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1. Restenosis and risk of stroke after stenting or endarterectomy for symptomatic carotid stenosis in the International Carotid Stenting Study (ICSS): secondary analysis of a randomised trial

Author

Algra, Ale, Bakke, S J, Baldwin, Neil, Beard, Jonathan, Bladin, Christopher, Bland, J Martin, Boiten, J, Bosiers, Mark, Bradbury, A W, Canovas, David, Chambers, Brian, Chamorro, Angel, Chataway, Jonathan, Clifton, Andrew, Collins, Rory, Coward, Lucy, Czlonkowska, Anna, Davis, Stephen, DeJaegher, L, Doig, David, Dorman, Paul, Ederle, Jörg, Featherstone, Roland F, Ferro, Jose M, Gaines, Peter, Gilling-Smith, G, Goertler, M, Gottsäter, A, Hacke, Werne, Halliday, Alison, Hamilton, George, Hendriks, J M H, Hill, Michael, Kapelle, L Jaap, Kaste, Markku, Kennedy, Fiona, Konrad, P, Kool, LJS, Koudstaal, Peter J, Malik, I, Markus, Hugh, Martin, Peter, Mas, Jean-Louis, McCollum, Charles, McGahan, T, McGuire, A J, Michel, Philippe, Molyneux, Andrew, Moroney, Jane, Mosch, A, Moss, J, Naylor, Ross, Peeters, A, Roy, D, Schultz, David, Seriki, D M, Shinton, R A, Sidhu, Paul, Stewart, J, Subramanian, G, Sztajzel, R, Than, P G, Thomas, Daffyd, Turner, E, van den Berg, J S P, Vanhooren, G, Venables, Graham, Wahlgren, Nils, Walker, S, Warlow, Charles, Zvan, Bojana, Bonati, Leo H, Gregson, John, Dobson, Joanna, McCabe, Dominick J H, Nederkoorn, Paul J, van der Worp, H Bart, de Borst, Gert J, Richards, Toby, Cleveland, Trevor, Müller, Mandy D, Wolff, Thomas, Engelter, Stefan T, Lyrer, Philippe A, and Brown, Martin M

Published
2018
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5. Can fenestrated EVAR be justified?

Author

SCURR, J R, BRENNAN, J A, GILLING-SMITH, G L, GOULD, D, HARRIS, P L, VALLABHANENI, S R, WEST, J, and McWILLIAMS, R G

Published
2007

15. Restenosis and risk of stroke after stenting or endarterectomy for symptomatic carotid stenosis in the International Carotid Stenting Study (ICSS): secondary analysis of a randomised trial

Author

Bonati, Leo H, primary, Gregson, John, additional, Dobson, Joanna, additional, McCabe, Dominick J H, additional, Nederkoorn, Paul J, additional, van der Worp, H Bart, additional, de Borst, Gert J, additional, Richards, Toby, additional, Cleveland, Trevor, additional, Müller, Mandy D, additional, Wolff, Thomas, additional, Engelter, Stefan T, additional, Lyrer, Philippe A, additional, Brown, Martin M, additional, Algra, Ale, additional, Bakke, S J, additional, Baldwin, Neil, additional, Beard, Jonathan, additional, Bladin, Christopher, additional, Bland, J Martin, additional, Boiten, J, additional, Bosiers, Mark, additional, Bradbury, A W, additional, Canovas, David, additional, Chambers, Brian, additional, Chamorro, Angel, additional, Chataway, Jonathan, additional, Clifton, Andrew, additional, Collins, Rory, additional, Coward, Lucy, additional, Czlonkowska, Anna, additional, Davis, Stephen, additional, DeJaegher, L, additional, Doig, David, additional, Dorman, Paul, additional, Ederle, Jörg, additional, Featherstone, Roland F, additional, Ferro, Jose M, additional, Gaines, Peter, additional, Gilling-Smith, G, additional, Goertler, M, additional, Gottsäter, A, additional, Hacke, Werne, additional, Halliday, Alison, additional, Hamilton, George, additional, Hendriks, J M H, additional, Hill, Michael, additional, Kapelle, L Jaap, additional, Kaste, Markku, additional, Kennedy, Fiona, additional, Konrad, P, additional, Kool, LJS, additional, Koudstaal, Peter J, additional, Malik, I, additional, Markus, Hugh, additional, Martin, Peter, additional, Mas, Jean-Louis, additional, McCollum, Charles, additional, McGahan, T, additional, McGuire, A J, additional, Michel, Philippe, additional, Molyneux, Andrew, additional, Moroney, Jane, additional, Mosch, A, additional, Moss, J, additional, Naylor, Ross, additional, Peeters, A, additional, Roy, D, additional, Schultz, David, additional, Seriki, D M, additional, Shinton, R A, additional, Sidhu, Paul, additional, Stewart, J, additional, Subramanian, G, additional, Sztajzel, R, additional, Than, P G, additional, Thomas, Daffyd, additional, Turner, E, additional, van den Berg, J S P, additional, Vanhooren, G, additional, Venables, Graham, additional, Wahlgren, Nils, additional, Walker, S, additional, Warlow, Charles, additional, and Zvan, Bojana, additional

Published
2018
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17. Carotid artery stenting compared with endarterectomy in patients with symptomatic carotid stenosis (International Carotid Stenting Study): an interim analysis of a randomised controlled trial

