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Related Experiment Videos

Neurologic complication after anterior sciatic nerve block.

Shruti Shah1, Admir Hadzic, Jerry D Vloka

  • 1Department of Anesthesiology, St. Luke's-Roosevelt Hospital Center, College of Physicians and Surgeons of Columbia University, New York.

Anesthesia and Analgesia
|April 23, 2005
PubMed
Summary
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Peripheral nerve blocks (PNBs) may have unreported complications. Intraneural injection during sciatic nerve blocks can cause permanent nerve injury, even without pain, but may show high injection pressure.

Area of Science:

  • Anesthesiology
  • Neurology
  • Surgical Complications

Background:

  • Peripheral nerve blocks (PNBs) are frequently used for lower extremity surgeries.
  • Reported complications of PNBs are infrequent, potentially due to underreporting and lack of standardized monitoring.
  • Understanding neurologic complications after PNBs is limited by the absence of objective documentation procedures.

Observation:

  • A case of permanent sciatic nerve injury following an anterior approach sciatic nerve block is presented.
  • The injury occurred despite the absence of reported pain during the injection procedure.
  • High injection pressure, indicating resistance, may be an early sign of intraneural injection and potential nerve damage.

Findings:

  • Intraneural injection is a significant risk factor for nerve injury during PNBs.

Related Experiment Videos

  • Nerve injury can occur without the typical warning sign of pain on injection.
  • High injection pressure is a critical indicator that warrants immediate attention and potential cessation of the procedure.

    • Implications:

    • Highlights the potential for severe, permanent neurologic injury from PNBs.
    • Emphasizes the need for improved monitoring and documentation standards in PNB procedures.
    • Suggests that anesthesiologists should be vigilant for high injection pressures as a sign of intraneural injection to prevent nerve injury.