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    Licurse Score for Renal Ultrasound

    Predicts probability of hydronephrosis on renal ultrasonography (RUS) requiring urologic intervention in adult patients with acute kidney injury.
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    Formula

    Addition of the selected points:

    Variable

    Points

    History of hydronephrosis*

    Yes

    High-risk group

    No

    -

    Race

    Non-black

    1

    Black

    0

    History of recurrent urinary tract infections

    Yes

    1

    No

    0

    Diagnosis consistent with possible obstruction**

    Yes

    1

    No

    0

    History of congestive heart failure

    No

    1

    Yes

    0

    History of sepsis or prerenal acute kidney injury, use of pressors, or hypotension

    No

    1

    Yes

    0

    Exposure to nephrotoxic medications*** prior to acute kidney injury

    No

    1

    Yes

    0

    *Documented history of HN in the medical record or any imaging history of HN in the 2 years prior to the current RUS.

    **e.g. benign prostatic hyperplasia, abdominal or pelvic cancer, neurogenic bladder, single functional kidney, or previous pelvic surgery.

    ***Aspirin (>81 mg/day), diuretic, ACE inhibitor, or IV vancomycin.

    Facts & Figures

    Interpretation:

    Licurse Score

    Risk group

    Risk of hydronephrosis on imaging

    Risk of hydronephrosis requiring stent or nephrostomy tube placement

    ≤2

    Low

    4.0%

    1.1%

    3

    Medium

    6.8%

    0.5%*

    >3

    High

    20.9%

    4.9%

    From Ip 2016.

    *Data are from the validation study, which found a paradoxical decrease in risk of hydronephrosis requiring urologic intervention for medium- versus low-risk scores. Wider validation is needed to further clarify actual risk.

    Dr. Adam M. Licurse

    About the Creator

    Adam M. Licurse, MD, MHS, is an internist at the Brigham and Women's Hospital in Boston. He is also an instructor in medicine at Harvard Medical School. Dr. Licurse’s primary research is focused on diagnostic radiology and nephrology.

    To view Dr. Adam M. Licurse's publications, visit PubMed

    About the Creator
    Dr. Adam M. Licurse