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Left Main Coronary Artery SpasmA Potential Cause for Angiographic Misdiagnosis of Severe Coronary Artery Disease
Edward S. Murphy, MD;
Josef Rösch, MD;
O. Willis Boicourt, MD;
Shahbudin H. Rahimtoola, MB, FRCP
Arch Intern Med. 1976;136(3):350-351.
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Left main coronary artery disease i has recently received considerable emphasis with regard to diagnosis, prognosis, and treatment.1-7 Coronary artery spasm commonly occurs in the right coronary artery system8-20 and more recently has also been described in the left anterior descending and circumflex coronary arteries.21-25 Spasm of the left main coronary artery has not, to our knowledge, been documented previously. We describe two patients who had spasm of the left main coronary artery during diagnostic coronary arteriography. Spasm of the left main coronary artery must be considered in the differential diagnosis of left main coronary artery lesions.
PATIENT SUMMARIES
PATIENT 1.—
Ten days prior to hospital admission, a 57-year-old woman had a near syncopal episode associated with precordial chest pain that was typical of ischemic cardiac pain. She had known of a heart murmur since age 20. There were no other symptoms. She had a blood pressure
. . . [Full Text PDF of this Article]
Author Affiliations
From the Division of Cardiology, Department of Medicine (Drs Murphy and Rahimtoola), and Department of Radiology (Dr Rösch), University Hospital, University of Oregon Health Sciences Center, and the Department of Medicine, St Vincent Hospital, Portland, Ore (Dr Boicourt).
Footnotes
Received for publication Sept 3, 1975; accepted Sept 29.
Reprint requests to Division of Cardiology, University of Oregon Health Sciences Center, Portland, OR 97201 (Dr Murphy).
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