What is the clinical evidence from this study?

Study design: Observational. Population: Coronary artery disease requiring CABG (n=4684). Intervention: Coronary Artery Bypass Graft Surgery. Primary outcome: Appropriateness of procedure (Class I or II) based on 2004 ACC/AHA guidelines.

What question did this study set out to answer?

This study aims to assess the concordance between ACC/AHA guidelines for CABG surgery and actual clinical practices.

June 25, 2026Journal of the American College of Cardiology

Appropriateness of Coronary Artery Bypass Graft Surgery Performed in Northern New England

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Key result

CABG meets ACC/AHA appropriateness guidelines in ~99% of northern New England cases.

n=4,684

Why the study?

Is coronary artery bypass graft surgery performed appropriately according to ACC/AHA guidelines in northern New England?

Key Points

This study aims to assess the concordance between ACC/AHA guidelines for CABG surgery and actual clinical practices.
Evaluated 4,684 consecutive CABG procedures performed in 2004 and 2005 in Northern New England.
Utilized regional registry data to categorize patients into clinical subgroups and assess appropriateness of procedures according to ACC/AHA classifications.
Classified procedures as class I, IIa, IIb, or III based on detailed clinical criteria.
99.6% of procedures (n=4,665) were classified according to appropriateness criteria.
Majority classified as class I (87.7%); class II procedures totaled 10.9%, and class III procedures were 1.4%.
98.6% of classified CABG procedures were deemed appropriate, indicating strong adherence to the 2004 guidelines.

Study Design

Type

Observational (n=4,684)

Multicenter

Yes

Structured PICO

Is coronary artery bypass graft surgery performed appropriately according to ACC/AHA guidelines in northern New England?

Population

4,684 consecutive isolated coronary artery bypass graft procedures performed in 2004 and 2005 in northern New England to assess guideline concordance.

Exposure

Coronary artery bypass graft (CABG) surgery

Outcome

Concordance between the American College of Cardiology (ACC) and the American Heart Association (AHA) 2004 Guideline Update for Coronary Artery Bypass Graft Surgery and actual clinical practice (appropriateness classification)

Discussion

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Implication

In a regional registry, 98.6% of CABG procedures were deemed appropriate according to ACC/AHA guidelines, indicating high concordance with clinical recommendations and challenging concerns about widespread unnecessary cardiac surgery.

Cite This Study

O’Connor et al. (2008) conducted an observational in Coronary artery disease requiring CABG (n=4,684). Coronary Artery Bypass Graft Surgery was evaluated on Appropriateness of procedure (Class I or II) based on 2004 ACC/AHA guidelines. Coronary artery bypass graft surgery performed in northern New England was considered appropriate in 98.6% of classified cases according to the 2004 ACC/AHA guidelines.

synapsesocial.com/papers/6a3cf28bb20054bd7fc0be06 https://doi.org/10.1016/j.jacc.2008.01.067

View Full Paper

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Appropriateness of Coronary Artery Bypass Graft Surgery Performed in Northern New England

Key Points

Study Design

Structured PICO

Discussion

Implication

Cite This Study

Appropriateness of Coronary Artery Bypass Graft Surgery Performed in Northern New England

Key Points

Study Design

Structured PICO

Discussion

Implication

Cite This Study

Also Consider

Also Consider