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thrombectomy

Indications: - venous thrombosis - deep vein thrombosis - pulmonary embolism - arterial thrombosis - acute stroke, large vessel within 6 hours or radiographic mismatch within 6-24 hours [3]* - complicated PCI for STEMI - thrombosed arteriovenous fistula * a small infarct core & greater amount of tissue at risk [3] Contraindications: - Not routinely indicated with PCI for STEMI [2] Benefit/risk: - patients with large cerebral infarctions have better functional outcomes with endovascular thrombectomy than with medical care alone but have more intracranial hemorrhages Procedure: - removal of a thrombus; distinguish from thrombolysis - adjunct intra-arterial alteplase following successful thrombectomy of large vessel occlusion acute ischemic stroke results in increased likelihood of favorable neurological outcomes [4] Radiology: - computed tomography suggesting a small infarct core & greater amount of tissue at risk (radiologic mismatch) [3]

Specific

arterial thrombectomy arteriovenous thrombectomy venous thrombectomy

General

vascular surgery surgical resection (excision)

References

  1. Stedman's Medical Dictionary 27th ed, Williams & Wilkins, Baltimore, 19992
  2. Kaltoft A et al, Routine thrombectomy in percutaneous coronary intervention for acute ST-segment-elevation myocardial infarction: a randomized, controlled trial. J Am Coll Cardiol 2006, 48:244 PMID: 16801464 - Ali A et al, for the AIMI Investigators Rheolytic thrombectomy with percutaneous coronary intervention for infarct size reduction in acute myocardial infarction: 30-day results from a multicenter randomized study. J Am Coll Cardiol 2006, 48:244 PMID: 16843170
  3. Nogueira RG, Jadhav AP, Haussen DC et al Thrombectomy 6 to 24 hours after stroke with a mismatch between deficit and infarct. N Engl J Med 2017 Nov 11; PMID: 29129157 Free Article - Hacke W. A new DAWN for imaging-based selection in the treatment of acute stroke. N Engl J Med 2017 Nov 11 PMID: 29129127 Free Article
  4. Renu A, Millan M, San Roman L et al Effect of Intra-arterial Alteplase vs Placebo Following Successful Thrombectomy on Functional Outcomes in Patients With Large Vessel Occlusion Acute Ischemic Stroke. The CHOICE Randomized Clinical Trial. JAMA. 2022;327(9):826-835 PMID: 35143603 PMCID: PMC8832304 (available on 2022-08-10) https://jamanetwork.com/journals/jama/fullarticle/2789098
  5. Yoshimura S, Sakai N, Yamagami H et al. Endovascular therapy for acute stroke with a large ischemic region. N Engl J Med 2022 Feb 9; [e-pub]. PMID: 35138767 https://www.nejm.org/doi/10.1056/NEJMoa2118191
  6. Wikipedia: Pulmonary thrombectomy http://en.wikipedia.org/wiki/Pulmonary_thrombectomy
  7. AngioJet Mechanical Thrombectomy http://www.dvtanswers.com/Treatments/thrombectomy.html
  8. Drexel Cardiology - Thrombectomy http://www.drexelmed.edu/Home/DrexelUniversityPhysicians/MedicalPractices/Cardiology/Treatments/Thrombectomy.aspx