Bypass Angioplasty Revascularization Investigation (BARI)

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Accession Number

Study Type
Clinical Trial

Collection Type
Open BioLINCC Study See bottom of this webpage for request information

Study Period

NHLBI Division

Dataset(s) Last Updated
July 17, 2020

Primary Publication URLs


Commercial Use Data Restrictions No

Data Restrictions Based On Area Of Research No

Available Data

The database contains a subset of the trial data and includes baseline characteristics and 10 year followup information on all 1,829 patients. Endpoints include subsequent revascularization, new myocardial infarction or death.


The BARI (Bypass Angioplasty Revascularization Investigation) trial was designed to compare survival in patients randomized to receive either percutaneous transluminal coronary balloon angioplasty (PTCA) or coronary artery bypass grafting (CABG).


Angioplasty and bypass surgery have been compared in numerous studies, but long-term clinical outcomes are limited. Symptomatic patients with multivessel coronary artery disease (n = 1,829) were randomly assigned to initial treatment with PTCA or CABG and followed up for an average of 10.4 years.


There was no significant long-term disadvantage regarding mortality or myocardial infarction associated with an initial strategy of PTCA compared with CABG. Among patients with treated diabetes, CABG conferred long-term survival benefit, whereas the 2 initial strategies were equivalent regarding survival for patients without diabetes.

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Resources Available

Study Datasets Only

Study Documents

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