ArticleIndian heart journal
ANti-Thrombotic strAtegy for the management of nonocclusive thRombus with ST-segment elevation myocardial infarCtion in young pAtients - ANTARTICA study.
Article in Indian heart journal. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
introductionVarious cardiovascular thrombo-embolic clinical entities use combined ATS for prevention and treatment. After PCI, AF patients are typically prescribed DOAC, DAPT/SAPT, as component of ATS to minimize stroke risk and treat pulmonary embolism and venous thromboembolism. Some small observational studies have shown that a combined ATS can clear small thrombi in LV dysfunction and/or apical aneurysms. Therefore, we present a practical, cost-effective, and proof-of-concept ATS for non-occlusive significant coronary thrombus in young, clinically stable STEMI patients based on the aforementioned experiences.
methodsWe retrospectively reviewed 145 stable STEMI cases with nonocclusive thrombus and thrombolysis in myocardial infarction flow 2/3 who received dabigatran and clopidogrel (ATS arm). They were compared to 147 comparable patients who received standard-of-care PCI (Control arm). At presentation and 6-months after ATS, NYHA functional class and LVEF were measured in all subjects. All the patients in the ATS arm underwent CT-CAG at 6-months. We examined significant safety outcomes like hemorrhage, reinfarction, and cardiac mortality.
resultsThe primary angiographic outcome demonstrated complete resolution of the thrombus in all the cases of ATS arm. In the ATS arm, the clinical secondary outcome showed a greater improvement in NYHA class, from 3.53 to 1.07, compared to the control group's 3.6 to 1.49 (p = 0.013). Also, the secondary echocardiographic outcome demonstrated a significant improvement in LVEF from a mean of 45.1 %-49.2 % in the ATS arm vs. 44.0 %-44.9 % in the control arm (p < 0.001). Clinical safety indicated TIMI bleeding and reinfarction reductions. There was no mortality in either arm.
conclusionDelaying PCI and treating STEMI patients with antithrombotic drugs reduced no-reflow, distal embolization, and intraprocedural thrombotic events. The medical intervention improved myocardial preservation alone.
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