Hepatic Plexus Nerve Block for Microwave Ablation of Hepatic Tumors

AJR Am J Roentgenol. 2022 Apr;218(4):699-700. doi: 10.2214/AJR.21.26779. Epub 2021 Oct 27.

Abstract

Seven patients underwent microwave ablation of hepatic tumors; during ablation, a hepatic nerve plexus block was used for pain control. The mean visual analog scale (VAS) score for pain (scale, 0-10) was 0.3 ± 0.5 (SD) at baseline and 2.5 ± 1.4, 2.6 ± 1.4, and 2.3 ± 0.9 at 1, 5, and 10 minutes during ablation. Two patients reported a VAS score of 4 or greater during ablation, which improved in both patients to a VAS score of 3 after one rescue sedation dose. The remaining patients required no additional sedation. No major complication occurred. No patient required conversion to general anesthesia.

MeSH terms

  • Humans
  • Liver Neoplasms* / complications
  • Liver Neoplasms* / diagnostic imaging
  • Liver Neoplasms* / surgery
  • Microwaves / therapeutic use
  • Nerve Block*
  • Pain / etiology
  • Pain Measurement / adverse effects