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Related Experiment Videos

Macroamylasemia

R S Faro, H F Trafton, C H Organ

    Surgery
    |November 1, 1977
    PubMed
    Summary
    This summary is machine-generated.

    Macroamylasemia causes high serum amylase but normal urine amylase due to a large amylase complex. This rare condition was observed in a patient with cholecystitis and partial small bowel obstruction.

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    Area of Science:

    • Biochemistry
    • Clinical Medicine
    • Gastroenterology

    Background:

    • Macroamylasemia is a condition defined by elevated serum amylase levels with normal urinary amylase.
    • The underlying cause is a macromolecular amylase complex that is too large to be filtered by the kidneys.
    • This condition typically lacks specific clinical manifestations.

    Observation:

    • A patient presented with cholecystitis and partial small bowel obstruction.
    • Persistent hyperamylasemia was noted both before and after surgery.
    • Macroamylasemia was confirmed as the cause of the elevated serum amylase.

    Findings:

    • The renal amylase clearance to creatinine clearance (CAM/CCR) ratio was utilized to confirm the hyperamylasemic entity.
    • This ratio helps differentiate macroamylasemia from other causes of hyperamylasemia.

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    Implications:

    • This case highlights that macroamylasemia can coexist with gastrointestinal conditions like cholecystitis and bowel obstruction.
    • Understanding macroamylasemia is crucial for accurate diagnosis and avoiding unnecessary investigations for hyperamylasemia.
    • The CAM/CCR ratio serves as a valuable diagnostic tool for identifying macroamylasemia.