Simpson grade
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The Simpson grade of meningioma resection was described in 1957 and correlated the degree of surgical surgical resection completeness with with symptomatic recurrence1.
Although the type of resection still plays a part in the likelihood of symptomatic recurrence, other factors (such as the MIB MIB-1 index) are also important important, particularly in grades I - III 2.
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grade I
- complete removal including resection of underlying bone and associated dura
- 9% symptomatic
recurrencerecurrence at 10 years
-
grade II
- complete removal and coagulation of dural attachment
- 19% symptomatic
recurrencerecurrence at 10 years
-
grade III
- complete removal w/o resection of dura or coagulation
- 29% symptomatic
recurrencerecurrence at 10 years
-
grade IV
- subtotal resection
- 44% symptomatic
recurrencerecurrence at 10 years
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grade V
- simple decompression with
oror without biopsy - 100% symptomatic
recurrencerecurrence at 10 years (small sample in original paper)
- simple decompression with
-<p>The <strong>Simpson grade</strong> of <a href="/articles/meningioma">meningioma</a> resection was described in 1957 and correlated the degree of surgical resection completeness with with symptomatic recurrence <sup>1</sup>. </p><p>Although the type of resection still plays a part in the likelihood of symptomatic recurrence, other factors (such as the MIB-1 index) are also important, particularly in grades I - III <sup>2</sup>. </p><ul>- +<p>The <strong>Simpson grade</strong> of <a href="/articles/meningioma">meningioma</a> resection was described in 1957 and correlated the degree of surgical resection completeness with symptomatic recurrence <sup>1</sup>. </p><p>Although the type of resection still plays a part in the likelihood of symptomatic recurrence, other factors (such as the MIB-1 index) are also important, particularly in grades I - III <sup>2</sup>. </p><ul>
-<li>9% symptomatic recurrence at 10 years</li>- +<li>9% symptomatic recurrence at 10 years</li>
-<li>19% symptomatic recurrence at 10 years</li>- +<li>19% symptomatic recurrence at 10 years</li>
-<li>29% symptomatic recurrence at 10 years</li>- +<li>29% symptomatic recurrence at 10 years</li>
-<li>44% symptomatic recurrence at 10 years</li>- +<li>44% symptomatic recurrence at 10 years</li>
-<li>simple decompression with or without biopsy</li>-<li>100% symptomatic recurrence at 10 years (small sample in original paper)</li>- +<li>simple decompression with or without biopsy</li>
- +<li>100% symptomatic recurrence at 10 years (small sample in original paper)</li>
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