Use of regional scalp block for pain management after craniotomy: Review of literature and critical appraisal of evidence

The evidences are very limited, most data are confounded by weaknesses in methodology and most of the studies have small sample sizes. Large trials on safety and efficacy of analgesia post craniotomy using standardized and widely accepted tools are yet to be performed. None of the studies identified studied post craniotomy analgesia in patients with neurocognitive change. From level 1 evidence, regional scalp block post craniotomy provides effective form of analgesia.