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Retained fibrin sheaths: chest computed tomography findings and clinical associations

David J Krausz1, Jessica S Fisher, Galia Rosen

  • 1Departments of *Radiology §Medicine ∥Family and Social Medicine, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx †Department of Radiology, Staten Island University Hospital, Staten Island, NY ‡Department of Radiology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.

Journal of Thoracic Imaging
|July 13, 2013
PubMed

Insights

Retained fibrin sheaths after central venous catheter (CVC) removal were found in 13.6% of patients. These sheaths were more common in women and associated with venous occlusion.

Area of Science:

  • Radiology
  • Vascular Medicine
  • Medical Devices

Background:

  • Fibrin sheaths can form around long-term central venous catheters (CVCs).
  • These sheaths may persist after catheter removal.
  • Understanding their prevalence and associations is clinically important.

Purpose of the Study:

  • To evaluate the prevalence of retained fibrin sheaths after CVC removal.
  • To describe the computed tomographic (CT) appearance of these sheaths.
  • To identify clinical associations of retained fibrin sheaths.

Main Methods:

  • Retrospective analysis of 147 adult patients who underwent CT post-CVC removal.
  • Calculation of fibrin sheath remnant prevalence.
  • Bivariate and multivariate analyses to assess associations with patient demographics, venous status, and CVC complications.

Main Results:

  • Retained fibrin sheaths were present in 13.6% of cases.
  • Calcification was observed in 45% of sheaths.
  • Sheaths were significantly more common in women and associated with venous occlusion and collaterals.

Conclusions:

  • Retained fibrin sheaths are a notable finding after CVC removal.
  • Nearly half of these sheaths are calcified.
  • Female sex and venous occlusion are independently associated with retained fibrin sheaths.
Abstract

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