Кое-что из NCDR® CathPCI Registry® v4.4. Интересно, что дефиниции в этом регистре 2011 года. Однако по-прежнему рекомендуется использовать давно известную классификацию типов поражений.
Lesion Complexity
Non-High/Non-C Lesion - Non-high/non-C lesions are considered Type A or B lesions. They can be
characterized as follows:
Low Risk or Type A lesions:
Descrete (<10 mm length)
Concentric
Readily accessible
Non-angulated segment <45 degrees
Smooth contour
Little or no calcification
Less than totally occlusive
Not ostial in location
No major branch involvement
Absence of thrombus
Medium Risk (Type B1) lesions:
Tubular (10-20 mm length)
Eccentric
Moderate tortuosity of proximal segment
Moderatly angulated segment, 45-90 degrees
Irregular contour
Moderate to heavy calcification
Ostial in location
Bifurcation lesions requiring double guidewires
Some thrombus present
Total occlusion <3 months old
Medium Risk (Type B2 lesions): Two or more "B" characteristics
High/C Lesion - Descriptions of a High Lesion Risk (C Lesion):
Diffuse (length > 2cm)
Excessive tortuosity of proximal segment
Extremely angulated segments > 90 degrees
Total occlusions > 3 months old and/or bridging
collaterals
Inability to protect major side branches
Degenerated vein grafts with friable lesions
|