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Related Experiment Videos

Liver function tests in patients receiving parenteral nutrition.

P J Clarke1, M J Ball, M G Kettlewell

  • 1Nuffield Department of Surgery, John Radcliffe Hospital, Oxford, United Kingdom.

JPEN. Journal of Parenteral and Enteral Nutrition
|January 1, 1991
PubMed
Summary

This study monitored liver function tests (LFTs) during total parenteral nutrition (TPN), finding gradual increases in liver enzymes. Certain patient groups, including those with malignancy or on long-term TPN, showed higher risks of abnormal LFTs.

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Area of Science:

  • Hepatology
  • Clinical Nutrition
  • Gastroenterology

Background:

  • Total parenteral nutrition (TPN) is a critical intervention for patients unable to receive enteral nutrition.
  • Liver function test (LFT) abnormalities are a potential complication of TPN, necessitating careful monitoring.
  • Understanding risk factors for TPN-induced liver injury is crucial for patient management.

Purpose of the Study:

  • To prospectively monitor liver function tests (LFTs) in patients undergoing total parenteral nutrition (TPN).
  • To identify patient characteristics and clinical factors associated with the development of abnormal LFTs during TPN.

Main Methods:

  • A 5-year prospective observational study.
  • Monitoring of plasma concentrations of bilirubin, aspartate transaminase, and alkaline phosphatase.

Related Experiment Videos

  • Analysis of LFT trends in relation to pre-existing LFT abnormalities, sepsis, underlying disease, duration of TPN, and TPN regimen complexity.

    • Main Results:

    • A gradual, progressive rise in bilirubin, aspartate transaminase, and alkaline phosphatase was observed in patients receiving TPN.
    • Pre-existing LFT abnormalities did not accelerate the rate of LFT rise.
    • Sepsis episodes did not significantly increase the incidence of abnormal LFTs.
    • Malignant disease, long-term TPN requirement, and nonstandard TPN regimens were associated with a higher likelihood of developing elevated LFTs.

    Conclusions:

    • TPN is associated with a progressive increase in specific liver enzymes.
    • Patients with malignancy, those requiring prolonged TPN, or complex TPN regimens are at increased risk for TPN-related liver dysfunction.
    • Routine monitoring of LFTs is essential for patients receiving TPN, particularly in high-risk groups.