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Pulmonary Artery Pressure-Guided Management of Patients With Heart Failure and Reduced Ejection Fraction Coronary Angiography after Cardiac Arrest without ST-Segment Elevation Randomized Comparison Between Radial and Femoral Large-Bore Access for Complex Percutaneous Coronary Intervention Application of High-Sensitivity Troponin in Suspected Myocardial Infarction Management of Percutaneous Coronary Intervention Complications: Algorithms From the 2018 and 2019 Seattle Percutaneous Coronary Intervention Complications Conference European Bifurcation Club White Paper on Stenting Techniques for Patients With Bifurcated Coronary Artery Lesions Mechanisms and diagnostic evaluation of persistent or recurrent angina following percutaneous coronary revascularization Novel functions of macrophages in the heart: insights into electrical conduction, stress, and diastolic dysfunction Effects of Aspirin for Primary Prevention in Persons with Diabetes Mellitus Hemodynamic Response to Nitroprusside in Patients With Low-Gradient Severe Aortic Stenosis and Preserved Ejection Fraction

Clinical TrialAugust 2018. [Epub ahead]

JOURNAL:JACC Cardiovasc Interv. Article Link

A Randomized Study of Distal Filter Protection Versus Conventional Treatment During Percutaneous Coronary Intervention in Patients With Attenuated Plaque Identified by Intravascular Ultrasound

K Hibi, K Kozuma, S Sonoda et al. Keywords: acute coronary syndrome(s); distal embolism; distal protection device; intravascular ultrasound

ABSTRACT


OBJECTIVES - The aim of this study was to evaluate the utility of distal protection during percutaneous coronary intervention (PCI) in patients with acute coronary syndromes at high risk for distal embolization.


BACKGROUND - The results of previous clinical trials indicated that the routine use of distal protection in patients with ST-segment elevation myocardial infarction did not improve clinical outcomes. However, selective use of distal protection by means of a filter-based distal protection system has not been evaluated.

METHODS - Two hundred patients with acute coronary syndromes who had native coronary artery lesions and attenuated plaque with longitudinal length ≥5 mm on pre-PCI intravascular ultrasound were randomly assigned to undergo PCI with distal protection or conventional treatment.

RESULTS - The primary endpoint (no-reflow phenomenon) occurred in 26 patients (26.5%) in the distal protection group and 39 patients (41.7%) in the conventional treatment group (p = 0.026), and the corrected TIMI (Thrombolysis In Myocardial Infarction) frame count after revascularization was significantly lower in the distal protection group (23 vs. 30.5; p = 0.0003). The incidence of cardiac death, cardiac arrest, cardiogenic shock after revascularization requiring defibrillation, cardiopulmonary resuscitation, or extracorporeal membrane oxygenation was significantly lower in the distal protection group than in the conventional treatment group (0% vs. 5.2%; p = 0.028).

CONCLUSIONS - The use of distal embolic protection applied with a filter device decreased the incidence of the no-reflow phenomenon and was associated with fewer serious adverse cardiac events after revascularization than conventional PCI in patients with acute coronary syndromes with attenuated plaque ≥5 mm in length. (Assessment of Distal Protection Device in Patients at High Risk for Distal Embolism in Acute Coronary Syndrome [ACS] [VAMPIRE3]; NCT01460966)