ArticleCatheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions2025
Prevalence of Aspirin Resistance in Patients with Transcatheter Pulmonary Valve Replacement.
Article in Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions, 2025. 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
backgroundCongenital heart disease (CHD) patients with pulmonary valve failure may undergo transcatheter pulmonary valve replacement (TPVR). Aspirin is often prescribed as long-term therapy after TPVR to prevent thromboembolic events (TE).
aimsWe aimed to examine the prevalence of aspirin resistance within the CHD TPVR population.
methodsThe VerifyNow point-of-care test quantifies platelet aggregation as Aspirin Reactivity Units (ARU). ARU values greater than 550 suggest aspirin resistance (AR). A retrospective chart review analyzed ARU test results from May 2022 through December 2023 in CHD patients following successful TPVR (n = 48). Lifelong TE history was collected. Association between AR and sex, race, and ethnicity was examined with Fisher's Exact test, and the Wilcoxon rank sum exact test analyzed associations between AR and age.
resultsThree of 45 (6.67%) CHD TPVR aspirin-compliant patients (average age 33.14 years; range 0.74-77.86 years, 47% females) were AR. Interestingly, all AR patients were females, suggesting higher AR prevalence in females (p = 0.094). No significant associations were found between AR and age (p = 0.8), race (p = 0.077), or ethnicity (p = 0.2). No AR patients had a documented history of TE. Five of 42 (11.9%) aspirin sensitive patients had TE while taking aspirin, including two females (not on birth control at time of event) and three males.
conclusionsAR is prevalent in CHD TPVR patients, but TE occurrence did not correlate with AR. However, AR exclusively in females and TE in aspirin sensitive patients, suggests need for further investigations on the most effective TE prophylaxis in this population.
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