Abstract
BackgroundCardiac allograft vasculopathy (CAV) assessment post-heart transplantation (HT) typically relies on invasive coronary angiography (ICA). However, cardiac computed tomography angiography (CCTA) is emerging as a promising alternative due to its potential benefits in economic, safety, and logistical aspects. This study aimed to evaluate the impact of a CCTA program on these aspects in CAV surveillance post-HT. MethodsA retrospective single-center study was conducted between March 2021 and February 2023, involving HT patients who underwent either CCTA or ICA. ResultsAmong 260 patients undergoing CAV surveillance, 115 (44.2%) patients underwent CCTA, and 145 (55.8%) patients underwent ICA. The CCTA group showed incurred lower overall costs (p < 0.0001) and shorter hospitalization times (p < 0.0001) compared to the ICA group. In terms of safety, CCTA surveillance required significantly lower contrast volumes (p < 0.0001) and lower effective doses (p = 0.03). ConclusionCCTA emerges as a safe and cost-effective non-invasive alternative for CAV surveillance post-HT, outperforming ICA in terms of safety, logistical aspects, and economic burden.
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