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Catheter-directed interventions for acute pulmonary embolism.

Efthymios D Avgerinos1, Rabih A Chaer1

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Acute pulmonary embolism (PE) treatment is evolving. Catheter-directed therapies offer a promising alternative to systemic thrombolysis for massive and submassive PE, potentially reducing major complications.

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Area of Science:

  • Cardiology
  • Pulmonary Medicine
  • Interventional Radiology

Background:

  • Acute pulmonary embolism (PE) is a significant cause of cardiovascular death.
  • Systemic anticoagulation is the standard treatment, with escalation for massive or submassive PE.
  • Preventing chronic thromboembolic pulmonary hypertension is a key consideration.

Purpose of the Study:

  • To review contemporary evidence on catheter-directed therapies (CDTs) for acute massive and submassive PE.
  • To summarize the role and outcomes of CDTs in PE management.
  • To define hemodynamic and clinical outcomes for intervention indications.

Main Methods:

  • Review of contemporary evidence on catheter-directed therapies.
  • Analysis of treatment options including systemic thrombolysis, CDTs, and surgical thromboembolectomy.
  • Comparison of complication rates between systemic and catheter-directed thrombolysis.

Main Results:

  • Systemic thrombolysis shows benefit in massive PE but higher complication rates in submassive PE compared to CDTs.
  • Catheter-directed thrombolysis is increasingly studied for submassive PE.
  • Hemodynamic and clinical outcomes of interventions are still being defined.

Conclusions:

  • Catheter-directed therapies are a viable escalation strategy for acute PE.
  • CDTs may offer a safer alternative to systemic thrombolysis for submassive PE.
  • Further research is needed to fully establish indications and benefits of CDTs in PE treatment.