Author

Ederle, J., Dobson, J., Featherstone, R. L., Bonati, L. H., Worp, H. B., Borst, G. J., Lo, T. H., Gaines, P., Dorman, P. J., Macdonald, S., Lyrer, P. A., Hendriks, J. M., Mccollum, C., Nederkoorn, P. J., Brown, M. M., Algra, A., Bamford, J., Beard, J., Bland, M., Bradbury, A. W., Clifton, A., Hacke, W., Halliday, A., Malik, I., Mas, J. L., Mcguire, A. J., Sidhu, P., Venables, G., Bradbury, A., Collins, R., Molynewc, A., Naylor, R., Warlow, C., Ferro, J. M., Thomas, D., Coward, L., Featherstone, R. F., Tindall, H., Mccabe, D. J. H., Wallis, A., Brooks, M., Chambers, B., Chan, A., Chu, P., Clark, D., Dewey, H., Donnan, G., Fell, G., Hoare, M., Molan, M., Roberts, A., Roberts, N., Beiles, B., Bladin, C., Clifford, C., Grigg, M., New, G., Bell, R., Bower, S., Chong, W., Holt, M., Saunder, A., Than, P. G., Gett, S., Leggett, D., Mcgahan, T., Quinn, J., Ray, M., Wong, A., Woodruff, P., Foreman, R., Schultz, D., Scroop, R., Stanley, B., Allard, B., Atkinson, N., Cambell, W., Davies, S., Field, P., Milne, P., Mitchell, P., Tress, B., Yan, B., Beasley, A., Dunbabin, D., Stary, D., Walker, S., Cras, P., D Archambeau, O., Hendriks, J. M. H., Schil, P., Bosiers, M., Deloose, K., Buggenhout, E., Letter, J., Devos, V., Ghekiere, J., Vanhooren, G., Astarci, P., Hammer, F., Lacroix, V., Peters, A., Verhelst, R., Dejaegher, L., Peeters, A., Verbist, J., Blair, J. F., Caron, J. L., Daneault, M., Giroux, M. F., Guilbert, F., Lanthier, S., Lebrun, L. H., Oliva, V., Raymond, J., Roy, D., Soulez, G., Weill, A., Hill, M., Hu, W., Hudion, M., Morrish, W., Sutherland, G., Wong, J., Alback, A., Harno, H., Ijas, P., Kaste, M., Lepantalo, M., Mustanoja, S., Paananen, T., Porras, M., Puutala, J., Railo, M., Sairanen, T., Soinne, L., Vehmas, A., Vikatmaa, P., Goertler, M., Halloul, Z., Skalej, M., Brennan, P., Kelly, C., Leahy, A., Moroney, J., Thornton, J., Koelemay, M. J. W., Reekers, J. A. A., Roos, Y. B. W. E. M., Koudstaal, P. J., Pattynama, P. M. T., Lugt, A., Dijk, L. C., Sambeek, L. R. H. M., Urk, H., Verhargen, H. J. M., Bruininckx, C. M. A., Bruijn, S. F., Keunen, R., Knippenberg, B., Mosch, A., Treurniet, F., Dijk, L., Overhagen, H., Wever, J., Beer, F. C., Den Berg, J. S. P., Hasselt, B. A. A. M., Zeilstra, D. J., Boiten, J., Otterloo, J. C. A. D., Vries, A. C., Nieholt, G. J. L. A., Kallen, B. F. W., Blankensteijn, J. D., Leeuw, F. E., Kool, L. J. S., Vliet, J. A., Kort, G. A. P., Kapelle, L. J., Mali, W. P. T. M., Moll, F., Verhagen, H., Barber, P. A., Bourchier, R., Hill, A., Holden, A., Stewart, J., Bakke, S. J., Krohg-Sorensen, K., Skjelland, M., Tennoe, B., Bialek, P., Biejat, Z., Czepiel, W., Czlonkowska, A., Dowzenko, A., Jedrzejewska, J., Kobayashi, A., Lelek, M., Polanski, J., Kirbis, J., Milosevic, Z., Zvan, B., Vasco, J., Blasco, J., Chamorro, A., Macho, J., Obach, V., Riambau, V., San Roman, L., Branera, J., Canovas, D., Estela, J., Gaibar, A. G., Perendreu, J., Bjorses, K., Gottsater, A., Ivancev, K., Maetzsch, T., Sonesson, B., Berg, B., Delle, M., Formgren, J., Gillgren, P., Kall, T. B., Konrad, P., Nyman, N., Takolander, R., Andersson, T., Malmstedt, A., Soderman, M., Wahlgren, C., Wahlgren, N., Binaghi, S., Hirt, L., Michel, P., Ruchat, P., Engelter, S. T., Fluri, F., Guerke, L., Jacob, A. L., Kirsch, E., Radue, E. W., Stierli, P., Wasner, M., Wetznel, S., Bonvin, C., Kalangos, A., Lovblad, K., Murith, N., Ruefenacht, D., Sztajzel, R., Higgins, N., Kirkpatrick, P. J., Martin, P., Adam, D., Bell, J., Crowe, P., Gannon, M., Henderson, M. J., Sandler, D., Shinton, R. A., Scriven, J. M., Wilmink, T., D Souza, S., Egun, A., Guta, R., Punekar, S., Seriki, D. M., Thomson, G., Brennan, A., Enevoldson, T. P., Gilling-Smith, G., Gould, D. A., Harris, P. L., Mcwilliams, R. G., Nasser, H. C., White, R., Prakash, K. G., Serracino-Inglott, F., Subramanian, G., Smyth, J. V., Walker, M. G., Clarke, M., Davis, M., Dixit, S. A., Dolman, P., Dyker, A., Ford, G., Golkar, A., Jackson, R., Jayakrishnan, V., Lambert, D., Lees, T., Louw, S., Mendelow, A. D., Rodgers, H., Rose, J., Stansby, G., Wyatt, M., Baker, T., Baldwin, N., Jones, L., Mitchell, D., Munro, E., Thornton, M., Baker, D., Davis, N., Hamilton, G., Mccabe, D., Platts, A., Tibballs, J., Cleveland, T., Dodd, D., Lonsdale, R., Nair, R., Nassef, A., Nawaz, S., Belli, A., Cloud, G., Markus, H., Mcfarland, R., Morgan, R., Pereira, A., Thompson, A., Chataway, J., Cheshire, N., Gibbs, R., Hammady, M., Jenkins, M., Wolfe, J., Adiseshiah, M., Bishop, C., Brew, S., Brookes, J., Jager, R., Kitchen, N., Ashleigh, R., Butterfield, S., Gamble, G. E., Nasim, A., O Neill, P., Edwards, R. D., Lees, K. R., Mackay, A. J., Moss, J., Rogers, P., Developmental Genetics, International Carotid Stenting Study, ACS - Amsterdam Cardiovascular Sciences, Neurology, Surgery, Radiology and Nuclear Medicine, and ANS - Amsterdam Neuroscience

Subjects
Male, medicine.medical_specialty, SURGERY, medicine.medical_treatment, Carotid endarterectomy, 030204 cardiovascular system & hematology, Neuroinformatics [DCN 3], 03 medical and health sciences, 0302 clinical medicine, Risk Factors, Angioplasty, medicine, Humans, Carotid Stenosis, cardiovascular diseases, ANGIOPLASTY, Stroke, Endarterectomy, Aged, Endarterectomy, Carotid, Intention-to-treat analysis, Cardiovascular diseases [NCEBP 14], business.industry, Stent, General Medicine, Interim analysis, medicine.disease, 3. Good health, Surgery, Female, Stents, Human medicine, Carotid stenting, business, 030217 neurology & neurosurgery, Angioplasty, Balloon
Abstract

Contains fulltext : 88112.pdf (Publisher’s version ) (Closed access) BACKGROUND: Stents are an alternative treatment to carotid endarterectomy for symptomatic carotid stenosis, but previous trials have not established equivalent safety and efficacy. We compared the safety of carotid artery stenting with that of carotid endarterectomy. METHODS: The International Carotid Stenting Study (ICSS) is a multicentre, international, randomised controlled trial with blinded adjudication of outcomes. Patients with recently symptomatic carotid artery stenosis were randomly assigned in a 1:1 ratio to receive carotid artery stenting or carotid endarterectomy. Randomisation was by telephone call or fax to a central computerised service and was stratified by centre with minimisation for sex, age, contralateral occlusion, and side of the randomised artery. Patients and investigators were not masked to treatment assignment. Patients were followed up by independent clinicians not directly involved in delivering the randomised treatment. The primary outcome measure of the trial is the 3-year rate of fatal or disabling stroke in any territory, which has not been analysed yet. The main outcome measure for the interim safety analysis was the 120-day rate of stroke, death, or procedural myocardial infarction. Analysis was by intention to treat (ITT). This study is registered, number ISRCTN25337470. FINDINGS: The trial enrolled 1713 patients (stenting group, n=855; endarterectomy group, n=858). Two patients in the stenting group and one in the endarterectomy group withdrew immediately after randomisation, and were not included in the ITT analysis. Between randomisation and 120 days, there were 34 (Kaplan-Meier estimate 4.0%) events of disabling stroke or death in the stenting group compared with 27 (3.2%) events in the endarterectomy group (hazard ratio [HR] 1.28, 95% CI 0.77-2.11). The incidence of stroke, death, or procedural myocardial infarction was 8.5% in the stenting group compared with 5.2% in the endarterectomy group (72 vs 44 events; HR 1.69, 1.16-2.45, p=0.006). Risks of any stroke (65 vs 35 events; HR 1.92, 1.27-2.89) and all-cause death (19 vs seven events; HR 2.76, 1.16-6.56) were higher in the stenting group than in the endarterectomy group. Three procedural myocardial infarctions were recorded in the stenting group, all of which were fatal, compared with four, all non-fatal, in the endarterectomy group. There was one event of cranial nerve palsy in the stenting group compared with 45 in the endarterectomy group. There were also fewer haematomas of any severity in the stenting group than in the endarterectomy group (31 vs 50 events; p=0.0197). INTERPRETATION: Completion of long-term follow-up is needed to establish the efficacy of carotid artery stenting compared with endarterectomy. In the meantime, carotid endarterectomy should remain the treatment of choice for patients suitable for surgery. FUNDING: Medical Research Council, the Stroke Association, Sanofi-Synthelabo, European Union.

