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SIR 2025

Arterial Interventions

Traditional Poster

Session: Traditional Poster Presentations

2 - Early Experience with Mechanical Thrombectomy for Treatment of Intermediate and High-risk Pulmonary Embolism in a Canadian Tertiary Hospital

Monday, March 31, 2025
12:10 PM – 1:10 PM CT
Location: Music City Center, Expo Poster Area

    Poster Presenter(s)

  • MY

    Morgan Young-Speirs, MD

    Diagnostic Radiology Resident
    University of British Columbia, Canada

    • Author/Co-author(s)

  • PL

    Pedro Lourenco, MD

    Interventional Radiologist, Attending
    University of British Columbia, Surrey Memorial Hospital, Canada

  • JW

    Jun Wang, MD

    Interventional Radiologist, Attending
    University of British Columbia, Surrey Memorial Hospital, Canada

  • BH

    Behrang Homayoon, MD

    Interventional Radiologist, Attending
    University of British Columbia, Surrey Memorial Hospital, Canada

Purpose: To evaluate initial experiences regarding the safety, effectiveness and cost of treating pulmonary embolism (PE) with mechanical thrombectomy in a Canadian tertiary hospital.

Materials and Methods:

All adult patients treated for PE with the Inari FlowTriever System (Inari Medical, Irvine, California) between January 2021 and December 2023 were included. Safety, effectiveness and cost surrogate outcomes included clinical deterioration, hemoptysis, major bleeding, 30-day all-cause mortality, 30-day all-cause hospital readmission, technical procedural success, clinical improvement, reduction in pulmonary artery pressure and hospital and ICU stay lengths.

Results:

29 patients with a mean age of 61 years were included of whom 97% presented with intermediate-high or high risk PE. Technical success and clinical improvement were achieved in 97% of patients, with a reduction in intraprocedural pulmonary arterial pressure in 80%. One major bleed (3%), 2 episodes of hemoptysis (7%) and 1 procedure related clinical deterioration (3%) were reported. The 30-day all-cause mortality rate was 7%, with one death being PE-related.

Conclusion: Early experiences with mechanical thrombectomy in this single center, non-industry sponsored study aligns with previous research (1-4), reaffirming that mechanical thrombectomy is a safe and effective treatment for PE.