Occipital Nerve Blockade for the Treatment of Occipital Neuralgia-Like Acute Postcraniotomy Headache: A Retrospective Study

Table 2

Baseline demographics and perioperative data (n = 41).

Characteristics	Values
Age (years)	49.6 ± 15.2
Gender
Female	22 (53.7%)
Male	19 (46.3%)
Preoperative anxiety and/or depression	4 (9.8%)
Preoperative headache
Tension-type headache	3 (7.3%)
Migraine	2 (4.9%)
Preoperative regional management
Scalp nerve blockade	17 (41.5%)
Scalp infiltration	19 (46.3%)
N/A	5 (12.2%)
Side of surgical incision
Left	21 (51.2%)
Right	20 (48.8%)
Etiology for surgery
Tumor resection	18 (43.9%)
Decompression	13 (29.3%)
Others	10 (22.0%)
Surgical approach
Retrosigmoid	23 (56.1%)
Suboccipital	16 (39.0%)
Others	2 (4.9%)
Operation duration (hours)	6.3 ± 1.1