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Summary of 203 meningioma patients who underwent preoperative embolization
Group 1Group 2
(N = 75)(N = 128)
Interval between embolization and surgery (mean)1–7 days (2.1 days)8–26 days (9.9 days)
Total blood loss (mL)897987NS
During removal of tumor (mL)534424NS
Blood transfusion (U)1.0–9.01.0–6.0
Mean (U)2.92.1NS
Tumor consistency at surgery
Hard5031}P < .01
Moderately hard2075
Soft522
Simpson grade2.601.91P < .01
  • Note:— NS indicates not significant