[Outcome of intraarterial procedures in acute ischemic stroke]

E Martínez-Fernández1, A González, A Gil-Peralta

  • 1Servicio de Neurología. Hospital Universitario Virgen del Rocío, Sevilla, Spain. emartinezf@ya.com

Insights

Intraarterial procedures for acute stroke, particularly middle cerebral artery occlusions, show high recanalization and improved patient outcomes compared to controls. Basilar thrombosis also yielded excellent long-term results, though carotid occlusions were not significantly improved.

Area of Science:

  • Neurology
  • Interventional Neuroradiology
  • Vascular Neurology

Context:

  • Acute stroke management involves thrombolytic agents and mechanical devices.
  • Intraarterial procedures are increasingly utilized in treating acute stroke patients.
  • This study evaluates intervention protocols and outcomes at Hospital Virgen del Rocío (2003-2004).

Purpose:

  • To describe the intervention protocol and outcomes of intraarterial procedures in acute stroke patients.
  • To compare outcomes of mechanical thrombectomy with historical controls, including the PROACT II trial's placebo group.
  • To analyze results based on arterial occlusion site: middle cerebral artery (MCA), basilar artery, and intracranial carotid artery.

Summary:

  • 32 procedures were performed for MCA (18), basilar (8), and carotid (6) occlusions, using urokinase, abciximab, and mechanical devices.
  • MCA occlusions demonstrated high recanalization (95%) and improved independence (55% vs. 25% controls, p=0.001).
  • Basilar thrombosis had excellent outcomes (57% independent), while carotid occlusions showed no significant improvement.

Impact:

  • Intraarterial procedures for MCA occlusions significantly improve recanalization and clinical outcomes compared to isolated thrombolysis.
  • Excellent long-term outcomes were observed in basilar thrombosis cases.
  • The study highlights the efficacy of mechanical thrombectomy for specific stroke types, informing treatment strategies.
Abstract

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