Background: Pain is a major problem for patients suffering from chronic pancreatitis. Unfortunately, medical therapy often fails to adequately control pain. Coeliac plexus block (CPB) is sometimes performed to treat intractable pain in patients with chronic pancreatitis. Aims: Our primary objective was to determine the effect of CPB for pain management in a cohort of patients with chronic pancreatitis. We also sought to quantify opioid use in patients with chronic pancreatitis. Methods: We reviewed the database of pain referrals for chronic pancreatitis and recorded opioid use for each patient. We interviewed all patients who underwent CPB for chronic pancreatitis at TUH from January 2018-December 2020. Effect of the block, duration of pain relief, analgesia requirements, complications and patient satisfaction were recorded. Results: 62 inpatient referrals were made to the pain service over a 3-year period regarding pain management in chronic pancreatitis. 76% of patients referred for chronic pancreatitis pain management require regular long-term opioids. Mean daily oxycodone requirement in this group was 52 mg. 11 of these patients underwent CPB over a 3-year period. Mean age of patients who underwent CPB was 44 years. Effective reduction in pain scores (>50% improvement) was achieved in 7 of 11 patients. The mean NRS pain score decreased from 9.2 (±0.9) to 4.4 (±3.1). Mean duration of pain relief experienced was 69 days. Transient diarrhoea was reported by 1 patient. 4 patients reported a temporary decrease in oral analgesia requirement, while 3 patients reported a sustained decrease in analgesia requirement post CPB. For those who had further CPBs, the effect of repeated interventions was comparable to the initial procedure. Conclusion: High regular opioid consumption is common in patients with chronic pancreatitis. CPB can provide significant improvement in pain control and quality of life in appropriately selected patients. CPB can assist with opioid reduction and containment. It is not effective in all cases and there is high inter-patient variability. The procedure has a good safety profile.
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