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Related Concept Videos

Local Anesthetics: Clinical Application as Epidural Anesthesia01:29

Local Anesthetics: Clinical Application as Epidural Anesthesia

427
Epidural anesthetics are administered in the fat-filled epidural space, the outermost part of the spinal canal. This technique is commonly employed for pain management and anesthesia during lower abdomen and pelvis surgeries or labor and delivery.
Since epidural anesthetics can be infused through an epidural catheter, all types of drugs, including short-acting ones, can be administered. Chloroprocaine and lidocaine are examples of short and long-duration anesthetics, respectively. Bupivacaine...
427

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Updated: Jun 17, 2025

Laminotomy for Lumbar Dorsal Root Ganglion Access and Injection in Swine
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CT-Guided Epidural Contrast Injection for the Identification of Dural Defects.

Ian T Mark1, Michael Oien2, John C Benson2

  • 1From the Department of Radiology (I.T.M., M.O., J.B., J.V., B.J.-T., D.K.K., A.A.M), Mayo Clinic, Rochester, Minnesota Mark.Ian@mayo.edu.

AJNR. American Journal of Neuroradiology
|August 12, 2024
PubMed
Summary
This summary is machine-generated.

Persistent dural defects causing headaches can now be visualized. A new CT-guided contrast injection technique shows promise for diagnosing these challenging cases of post-dural puncture headache.

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Area of Science:

  • Neurology
  • Radiology
  • Medical Imaging

Background:

  • Post-dural puncture headache is a recognized cause of chronic headaches.
  • Diagnosing persistent dural defects is challenging, lacking reliable tests beyond clinical history or myelography.
  • Myelography itself can cause further dural puncture.

Purpose of the Study:

  • To evaluate a novel technique for visualizing persistent dural defects.
  • To assess the potential of CT-guided contrast injection in diagnosing dural defects.

Main Methods:

  • The study involved 5 patients with suspected persistent dural defects.
  • Iodinated contrast was injected into the dorsal epidural space.
  • Computed tomography (CT) guidance was used for contrast injection and visualization.

Main Results:

  • The CT-guided contrast injection successfully visualized persistent dural defects in the studied patients.
  • This technique offers a potential imaging tool for diagnosing dural defects.

Conclusions:

  • CT-guided epidural contrast injection is a potential diagnostic tool for persistent dural defects.
  • This method may aid in the evaluation of chronic headaches related to dural issues.