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Utility of the Pectoral Nerve Block (PECS II) for Analgesia Following Transaxillary First Rib Section.

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A pectoral nerve (PECS II) block did not significantly reduce pain or opioid use after transaxillary first rib resection. Further randomized studies are needed to confirm these findings for thoracic outlet syndrome patients.

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Area of Science:

  • Pain Management
  • Regional Anesthesia
  • Thoracic Surgery

Background:

  • Transaxillary first rib resection for thoracic outlet syndrome often results in significant postoperative pain.
  • Opioid analgesia is common but associated with adverse effects, necessitating alternative pain management strategies.
  • The pectoral nerve (PECS II) block is a regional anesthetic technique targeting nerves supplying the chest wall.

Purpose of the Study:

  • To evaluate the efficacy of the pectoral nerve (PECS II) block in reducing postoperative pain and opioid consumption following transaxillary first rib resection.
  • To compare pain scores and opioid use in patients who received a PECS II block versus those who did not.

Main Methods:

  • Retrospective chart review of patients undergoing transaxillary first rib resection for thoracic outlet syndrome.
  • Comparison of numeric rating scale pain scores and cumulative opioid consumption within the first 24 hours postoperatively.
  • Patients were divided into two groups: those who received a PECS II block and those who did not.

Main Results:

  • No statistically significant difference in pain scores was observed between the PECS II block group (median 3.9) and the non-block group (median 3.6) within the first 24 hours (P=0.40).
  • Cumulative opioid consumption was also not significantly different between the two groups (Block Group: 43.5 mg MME vs. Non-block Group: 42.0 mg MME; P=0.53).

Conclusions:

  • Ultrasound-guided PECS II block did not effectively reduce postoperative pain or opioid requirements in patients undergoing transaxillary first rib resection.
  • A prospective, randomized study with greater statistical power is recommended to further investigate the utility of PECS II blocks for this surgical indication.