PMC4837251_01
(a)-(e) Surgical procedures step by step. (a) Scalp incision with a length of 0.7 cm under local anesthesia. (b) Approximately 20 mL of blood clot was aspirated during surgery. A manual Skull driller is shown. (c) Old blood clot aspirated during surgery. (d) Drainage tube placed within the cavity of a hematoma during surgery, with old blood clot aspirated during surgery. (e) Healed incision on the scalp after surgery.
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Once anesthesia was effective, 0.5-0.8 cm incision was made on the scalp (Figure 1(a)). A manual skull driller was used to drill through the scalp and skull (Figure 1(b)), and hematoma was aspirated as much as possible using a brain puncture needle (Figure 1(c)). A 10 F drainage tube was inserted into the hematoma cavity (Figure 1(d)); then, the tube core was withdrawn and the drainage tube further inserted toward the hematoma for 1 cm.