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Treatment of Carotid Artery Disease: Endarterectomy or Angioplasty?

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Abstract

The management of carotid stenosis has enjoyed renewed interest in the neurological community in recent years due to the advent of endovascular approaches. In concert, progress in medical treatment of these patients has rekindled the debate regarding the best management of carotid stenosis overall, both for symptomatic and asymptomatic disease. For symptomatic carotid stenosis, the major decision required is choosing the type of intervention best suited for individual patients: carotid endarterectomy versus carotid artery stenting. For patients with asymptomatic carotid stenosis, intensive medical management has evolved significantly over the past decade to decrease the risk of ischemic stroke to match surgical intervention under most circumstances. This review will examine the supporting evidence for each intervention, and discuss the recent advances in medical and endovascular therapy that provide the data for a new era in clinical decision making.

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Abbreviations

ACAS:

Asymptomatic Carotid Atherosclerosis Study

ACST:

Asymptomatic Carotid Surgery Trial

CAVATAS:

Carotid and Vertebral Artery Transluminal Angioplasty Study

COSS:

Carotid Occlusion Surgery Study

CREST:

Carotid Revascularization Endarterectomy Versus Stenting Trial

ECST:

European Carotid Surgery Trial

EVA-3S:

Endarterectomy Versus Angioplasty in Patients with Symptomatic Severe Carotid Stenosis

ICSS:

International Carotid Stenting Study

NASCET:

North American Symptomatic Carotid Endarterectomy Trial

SAPPHIRE:

Stenting and Angioplasty with Protection in Patients at High Risk for Endarterectomy

SPACE:

Stent Protected-Angioplasty Versus Carotid Endarterectomy

References

Papers of particular interest, published recently, have been highlighted as: • Of importance •• Of major importance

  1. Ferguson GG, Eliasziw M, Barr HW, et al.: The North American Symptomatic Carotid Endarterectomy Trial: surgical results in 1415 patients. Stroke 1999, 30:1751–1758.

    CAS  PubMed  Google Scholar 

  2. Endarterectomy for asymptomatic carotid artery stenosis. Executive Committee for the Asymptomatic Carotid Atherosclerosis Study [no authors listed]. JAMA 1995, 273:1421–1428.

    Article  Google Scholar 

  3. Grubb RL Jr, Powers WJ, Derdeyn CP, et al.: The Carotid Occlusion Surgery Study. Neurosurg Focus 2003, 14:e9.

    Article  PubMed  Google Scholar 

  4. Beneficial effect of carotid endarterectomy in symptomatic patients with high-grade carotid stenosis. North American Symptomatic Carotid Endarterectomy Trial Collaborators [no authors listed]. N Engl J Med 1991, 325:445–453.

  5. Barnett HJ, Taylor DW, Eliasziw M, et al.: Benefit of carotid endarterectomy in patients with symptomatic moderate or severe stenosis. N Engl J Med 1998, 339:1415–1425.

    Article  CAS  PubMed  Google Scholar 

  6. Rothwell PM, Gutnikov SA, Warlow CP: Reanalysis of the final results of the European Carotid Surgery Trial. Stroke 2003, 34:514–523.

    Article  CAS  PubMed  Google Scholar 

  7. Endovascular versus surgical treatment in patients with carotid stenosis in the Carotid and Vertebral Artery Transluminal Angioplasty Study (CAVATAS): a randomised trial. CAVATAS-Investigators [no authors listed]. Lancet 2001, 357:1729–1737.

  8. McCabe DJ, Pereira AC, Clifton A, et al.: Restenosis After carotid angioplasty, stenting, or endarterectomy in the Carotid and Vertebral Artery Transluminal Angioplasty Study (CAVATAS). Stroke 2005, 36:281–286.

    Article  PubMed  Google Scholar 

  9. Yadav JS, Wholey MH, Kuntz RE, et al.: Protected carotid-artery stenting versus endarterectomy in high-risk patients. N Engl J Med 2004, 351:1493–1501.

    Article  CAS  PubMed  Google Scholar 

  10. •• Gurm HS, Yadav JS, Fayad P, et al.: Long-term results of carotid stenting versus endarterectomy in high-risk patients. N Engl J Med 2008, 358:1572–1579. The long term of the SAPPHIRE study reveals the noninferiority of CAS after 3 years, suggesting durability and sustained protection against stroke.

    Article  CAS  PubMed  Google Scholar 

  11. SPACE Collaborative Group, Ringleb PA, Allenberg J, et al.: 30 day results from the SPACE trial of stent-protected angioplasty versus carotid endarterectomy in symptomatic patients: a randomised non-inferiority trial. Lancet 2006, 368:1239–1247.

    Article  CAS  PubMed  Google Scholar 

  12. • Eckstein HH, Ringleb P, Allenberg JR, et al.: Results of the Stent-Protected Angioplasty versus Carotid Endarterectomy (SPACE) study to treat symptomatic stenoses at 2 years: a multinational, prospective, randomised trial. Lancet Neurol 2008, 7:893–902. Despite the initially higher periprocedural rate of stroke seen with CAS, the long-term outcome was similar to CEA.