Published
2010
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18. Length of carotid stenosis predicts peri-procedural stroke or death and restenosis in patients randomized to endovascular treatment or endarterectomy

Author

Bonati, L., Ederle, J., Dobson, J., Engelter, S., Featherstone, R., Gaines, P., Beard, J., Venables, G., Markus, H., Clifton, A., Sandercock, P., Brown, M., Bland, J., Buckenham, T., Taylor, R., Tognoni, G., Warlow, C., Bleakley, T., Colquhoun, D., Coward, L., Crawley, F., Dobinson, P., Holder, S., McCabe, D., Pereira, A., Rogers, J., Silver, L., Burrett, J., Crowther, J., Dobson, M., Hafner, B., Heineman, J., Hope, C., Knight, S., Naughten, A., Radley, A., Richards, S., Smith, D., Wenzel, S., Harrison, M., Ferro, J., Bladin, C., Donnan, G., Fell, G., Fitt, G., Royle, J., Davis, S., Gerraty, R., Mitchell, P., Goodman, M., Hankey, G., Khangure, M., Lawrence-Brown, Michael, Linto, J., McAuliffe, W., Prendergast, F., Siennarine, K., Stewart-Wynne, E., Grahovac, S., Morrish, W., Pageau, N., E Pringle, C., Richard, D., Malms, J., Reiher, L., Siebler, M., Belloni, G., Porta, M., Chamorro, A., Vila, N., Riambau, V., Vazquez, F., Boza, F., Garcia Rodríguez, J., Gil Peralta, A., González, A., González Marcos, J., Mayol Deya, A., Rauno, J., Kirsch, E., Lyrer, P., Rem, J., Bogousslavsky, J., Uske, A., Cleveland, T., Doyle, C., Sivaguru, A., Leopold, P., Loosemore, T., Enevoldson, T., Gilling-Smith, G., Harris, P., Nixon, T., Baskerville, P., Cox, T., Fraser, S., Jeffrey, M., Molloy, J., Butler, P., Dick, J., Frankel, F., Bradbury, A., Collie, D., Murie, J., Ruckley, C., Schultz, D., Sellar, R., Wardlaw, J., Ashleigh, R., McCollum, C., O'Neill, P., Gholkar, A., Mendelow, A., Walls, T., Angus-Leppan, H., Halpin, S., Hughes, J., Lane, I., Wiles, M., Wood, A., Birch, P., Earnshaw, J., Fuller, G., Heather, B., Poskitt, K., Tottle, A., Hope, D., Jefferson, D., McConachie, N., Duddy, M., Heafield, M., Vohra, R., Bonati, L., Ederle, J., Dobson, J., Engelter, S., Featherstone, R., Gaines, P., Beard, J., Venables, G., Markus, H., Clifton, A., Sandercock, P., Brown, M., Bland, J., Buckenham, T., Taylor, R., Tognoni, G., Warlow, C., Bleakley, T., Colquhoun, D., Coward, L., Crawley, F., Dobinson, P., Holder, S., McCabe, D., Pereira, A., Rogers, J., Silver, L., Burrett, J., Crowther, J., Dobson, M., Hafner, B., Heineman, J., Hope, C., Knight, S., Naughten, A., Radley, A., Richards, S., Smith, D., Wenzel, S., Harrison, M., Ferro, J., Bladin, C., Donnan, G., Fell, G., Fitt, G., Royle, J., Davis, S., Gerraty, R., Mitchell, P., Goodman, M., Hankey, G., Khangure, M., Lawrence-Brown, Michael, Linto, J., McAuliffe, W., Prendergast, F., Siennarine, K., Stewart-Wynne, E., Grahovac, S., Morrish, W., Pageau, N., E Pringle, C., Richard, D., Malms, J., Reiher, L., Siebler, M., Belloni, G., Porta, M., Chamorro, A., Vila, N., Riambau, V., Vazquez, F., Boza, F., Garcia Rodríguez, J., Gil Peralta, A., González, A., González Marcos, J., Mayol Deya, A., Rauno, J., Kirsch, E., Lyrer, P., Rem, J., Bogousslavsky, J., Uske, A., Cleveland, T., Doyle, C., Sivaguru, A., Leopold, P., Loosemore, T., Enevoldson, T., Gilling-Smith, G., Harris, P., Nixon, T., Baskerville, P., Cox, T., Fraser, S., Jeffrey, M., Molloy, J., Butler, P., Dick, J., Frankel, F., Bradbury, A., Collie, D., Murie, J., Ruckley, C., Schultz, D., Sellar, R., Wardlaw, J., Ashleigh, R., McCollum, C., O'Neill, P., Gholkar, A., Mendelow, A., Walls, T., Angus-Leppan, H., Halpin, S., Hughes, J., Lane, I., Wiles, M., Wood, A., Birch, P., Earnshaw, J., Fuller, G., Heather, B., Poskitt, K., Tottle, A., Hope, D., Jefferson, D., McConachie, N., Duddy, M., Heafield, M., and Vohra, R.

Abstract

Background: The anatomy of carotid stenosis may influence the outcome of endovascular treatment or carotid endarterectomy. Whether anatomy favors one treatment over the other in terms of safety or efficacy has not been investigated in randomized trials. Methods: In 414 patients with mostly symptomatic carotid stenosis randomized to endovascular treatment (angioplasty or stenting; n=213) or carotid endarterectomy (n=211) in the Carotid and Vertebral Artery Transluminal Angioplasty Study (CAVATAS), the degree and length of stenosis and plaque surface irregularity were assessed on baseline intraarterial angiography. Outcome measures were stroke or death occurring between randomization and 30 days after treatment, and ipsilateral stroke and restenosis =50% during follow-up. Results: Carotid stenosis longer than 0·65 times the common carotid artery diameter was associated with increased risk of peri-procedural stroke or death after both endovascular treatment [odds ratio 2·79 (1·17-6·65), P=0·02] and carotid endarterectomy [2·43 (1·03-5·73), P=0·04], and with increased long-term risk of restenosis in endovascular treatment [hazard ratio 1·68 (1·12-2·53), P=0·01]. The excess in restenosis after endovascular treatment compared with carotid endarterectomy was significantly greater in patients with long stenosis than with short stenosis at baseline (interaction P=0·003). Results remained significant after multivariate adjustment. No associations were found for degree of stenosis and plaque surface. Conclusions: Increasing stenosis length is an independent risk factor for peri-procedural stroke or death in endovascular treatment and carotid endarterectomy, without favoring one treatment over the other. However, the excess restenosis rate after endovascular treatment compared with carotid endarterectomy increases with longer stenosis at baseline. Stenosis length merits further investigation in carotid revascularisation trials. © 2013 The Authors. International Journal of Strok

Published
2014

19. Carotid artery stenting compared with endarterectomy in patients with symptomatic carotid stenosis (International Carotid Stenting Study): an interim analysis of a randomised controlled trial.

