• Haidy Salah Mansour, Ahmed Hassanein Mohmed, Taha Ibrahim Sayed, and Ali Taha Abd-Elwahab.
• Departments of Anesthesia, Intensive Care Unit and Pain Management, Minia University Hospital, Minia, Egypt.
• Pain Physician. 2024 Jan 1; 27 (1): E37E44E37-E44.

BackgroundSplanchnic nerve neurolysis (SNN) shows beneficial effects in reducing malignancy-associated refractory abdominal pain. Using adjuvants, such as dexmedetomidine to improve the pain was studied.ObjectiveTo detect any role of dexmedetomidine as an additive to local anesthetics with an alcohol injection in the chemical SNN process to improve pain in patients having upper-abdominal cancer.Study DesignDouble-blinded, prospective randomized study.SettingDepartment of Anesthesia and Intensive Care, faculty of medicine, Minia University,Egypt.MethodsForty patients with upper-abdominal malignancy-associated refractory abdominal pain underwent fluoroscopic guided SNN were divided into 2 groups. The SNN was performed by using 1.5 mL lidocaine 1%, dexmedetomidine 2 μg/kg, and then an injection of 4.5 mL of ethanol 96% on each side in group D and without dexmedetomidine in group C is done. Patients gave the score of abdominal pain expressed by the Visual Analog Scale (VAS), which measures the pain intensity. Scors were recorded prior to injection, during injection, after injection by 5 min, and after 2, 6, 12, 24, 72 hours, one week (W), 2 W, one month (M), and 2 M. Also, we recorded the amount of morphine required to relieve the residual pain after injection, the effect of procedure on quality of life (QOL), and any complication after injection.ResultsVAS scores showed a significant increase in group C in comparison to group D during injection, after injection by 5 min, 2, 6, 12, 24 hours, one and 2 months (P < 0.0001, 0.0001, 0.029, 0.031, 0.025, 0.040, 0.020, 0.015), respectively. The morphine requirement was significantly increased at one W, one M, and 2 M in group C in comparison to Group D (P < 0.044, 0.017, 0.033) with no significant change in the QOL observed between groups.LimitationsThe limitations of this study were a relatively small sample size and short period of follow-up.ConclusionsThis study revealed that using dexmedetomidine in the chemical SNN process improves the pain results from injection of alcohol and refractory cancer related pain with reduction in the consumption of morphine in patients with upper-abdominal malignancy.

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