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Left coronary artery anatomy in patients with bicuspid aortic valves.
  1. A D Johnson,
  2. J H Detwiler,
  3. C B Higgins


    The anatomy of the proximal left coronary artery in 33 adult patients with bicuspid aortic valves was compared with that in 33 adult patients with aortic valve disease of other aetiologies and with that in 50 adult control patients with no valve or congenital heart disease. Patients with bicuspid aortic valves had a higher incidence of immediate bifurcation of the left main coronary artery, of left main coronary length less than 10 mm, and of left coronary artery dominance. The mean length of the left main coronary artery was significantly less in the patients with bicuspid aortic valves. These variations from the usual coronary artery anatomy may be part of the developmental abnormalities responsible for bicuspid aortic valves, and require evaluation and consideration when considering angiography and valve replacement in patients with aortic stenosis.

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