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Inadvertent Spinal Anesthesia During Ultrasound-Guided Thoracic Paravertebral Nerve Block in a Patient With Nerve Root Sheath Cyst: A Case Report.

08:00 EDT 29th August 2018 | BioPortfolio

Summary of "Inadvertent Spinal Anesthesia During Ultrasound-Guided Thoracic Paravertebral Nerve Block in a Patient With Nerve Root Sheath Cyst: A Case Report."

An ultrasound-guided thoracic paravertebral nerve block was administered for left-sided abdominal pain. Lidocaine 0.4% (9.5 mL) was injected. Spinal anesthesia developed after the injection that resolved after 3 hours. One week later, a magnetic resonance imaging scan of thoracic spine identified a left T10 nerve root sheath cyst. It was postulated that the local anesthetic was injected into the cyst, which communicated with the subarachnoid space. This case report demonstrates the anatomic variations of nerve root sheath cyst sites and the risk of injection into intranerve root sheath cysts during interventional procedures.

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Name: A&A practice
ISSN: 2575-3126
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Medical and Biotech [MESH] Definitions

Nerve fibers which project from the central nervous system to autonomic ganglia. In the sympathetic division most preganglionic fibers originate with neurons in the intermediolateral column of the spinal cord, exit via ventral roots from upper thoracic through lower lumbar segments, and project to the paravertebral ganglia; there they either terminate in synapses or continue through the splanchnic nerves to the prevertebral ganglia. In the parasympathetic division the fibers originate in neurons of the brain stem and sacral spinal cord. In both divisions the principal transmitter is acetylcholine but peptide cotransmitters may also be released.

The collecting of fetal blood samples via ultrasound-guided needle aspiration of the blood in the umbilical vein.

A paravertebral sympathetic ganglion formed by the fusion of the inferior cervical and first thoracic ganglia.

Procedure in which an anesthetic is injected directly into the spinal cord.

The major nerves supplying sympathetic innervation to the abdomen. The greater, lesser, and lowest (or smallest) splanchnic nerves are formed by preganglionic fibers from the spinal cord which pass through the paravertebral ganglia and then to the celiac ganglia and plexuses. The lumbar splanchnic nerves carry fibers which pass through the lumbar paravertebral ganglia to the mesenteric and hypogastric ganglia.

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