The AHA Guidelines and Scientific Statements Handbook

Chapter 7 Coronary Artery Bypass Graft Surgery

CABG better PTCA better

One vessel, no LAD

One vessel, non-proximal LAD

One vessel, proximal LAD

Two vessel, no LAD

Two vessel, non-proximal LAD

Two vessel, proximal LAD

Three vessel, non proximal LAD

Ln (hazard ratio)

Three vessel, proximal LAD

(a)

(b)

–1.4 –1.2–1–0.8–0.6–0.4–0.20 0.2 0.4 0.60.8 1

■ Three vessel,

prox LAD

■ Three vessel,

non-prox LAD

■ Two vessel,

prox LAD

❏ Two vessel,

non-prox LAD

❏ Two vessel,

no LAD

❏ One vessel,

Prox LAD

❏ One vessel,

non-prox LAD

❏ One vessel,

no LAD

–4 –2 0

←PTCA better CABG better →

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Fig. 7.1 A, 95% Confi dence interval for ln (adjusted hazard ratio) of PTCA patient death: CABG patient death within a 3-year period
(excluding patients with myocardial infarction less than 24 hours before the procedure). For the sample size within each anatomic cohort.
B, Differences in adjusted percent survival at 3 years: percent CABG survival minus percent PTCA survival. Solid bars show statistically
signifi cant differences. Prox indicates proximal; LAD, left anterior descending coronary artery; PTCA, percutaneous coronary angioplasty;
CABG, coronary artery bypass graft. Reprinted with permission from Elsevier Science, Inc. (Hannan et al. J Am Coll Cardiol. 1999;33:63–72).