Marc Cohen, MD: From Newark Beth Israel Medical Center, Newark, New Jersey.

Ruptured or vulnerable plaques exist not only at the culprit lesion but also in the whole coronary artery in some acute coronary syndrome (ACS) patients.Goldstein et al found features of instability of nonculprit plaques in nearly 40% of patients by angiography,1 whereas actual rupture in a remote site other than the angiographic culprit lesion was found in approximately 13% to 79% of cases when evaluated by intravascular ultrasound.