Author

Giroux M.-F., Prakash K.G., Serracino-Inglott F., Subramanian G., Symth J.V., Walker M.G., Clarke M., Davis M., Dixit S.A., Dorman P., Dyker A., Ford G., Golkar A., Jackson R., Jayakrishnan V., Lambert D., Lees T., Louw S., Mendelow A.D., Rodgers H., Rose J., Stansby G., Wyatt M., Baker T., Baldwin N., Jones L., Mitchell D., Munro E., Thornton M., Baker D., Davis N., Hamilton G., Platts A., Tibballs J., Beard J., Cleveland T., Dodd D., Gaines P., Lonsdale R., Nair R., Nassef A., Nawaz S., Venables G., Belli A., Clifton A., Cloud G., Halliday A., Markus H., McFarland R., Morgan R., Pereira A., Thompson A., Chataway J., Cheshire N., Gibbs R., Hammady M., Jenkins M., Malik I., Wolfe J., Adiseshiah M., Bishop C., Brew S., Brookes J., Jager R., Kitchen N., Ashleigh R., Butterfield S., Gamble G.E., Nasim A., O'Neill P., Wong J., Edwards R.D., Lees K.R., MacKay A.J., Moss J., Rogers P., Ederle J., Dobson J., Featherstone R.L., Bonati L.H., van der Worp H.B., de Borst G.J., Hauw Lo T., Dorman P.J., Macdonald S., Lyrer P.A., McCollum C., Nederkoorn P.J., Brown M.M., Algra A., Bamford J., Bland M., Hacke W., Mas J.L., McGuire A.J., Sidhu P., Bradbury A., Collins R., Molyneux A., Naylor R., Warlow C., Ferro M., Thomas D., Featherstone R.F., Tindall H., McCabe D., Wallis A., Coward L., Brooks M., Chambers B., Chan A., Chu P., Clark D., Dewey H., Donnan G., Fell G., Hoare M., Molan M., Roberts A., Roberts N., Beiles B., Bladin C., Clifford C., Grigg M., New G., Bell R., Bower S., Chong W., Holt M., Saunder A., Than P.G., Gett S., Leggett D., McGahan T., Quinn J., Ray M., Wong A., Woodruff P., Foreman R., Schultz D., Scroop R., Stanley B., Allard B., Atkinson N., Cambell W., Davies S., Field P., Milne P., Mitchell P., Tress B., Yan B., Beasley A., Dunbabin D., Stary D., Walker S., Cras P., d'Archambeau O., Hendriks J.M.H., Van Schil P., Bosiers M., Deloose K., van Buggenhout E., De Letter J., Devos V., Ghekiere J., Vanhooren G., Astarci P., Hammer F., Lacroix V., Verhelst R., DeJaegher L., Peeters A., Verbist J., Blair J.-F., Caron J.L., Daneault N., Guilbert F., Lanthier S., Lebrun L.-H., Oliva V., Raymond J., Roy D., Soulez G., Weill A., Hill M., Hu W., Hudion M., Morrish W., Sutherland G., Alback A., Harno H., Ijas P., Kaste M., Lepantalo M., Mustanoja S., Paananen T., Porras M., Putaala J., Railo M., Sairanen T., Soinne L., Vehmas A., Vikatmaa P., Goertler M., Halloul Z., Skalej M., Brennan P., Kelly C., Leahy A., Moroney J., Thornton J., Koelemay M.J.W., Reekers J.A.A., Roos Y.B.W.E.M., Hendriks J.M., Koudstaal P.J., Pattynama P.M.T., van der Lugt A., van Dijk L.C., van Sambeek M.R.H.M., van Urk H., Verhagen H.J.M., Bruijninckx C.M.A., de Bruijn S.F., Keunen R., Knippenberg B., Mosch A., Treurniet F., van Dijk L., van Overhagen H., Wever J., de Beer F.C., van den Berg J.S.P., van Hasselt B.A.A.M., Zeilstra D.J., Boiten J., de Mol van Otterloo J.C.A., de Vries A.C., Lycklama a Nijeholt G.J., van der Kallen B.F.W., Blankensteijn J.D., De Leeuw F.E., Schultze Kool L.J., van der Vliet J.A., de Kort G.A.P., Kapelle L.J., Lo T.H., Mali W.P.T.M., Moll F., Verhagen H., Barber P.A., Bourchier R., Hill A., Holden A., Stewart J., Bakke S.J., Krohg-Sorensen K., Skjelland M., Tennoe B., Bialek P., Biejat Z., Czepiel W., Czlonkowska A., Dowzenko A., Jedrzejewska J., Kobayashi A., Lelek M., Polanski J., Kirbis J., Milosevic Z., Zvan B., Blasco J., Chamorro A., Macho J., Obach V., Riambau V., San Roman L., Branera J., Canovas D., Estela J., Gimenez Gaibar A., Perendreu J., Bjorses K., Gottsater A., Ivancev K., Maetzsch T., Sonesson B., Berg B., Delle M., Formgren J., Gillgren P., Kall T.-B., Konrad P., Nyman N., Takolander R., Andersson T., Malmstedt J., Soderman M., Wahlgren C., Wahlgren N., Binaghi S., Hirt L., Michel P., Ruchat P., Engelter S.T., Fluri F., Guerke L., Jacob A.L., Kirsch E., Radue E.-W., Stierli P., Wasner M., Wetzel S., Bonvin C., Kalangos A., Lovblad K., Murith N., Ruefenacht D., Sztajzel R., Higgins N., Kirkpatrick P.J., Martin P., Adam D., Bell J., Bradbury A.W., Crowe P., Gannon M., Henderson M.J., Sandler D., Shinton R.A., Scriven J.M., Wilmink T., D'Souza S., Egun A., Guta R., Punekar S., Seriki D.M., Thomson G., Brennan J.A., Enevoldson T.P., Gilling-Smith G., Gould D.A., Harris P.L., McWilliams R.G., Nasser H.-C., White R., Giroux M.-F., Prakash K.G., Serracino-Inglott F., Subramanian G., Symth J.V., Walker M.G., Clarke M., Davis M., Dixit S.A., Dorman P., Dyker A., Ford G., Golkar A., Jackson R., Jayakrishnan V., Lambert D., Lees T., Louw S., Mendelow A.D., Rodgers H., Rose J., Stansby G., Wyatt M., Baker T., Baldwin N., Jones L., Mitchell D., Munro E., Thornton M., Baker D., Davis N., Hamilton G., Platts A., Tibballs J., Beard J., Cleveland T., Dodd D., Gaines P., Lonsdale R., Nair R., Nassef A., Nawaz S., Venables G., Belli A., Clifton A., Cloud G., Halliday A., Markus H., McFarland R., Morgan R., Pereira A., Thompson A., Chataway J., Cheshire N., Gibbs R., Hammady M., Jenkins M., Malik I., Wolfe J., Adiseshiah M., Bishop C., Brew S., Brookes J., Jager R., Kitchen N., Ashleigh R., Butterfield S., Gamble G.E., Nasim A., O'Neill P., Wong J., Edwards R.D., Lees K.R., MacKay A.J., Moss J., Rogers P., Ederle J., Dobson J., Featherstone R.L., Bonati L.H., van der Worp H.B., de Borst G.J., Hauw Lo T., Dorman P.J., Macdonald S., Lyrer P.A., McCollum C., Nederkoorn P.J., Brown M.M., Algra A., Bamford J., Bland M., Hacke W., Mas J.L., McGuire A.J., Sidhu P., Bradbury A., Collins R., Molyneux A., Naylor R., Warlow C., Ferro M., Thomas D., Featherstone R.F., Tindall H., McCabe D., Wallis A., Coward L., Brooks M., Chambers B., Chan A., Chu P., Clark D., Dewey H., Donnan G., Fell G., Hoare M., Molan M., Roberts A., Roberts N., Beiles B., Bladin C., Clifford C., Grigg M., New G., Bell R., Bower S., Chong W., Holt M., Saunder A., Than P.G., Gett S., Leggett D., McGahan T., Quinn J., Ray M., Wong A., Woodruff P., Foreman R., Schultz D., Scroop R., Stanley B., Allard B., Atkinson N., Cambell W., Davies S., Field P., Milne P., Mitchell P., Tress B., Yan B., Beasley A., Dunbabin D., Stary D., Walker S., Cras P., d'Archambeau O., Hendriks J.M.H., Van Schil P., Bosiers M., Deloose K., van Buggenhout E., De Letter J., Devos V., Ghekiere J., Vanhooren G., Astarci P., Hammer F., Lacroix V., Verhelst R., DeJaegher L., Peeters A., Verbist J., Blair J.-F., Caron J.L., Daneault N., Guilbert F., Lanthier S., Lebrun L.-H., Oliva V., Raymond J., Roy D., Soulez G., Weill A., Hill M., Hu W., Hudion M., Morrish W., Sutherland G., Alback A., Harno H., Ijas P., Kaste M., Lepantalo M., Mustanoja S., Paananen T., Porras M., Putaala J., Railo M., Sairanen T., Soinne L., Vehmas A., Vikatmaa P., Goertler M., Halloul Z., Skalej M., Brennan P., Kelly C., Leahy A., Moroney J., Thornton J., Koelemay M.J.W., Reekers J.A.A., Roos Y.B.W.E.M., Hendriks J.M., Koudstaal P.J., Pattynama P.M.T., van der Lugt A., van Dijk L.C., van Sambeek M.R.H.M., van Urk H., Verhagen H.J.M., Bruijninckx C.M.A., de Bruijn S.F., Keunen R., Knippenberg B., Mosch A., Treurniet F., van Dijk L., van Overhagen H., Wever J., de Beer F.C., van den Berg J.S.P., van Hasselt B.A.A.M., Zeilstra D.J., Boiten J., de Mol van Otterloo J.C.A., de Vries A.C., Lycklama a Nijeholt G.J., van der Kallen B.F.W., Blankensteijn J.D., De Leeuw F.E., Schultze Kool L.J., van der Vliet J.A., de Kort G.A.P., Kapelle L.J., Lo T.H., Mali W.P.T.M., Moll F., Verhagen H., Barber P.A., Bourchier R., Hill A., Holden A., Stewart J., Bakke S.J., Krohg-Sorensen K., Skjelland M., Tennoe B., Bialek P., Biejat Z., Czepiel W., Czlonkowska A., Dowzenko A., Jedrzejewska J., Kobayashi A., Lelek M., Polanski J., Kirbis J., Milosevic Z., Zvan B., Blasco J., Chamorro A., Macho J., Obach V., Riambau V., San Roman L., Branera J., Canovas D., Estela J., Gimenez Gaibar A., Perendreu J., Bjorses K., Gottsater A., Ivancev K., Maetzsch T., Sonesson B., Berg B., Delle M., Formgren J., Gillgren P., Kall T.-B., Konrad P., Nyman N., Takolander R., Andersson T., Malmstedt J., Soderman M., Wahlgren C., Wahlgren N., Binaghi S., Hirt L., Michel P., Ruchat P., Engelter S.T., Fluri F., Guerke L., Jacob A.L., Kirsch E., Radue E.-W., Stierli P., Wasner M., Wetzel S., Bonvin C., Kalangos A., Lovblad K., Murith N., Ruefenacht D., Sztajzel R., Higgins N., Kirkpatrick P.J., Martin P., Adam D., Bell J., Bradbury A.W., Crowe P., Gannon M., Henderson M.J., Sandler D., Shinton R.A., Scriven J.M., Wilmink T., D'Souza S., Egun A., Guta R., Punekar S., Seriki D.M., Thomson G., Brennan J.A., Enevoldson T.P., Gilling-Smith G., Gould D.A., Harris P.L., McWilliams R.G., Nasser H.-C., and White R.

