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Title: Correlation of clinical and electrocardiography variables with coronary lesions in unstable angina pectoris.
Author: Salahas A, Kranidis A, Kostopoulos K, Antonelis I, Kolettis M.
Journal: Angiology; 1995 Sep; 46(9):827-32. PubMed ID: 7661386.
Abstract:
The relation of clinical and electrocardiographic variables to the severity of coronary lesions in unstable angina was studied in 84 men and 8 women, aged thirty-nine to seventy-five, who were subjected to coronary arteriography within two weeks. Eighty-seven patients (94.6%) had significant stenosis (50% of the diameter) of at least one vessel, whereas 5 (5.4%) had normal coronary arteries. Eleven (12%) had one-vessel disease, 13 (14%) had two-vessel, and 63 (68.5%) had three-vessel disease. Twelve (13%) had also significant left main stem stenosis. Except for 1 patient with artificial pacemaker, three-vessel and/or left main stem disease was present in 20 (100%) patients with ST segment deviation > or = 0.2mV as compared with 20 of 36 patients (55.5%) with ST segment deviation of 0.1-0.19 mV and 24 of the 35 (68.6%) with no additional ECG changes or with T wave inversion only (P < 0.005). The direction of ST segment deviation (elevation or depression) made no difference. Preexisting angina or infarction was associated with three-vessel disease and/or left main stem disease in 74.1% and 81.4%, respectively, as compared with 45.5% (P = 0.05) of the patients with angina of recent onset. Pain at rest persisting for more than forty-eight hours was associated with three-vessel and/or main stem disease in 93.1% of the patients as compared with 60.3% of patients in whom rest angina subsided within forty-eight hours (P < 0.01).(ABSTRACT TRUNCATED AT 250 WORDS)

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