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Updated: Sep 10, 2025

Upper-extremity Approach for Secondary Access in Transfemoral Transcatheter Aortic Valve Implantation
Published on: August 8, 2025
Impact of Aortic Atherosclerosis on Clinical Outcomes After Transfemoral Transcatheter Aortic Valve Replacement
Yoshinori Shirai1, Akihito Tanaka1, Yoshiyuki Tokuda2
1Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Insights
Aortic atherothrombotic lesions are common in patients undergoing transfemoral TAVR. While short-term outcomes showed no significant impact, long-term mortality was numerically higher in patients with these lesions.
Area of Science:
- Cardiovascular Medicine
- Interventional Cardiology
- Vascular Surgery
Background:
- Aortic atherothrombotic lesions pose risks of systemic embolization and adverse events during interventional procedures.
- Understanding the impact of aortic atherosclerosis is crucial for patient management in TAVR.
Purpose of the Study:
- To evaluate the association between the extent of aortic atherosclerosis and clinical outcomes following transfemoral transcatheter aortic valve replacement (TAVR).
Main Methods:
- A single-center observational study included 278 patients undergoing transfemoral TAVR.
- Preoperative computed tomography assessed aortic atherosclerosis, defining lesions as intimal thickening ≥4mm or mobile/ulcerated atheroma.
- Patients were grouped based on the presence or absence of atherothrombotic lesions, with outcomes including mortality, stroke, embolism, and renal function monitored.
Main Results:
- Atherothrombotic lesions were identified in 41.4% of patients; those with lesions had worse baseline renal function.
- No significant short-term differences in all-cause death, stroke, systemic embolism, or worsening renal function were observed within 1 month.
- Over a median 3-year follow-up, all-cause mortality was numerically higher in patients with atherothrombotic lesions.
Conclusions:
- Atherothrombotic lesions are frequently detected in patients undergoing transfemoral TAVR.
- Aortic atherosclerosis did not significantly affect short-term adverse outcomes post-TAVR.
- A trend towards increased long-term mortality was noted in patients with atherothrombotic lesions.
Background:
Aortic atherothrombotic lesions can cause systemic embolization and adverse outcomes after interventional procedures.
Aims:
This study aimed to assess the association between the degree of aortic atherosclerosis and clinical outcomes after transfemoral transcatheter aortic valve replacement (TAVR).
Methods:
This single-center observational study included data from 278 patients who underwent transfemoral TAVR. The degree of aortic atherosclerosis in the ascending aorta, aortic arch, descending aorta, and abdominal aorta according to preoperative enhanced computed tomography was evaluated, and extensive intimal thickening ≥ 4 mm or mobile-looking, ulcerated or protruding atheroma were considered to be atherothrombotic lesions. Patients were classified into two groups: those with and without atherothrombotic lesions. Clinical outcomes, including all-cause death, stroke, systemic embolization, and worsening renal function, were investigated.
Results:
Of 278 patients, 116 (41.4%) exhibited atherothrombotic lesions. Baseline renal function was significantly worse in patients with atherothrombotic lesions. There were no significant differences in the occurrence of all-cause death (0% vs. 0.6%; p > 0.99), stroke (3.5% vs. 2.5%; p = 0.72), systemic embolism (0.9% vs. 0%; p = 0.42), and worsening renal function (increase in serum creatinine ≥ 0.3 mg/dL or ≥ 1.5-fold from baseline; 5.4% vs. 5.2%; p = 0.93) within 1-month. During a median follow-up of 3.0 years (interquartile range 2.0-4.0 years), the occurrence of all-cause death was numerically higher in patients with atherothrombotic lesions compared to those without.
Conclusions:
Atherothrombotic lesions were commonly observed in patients undergoing transfemoral TAVR. No significant clinical effect of aortic atherosclerosis on short-term adverse outcomes was observed, although long-term mortality was numerically higher in patients who exhibited atherothrombotic lesions.
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