Abstract

Background: Stents are an alternative treatment to carotid endarterectomy for symptomatic carotid stenosis, but previous trials have not established equivalent safety and efficacy. We compared the safety of carotid artery stenting with that of carotid endarterectomy. Method(s): The International Carotid Stenting Study (ICSS) is a multicentre, international, randomised controlled trial with blinded adjudication of outcomes. Patients with recently symptomatic carotid artery stenosis were randomly assigned in a 1:1 ratio to receive carotid artery stenting or carotid endarterectomy. Randomisation was by telephone call or fax to a central computerised service and was stratified by centre with minimisation for sex, age, contralateral occlusion, and side of the randomised artery. Patients and investigators were not masked to treatment assignment. Patients were followed up by independent clinicians not directly involved in delivering the randomised treatment. The primary outcome measure of the trial is the 3-year rate of fatal or disabling stroke in any territory, which has not been analysed yet. The main outcome measure for the interim safety analysis was the 120-day rate of stroke, death, or procedural myocardial infarction. Analysis was by intention to treat (ITT). This study is registered, number ISRCTN25337470. Finding(s): The trial enrolled 1713 patients (stenting group, n=855; endarterectomy group, n=858). Two patients in the stenting group and one in the endarterectomy group withdrew immediately after randomisation, and were not included in the ITT analysis. Between randomisation and 120 days, there were 34 (Kaplan-Meier estimate 4.0%) events of disabling stroke or death in the stenting group compared with 27 (3.2%) events in the endarterectomy group (hazard ratio [HR] 1.28, 95% CI 0.77-2.11). The incidence of stroke, death, or procedural myocardial infarction was 8.5% in the stenting group compared with 5.2% in the endarterectomy group (72 vs 44 events; HR 1.69, 1.

