Table. 2.

Incidence of Adverse Events

Side effect Group C(n = 24) Group R(n = 22) P value
Nausea ≤ 1 hr 1 (4.2) 0 > 0.99
1 hr <–≤ 6 hr 2 (8.3) 0 0.490
6 hr <–≤ 24 hr 3 (12.5) 2 (9.1) > 0.99
24 hr <–≤ 48 hr 4 (16.7) 0 0.110
Vomiting < 48 hr 2 (8.3) 0 0.490
Respiratory depression < 48 hr 0 0
Toxicity of local anesthetics < 48 hr 0 0
Horner’s syndrome < 48 hr 0 0

Data are presented as number (%)

Group C: retrolaminar injection with saline, Group R: retrolaminar block with local anesthetics

Korean J Pain 2020;33:378~385 https://doi.org/10.3344/kjp.2020.33.4.378
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