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Endovascular thrombectomy with or without systemic thrombolysis?

Georgios Tsivgoulis1, Aristeidis H Katsanos2, Dimitris Mavridis3

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Summary
This summary is machine-generated.

Bridging therapy, combining intravenous thrombolysis (IVT) with endovascular thrombectomy (ET), shows improved outcomes for emergent large vessel occlusion (ELVO) compared to ET alone. This suggests IVT and ET are complementary, not competing, treatments for ELVO.

Keywords:
acute ischemic strokeemergent large vessel occlusionintravenous thrombolysismechanical thrombectomymeta-analysis

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Area of Science:

  • Neurology
  • Interventional Cardiology
  • Vascular Surgery

Background:

  • Current guidelines recommend intravenous thrombolysis (IVT) before endovascular thrombectomy (ET) for emergent large vessel occlusion (ELVO).
  • Observational data raise questions about the safety and efficacy of IVT pretreatment in ELVO patients.

Purpose of the Study:

  • To compare the efficacy of direct ET versus bridging therapy (IVT followed by ET) in ELVO patients.
  • To evaluate outcomes in patients with ELVO treated with different reperfusion strategies.

Main Methods:

  • Meta-analysis of subgroups from randomized controlled trials (RCTs) on ET for ELVO.
  • Comparison of outcomes between patients receiving bridging therapy and those receiving ET monotherapy.

Main Results:

  • Bridging therapy was associated with significantly lower rates of 90-day death or severe dependency (19.0% vs. 31.0%).
  • A trend towards higher 90-day functional independence was observed in the bridging therapy group (51.4% vs. 41.7%).
  • Shift analysis indicated a nonsignificant trend towards functional improvement with bridging therapy.

Conclusions:

  • Findings suggest IVT and ET are complementary, not competing, therapies for ELVO.
  • The results challenge the notion of potential equality between ET monotherapy and bridging therapy in ELVO.
  • Limitations include potential confounding bias due to non-randomized IVT assignment and variations in onset to groin puncture times.