The Celiac Plexus is made up of 1-5 ganglia carrying afferent fibers from the upper abdominal organs (stomach to mid transverse colon, including pancrease and gallbladder) as well as sympathetic preganglionic fibers from greater (T5-T10), lesser (T10-T11), and least (T12) splanchnic nerves. The plexus is located in the upper abdomen typically at the level of the L1 vertebral body anterolateral to the aorta but can be anywhere from the level of T12-L1 disc space to the level of the L2 vertebral body. The afferent fibers can carry visceral nociceptive signals from the distal stomach, pancrease, gallbladder, other hepatobiliary structures, duodenum, small intestine, and large intestine up to the mid-transverse colon (visceral pain). The plexus does not carry somatic nerve fibers from the upper abdominal wall.
Celiac Plexus Block: Distribution
- From distal stomach to mid-transverse colon, including pancreas and gallbladder (Visceral)
- Usually located at the level of the L1 vertebral body
- Sympathetic preganglionic fibers from T5-T12
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