• Gopinath Niraj and Yehia Kamel.
• University Hospitals of Leicester NHS Trust, Leicester, UK.
• Pain Med. 2020 Jan 1; 21 (1): 118-124.

BackgroundChronic pancreatitis is a common cause of recurrent chronic abdominal pain that utilizes significant health care resources. Pain in chronic pancreatitis can be of two types. Visceral pain occurs during ongoing pancreatic inflammation. Once pancreatic inflammation subsides, the pain generator can move to the abdominal wall as a result of viscerosomatic convergence and present as abdominal myofascial pain syndrome. Subcostal transversus abdominis plane block is an abdominal plane block that has been proven effective in upper abdominal pain of somatic origin.DesignThe authors discuss the two distinct types of chronic abdominal pain as a result of pancreatitis and present a prospective audit of a management pathway.MethodsOver a three-year period, 54 patients with chronic abdominal pain as a result of pancreatitis were prospectively audited at a tertiary care university hospital. Patients were offered bilateral subcostal transversus abdominis plane block with depot steroids as the primary interventional treatment in the pathway.ResultsIn patients with myofascial pain secondary to chronic pancreatitis, the block was effective in producing clinically significant pain relief at three months (95%, 20/21) and durable pain relief lasting six months (62%, 13/21). In patients with visceral pain, the block produced a transient benefit lasting two to three weeks in one-third (six of 17).ConclusionsSubcostal transversus abdominis plane block may be an option in the management of abdominal myofascial pain syndrome secondary to chronic pancreatitis. The block is ineffective in producing clinically significant pain relief in the presence of ongoing pancreatic inflammation.© 2019 American Academy of Pain Medicine. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

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