New-onset angina pectoris: initial characteristics and results of a 6 to 12-month follow-up.
173 patients, aged 46.8 years on the average, were examined in the first 3 months after onset of angina pectoris. 97% of them presented at least one of risk factors (smoking, arterial hypertension, overweight, dyslipoproteinaemia), in 79% two or more risk factors were present simultaneously. A greater than 70% stenosis of one coronary artery was present in 51%, in 10% the stenosis was smaller than 70%, in 4% the coronary arteries were intact. In 131 patients without a history of myocardial infarction, vasospastic angina, overweight, and simultaneous presence of 3 or 4 risk factors occurred more frequently than in 42 patients with a history of myocardial infarction. In the first month, complications were registered only in patients with unstable angina pectoris (5 out of 41, i.e., 12%). During the later period of follow-up in 102 patients, complications occurred in 5% and complete clinical remission was registered in 35%. In patients with remission, positive exercise tests and haemodynamically significant stenoses of 2 or 3 coronary arteries were less frequently found on initial examination than in patients with sustained angina pectoris.
Ananich
V A
VA
Institute of Preventive Cardiology, USSR Cardiology Research Centre, Academy of Medical Sciences of USSR, Moscow.
Gratsianskii
N A
NA
Karasev
A V
AV
Olferiev
A M
AM
Nechaev
A S
AS
Yanus
V M
VM
Oganov
R G
RG
D000328:Adult; D000368:Aged; D000787:Angina Pectoris / Q000175:diagnosis* / Q000209:etiology / Q000503:physiopathology; D004562:Electrocardiography; D005260:Female; D005500:Follow-Up Studies; D006439:Hemodynamics; D006801:Humans; D008297:Male; D008875:Middle Aged; D012074:Remission Induction; D012307:Risk Factors