Article Text

Download PDFPDF
A Case Report of Reappearance of Spinal Anesthesia
  1. Alexander M. DeLeon, M.D.,
  2. Honorio T. Benzon, M.D.,
  3. Theodore S. Eisenman, M.D.,
  4. Robert A. Doty, M.D.,
  5. Benjamin Newell, M.D. and
  6. Kathleen McLaughlin, C.R.N.A.
  1. Department of Anesthesiology, Northwestern University Feinberg School of Medicine, Chicago, IL.


Objective: We present a case of reappearance of spinal anesthesia despite the use of plain (isobaric) lidocaine and without an associated cough or Valsalva maneuver.

Case Report: A 66-year-old man had spinal anesthesia for knee arthroscopy. Two hours after the induction of spinal anesthesia and after the patient's motor strength had returned to the lower extremities, his head was elevated to 30 degrees. His legs became weak and he became hypotensive. Within 1 hour, his strength returned and he was discharged uneventfully.

Conclusions: The reappearance of spinal anesthesia may be secondary to remixing of the cerebrospinal fluid with the pooled local anesthetic or transfer of the local anesthetic from the subdural to the subarachnoid space with movement of the patient.

  • Spinal anesthesia
  • Reappearance
  • Subdural injection

Statistics from

Request Permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.


  • Reprint requests: Alexander M. DeLeon, M.D., Northwestern University Feinberg School of Medicine, 251 East Huron, Suite F5-704, Chicago, IL 60611. E-mail: alexdeleon74{at}