Clinical Study

Pregnancy-Associated Plasma Protein-A Levels and Coronary Angiographic Features in Acute Coronary Syndrome Patients

Table 1

Angiographic classification of coronary artery lesions by ACC/AHA [8].

Type AType BType C

Discrete
(length < 10 mm)
Tubular
(length 10–20 mm)
Diffuse
(length > 20 mm )

ConcentricEccentric

Readily accessibleModerate tortuosity of proximal segmentExcessive tortuosity of proximal segment.

Nonangulated segment
(<45 degrees)
Moderate angulation
(45–90 degrees)
Extremely angulated
(>90 degrees)

Smooth contourIrregular contour

Little or no calcificationModerate or heavy calcificationDegenerated vein grafts with friable lesions

Absence of thrombosisSome thrombosis presentTotal occlusion

No ostial or major side branch involvement Ostial or bifurcation lesions (requiring double guidewires)Inability to protect major side branch

Less than totally occlusiveTotal occlusions < 3 months oldTotal occlusions > 3 months old/bridging collaterals