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Larger common femoral artery diameter is a risk factor for type A acute aortic dissection

Makoto Ikematsu1, Keiji Uchida2, Tomoki Cho2

  • 1Cardiovascular Center, Yokohama City University Medical Center, Yokohama, Kanagawa, Japan. ikematsu@yokohama-cu.ac.jp.

General Thoracic and Cardiovascular Surgery
|May 9, 2026
PubMed

Insights

Common femoral artery (CFA) diameter may predict type A acute aortic dissection (TAAAD). Larger CFA diameters were observed in TAAAD patients, suggesting a potential association with TAAAD risk.

Area of Science:

  • Vascular Surgery
  • Cardiovascular Imaging
  • Aortic Disease

Background:

  • The exact causes of type A acute aortic dissection (TAAAD) are not fully understood.
  • Identifying reliable predictors for TAAAD is crucial for early diagnosis and intervention.

Purpose of the Study:

  • To evaluate the common femoral artery (CFA) diameter as a potential predictor for TAAAD.
  • To compare CFA dimensions between patients with TAAAD and a control group.

Main Methods:

  • Retrospective analysis of 100 TAAAD patients and 100 controls.
  • CFA diameters were measured using contrast-enhanced CT scans.
  • Comparison of CFA measurements between the TAAAD and control groups.

Main Results:

  • Patients with TAAAD had significantly larger CFA diameters (11.2 mm vs. 9.0 mm, p < 0.001).
  • CFA diameter showed good discriminatory performance (AUC = 0.88) for predicting TAAAD.
  • A CFA cutoff of 10.5 mm achieved 70% sensitivity and 90% specificity.

Conclusions:

  • Common femoral artery diameter is significantly larger in patients with TAAAD.
  • CFA diameter may serve as a valuable imaging biomarker for TAAAD risk assessment.
Abstract

Keywords:
Common femoral arteryEtiologyType A acute aortic dissection

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