Chapter 66

Diagnosis and Management of Pancreatic Exocrine Insufficiency in Pancreatic Cancer

Sarah Powell-Brett

Sarah Powell-Brett

Queen Elizabeth Hospital, Birmingham, UK

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Keith J. Roberts

Keith J. Roberts

Queen Elizabeth Hospital, Birmingham, UK

University of Birmingham, Birmingham, UK

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First published: 16 April 2021

Summary

Pancreatic exocrine insufficiency (PEI) is a significant contributor to weight loss and malnutrition in pancreatic cancer, with over 80% of those with pancreatic cancer having lost weight by the time of diagnosis and over one-third having lost more than 10% of their body weight. For recognizable symptoms to occur in patients with PEI, the ingested food must overwhelm the enzymatic capacity of exocrine pancreatic secretion. An effective mechanism for diagnosing and quantifying PEI in pancreatic cancer is essential to assess the need for, correct dosage of, and efficacy of pancreatic enzyme replacement therapy (PERT) in order to prevent malabsorption/malnutrition and the associated complications and enable patients to undergo chemotherapy and/or surgery if appropriate. The treatment of PEI revolves around the exogenous replacement of the required enzymes with administration of PERT.

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