Published
2010

20. Carotid artery stenting compared with endarterectomy in patients with symptomatic carotid stenosis (International Carotid Stenting Study): an interim analysis of a randomised controlled trial

Author

Ederle, Jörg, Dobson, Joanna, Featherstone, Roland L., Bonati, Leo H., van der Worp, H. Bart, de Borst, Gert J., Hauw Lo, T., Gaines, Peter, Dorman, Paul J., Macdonald, Sumaira, Lyrer, Philippe A., Hendriks, Johanna M., McCollum, Charles, Nederkoorn, Paul J., Brown, Martin M., Algra, A., Bamford, J., Bland, M., Hacke, W., Mas, J.L., McGuire, A.J., Sidhu, P., Bradbury, A., Collins, R., Molyneux, A., Naylor, R., Warlow, C., Ferro, M., Thomas, D., Featherstone, R.F., Tindall, H., McCabe, D.J.H., Wallis, A., Coward, L., Brooks, M., Chambers, B., Chan, A., Chu, P., Clark, D., Dewey, H., Donnan, G., Fell, G., Hoare, M., Molan, M., Roberts, A., Roberts, N., Beiles, B., Bladin, C., Clifford, C., Grigg, M., New, G., Bell, R., Bower, S., Chong, W., Holt, M., Saunder, A., Than, P.G., Gett, S., Leggett, D., McGahan, T., Quinn, J., Ray, M., Wong, A., Woodruff, P., Foreman, R., Schultz, D., Scroop, R., Stanley, B., Allard, B., Atkinson, N., Cambell, W., Davies, S., Field, P., Milne, P., Mitchell, P., Tress, B., Yan, B., Beasley, A., Dunbabin, D., Stary, D., Walker, S., Cras, P., d'Archambeau, O., Hendriks, J.M.H., Van Schil, P., Bosiers, M., Deloose, K., van Buggenhout, E., De Letter, J., Devos, V., Ghekiere, J., Vanhooren, G., Astarci, P., Hammer, F., Lacroix, V., Peeters, A., Verhelst, R., DeJaegher, L., Verbist, J., Blair, J.-F., Caron, J.L., Daneault, N., Giroux, M.-F., Guilbert, F., Lanthier, S., Lebrun, L.-H., Oliva, V., Raymond, J., Roy, D., Soulez, G., Weill, A., Hill, M., Hu, W., Hudion, M., Morrish, W., Sutherland, G., Wong, J., Albäck, A., Harno, H., Ijäs, P., Kaste, M., Lepäntalo, M., Mustanoja, S., Paananen, T., Porras, M., Putaala, J., Railo, M., Sairanen, T., Soinne, L., Vehmas, A., Vikatmaa, P., Goertler, M., Halloul, Z., Skalej, M., Brennan, P., Kelly, C., Leahy, A., Moroney, J., Thornton, J., Koelemay, M.J.W., Reekers, J.A.A., Roos, Y.B.W.E.M., Hendriks, J.M., Koudstaal, P.J., Pattynama, P.M.T., van der Lugt, A., van Dijk, L.C., van Sambeek, M.R.H.M., van Urk, H., Verhagen, H.J.M., Bruijninckx, C.M.A., de Bruijn, S.F., Keunen, R., Knippenberg, B., Mosch, A., Treurniet, F., van Dijk, L., van Overhagen, H., Wever, J., de Beer, F.C., van den Berg, J.S.P., van Hasselt, B.A.A.M., Zeilstra, D.J., Boiten, J., de Mol van Otterloo, J.C.A., de Vries, A.C., Lycklama a Nijeholt, G.J., van der Kallen, B.F.W., Blankensteijn, J.D., De Leeuw, F.E., Schultze Kool, L.J., van der Vliet, J.A., de Kort, G.A.P., Kapelle, L.J., Lo, T.H., Mali, W.P.T.M., Moll, F., Verhagen, H., Barber, P.A., Bourchier, R., Hill, A., Holden, A., Stewart, J., Bakke, S.J., Krohg-Sørensen, K., Skjelland, M., Tennøe, B., Bialek, P., Biejat, Z., Czepiel, W., Czlonkowska, A., Dowzenko, A., Jedrzejewska, J., Kobayashi, A., Lelek, M., Polanski, J., Kirbis, J., Milosevic, Z., Zvan, B., Blasco, J., Chamorro, A., Macho, J., Obach, V., Riambau, V., San Roman, L., Branera, J., Canovas, D., Estela, Jordi, Gimenez Gaibar, A., Perendreu, J., Björses, K., Gottsater, A., Ivancev, K., Maetzsch, T., Sonesson, B., Berg, B., Delle, M., Formgren, J., Gillgren, P., Kall, T.-B., Konrad, P., Nyman, N., Takolander, R., Andersson, T., Malmstedt, J., Soderman, M., Wahlgren, C., Wahlgren, N., Binaghi, S., Hirt, L., Michel, P., Ruchat, P., Engelter, S.T., Fluri, F., Guerke, L., Jacob, A.L., Kirsch, E., Radue, E.-W., Stierli, P., Wasner, M., Wetzel, S., Bonvin, C., Kalangos, A., Lovblad, K., Murith, N., Ruefenacht, D., Sztajzel, R., Higgins, N., Kirkpatrick, P.J., Martin, P., Adam, D., Bell, J., Bradbury, A.W., Crowe, P., Gannon, M., Henderson, M.J., Sandler, D., Shinton, R.A., Scriven, J.M., Wilmink, T., D'Souza, S., Egun, A., Guta, R., Punekar, S., Seriki, D.M., Thomson, G., Brennan, J.A., Enevoldson, T.P., Gilling-Smith, G., Gould, D.A., Harris, P.L., McWilliams, R.G., Nasser, H.-C., White, R., Prakash, K.G., Serracino-Inglott, F., Subramanian, G., Symth, J.V., Walker, M.G., Clarke, M., Davis, M., Dixit, S.A., Dorman, P., Dyker, A., Ford, G., Golkar, A., Jackson, R., Jayakrishnan, V., Lambert, D., Lees, T., Louw, S., Mendelow, A.D., Rodgers, H., Rose, J., Stansby, G., Wyatt, M., Baker, T., Baldwin, N., Jones, L., Mitchell, D., Munro, E., Thornton, M., Baker, D., Davis, N., Hamilton, G., McCabe, D., Platts, A., Tibballs, J., Beard, J., Cleveland, T., Dodd, D., Gaines, P., Lonsdale, R., Nair, R., Nassef, A., Nawaz, S., Venables, G., Belli, A., Clifton, A., Cloud, G., Halliday, A., Markus, H., McFarland, R., Morgan, R., Pereira, A., Thompson, A., Chataway, J., Cheshire, N., Gibbs, R., Hammady, M., Jenkins, M., Malik, I., Wolfe, J., Adiseshiah, M., Bishop, C., Brew, S., Brookes, J., Jäger, R., Kitchen, N., Ashleigh, R., Butterfield, S., Gamble, G.E., Nasim, A., O'Neill, P., Edwards, R.D., Lees, K.R., MacKay, A.J., Moss, J., Rogers, P., Ederle, Jörg, Dobson, Joanna, Featherstone, Roland L., Bonati, Leo H., van der Worp, H. Bart, de Borst, Gert J., Hauw Lo, T., Gaines, Peter, Dorman, Paul J., Macdonald, Sumaira, Lyrer, Philippe A., Hendriks, Johanna M., McCollum, Charles, Nederkoorn, Paul J., Brown, Martin M., Algra, A., Bamford, J., Bland, M., Hacke, W., Mas, J.L., McGuire, A.J., Sidhu, P., Bradbury, A., Collins, R., Molyneux, A., Naylor, R., Warlow, C., Ferro, M., Thomas, D., Featherstone, R.F., Tindall, H., McCabe, D.J.H., Wallis, A., Coward, L., Brooks, M., Chambers, B., Chan, A., Chu, P., Clark, D., Dewey, H., Donnan, G., Fell, G., Hoare, M., Molan, M., Roberts, A., Roberts, N., Beiles, B., Bladin, C., Clifford, C., Grigg, M., New, G., Bell, R., Bower, S., Chong, W., Holt, M., Saunder, A., Than, P.G., Gett, S., Leggett, D., McGahan, T., Quinn, J., Ray, M., Wong, A., Woodruff, P., Foreman, R., Schultz, D., Scroop, R., Stanley, B., Allard, B., Atkinson, N., Cambell, W., Davies, S., Field, P., Milne, P., Mitchell, P., Tress, B., Yan, B., Beasley, A., Dunbabin, D., Stary, D., Walker, S., Cras, P., d'Archambeau, O., Hendriks, J.M.H., Van Schil, P., Bosiers, M., Deloose, K., van Buggenhout, E., De Letter, J., Devos, V., Ghekiere, J., Vanhooren, G., Astarci, P., Hammer, F., Lacroix, V., Peeters, A., Verhelst, R., DeJaegher, L., Verbist, J., Blair, J.-F., Caron, J.L., Daneault, N., Giroux, M.-F., Guilbert, F., Lanthier, S., Lebrun, L.-H., Oliva, V., Raymond, J., Roy, D., Soulez, G., Weill, A., Hill, M., Hu, W., Hudion, M., Morrish, W., Sutherland, G., Wong, J., Albäck, A., Harno, H., Ijäs, P., Kaste, M., Lepäntalo, M., Mustanoja, S., Paananen, T., Porras, M., Putaala, J., Railo, M., Sairanen, T., Soinne, L., Vehmas, A., Vikatmaa, P., Goertler, M., Halloul, Z., Skalej, M., Brennan, P., Kelly, C., Leahy, A., Moroney, J., Thornton, J., Koelemay, M.J.W., Reekers, J.A.A., Roos, Y.B.W.E.M., Hendriks, J.M., Koudstaal, P.J., Pattynama, P.M.T., van der Lugt, A., van Dijk, L.C., van Sambeek, M.R.H.M., van Urk, H., Verhagen, H.J.M., Bruijninckx, C.M.A., de Bruijn, S.F., Keunen, R., Knippenberg, B., Mosch, A., Treurniet, F., van Dijk, L., van Overhagen, H., Wever, J., de Beer, F.C., van den Berg, J.S.P., van Hasselt, B.A.A.M., Zeilstra, D.J., Boiten, J., de Mol van Otterloo, J.C.A., de Vries, A.C., Lycklama a Nijeholt, G.J., van der Kallen, B.F.W., Blankensteijn, J.D., De Leeuw, F.E., Schultze Kool, L.J., van der Vliet, J.A., de Kort, G.A.P., Kapelle, L.J., Lo, T.H., Mali, W.P.T.M., Moll, F., Verhagen, H., Barber, P.A., Bourchier, R., Hill, A., Holden, A., Stewart, J., Bakke, S.J., Krohg-Sørensen, K., Skjelland, M., Tennøe, B., Bialek, P., Biejat, Z., Czepiel, W., Czlonkowska, A., Dowzenko, A., Jedrzejewska, J., Kobayashi, A., Lelek, M., Polanski, J., Kirbis, J., Milosevic, Z., Zvan, B., Blasco, J., Chamorro, A., Macho, J., Obach, V., Riambau, V., San Roman, L., Branera, J., Canovas, D., Estela, Jordi, Gimenez Gaibar, A., Perendreu, J., Björses, K., Gottsater, A., Ivancev, K., Maetzsch, T., Sonesson, B., Berg, B., Delle, M., Formgren, J., Gillgren, P., Kall, T.-B., Konrad, P., Nyman, N., Takolander, R., Andersson, T., Malmstedt, J., Soderman, M., Wahlgren, C., Wahlgren, N., Binaghi, S., Hirt, L., Michel, P., Ruchat, P., Engelter, S.T., Fluri, F., Guerke, L., Jacob, A.L., Kirsch, E., Radue, E.-W., Stierli, P., Wasner, M., Wetzel, S., Bonvin, C., Kalangos, A., Lovblad, K., Murith, N., Ruefenacht, D., Sztajzel, R., Higgins, N., Kirkpatrick, P.J., Martin, P., Adam, D., Bell, J., Bradbury, A.W., Crowe, P., Gannon, M., Henderson, M.J., Sandler, D., Shinton, R.A., Scriven, J.M., Wilmink, T., D'Souza, S., Egun, A., Guta, R., Punekar, S., Seriki, D.M., Thomson, G., Brennan, J.A., Enevoldson, T.P., Gilling-Smith, G., Gould, D.A., Harris, P.L., McWilliams, R.G., Nasser, H.-C., White, R., Prakash, K.G., Serracino-Inglott, F., Subramanian, G., Symth, J.V., Walker, M.G., Clarke, M., Davis, M., Dixit, S.A., Dorman, P., Dyker, A., Ford, G., Golkar, A., Jackson, R., Jayakrishnan, V., Lambert, D., Lees, T., Louw, S., Mendelow, A.D., Rodgers, H., Rose, J., Stansby, G., Wyatt, M., Baker, T., Baldwin, N., Jones, L., Mitchell, D., Munro, E., Thornton, M., Baker, D., Davis, N., Hamilton, G., McCabe, D., Platts, A., Tibballs, J., Beard, J., Cleveland, T., Dodd, D., Gaines, P., Lonsdale, R., Nair, R., Nassef, A., Nawaz, S., Venables, G., Belli, A., Clifton, A., Cloud, G., Halliday, A., Markus, H., McFarland, R., Morgan, R., Pereira, A., Thompson, A., Chataway, J., Cheshire, N., Gibbs, R., Hammady, M., Jenkins, M., Malik, I., Wolfe, J., Adiseshiah, M., Bishop, C., Brew, S., Brookes, J., Jäger, R., Kitchen, N., Ashleigh, R., Butterfield, S., Gamble, G.E., Nasim, A., O'Neill, P., Edwards, R.D., Lees, K.R., MacKay, A.J., Moss, J., and Rogers, P.

