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Fatigue and cardiorespiratory function following abdominal surgery

T Christensen, T Bendix, H Kehlet

    The British Journal of Surgery
    |July 1, 1982
    PubMed
    Summary
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    Post-surgery fatigue is common after abdominal surgery, persisting for weeks in many patients. This study highlights a significant increase in fatigue and its correlation with physiological stress responses.

    Area of Science:

    • Surgical Recovery
    • Physiology
    • Patient-Reported Outcomes

    Background:

    • Postoperative fatigue is a common yet often underestimated complication following surgical procedures.
    • Understanding the trajectory and physiological underpinnings of fatigue is crucial for patient recovery.
    • Elective abdominal surgery represents a significant physiological stressor for patients.

    Purpose of the Study:

    • To assess subjective fatigue levels and physiological responses in patients after uncomplicated elective abdominal surgery.
    • To investigate the correlation between subjective fatigue and objective physiological measurements.
    • To evaluate the duration and persistence of postoperative fatigue.

    Main Methods:

    • Utilized a constructed fatigue scale model to measure subjective fatigue preoperatively and at 10, 20, and 30 days post-surgery.

    Related Experiment Videos

  • Administered orthostatic stress tests to assess physiological responses at the same time points.
  • Conducted bicycle ergometer tests measuring heart rate and oxygen consumption in a subset of patients.

    • Main Results:

    • Subjective fatigue significantly increased post-surgery (P < 0.01) and did not return to baseline in most patients within 30 days.
    • Increased fatigue positively correlated with elevated pulse rate during orthostatic stress (RS = 0.53, P < 0.001).
    • Bicycle ergometer tests showed a slight increase in heart rate (n.s.) and a significant decrease in oxygen consumption (P < 0.01) post-surgery.

    Conclusions:

    • Uncomplicated elective abdominal surgery leads to pronounced and persistent postoperative fatigue, affecting approximately one-third of patients one month after the procedure.
    • The developed fatigue scale model is a viable tool for studying the pathogenesis and treatment of postoperative fatigue.
    • Fatigue following abdominal surgery is linked to physiological stress, indicating a need for targeted management strategies.