Splanchnic block at T11 provides a longer relief than celiac plexus block from nonmalignant, chronic abdominal pain.

Objective: Neural blockade at the celiac plexus is less specific compared with splanchnic nerve block. This retrospective study compares duration and potency of celiac versus splanchnic block. Patients &

Methods: Analyzed were data of 16 consecutive patients with visceral abdominal nonmalignant pain treated using both celiac plexus and T11 splanchnic block.

Results: Improvement in pain scores was from 7.24 ± 1.0 to 4.1 ± 2.1 for celiac, and 7.8 ± 0.8 to 2.9 ± 2.1 for splanchnic at 4 weeks. Duration of the splanchnic nerve block was superior, median of 56 days versus only 21 days for celiac plexus block. 

Conclusion: T11 bilateral splanchnic block provided significantly longer relief from chronic nonmalignant abdominal pain, than celiac plexus block (p = 0.001). Reduction in pain severity was more with splanchnic compared with celiac block (p = 0.029).