Comparative study of secretin and Lundh tests

Area of Science:

• Gastroenterology and Digestive Diseases
• Pancreatic Physiology

Background:

• Exocrine pancreatic insufficiency affects nutrient absorption and overall health.
• Accurate diagnostic tools are crucial for managing pancreatic diseases.

Purpose of the Study:

• To compare the diagnostic reliability of the secretin stimulation test and the Lundh test for assessing exocrine pancreatic function.
• To determine the most effective test for diagnosing pancreatic diseases, including acute and chronic pancreatitis.

Main Methods:

• Secretin stimulation tests and Lundh tests were performed on 19 patients with pancreatic disease and 16 controls on two separate occasions.
• Peak bicarbonate concentration and enzyme levels were measured in response to stimulation.

Main Results:

• Peak bicarbonate concentration in the Lundh test was the most reliable parameter.
• The secretin test showed slightly higher sensitivity for mild and acute pancreatic damage.
• Both tests agreed in most chronic pancreatitis cases, but discrepancies were noted in acute pancreatitis, reflecting disease variability.

Conclusions:

• Both the Lundh test and secretin stimulation test are valuable for assessing chronic pancreatic disease.
• The Lundh test is more economical and easier to perform, while the secretin test may offer slightly greater sensitivity for acute pancreatic damage.