Evidence map›Paper›PMID 40208298›Full record

ArticleCardiovascular and interventional radiology2025

Low Post-Stent Placement Iliofemoral Vein Peak Velocity by Doppler Ultrasound: Prognostic Implication for Re-Intervention in Thrombotic Iliac Vein Lesions.

Yadong Shi, Leonardo Campos, Kentaro Yamada, Kenkichi Michimoto, Atsushi Saiga, 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. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Factors associated with patency loss after iliocaval and iliofemoral venous stenting.Journal of vascular surgery. Venous and lymphatic disorders · 2026
    Review
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Yadong ShiDotter Department of Interventional Radiology, Dotter Interventional Institute, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd, Portland, 97239, USA.
Leonardo CamposDotter Department of Interventional Radiology, Dotter Interventional Institute, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd, Portland, 97239, USA.
Kentaro YamadaDotter Department of Interventional Radiology, Dotter Interventional Institute, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd, Portland, 97239, USA.
Kenkichi MichimotoDotter Department of Interventional Radiology, Dotter Interventional Institute, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd, Portland, 97239, USA.
Atsushi SaigaDotter Department of Interventional Radiology, Dotter Interventional Institute, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd, Portland, 97239, USA.
Khashayar FarsadDotter Department of Interventional Radiology, Dotter Interventional Institute, Oregon Health & 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 association between post-stent placement peak velocity in the iliofemoral vein and re-intervention in patients with thrombotic iliac vein lesions.

methodsThis was a single-center retrospective cohort study. Between January 2014 and February 2024, consecutive patients who received primary stent placement for thrombotic iliac vein lesions with eligible post-procedure duplex ultrasound were included. Twenty random limbs with normal duplex ultrasound findings were selected to investigate the venous peak velocities in normal limbs. Cox regression models were used to determine predictive factors for re-intervention with a hazard ratio (HR).

resultsFifty-one patients (54 limbs) were included. The mean age was 41.9 ± 18.2 years, and 78.4% were female. During a median follow-up of 32.7 months, 27.7% (15/54) of limbs encountered symptom recurrence with stent malfunction and received re-intervention. There was no significant difference in CIV peak velocity between patent stented limbs and normal limbs (30.3 vs 32.0 cm/s, p = .29). However, the limbs that required re-intervention had a significantly lower CIV peak velocity (25.3 vs 32.0 cm/s, p < .001). Post-stent placement peak velocities in the iliofemoral veins were significantly associated with re-intervention. ROC analysis suggested common iliac vein (CIV) peak velocity had the highest predictive performance (area under curve = 0.76). A CIV peak velocity < 26.6 cm/s (adjusted HR 6.66; p = .016) was significantly associated with an increased re-intervention risk.

conclusionLow post-stent placement peak velocities in the iliofemoral veins were significantly associated with future re-intervention in patients with thrombotic iliac vein lesions. LEVEL OF EVIDENCE: Level 4, Case Series.

Indexed as

Femoral VeinIliac VeinStentsUltrasonography, DopplerUltrasonography, Doppler, DuplexVenous ThrombosisAdultBlood Flow VelocityFemaleHumansMaleMiddle AgedPrognosisRetrospective StudiesDuplex ultrasoundPeak velocityStent patencyThrombotic iliac vein lesionVenous stent

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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.