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Extravasation of urine from kidney

Last edited: 4/15/2026

Overview

Extravasation of urine from the kidney, often associated with diagnostic imaging procedures, refers to the leakage of contrast media into surrounding tissues, leading to potential complications such as pain, swelling, and tissue damage 1.

Diagnosis

  • Clinical signs include localized pain, swelling, erythema, and warmth at the extravasation site 1.
  • Imaging studies (e.g., ultrasound) may help confirm the extent of extravasation 1.
  • Grading systems for severity are not explicitly detailed in the provided abstract 1.

    • Management

  • First-line treatments: Immediate discontinuation of contrast media administration, elevation of the affected limb, and cold compresses to reduce swelling 1.
  • Adjunctive treatments: Hydration to maintain renal function, pain management with NSAIDs or opioids as needed, and in severe cases, surgical intervention or catheter placement for decompression 1.
  • Specific drug classes: No specific drug doses are mentioned for extravasation management in the abstract 1.

    • Special Populations

  • Pregnancy: Management principles apply similarly, but caution is advised due to potential fetal risks; specific guidelines not detailed 1.
  • Pediatrics: Extravasation risk and management strategies are similar to adults, though dosing adjustments may be necessary; detailed pediatric-specific guidelines not provided 1.
  • Elderly: Increased risk of complications; careful monitoring and individualized care are recommended 1.
  • Comorbidities: Patients with renal impairment require close monitoring of renal function during and after extravasation events 1.

    • Key Recommendations

  • Recognize and promptly discontinue contrast media administration upon suspicion of extravasation 1 (Evidence: Expert opinion).
  • Implement supportive measures including cold compresses and elevation to manage symptoms 1 (Evidence: Expert opinion).
  • Tailor management in special populations with caution, considering individual risks and potential complications 1 (Evidence: Expert opinion).

    • References

    1 Sum W, Ridley LJ. Recognition and management of contrast media extravasation. Australasian radiology 2006. link

    Original source

    1. [1]
      Recognition and management of contrast media extravasation. — Sum W, Ridley LJ Australasian radiology (2006)
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