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Projected complex sensations after interscalene brachial plexus block.

Mattias Casutt1, Georgios Ekatodramis, Konrad Maurer

  • 1Department of Anesthesiology, Orthopedic University Clinic Zurich/Balgrist, Zurich, Switzerland.

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Summary
This summary is machine-generated.

Phantom pain sensations can occur after an interscalene block. Recognizing this complex sensation is crucial to avoid misdiagnosis of other serious conditions.

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Area of Science:

  • Anesthesiology and Pain Management
  • Neurology

Background:

  • Interscalene block is a common regional anesthesia technique for shoulder surgery.
  • Phantom limb pain is a well-documented phenomenon after amputation.

Observation:

  • Patients undergoing interscalene block reported complex sensations mimicking phantom pain.
  • These sensations were projected to the arm and hand, consistent with phantom pain.

Findings:

  • The study reports the development of projected complex sensations resembling phantom pain following interscalene block.
  • This phenomenon highlights the brain's complex processing of sensory information after nerve blockade.

Implications:

  • Recognition of this entity is vital to prevent misdiagnosis.
  • It may be confused with cardiac, esophageal, or visceral pathologies, necessitating careful clinical evaluation.