    Article  PubMed  Google Scholar 

  13. Jansen O, Fiehler J, Hartmann M, et al.: Protection or nonprotection in carotid stent angioplasty: the influence of interventional techniques on outcome data from the SPACE Trial. Stroke 2009, 40:841–846.

    Article  PubMed  Google Scholar 

  14. Cosottini M, Michelassi MC, Puglioli M, et al.: Silent cerebral ischemia detected with diffusion-weighted imaging in patients treated with protected and unprotected carotid artery stenting. Stroke 2005 36:2389–2393.

    Article  PubMed  Google Scholar 

  15. Macdonald S, Evans DH, Griffiths PD, et al.: Filter-protected versus unprotected carotid artery stenting: a randomised trial. Cerebrovasc Dis 2010, 29:282–289.

    Article  PubMed  Google Scholar 

  16. Mas JL, Chatellier G, Beyssen B, et al.: Endarterectomy versus stenting in patients with symptomatic severe carotid stenosis. N Engl J Med 2006, 355:1660–1671.

    Article  CAS  PubMed  Google Scholar 

  17. •• Mas JL, Trinquart L, Leys D, et al.: Endarterectomy Versus Angioplasty in Patients with Symptomatic Severe Carotid Stenosis (EVA-3S) trial: results up to 4 years from a randomised, multicentre trial. Lancet Neurol 2008, 7:885–892. The EVA-3S trial showed superiority of CEA compared to CAS with embolism protection. This confirms the findings of the SPACE trial, which shows that the higher rate of stroke seen with CAS occurs during the periprocedural period; however, the long-term protection is similar.

    Article  PubMed  Google Scholar 

  18. Qureshi AI, Kirmani JF, Divani AA, et al.: Carotid angioplasty with or without stent placement versus carotid endarterectomy for treatment of carotid stenosis: a meta-analysis. Neurosurgery 2005, 56:1171–1181.

    Article  PubMed  Google Scholar 

  19. Capoccia L, Speziale F, Gazzetti M, et al.: Comparative study on carotid revascularization (endarterectomy vs stenting) using markers of cellular brain injury, neuropsychometric tests, and diffusion-weighted magnetic resonance imaging. J Vasc Surg 2010, 51:584.e3–591.e3.

    Article  Google Scholar 

  20. Bonati LH, Jongen LM, Haller S, et al.: New ischaemic brain lesions on MRI after stenting or endarterectomy for symptomatic carotid stenosis: a substudy of the International Carotid Stenting Study (ICSS). Lancet Neurol 2010, 9:353–362.

    Article  PubMed  Google Scholar 

  21. • Zhou W, Dinishak D, Lane B, et al.: Long-term radiographic outcomes of microemboli following carotid interventions. J Vasc Surg 2009, 50:1314–1319. This paper analyzes the long-term radiological markers for stroke following CEA and CAS.

    Article  PubMed  Google Scholar 

  22. Heyer EJ, Adams DC, Solomon RA, et al.: Neuropsychometric changes in patients after carotid endarterectomy. Stroke 1998, 29:1110–1115.

    CAS  PubMed  Google Scholar 

  23. • Ederle J, Dobson J, Featherstone RL, et al.: Carotid artery stenting compared with endarterectomy in patients with symptomatic carotid stenosis (International Carotid Stenting Study): an interim analysis of a randomised controlled trial. Lancet 2010, 375:985–997. The interim analysis of this international study shows superiority of CEA compared with CAS.

    Article  PubMed  Google Scholar 

  24. Rothwell PM: Poor outcomes after endovascular treatment of symptomatic carotid stenosis: time for a moratorium. Lancet Neurol 2009, 8:871–873.

    Article  PubMed  Google Scholar 

  25. •• Brott TG, Hobson RW 2nd, Howard G, et al.: Stenting versus endarterectomy for treatment of carotid-artery stenosis. N Engl J Med 2010, 363:11–23. The CREST trial showed that CEA and CAS are similarly beneficial in symptomatic patients. CEA may prevent more strokes at the expense of more myocardial infarcts compared with CAS. An unexpected finding is that the patients older than 70 years beneft more from CEA and the younger ones benefit more from CAS.

    Article  CAS  PubMed  Google Scholar 

  26. Chiam PT, Roubin GS, Iyer SS, et al.: Carotid artery stenting in elderly patients: Importance of case selection. Catheter Cardiovasc Interv 2008, 72:318–324.

    Article  PubMed  Google Scholar 

  27. Halliday A, Mansfield A, Marro J, et al.: Prevention of disabling and fatal strokes by successful carotid endarterectomy in patients without recent neurological symptoms: randomised controlled trial. Lancet 2004, 363:1491–1502.

    Article  CAS  PubMed  Google Scholar 

  28. •• Abbott AL: Medical (nonsurgical) intervention alone is now best for prevention of stroke associated with asymptomatic severe carotid stenosis: results of a systematic review and analysis. Stroke 2009, 40:e573–e583. This analysis demonstrates that the medical management of asymptomatic carotid stenosis is superior to CEA or CAS.

