ArticleJRSM cardiovascular disease
Clinical value of non-electrocardiogram-gated computed tomography angiography for planning transcatheter aortic valve implantation: A retrospective single-centre study.
Article in JRSM cardiovascular disease. 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
Purpose: Computed tomography angiography (CTA) is a key component of preprocedural planning for transcatheter aortic valve implantation (TAVI). Although current guidelines recommend electrocardiogram (ECG)-gated acquisition of the aortic root, non-ECG-gated CTA protocols are still used in clinical practice. The present study aimed to evaluate the clinical feasibility and safety of a non-ECG-gated CTA protocol for TAVI planning. Methods: We conducted a retrospective, single-centre observational study including 194 consecutive patients who underwent TAVI between January 2012 and December 2024 and were planned using a non-ECG-gated, single-phase CTA protocol Results: CTA measurements were successfully used to guide prosthesis sizing in all patients. Thirty-day all-cause mortality was 3.6%, stroke or transient ischaemic attack occurred in 1.5% of patients, and vascular complications were observed in 6.7%. Conduction disturbances occurred in 38.1% of patients, while new permanent pacemaker implantation was required in 3.1%. Paravalvular leak (PVL) was predominantly mild; no cases of severe PVL were observed, and no patient required surgical or interventional correction for PVL. Conclusion: This study demonstrates that a non-ECG-gated CTA protocol appears feasible and may support TAVI planning in selected centres with experienced teams. In this single-centre experience, a non-ECG-gated CTA protocol provided sufficient anatomical information for TAVI planning, with acceptable short-term clinical outcomes. While ECG-gated CTA remains the reference standard, this approach may represent a pragmatic alternative when integrated into a structured workflow.
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