Abstract

Background: Stents are an alternative treatment to carotid endarterectomy for symptomatic carotid stenosis, but previous trials have not established equivalent safety and efficacy. We compared the safety of carotid artery stenting with that of carotid endarterectomy. Methods: The International Carotid Stenting Study (ICSS) is a multicentre, international, randomised controlled trial with blinded adjudication of outcomes. Patients with recently symptomatic carotid artery stenosis were randomly assigned in a 1:1 ratio to receive carotid artery stenting or carotid endarterectomy. Randomisation was by telephone call or fax to a central computerised service and was stratified by centre with minimisation for sex, age, contralateral occlusion, and side of the randomised artery. Patients and investigators were not masked to treatment assignment. Patients were followed up by independent clinicians not directly involved in delivering the randomised treatment. The primary outcome measure of the trial is the 3-year rate of fatal or disabling stroke in any territory, which has not been analysed yet. The main outcome measure for the interim safety analysis was the 120-day rate of stroke, death, or procedural myocardial infarction. Analysis was by intention to treat (ITT). This study is registered, number ISRCTN25337470. Findings: The trial enrolled 1713 patients (stenting group, n=855; endarterectomy group, n=858). Two patients in the stenting group and one in the endarterectomy group withdrew immediately after randomisation, and were not included in the ITT analysis. Between randomisation and 120 days, there were 34 (Kaplan-Meier estimate 4·0%) events of disabling stroke or death in the stenting group compared with 27 (3·2%) events in the endarterectomy group (hazard ratio [HR] 1·28, 95% CI 0·77-2·11). The incidence of stroke, death, or procedural myocardial infarction was 8·5% in the stenting group compared with 5·2% in the endarterectomy group (72 vs 44 events; HR 1·69, 1·16-2

Published
2010

32. Harnessing Haemodynamic Forces for the Suppression of Anastomotic Intimal Hyperplasia: the Rationale for Precuffed Grafts

Author

Fisher, R. K., How, T. V., Toonder, I. M., Hoedt, M. T. C., Brennan, J. A., Gilling-Smith, G. L., and Harris, P. L.

