AAST spleen injury scale
Updates to Article Attributes
Body
was changed:
The 1994 revision of American Association for the Surgery of Trauma (AAST) splenic injury scale is the most widely used grading system for splenic trauma at the time of writing (mid 2016).
Classification
-
grade I
- subcapsular haematoma <10% of surface area
- capsular laceration <1 cm depth
-
grade II
- subcapsular haematoma 10-50% of surface area
- intraparenchymal haematoma <5 cm in diameter
- laceration 1-3 cm depth not involving trabecular vessels
-
grade III
- subcapsular haematoma >50% of surface area or expanding
- intraparenchymal haematoma >5 cm or expanding
- laceration >3 cm depth or involving trabecular vessels
- ruptured subcapsular or parenchymal haematoma
-
grade IV
- laceration involving segmental or hilar vessels with major devascularisation (>25% of spleen)
-
grade V
- shattered spleen
- hilar vascular injury with
devascularised spleensplenic devascularisation
NB: advance one grade for multiple injuries up to grade III
See also
-<li>hilar vascular injury with devascularised spleen</li>- +<li>hilar vascular injury with splenic devascularisation</li>
-</ul><p>NB: advance one grade for multiple injuries up to grade III</p><h4>See also</h4><ul>- +</ul><h4>See also</h4><ul>
Systems changed:
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