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Korean J Pain. 2018 Oct;31(4):296-304. English. Case Report.
Marchesini M , Flaviano E , Bellini V , Baciarello M , Bignami EG .
Unit of Pain Therapy, Salvatore Maugeri Foundation, Scientific Institute of Pavia, Pavia, Italy.
Anaesthesia, Intensive Care and Pain Therapy Service, Azienda Ospedaliera Universitaria Parma Hospital, Parma, Italy.
Department of Surgical Sciences, Azienda Ospedaliera Universitaria Parma Hospital, University of Parma, Parma, Italy.

Epiduroscopy is defined as a percutaneous, minimally invasive endoscopic investigation of the epidural space. Periduroscopy is currently used mainly as a diagnostic tool to directly visualize epidural adhesions in patients with failed back surgery syndrome (FBSS), and as a therapeutic action in patients with low back pain by accurately administering drugs, releasing inflammation, washing the epidural space, and mechanically releasing the scars displayed. Considering epiduroscopy a minimally invasive technique should not lead to underestimating its potential complications. The purpose of this review is to summarize and explain the mechanisms of the side effects strictly related to the technique itself, leaving aside complications considered typical for any kind of extradural procedure (e.g. adverse reactions due to the administration of drugs or bleeding) and not fitting the usual concept of epiduroscopy for which the data on its real usefulness are still lacking. The most frequent complications and side effects of epiduroscopy can be summarized as non-persistent post-procedural low back and/or leg discomfort/pain, transient neurological symptoms (headache, hearing impairment, paresthesia), dural puncture with or without post dural puncture headache (PDPH), post-procedural visual impairment with retinal hemorrhage, encephalopathy resulting in rhabdomyolysis due to a dural tear, intradural cyst, as well as neurogenic bladder and seizures. We also report for first time, to our knowledge, a case of symptomatic pneumocephalus after epiduroscopy, and try to explain the reason for this event and the precautions to avoid this complication.

Copyright © 2019. Korean Association of Medical Journal Editors.