    Article  PubMed  Google Scholar 

  29. Marquardt L, Geraghty OC, Mehta Z, et al.: Low risk of ipsilateral stroke in patients with asymptomatic carotid stenosis on best medical treatment: a prospective, population-based study. Stroke 2010, 41:e11–e17.

    Article  PubMed  Google Scholar 

  30. Serena J, Segura T, Castellanos M, et al.: Microembolic signal monitoring in hemispheric acute ischaemic stroke: a prospective study. Cerebrovasc Dis 2000, 10:278–282.

    Article  CAS  PubMed  Google Scholar 

  31. Molloy J, Markus HS: Asymptomatic embolization predicts stroke and TIA risk in patients with carotid artery stenosis. Stroke 1999, 30:1440–1443.

    CAS  PubMed  Google Scholar 

  32. King A, Markus HS: Doppler embolic signals in cerebrovascular disease and prediction of stroke risk: a systematic review and meta-analysis. Stroke 2009, 40:3711–3717.

    Article  PubMed  Google Scholar 

  33. Spence JD, Tamayo A, Lownie SP, et al.: Absence of microemboli on transcranial Doppler identifies low-risk patients with asymptomatic carotid stenosis. Stroke 2005, 36:2373–2378.

    Article  PubMed  Google Scholar 

  34. Saczynski JS, Sigurdsson S, Jonsdottir MK, et al.: Cerebral infarcts and cognitive performance: importance of location and number of infarcts. Stroke 2009, 40:677–682.

    Article  PubMed  Google Scholar 

  35. Lazar RM, Fitzsimmons BF, Marshall RS, et al.: Midazolam challenge reinduces neurological deficits after transient ischemic attack. Stroke 2003, 34:794–796.

    Article  CAS  PubMed  Google Scholar 

  36. Spence JD, Coates V, Li H, et al.: Effects of intensive medical therapy on microemboli and cardiovascular risk in asymptomatic carotid stenosis. Arch Neurol 2010, 67:180–186.

    Article  PubMed  Google Scholar 

  37. Box FM, van der Grond J, de Craen AJ, et al.: Pravastatin decreases wall shear stress and blood velocity in the internal carotid artery without affecting flow volume: results from the PROSPER MRI Study. Stroke 2007, 38:1374–1376.

    Article  CAS  PubMed  Google Scholar 

  38. Soljanlahti S, Raininko R, Hyttinen L, et al.: Statin-treated familial hypercholesterolemia patients with coronary heart disease and pronounced atherosclerosis do not have more brain lesions than healthy controls in later middle age. Acta Radiol 2007, 48:894–899.

    Article  CAS  PubMed  Google Scholar 

  39. • Spence JD, Hackam DG: Treating arteries instead of risk factors: a paradigm change in management of atherosclerosis. Stroke 2010, 41:1193–1199. This paper demonstrates the effectiveness in the reduction total plaque area with optimal medical management that targets the treatment of plaque rather than the cerebrovascular risk factors.

    Article  PubMed  Google Scholar 

  40. Rothwell PM, Warlow CP: Low risk of ischemic stroke in patients with reduced internal carotid artery lumen diameter distal to severe symptomatic carotid stenosis: cerebral protection due to low poststenotic flow? Stroke 2000, 31:622–630.

    CAS  PubMed  Google Scholar 

  41. Hoksbergen A, Legemate D, Csiba L, et al.: Absent collateral function of the circle of Willis as risk factor for ischemic stroke. Cerebrovasc Dis 2003, 16:191–198.

    Article  CAS  PubMed  Google Scholar 

  42. Marshall RS, Rundek T, Sproule DM, et al.: Monitoring of cerebral vasodilatory capacity with transcranial Doppler carbon dioxide inhalation in patients with severe carotid artery disease. Stroke 2003, 34:945–949.

    Article  PubMed  Google Scholar 

  43. Reiff T, Stingele R, Eckstein HH, et al.: Stent-protected angioplasty in asymptomatic carotid artery stenosis vs. endarterectomy: SPACE2; a three-arm randomised-controlled clinical trial. Int J Stroke 2009, 4:294–299.

    Article  CAS  Google Scholar 

  44. Rudarakanchana N, Dialynas M, Halliday A: Asymptomatic Carotid Surgery Trial-2 (ACST-2): rationale for a randomised clinical trial comparing carotid endarterectomy with carotid artery stenting in patients with asymptomatic carotid artery stenosis. Eur J Vasc Endovasc Surg 2009 38:239–242.

    Article  CAS  PubMed  Google Scholar 

  45. El-Koussy M, Schroth G, Do DD, et al.: Periprocedural embolic events related to carotid artery stenting detected by diffusion-weighted MRI: comparison between proximal and distal embolus protection devices. J Endovascr Ther 2007 14:293–303.

    Article  Google Scholar 

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Correspondence to Randolph S. Marshall.

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Marchidann, A., Marshall, R.S. Treatment of Carotid Artery Disease: Endarterectomy or Angioplasty?. Curr Neurol Neurosci Rep 11, 61–66 (2011). https://doi.org/10.1007/s11910-010-0153-z

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