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Associated vascular lesions in patients with spontaneous coronary artery dissection

Stefan Toggweiler1, Marietta Puck, Christoph Thalhammer

  • 1Cardiovascular Center, Cardiology, University Hospital Zurich, Switzerland.

Swiss Medical Weekly
|March 6, 2012
PubMed

Insights

Vascular abnormalities, including fibromuscular dysplasia and renal artery dissection, were found in 25% of patients with spontaneous coronary artery dissection (SCAD). Further renal artery evaluation is recommended for SCAD patients.

Area of Science:

  • Cardiovascular Medicine
  • Radiology
  • Vascular Imaging

Background:

  • Spontaneous coronary artery dissection (SCAD) is a rare but serious condition.
  • The underlying causes and associated vascular abnormalities of SCAD are not fully understood.
  • Identifying co-existing vascular conditions may improve patient management.

Purpose of the Study:

  • To investigate the prevalence of vascular abnormalities in patients diagnosed with SCAD.
  • To assess the utility of whole-body MR angiography and duplex sonography in detecting these abnormalities.
  • To determine if specific vascular conditions are more common in SCAD patients.

Main Methods:

  • Whole-body MR angiography was performed on 12 SCAD patients (9 women, 3 men).
  • Duplex sonography was used to evaluate renal and carotid arteries.
  • Findings were analyzed to identify any vascular abnormalities.

Main Results:

  • Renal artery abnormalities were detected in 3 out of 12 patients (25%).
  • These included fibromuscular dysplasia (FMD) in two women and spontaneous renal artery dissection in one woman.
  • No other systemic vascular abnormalities were identified in the study cohort.
  • Duplex sonography confirmed non-significant renal artery stenoses in the FMD patients.

Conclusions:

  • A significant proportion of SCAD patients (25%) exhibit renal artery abnormalities.
  • Fibromuscular dysplasia and spontaneous renal artery dissection are potential associated conditions.
  • Consideration of additional renal artery imaging, such as angiography or duplex sonography, is warranted in SCAD patients.
Abstract

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