학술논문

Left Ventricular Thrombus Management After Acute Myocardial Infarction in Clinical Practice: Results from LEVITATION Survey and Narrative Review
Document Type
Original Paper
Source
Cardiovascular Drugs and Therapy. 38(3):483-492
Subject
Left ventricular thrombus
ST-elevation myocardial infarction (STEMI)
Direct oral anticoagulant (DOAC)
Antithrombotic therapy
Acute cardiac care
Survey
Language
English
ISSN
0920-3206
1573-7241
Abstract
Abstract: Purpose: Left ventricular thrombus (LVT) after ST-elevation myocardial infarction still presents diagnostic and therapeutic challenges. The LEVITATION survey was designed to take a picture of LVT management in current clinical practice.Methods: The survey covered diagnostic, therapeutic, and prophylactic issues and was completed by 104 European cardiac centers. Most of them (59%) were university or tertiary centers.Results: The survey showed anterior apical a-/dyskinesia, large MI, spontaneous echo-contrast, late presentation with delayed PCI, and TIMI flow 0–1 as the most important perceived risk factors for LVT formation. Serial ultrasound imaging is the most used tool to diagnose LVT (88% of the centers), with contrast-enhanced ultrasound and cardiac MR performed in case of poor apex visualization or spontaneous echo-contrast. One third (34%) of the centers uses prophylactic anticoagulation to prevent LVT formation. In the presence of LVT, low molecular weight heparin is the most used in-hospital therapy. At discharge, vitamin K antagonist and direct oral anticoagulants are used in 67 and 32% of the cases, respectively. Triple antithrombotic therapy with aspirin plus clopidogrel and VKA is the most used strategy at discharge (55%), whereas a single antiplatelet therapy is preferred only in the case of moderate-to-high risk of bleeding. To assess LVT total regression, half of the centers use contrast-enhanced ultrasound and/or cardiac-MR. The duration of anticoagulation is usually 3–6 months (55%), with long-term prolongation in case of LVT persistence or recurrence.Conclusion: The survey has depicted for the first time the current real-world management of this neglected topic and has highlighted several grey zones that are still present and not supported by evidence.