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Author Spotlight: Developing a Bedside Protocol for Kidney and Genitourinary Ultrasonography
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Author Spotlight: Developing a Bedside Protocol for Kidney and Genitourinary Ultrasonography

Published on: June 21, 2024

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Contrast-enhanced ultrasound for the evaluation of acute renal infarction

Toru Miyoshi1, Hideki Okayama2, Go Hiasa2

  • 1Department of Cardiology, Ehime Prefectural Central Hospital, Kasugamachi 83, Matsuyama, Ehime, 790-0024, Japan. mmyrb0807@gmail.com.

Journal of Medical Ultrasonics (2001)
|December 26, 2015
PubMed

Insights

A patient with hypertrophic cardiomyopathy experienced back pain after an implantable cardioverter-defibrillator (ICD) shock. Contrast-enhanced ultrasound revealed left kidney infarction, a complication of the device shock.

Area of Science:

  • Cardiology
  • Nephrology
  • Medical Imaging

Background:

  • A 65-year-old male with dilated hypertrophic cardiomyopathy and atrial fibrillation presented after ventricular fibrillation and an implantable cardioverter-defibrillator (ICD) shock.
  • The patient developed acute kidney injury with suspected renal infarction, complicated by chronic renal failure and the presence of an ICD, precluding standard imaging.

Observation:

  • Computed tomography and magnetic resonance imaging were contraindicated due to the patient's chronic renal failure and ICD.
  • Contrast-enhanced ultrasonography (CEUS) was utilized to assess acute kidney injury and suspected renal infarction.

Findings:

  • CEUS demonstrated a wedge-shaped, non-enhancing area in the left kidney.
  • This finding is indicative of renal infarction, a potential complication following an ICD shock.

Implications:

  • CEUS serves as a valuable tool for diagnosing renal infarction in patients with contraindications to CT and MRI.
  • This case highlights a rare complication of ICD therapy and underscores the utility of advanced ultrasound techniques in challenging clinical scenarios.

Keywords:
Acute renal infarctionContrast-enhanced ultrasoundSonazoid

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