Retrograde Epidural Catheter Relieves Intractable Sacral Pain

Area of Science:

• Oncology
• Pain Management
• Anesthesiology

Background:

• Sacral tumor infiltration causes significant pain, posing a challenge in palliative care.
• Neuraxial techniques like epidural or spinal anesthesia are options for refractory pain, but carry risks.
• Intrathecal (IT) drug delivery may be limited by motor weakness concerns.

Observation:

• A patient with metastatic breast cancer had inadequate pain control despite IV regimens and IT drug delivery.
• High local anesthetic concentrations via IT catheter were contraindicated due to pre-existing motor weakness.
• A novel approach was needed to achieve pain relief without exacerbating neurological deficits.

Findings:

• A retrograde epidural catheter was successfully inserted to deliver anesthesia.
• This technique provided a "band of anesthesia" for profound sensory blockade.
• The patient experienced successful pain control without increased motor weakness.

Implications:

• Retrograde epidural catheterization is a viable option for refractory sacral pain in cancer patients.
• This technique offers a method to achieve significant analgesia while preserving motor function.
• It expands the armamentarium for managing complex pain syndromes in advanced malignancy.