Total Ischaemic Burden European Trial (TIBET). Effects of ischaemia and treatment with atenolol, nifedipine SR and their combination on outcome in patients with chronic stable angina. The TIBET Study Group.
OBJECTIVE
To study the relationship between presence or absence of ischaemic events on Holter monitoring and occurrence of a hard or hard+soft endpoint.


METHODS
A randomized double-blind parallel group study of atenolol, nifedipine and their combination, with ambulatory monitoring off-treatment and after 6 weeks of randomized treatment and prospective follow-up of 2 years on average.


METHODS
Europe.


METHODS
682 men and women with a diagnosis of chronic stable angina and who were not being considered for surgery.


RESULTS
Hard endpoints were cardiac death, nonfatal myocardial infarction and unstable angina; soft endpoints were coronary artery bypass surgery, coronary angioplasty and treatment failure.


RESULTS
The study showed no evidence of an association between the presence, frequency or total duration of ischaemic events on Holter monitoring, either on or off treatment, and the main outcome measures. There was a non-significant trend to a lower rate of hard endpoints in the group receiving combination therapy. Compliance, as measured by withdrawal from trial medication, was clearly poorest in the nifedipine group with similar withdrawal rates in the atenolol and combination therapy groups.


CONCLUSIONS
The recording of ischaemic events in 48 h Holter monitoring failed to predict hard or hard+soft endpoints in patients with chronic stable angina.
Dargie
H J
HJ
University of Glasgow, UK.
Ford
I
I
Fox
K M
KM
D000319:Adrenergic beta-Antagonists / Q000009:adverse effects / Q000627:therapeutic use*; D000328:Adult; D000368:Aged; D000787:Angina Pectoris / Q000175:diagnosis / Q000188:drug therapy* / Q000401:mortality; D001262:Atenolol / Q000009:adverse effects / Q000627:therapeutic use*; D002121:Calcium Channel Blockers / Q000009:adverse effects / Q000627:therapeutic use*; D003327:Coronary Disease / Q000175:diagnosis / Q000188:drug therapy* / Q000401:mortality; D004311:Double-Blind Method; D004359:Drug Therapy, Combination; D015716:Electrocardiography, Ambulatory / Q000187:drug effects*; D005060:Europe; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009543:Nifedipine / Q000009:adverse effects / Q000627:therapeutic use*; D011446:Prospective Studies; D015996:Survival Rate; D016896:Treatment Outcome
D000319:Adrenergic beta-Antagonists; D002121:Calcium Channel Blockers; D001262:Atenolol; D009543:Nifedipine