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Immunoreactive trypsin in acute pancreatitis: elevated levels do not correlate with hyperamylasaemia
G J Poston1, A S Adamson, A F Heeley
1Royal Postgraduate Medical School, London.
Annals of the Royal College of Surgeons of England
|September 1, 1987
Summary
Serum immunoreactive trypsin (IRT) and amylase levels were evaluated in acute pancreatitis (AP) patients. While IRT is not superior to amylase alone for diagnosis, combining both markers may enhance accuracy, with persistently high IRT indicating poor prognosis.
Area of Science:
- Gastroenterology
- Clinical Chemistry
- Biomarker Research
Background:
- Acute pancreatitis (AP) diagnosis relies on clinical and biochemical markers.
- Serum amylase is a commonly used but non-specific marker for AP.
- The role of serum immunoreactive trypsin (IRT) in AP diagnosis and prognosis requires further investigation.
Purpose of the Study:
- To compare serum immunoreactive trypsin (IRT) levels with serum amylase in patients with acute pancreatitis (AP).
- To assess the diagnostic utility and prognostic value of IRT in AP.
- To investigate the combined diagnostic accuracy of IRT and amylase in AP.
Main Methods:
- Serum samples from AP patients and healthy controls were analyzed for IRT and amylase levels.
- Correlation between IRT and amylase elevations was assessed.
- IRT and amylase levels were monitored during patient recovery.
Main Results:
- Both IRT and amylase were significantly elevated in AP patients compared to controls.
- Minimal correlation was observed between IRT and amylase levels.
- IRT and amylase normalized at similar rates in recovering patients.
- Persistently elevated IRT was associated with pancreatic pseudocyst and mortality.
Conclusions:
- Serum IRT is not a superior standalone diagnostic marker for AP compared to amylase.
- Combining IRT and amylase measurements may improve diagnostic accuracy in AP.
- Sustained elevation of serum IRT may serve as an important prognostic indicator in AP.