Korean Journal of Radiology

  • 제16권4호
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  • Pages.723-728
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  • 2015
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  • 1229-6929(pISSN)
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  • 2005-8330(eISSN)
대한영상의학회 (The Korean Society of Radiology)
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Stent Compression in Iliac Vein Compression Syndrome Associated with Acute Ilio-Femoral Deep Vein Thrombosis

  • Cho, Hun (Department of Radiology, Ajou University School of Medicine) ;
  • Kim, Jin Woo (Department of Radiology, Ajou University School of Medicine) ;
  • Hong, You Sun (Department of Thoracic & Cardiovascular Surgery, Ajou University School of Medicine) ;
  • Lim, Sang Hyun (Department of Thoracic & Cardiovascular Surgery, Ajou University School of Medicine) ;
  • Won, Je Hwan (Department of Radiology, Ajou University School of Medicine)
  • 투고 : 2014.11.30
  • 심사 : 2015.03.23
  • 발행 : 2015.08.01
⟨ 이전 논문 다음 논문 ⟩

초록

Objective: This study was conducted to evaluate stent compression in iliac vein compression syndrome (IVCS) and to identify its association with stent patency. Materials and Methods: Between May 2005 and June 2014, after stent placement for the treatment of IVCS with acute ilio-femoral deep vein thrombosis, follow-up CT venography was performed in 48 patients (35 women, 13 men; age range 23-87 years; median age 56 years). Using follow-up CT venography, the degree of the stent compression was calculated and used to divide patients into two groups. Possible factors associated with stent compression and patency were evaluated. The cumulative degree of stent compression and patency rate were analyzed. Results: All of the stents used were laser-cut nitinol stents. The proportion of limbs showing significant stent compression was 33%. Fifty-six percent of limbs in the significant stent compression group developed stent occlusion. On the other hand, only 9% of limbs in the insignificant stent compression group developed stent occlusion. Significant stent compression was inversely correlated with stent patency (p < 0.001). The median patency period evaluated with Kaplan-Meier analysis was 20.0 months for patients with significant stent compression. Other factors including gender, age, and type of stent were not correlated with stent patency. Significant stent compression occurred most frequently (87.5%) at the upper end of the stent (ilio-caval junction). Conclusion: Significant compression of nitinol stents placed in IVCS highly affects stent patency. Therefore, in order to prevent stent compression in IVCS, nitinol stents with higher radial resistive force may be required.

키워드

참고문헌

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피인용 문헌

  1. Device profile of the Vici venous stent for chronic iliofemoral venous obstruction recanalization: overview of its safety and efficacy vol.17, pp.5, 2020, https://doi.org/10.1080/17434440.2020.1748009
  2. Current Status and Prospect of Stent Placement for May-Thurner Syndrome vol.41, pp.6, 2015, https://doi.org/10.1007/s11596-021-2481-4