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Computed tomography after percutaneous renal stone extraction.

K Geterud, C Henriksson, S Pettersson

    Acta Radiologica (Stockholm, Sweden : 1987)
    |January 1, 1987
    PubMed
    Summary
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    Computed tomography (CT) after percutaneous kidney stone extraction revealed minimal changes in most patients. CT is a safe and effective method for detecting residual stones post-procedure.

    Area of Science:

    • Nephrology
    • Urology
    • Radiology

    Background:

    • Percutaneous stone extraction is a common procedure for kidney stones.
    • Post-operative monitoring is essential to assess outcomes and detect complications.

    Purpose of the Study:

    • To evaluate the utility of computed tomography (CT) in assessing morphologic changes and detecting residual stones after percutaneous kidney stone extraction.
    • To compare the efficacy of CT with conventional radiographs in identifying residual stones.

    Main Methods:

    • Eighty patients underwent CT of the kidney and retroperitoneal space post-percutaneous stone extraction, typically within one week.
    • Morphologic changes and the presence of residual stones were assessed.
    • CT findings were compared with conventional radiographs in 66 patients.

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    Main Results:

    • Most patients showed minor or no morphologic changes on CT.
    • Seven patients had minor renal or perirenal fluid collections, often associated with operative complications like bleeding or leakage.
    • CT detected residual stones more frequently than conventional radiographs, with most residual stones being small.

    Conclusions:

    • Computed tomography is a safe and efficient imaging modality for evaluating patients after percutaneous kidney stone extraction.
    • CT is superior to conventional radiographs in detecting small residual stones.
    • The procedure is generally safe, with minor complications like fluid collections being infrequent.