Abstract

Objectives standardisation of cuff geometry by manufacturing prosthetic precuffed grafts (PCG) theoretically optimises haemodynamic forces. This study was designed in order to determine whether these beneficial flow patterns are replicated

Published
2001
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34. Carotid artery stenting compared with endarterectomy in patients with symptomatic carotid stenosis (International Carotid Stenting Study): an interim analysis of a randomised controlled trial

Author

Ederle, J, Dobson, J, Featherstone, RL, Bonati, LH, van der Worp, HB, de Borst, GJ, Lo, TH, Gaines, P, Dorman, PJ, Macdonald, S, Lyrer, PA, Hendriks, JM, McCollum, C, Nederkoorn, PJ, Brown, MM, Algra, A, Bamford, J, Beard, J, Bland, M, Bradbury, AW, Clifton, A, Hacke, W, Halliday, A, Malik, I, Mas, JL, McGuire, AJ, Sidhu, P, Venables, G, Bradbury, A, Collins, R, Molynewc, A, Naylor, R, Warlow, C, Ferro, JM, Thomas, D, Coward, L, Featherstone, RF, Tindall, H, McCabe, DJH, Wallis, A, Brooks, M, Chambers, B, Chan, A, Chu, P, Clark, D, Dewey, H, Donnan, G, Fell, G, Hoare, M, Molan, M, Roberts, A, Roberts, N, Beiles, B, Bladin, C, Clifford, C, Grigg, M, New, G, Bell, R, Bower, S, Chong, W, Holt, M, Saunder, A, Than, PG, Gett, S, Leggett, D, McGahan, T, Quinn, J, Ray, M, Wong, A, Woodruff, P, Foreman, R, Schultz, D, Scroop, R, Stanley, B, Allard, B, Atkinson, N, Cambell, W, Davies, S, Field, P, Milne, P, Mitchell, P, Tress, B, Yan, B, Beasley, A, Dunbabin, D, Stary, D, Walker, S, Cras, P, d'Archambeau, O, Hendriks, JMH, Van Schil, P, Bosiers, M, Deloose, K, van Buggenhout, E, De Letter, J, Devos, V, Ghekiere, J, Vanhooren, G, Astarci, P, Hammer, F, Lacroix, V, Peeters, A, Verhelst, R, DeJaegher, L, Verbist, J, Blair, J-F, Caron, JL, Daneault, N, Giroux, M-F, Guilbert, F, Lanthier, S, Lebrun, L-H, Oliva, V, Raymond, J, Roy, D, Soulez, G, Weill, A, Hill, M, Hu, W, Hudion, M, Morrish, W, Sutherland, G, Wong, J, Alback, A, Harno, H, Ijas, P, Kaste, M, Lepantalo, M, Mustanoja, S, Paananen, T, Porras, M, Putaala, J, Railo, M, Sairanen, T, Soinne, L, Vehmas, A, Vikatmaa, P, Goertler, M, Halloul, Z, Skalej, M, Brennan, P, Kelly, C, Leahy, A, Moroney, J, Thornton, J, Koelemay, MJW, Reekers, JAA, Roos, YBWEM, Koudstaal, PJ, Pattynama, PMT, van der Lugt, A, van Dijk, LC, van Sambeek, MRHM, van Urk, H, Verhagen, HJM, Bruininckx, CMA, de Bruijn, SF, Keunen, R, Knippenberg, B, Mosch, A, Treurniet, F, van Dijk, L, van Overhagen, H, Wever, J, de Beer, FC, van den Berg, JSP, van Hasselt, BAAM, Zeilstra, DJ, Boiten, J, van Otterloo, JCADM, de Vries, AC, Nieholt, GJLA, van der Kallen, BFW, Blankensteijn, JD, De Leeuw, FE, Kool, LJS, van der Vliet, JA, de Kort, GAP, Kapelle, LJ, Mali, WPTM, Moll, F, Verhagen, H, Barber, PA, Bourchier, R, Hill, A, Holden, A, Stewart, J, Bakke, SJ, Krohg-Sorensen, K, Skjelland, M, Tennoe, B, Bialek, P, Biejat, Z, Czepiel, W, Czlonkowska, A, Dowzenko, A, Jedrzejewska, J, Kobayashi, A, Lelek, M, Polanski, J, Kirbis, J, Milosevic, Z, Zvan, B, Blasco, J, Chamorro, A, Macho, J, Obach, V, Riambau, V, San Roman, L, Branera, J, Canovas, D, Estela, J, Gimenez Gaibar, A, Perendreu, J, Bjorses, K, Gottsater, A, Ivancev, K, Maetzsch, T, Sonesson, B, Berg, B, Delle, M, Formgren, J, Gillgren, P, Kall, T-B, Konrad, P, Nyman, N, Takolander, R, Andersson, T, Malmstedt, J, Soderman, M, Wahlgren, C, Wahlgren, N, Binaghi, S, Hirt, L, Michel, P, Ruchat, P, Engelter, ST, Fluri, F, Guerke, L, Jacob, AL, Kirsch, E, Radue, E-W, Stierli, P, Wasner, M, Wetzel, S, Bonvin, C, Kalangos, A, Lovblad, K, Murith, N, Ruefenacht, D, Sztajzel, R, Higgins, N, Kirkpatrick, PJ, Martin, P, Adam, D, Bell, J, Crowe, P, Gannon, M, Henderson, MJ, Sandler, D, Shinton, RA, Scriven, JM, Wilmink, T, D'Souza, S, Egun, A, Guta, R, Punekar, S, Seriki, DM, Thomson, G, Brennan, A, Enevoldson, TP, Gilling-Smith, G, Gould, DA, Harris, PL, McWilliams, RG, Nasser, H-C, White, R, Prakash, KG, Serracino-Inglott, F, Subramanian, G, Symth, JV, Walker, MG, Clarke, M, Davis, M, Dixit, SA, Dolman, P, Dyker, A, Ford, G, Golkar, A, Jackson, R, Jayakrishnan, V, Lambert, D, Lees, T, Louw, S, Mendelow, AD, Rodgers, H, Rose, J, Stansby, G, Wyatt, M, Baker, T, Baldwin, N, Jones, L, Mitchell, D, Munro, E, Thornton, M, Baker, D, Davis, N, Hamilton, G, McCabe, D, Platts, A, Tibballs, J, Cleveland, T, Dodd, D, Lonsdale, R, Nair, R, Nassef, A, Nawaz, S, Belli, A, Cloud, G, Markus, H, McFarland, R, