endarterectomy performed under regional anesthesia. 12 Nevertheless, the use of a proximal occlusion catheter with venous outflow can be limited to the period in which alternative protection devices are threaded across the carotid lesion; thereafter, the filtering devices can be relied upon to prevent embolization during subsequent plaque manipulation. Only through the use of such well thought out and innovative strategies based on sound theoretical and experimental data can the rate of distal embolization during carotid angioplasty and stenting be reduced to negligible levels. REFERENCES 1. Smith JL, Evans DH, Fan L, Gaunt ME, London NJ, Bell PR, et al. Interpretation of embolic phenomena during carotid endarterectomy. Stroke 1995;26:2281-4. 2. Martin JB, Pache JC, Treggiari-Venzi M, Murphy KJ, Gailloud P, Puget E, et al. Role of the distal balloon protection technique in the prevention of cerebral embolic events during carotid stent placement. Stroke 2001;32:479-84. 3. Jordan WD Jr, Voellinger DC, Doblar DD, Plyushcheva NP, Fisher WS, McDowell HA. Microemboli detected by transcranial Doppler monitoring in patients during carotid angioplasty versus carotid endarterectomy. Cardiovasc Surg 1999;7:33-8. 4. Ohki T, Parodi J, Veith FJ, Bates M, Bade M, Chang D, et al. Efficacy of a proximal occlusion catheter with reversal of flow in the prevention of embolic events during carotid artery stenting: an experimental analysis. J Vasc Surg 2001;33:504-9. 5. Ohki T, Roubin GS, Veith FJ, Iyer SS, Brady E. Efficacy of a filter device in the prevention of embolic events during carotid angioplasty and stenting: an ex vivo analysis. J Vasc Surg 1999;30:1034-44. 6. Ohki T, Veith FJ. Carotid stenting with and without protection devices: should protection be used in all patients? Semin Vasc Surg 2000;13:144-52. 7. Kachel R. Results of balloon angioplasty in the carotid arteries. J Endovasc Surg 1996;3:22-30. 8. Parodi JC, La Mura R, Ferreira LM, Mendez MV, Cersosimo H, Schonholz C, et al. Initial evaluation of carotid angioplasty and stenting with three different cerebral protection devices. J Vasc Surg 2000;32:1127-36. 9. Theron J, Courtheoux P, Alachkar F, Bouvard G, Maiza D. New triple coaxial catheter system for carotid angioplasty with cerebral protection. Am J Neuroradiol 1990;11:869-74. 10. Archie JP. Technique and clinical results of carotid stump back-pres- sure to determine selective shunting during carotid endarterectomy. J Vasc Surg 1991;13:319-27. 11. Martin PJ, Smith JL, Gaunt ME, Naylor AR. Assessment of intracra- nial primary collaterals using transcranial color-coded real-time sonog- raphy. J Neuroimaging 1995;5:199-205. 12. Sbarigia E, DarioVizza C, Antonini M, Speziale F, Maritti M, Fiorani B, et al. Locoregional versus general anesthesia in carotid surgery: is there an impact on perioperative myocardial ischemia? Results of a prospective monocentric randomized trial. J Vasc Surg 1999;30:131-8. Submitted Apr 30, 2001; accepted Jun 8, 2001. JOURNAL OF VASCULAR SURGERY 580 Ouriel, Greenberg, and Sarac October 2001 CORRECTION The authors inadvertently omitted the names of two coauthors in “The effects of extremely low shear stress on cellular proliferation and neointimal thickening in the failing bypass graft” (J Vasc Surg 2001;34:90-7). The author names should read as follows: Shari L. Meyerson, MD, Christopher L. Skelly, MD, Michael A. Curi, MD, MPH, Umar M. Shakur, BS, James E. Vosicky, Seymour Glagov, MD, Lewis B. Schwartz, MD, Thomas Christen, MD, and Giulio Gabbiani, MD. Drs Christen and Gabbiani are both from the Department of Pathology, University of Geneva-CMU, Geneva, Switzerland.

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endarterectomy performed under regional anesthesia.12

Nevertheless, the use of a proximal occlusion catheterwith venous outflow can be limited to the period inwhich alternative protection devices are threaded acrossthe carotid lesion; thereafter, the filtering devices can berelied upon to prevent embolization during subsequentplaque manipulation. Only through the use of such wellthought out and innovative strategies based on soundtheoretical and experimental data can the rate of distalembolization during carotid angioplasty and stenting bereduced to negligible levels.

REFERENCES1. Smith JL, Evans DH, Fan L, Gaunt ME, London NJ, Bell PR, et al.

Interpretation of embolic phenomena during carotid endarterectomy.Stroke 1995;26:2281-4.

2. Martin JB, Pache JC, Treggiari-Venzi M, Murphy KJ, Gailloud P,Puget E, et al. Role of the distal balloon protection technique in theprevention of cerebral embolic events during carotid stent placement.Stroke 2001;32:479-84.

3. Jordan WD Jr, Voellinger DC, Doblar DD, Plyushcheva NP, FisherWS, McDowell HA. Microemboli detected by transcranial Dopplermonitoring in patients during carotid angioplasty versus carotidendarterectomy. Cardiovasc Surg 1999;7:33-8.

4. Ohki T, Parodi J, Veith FJ, Bates M, Bade M, Chang D, et al. Efficacyof a proximal occlusion catheter with reversal of flow in the preven-

tion of embolic events during carotid artery stenting: an experimentalanalysis. J Vasc Surg 2001;33:504-9.

5. Ohki T, Roubin GS, Veith FJ, Iyer SS, Brady E. Efficacy of a filterdevice in the prevention of embolic events during carotid angioplastyand stenting: an ex vivo analysis. J Vasc Surg 1999;30:1034-44.

6. Ohki T, Veith FJ. Carotid stenting with and without protectiondevices: should protection be used in all patients? Semin Vasc Surg2000;13:144-52.

7. Kachel R. Results of balloon angioplasty in the carotid arteries. JEndovasc Surg 1996;3:22-30.

8. Parodi JC, La Mura R, Ferreira LM, Mendez MV, Cersosimo H,Schonholz C, et al. Initial evaluation of carotid angioplasty and stent-ing with three different cerebral protection devices. J Vasc Surg2000;32:1127-36.

9. Theron J, Courtheoux P, Alachkar F, Bouvard G, Maiza D. New triplecoaxial catheter system for carotid angioplasty with cerebral protec-tion. Am J Neuroradiol 1990;11:869-74.

10. Archie JP. Technique and clinical results of carotid stump back-pres-sure to determine selective shunting during carotid endarterectomy. JVasc Surg 1991;13:319-27.

11. Martin PJ, Smith JL, Gaunt ME, Naylor AR. Assessment of intracra-nial primary collaterals using transcranial color-coded real-time sonog-raphy. J Neuroimaging 1995;5:199-205.

12. Sbarigia E, DarioVizza C, Antonini M, Speziale F, Maritti M, FioraniB, et al. Locoregional versus general anesthesia in carotid surgery: isthere an impact on perioperative myocardial ischemia? Results of aprospective monocentric randomized trial. J Vasc Surg 1999;30:131-8.

Submitted Apr 30, 2001; accepted Jun 8, 2001.

JOURNAL OF VASCULAR SURGERY580 Ouriel, Greenberg, and Sarac October 2001

CORRECTION

The authors inadvertently omitted the names of two coauthors in “The effects of extremely low shear stresson cellular proliferation and neointimal thickening in the failing bypass graft” (J Vasc Surg 2001;34:90-7). Theauthor names should read as follows: Shari L. Meyerson, MD, Christopher L. Skelly, MD, Michael A. Curi, MD,MPH, Umar M. Shakur, BS, James E. Vosicky, Seymour Glagov, MD, Lewis B. Schwartz, MD, ThomasChristen, MD, and Giulio Gabbiani, MD. Drs Christen and Gabbiani are both from the Department ofPathology, University of Geneva-CMU, Geneva, Switzerland.