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Ambulatory continuous interscalene nerve blocks decrease the time to discharge readiness after total shoulder

Brian M Ilfeld1, Krista Vandenborne, Pamela W Duncan

  • 1Department of Anesthesiology, University of Florida, Gainsville, Florida, USA. bjilfeld@hotmail.com

Anesthesiology
|October 27, 2006
PubMed
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This summary is machine-generated.

Ambulatory continuous interscalene nerve block (CISB) significantly speeds up recovery after shoulder arthroplasty. Patients receiving CISB achieved discharge criteria faster, enabling earlier, opioid-sparing recovery.

Area of Science:

  • Anesthesiology and Pain Management
  • Orthopedic Surgery
  • Patient Recovery Protocols

Background:

  • Continuous interscalene nerve block (CISB) is a potential method for post-shoulder arthroplasty pain management.
  • Optimizing CISB may reduce inpatient stays by improving analgesia and shoulder mobilization.
  • This study evaluates ambulatory CISB's impact on achieving discharge criteria post-shoulder arthroplasty.

Purpose of the Study:

  • To investigate the relationship between ambulatory continuous interscalene nerve block (CISB) and the time to meet discharge criteria after shoulder arthroplasty.
  • To assess if CISB facilitates adequate analgesia without intravenous opioids and improves shoulder mobilization.
  • To determine the potential for shortened inpatient stays with ambulatory CISB.

Main Methods:

Related Experiment Videos

  • Patients received a preoperative CISB with a 0.2% ropivacaine infusion.
  • Postoperatively, patients were randomized to either continue ropivacaine or switch to saline.
  • Discharge criteria included adequate analgesia, independence from IV analgesics, and tolerance to 50% of shoulder motion targets.

Main Results:

  • Patients on ropivacaine infusion met discharge criteria in a median of 21 hours, versus 51 hours for saline (P < 0.001).
  • The ropivacaine group experienced less pain and required fewer intravenous opioids.
  • Patients receiving saline often needed morphine and had reduced shoulder mobility.

Conclusions:

  • Ambulatory CISB significantly reduces time to discharge readiness after shoulder arthroplasty.
  • Potent analgesia from CISB allows for greater passive shoulder movement and avoids intravenous opioids.
  • Further research is needed to identify optimal patient subsets and assess complications of early discharge.