Impact of Diameter Mismatch Between the Inflow Vein and Stent on Patency in Thrombotic Iliac Vein Lesions.

Yadong Shi, Harneet Sangha, Ningcheng Li, Ramsey A Al-Hakim, John A Kaufman, Khashayar Farsad

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Article in Cardiovascular and interventional radiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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6 authors.

Yadong ShiDotter Department of Interventional Radiology, Dotter Interventional Institute, Oregon Health and Science University, 3181 SW Sam Jackson Park Rd, Portland, 97239, USA.

Harneet SanghaDotter Department of Interventional Radiology, Dotter Interventional Institute, Oregon Health and Science University, 3181 SW Sam Jackson Park Rd, Portland, 97239, USA.

Ningcheng LiDivision of Interventional Radiology, Department of Radiology, UMass Chan Medical School, Worcester, USA.

Ramsey A Al-HakimDivision of Interventional Radiology, Department of Radiology, Scripps Green Hospital, San Diego, USA.

John A KaufmanDotter Department of Interventional Radiology, Dotter Interventional Institute, Oregon Health and Science University, 3181 SW Sam Jackson Park Rd, Portland, 97239, USA.

Khashayar FarsadDotter Department of Interventional Radiology, Dotter Interventional Institute, Oregon Health and Science University, 3181 SW Sam Jackson Park Rd, Portland, 97239, USA. farsad@ohsu.edu.ORCID http://orcid.org/0000-0002-3127-7147

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo investigate the impact of post-stent placement inflow vein diameter on iliac vein stent patency in patients with thrombotic iliac vein lesions.

methodsThis is a single-center retrospective study examining consecutive patients who received primary iliac vein stent placement between January 2014 and February 2024. Inflow vein to stent diameter mismatch (ISM) was defined as the mismatch percentage of narrowed adjacent vein (NAV) diameter to stent peripheral edge diameter. The receiver operator characteristic (ROC) curve was used to assess the predictive performance of NAV and ISM on stent patency loss. Cox regression models were used to determine the predictive factors for stent patency loss. Restricted cubic spline (RCS) was used to assess the association between ISM and patency loss on a continuous scale.

resultsSeventy-three patients with 77 limbs (acute deep vein thrombosis, n = 44; post-thrombotic syndrome, n = 33) were included. During a median follow-up of 22.9 months (IQR 5.6-50.4 months), the primary stent patency rate was 67.5%. ISM had a satisfactory predictive performance (area under curve = 0.85) for stent patency loss. NAV < 6.5 mm (adjusted HR 3.01; p = .009) and ISM > 21.8% (adjusted HR 6.69; p = .001) were significantly associated with an increased risk of stent patency loss. RCS revealed that an increasing ISM was consistently associated with an increasing risk of patency loss (p = .005).

conclusionNAV and ISM by venography at the time of stent placement for thrombotic iliac vein lesions may be associated with patency loss. LEVEL OF EVIDENCE: Level 4, Case Series.

Indexed as

Iliac VeinStentsVascular PatencyVenous ThrombosisAgedFemaleHumansMaleMiddle AgedRetrospective StudiesAcute deep vein thrombosisInflow to stent mismatchNarrowed adjacent veinPost-thrombotic syndromeStent patencyThrombotic iliac vein obstructions

Identifiers

PMID41131431

DOI10.1161/CIR.0000000000000130

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.