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Routine preoperative carotid duplex scanning in patients undergoing open heart surgery: is it worthwhile?

E Ascher1, A Hingorani, W Yorkovich

  • 1Division of Vascular Surgery, Maimonides Medical Center, 4802 Tenth Avenue, Brooklyn, N York 11219, USA.

Annals of Vascular Surgery
|January 5, 2002
PubMed
Summary

Carotid screening is recommended for open heart surgery patients over 60. For those under 60 undergoing coronary artery bypass grafting, screening is advised only with at least two major risk factors: hypertension, diabetes, or smoking.

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Area of Science:

  • Vascular Surgery
  • Cardiology
  • Diagnostic Imaging

Background:

  • Carotid screening's cost-effectiveness is linked to severe carotid stenosis prevalence over 4.5%.
  • Identifying patient groups for beneficial carotid screening is crucial, especially for those undergoing open heart surgery.

Purpose of the Study:

  • To evaluate the necessity of preoperative carotid duplex scanning in patients undergoing open heart surgery.
  • To determine age- and risk-factor-based recommendations for carotid screening in this population.

Main Methods:

  • Analysis of preoperative duplex scan results from 3708 open heart surgery patients (Jan 1995-July 1998).
  • Patients categorized by age (<60, 61-80, >80) and analyzed for risk factors (hypertension, smoking, diabetes).
  • Statistical analysis included chi-squared, Fisher's exact test, linear regression, and multivariate analysis.

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Main Results:

  • Carotid screening is not recommended for patients under 60 undergoing CABG without at least two major risk factors (hypertension, diabetes, smoking).
  • Carotid screening is recommended for all open heart surgery patients aged 60 and older, irrespective of other risk factors.

Conclusions:

  • Age is a significant factor in recommending carotid screening for open heart surgery patients.
  • Tailored screening protocols based on age and risk factors can optimize resource allocation and patient care.