AAST kidney injury scale
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Renal trauma grading is often done using the American Association for the Surgery of Trauma (AAST) 3-4 according to depth of damage and involvement of the urinary collecting system and renal vessels:
- grade I: contusion or non enlarging subcapsular haematoma, but no laceration
- grade II: superfical laceration <1cm depth and does not involve the collecting system; non expanding perirenal haematoma
- grade III: laceration >1cm, without extension into the renal pelvis or collecting system and with no evidence of urine extravasation
-
grade IV
- laceration extends to renal pelvis or urinary extra-vasation
- vascular: injury to main renal artery or vein with contained haemorrhage
-
grade V
- shattered kidney
- avulsion of renal hilum: devascularisation of kidney due to hilar injury
See also
-<p><strong>Renal trauma grading</strong> is often done using the American Association for the Surgery of Trauma (AAST) <sup>3-4</sup> according to depth of damage and involvement of the urinary collecting system and renal vessels:</p><ul>-<li>-<strong>grade I:</strong> contusion or non enlarging subcapsular haematoma, but no laceration</li>-<li>-<strong>grade II:</strong> superfical laceration <1cm depth and does not involve the collecting system; non expanding perirenal haematoma</li>-<li>-<strong>grade III:</strong> laceration >1cm, without extension into the renal pelvis or collecting system and with no evidence of urine extravasation</li>-<li>-<strong>grade IV</strong><ul>-<li>laceration extends to renal pelvis or urinary extra-vasation</li>-<li>vascular: injury to main renal artery or vein with contained haemorrhage</li>-</ul>-</li>-<li>-<strong>grade V</strong> <ul>-<li><a href="/articles/shattered-kidney">shattered kidney</a></li>-<li>avulsion of renal hilum: <a href="/articles/renal-vascular-pedicle-injury-2">devascularisation of kidney due to hilar injury</a>-</li>-</ul>-</li>-</ul><h4>See also</h4><ul>-<li><a href="/articles/liver-trauma-injury-grading">liver injury grading</a></li>-<li><a href="/articles/splenic-injury-grading">splenic injury grading</a></li>- +<p><strong>Renal trauma grading</strong> is often done using the American Association for the Surgery of Trauma (AAST) <sup>3-4</sup> according to depth of damage and involvement of the urinary collecting system and renal vessels:</p><ul>
- +<li>
- +<strong>grade I:</strong> contusion or non enlarging subcapsular haematoma, but no laceration</li>
- +<li>
- +<strong>grade II:</strong> superfical laceration <1cm depth and does not involve the collecting system; non expanding perirenal haematoma</li>
- +<li>
- +<strong>grade III:</strong> laceration >1cm, without extension into the renal pelvis or collecting system and with no evidence of urine extravasation</li>
- +<li>
- +<strong>grade IV</strong><ul>
- +<li>laceration extends to renal pelvis or urinary extra-vasation</li>
- +<li>vascular: injury to main renal artery or vein with contained haemorrhage</li>
- +</ul>
- +</li>
- +<li>
- +<strong>grade V</strong> <ul>
- +<li><a href="/articles/shattered-kidney">shattered kidney</a></li>
- +<li>avulsion of renal hilum: <a href="/articles/renal-vascular-pedicle-injury-2">devascularisation of kidney due to hilar injury</a>
- +</li>
- +</ul>
- +</li>
- +</ul><h4>See also</h4><ul>
- +<li><a href="/articles/liver-trauma-injury-grading">liver injury grading</a></li>
- +<li><a href="/articles/splenic-injury-grading">splenic injury grading</a></li>
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Case 9: Gradegrade V - shattered kidney
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