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A large amount of microscopic precipitates are inevitably injected during infusion therapy without an in-line filter

Shinya Shimoyama1, Daisuke Takahashi2, Syuhei Arai1

  • 1Department of Pediatric Cardiology, Gunma Children's Medical Center, Shibukawa 377-8577, Japan.

Oxford Medical Case Reports
|February 24, 2022
PubMed

Insights

Infusion route occlusion in pediatric heart failure can be caused by microscopic drug crystals. Proper management is crucial to prevent potential harm from undetected crystalline particles.

Area of Science:

  • Pediatric Cardiology
  • Pharmacology
  • Biomedical Engineering

Background:

  • Severe heart failure in children poses significant hemodynamic challenges.
  • Central venous catheters (CVCs) are vital for medication delivery in these patients.
  • Infusion route complications can lead to critical patient condition fluctuations.

Observation:

  • A 13-year-old girl with dilated cardiomyopathy experienced recurrent CVC route occlusions.
  • Initial assessments showed no visible CVC, infusion line, filter, or pump abnormalities.
  • Scanning electron microscopy identified crystallized dobutamine and heparin occluding the in-line filter.

Findings:

  • Microscopic crystallization of commonly used drugs like dobutamine and heparin can occur.
  • These crystals can lead to occlusion of in-line filters, even without apparent external issues.
  • The presence of an in-line filter is critical to prevent particulate matter from entering circulation.

Implications:

  • Highlights the need for meticulous infusion management in pediatric severe heart failure.
  • Underscores the risk of sub-clinical drug crystallization impacting infusion efficacy and safety.
  • Emphasizes the potential for undetected particulate matter injection and associated risks without adequate filtration.

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