique: Insights from in-vitro models Efficacy and Safety of Ticagrelor Monotherapy in Patients Undergoing Multivessel PCI Functional and morphological assessment of side branch after left main coronary artery bifurcation stenting with cross-over technique Ticagrelor Monotherapy Versus Dual-Antiplatelet Therapy After PCI: An Individual Patient-Level Meta-Analysis Combined Assessment of Stress Myocardial Perfusion Cardiovascular Magnetic Resonance and Flow Measurement in the Coronary Sinus Improves Prediction of Functionally Significant Coronary Stenosis Determined by Fractional Flow Reserve in Multivessel Disease Sildenafil for improving outcomes in patients with corrected valvular heart disease and persistent pulmonary hypertension: a multicenter, double-blind, randomized clinical trial Global Approach to High Bleeding Risk Patients With Polymer-Free Drug-Coated Coronary Stents: The LF II Study A Notch3-Marked Subpopulation of Vascular Smooth Muscle Cells Is the Cell of Origin for Occlusive Pulmonary Vascular Lesions.

Original ResearchAvailable online 10 September 2020

JOURNAL:Cardiovasc Revasc Med. Article Link

T and small protrusion (TAP) vs double kissing crush technique: Insights from in-vitro models

V Paradies, Jaryl Ng, HY Ang et al. Keywords: bifurcation lesions; double stenting; in-vitro models; thrombogenicity

ABSTRACT


BACKGROUND - Percutaneous coronary interventions on complex bifurcation lesions may require implantation of two stents to appropriately treat diffuse side-branch (SB) disease. Comparisons among different bifurcation stenting techniques are continuously attempted by various study designs (bench tests, computer simulations, clinical studies). Among different techniques, double kissing crush (DKC) represents the last evolution for crushingwhile T and small Protrusion (TAP) represents the evolution of T stenting. Both techniques are actually gaining popularity, but head-to-head comparisons are lacking.

 

METHODS AND RESULTS - Two last generation drug-eluting stents (Synergy, Boston Scientific, MA, USA and Ultimaster,Terumo Corp., Japan) were implanted in left main bifurcation bench models using TAP (n = 6 sets) and DKC (n = 6 sets) techniques. A peristaltic pump with fresh porcine blood was used to perfuse the blood through the silicone model at a flow rate of 200 ml/min for 4 min. Optical coherence tomography (OCT) was used to assess stent struts geometry and thrombus formation. SB cross sectional area as well as SB obstruction did not significantly differ between the two techniques. Numerical (but not statistically significant) differences were found in terms of malapposed struts (fewer with TAP) and floating struts (fewer with DKC). Thrombus formation after blood perfusion was similar between TAP and DKC technique (1.53 ± 1.12 vs. 1.20 ± 1.01 mm2, p = 0.6).

 

CONCLUSION - The result of the present in-vitro study shows the absence of significant difference between TAP and DKC in terms of stent struts apposition and acute thrombus formation potential. Despite the completely different technical steps required, both techniques have similar performance according to such articulated pre-clinical evaluation.