Pancreatic elastase

We remind you that independent interpretation of the results is unacceptable, the information provided below is for reference purposes only.

Pancreatic elastase is a digestive enzyme produced by the pancreas that enters the intestine and is excreted in the stool. Measurement of pancreatic elastase concentration in stool is a non-invasive test used to assess the exocrine function of the pancreas.

The concentration of elastase in stool reflects the pancreas's ability to produce and secrete digestive enzymes. Low values may indicate exocrine pancreatic insufficiency, a condition in which the pancreas does not produce or release sufficient amounts of enzymes required for digestion.

The test may be used both for the initial assessment of pancreatic function and for monitoring patients with conditions that may lead to exocrine pancreatic insufficiency.

Indications

• suspected exocrine pancreatic insufficiency;
• chronic pancreatitis;
• cystic fibrosis;
• pancreatic disorders associated with reduced exocrine function;
• chronic or recurrent diarrhea;
• steatorrhea (fatty, difficult-to-flush stools);
• unintentional weight loss;
• persistent bloating and abdominal discomfort;
• suspected maldigestion or malabsorption;
• monitoring of exocrine pancreatic function in patients with known pancreatic disorders;
• assessment of pancreatic function following certain surgical procedures involving the pancreas or gastrointestinal tract, as recommended by a physician.

Procedure

For the test, a stool sample is collected in a special clean, dry container intended for stool examinations.

The sample is analyzed in the laboratory for the quantitative determination of pancreatic elastase.

Fecal pancreatic elastase testing does not require invasive procedures and can be performed using a single stool sample.

Limitations

The result should be interpreted in the context of the patient's symptoms, medical history, and other clinical and laboratory investigations.

Very watery stool samples may result in an apparently low elastase concentration due to dilution and may therefore produce falsely low results. In such cases, the physician may recommend repeating the test using a formed or semi-formed stool sample.

A low result indicates reduced pancreatic exocrine function but does not, by itself, establish its underlying cause. Additional investigations may be required to identify the responsible condition.

The test has lower sensitivity for mild exocrine pancreatic insufficiency compared with moderate or severe forms.

Sources:

https://www.sciencedirect.com/topics/medicine-and-dentistry/pancreatic-elastase
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7734497/
https://en.wikipedia.org/wiki/Pancreatic_elastase
https://www.brenda-enzymes.org/enzyme.php?ecno=3.4.21.36

IMPORTANT!

It is crucial to remember that the information provided in this section is not intended for self-diagnosis or self-treatment. If you experience any symptoms or a flare-up of an existing condition, it is essential to consult a healthcare professional for proper diagnostic tests and treatment. Only a qualified specialist can provide an accurate diagnosis and determine the appropriate course of action. For the most accurate and consistent evaluation of test results, it is recommended to have them performed at the same laboratory, as different laboratories may use varying methods and units of measurement for similar tests.