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Regional lung function following prosthetic hip replacement surgery.

K Wulff, M Aborelius, B Rosberg

    European Journal of Intensive Care Medicine
    |November 11, 1975
    PubMed
    Summary
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    Hip arthroplasty surgery can impair lung function, particularly in the dependent lung. Respirator-controlled anesthesia showed more significant postoperative lung function reduction than epidural anesthesia.

    Area of Science:

    • Anesthesiology
    • Pulmonary Medicine
    • Orthopedic Surgery

    Background:

    • Prosthetic hip arthroplasty is a common surgical procedure.
    • Positional changes during surgery can affect regional lung function.
    • Anesthesia type may influence postoperative respiratory outcomes.

    Purpose of the Study:

    • To evaluate the impact of hip arthroplasty on regional lung function.
    • To compare lung function changes between respirator-controlled neuroleptic anesthesia and epidural anesthesia with spontaneous breathing.
    • To investigate the timing and extent of lung function alterations post-surgery.

    Main Methods:

    • Utilized Xenon133 radiospirometry to assess regional lung function.
    • Measurements were taken before and at multiple time points (1, 20, 72-96 hours) post-surgery.

    Related Experiment Videos

  • Patients underwent hip arthroplasty in the lateral decubitus position under two different anesthesia regimens.

    • Main Results:

    • A significant reduction in perfusion, ventilation, and ventilated alveolar volume was observed in the dependent lung post-surgery.
    • These reductions were most pronounced immediately after surgery, especially in the respirator-controlled anesthesia group.
    • The respirator-controlled group also exhibited increased pulmonary blood volume and decreased total lung volume.

    Conclusions:

    • Hip arthroplasty, particularly with respirator-controlled anesthesia, leads to significant, albeit often transient, regional lung dysfunction.
    • Congestive atelectasis in the dependent lung, likely due to impaired ventilation, is a probable cause of these changes.
    • Intraoperative microembolism may exacerbate postoperative lung function impairment.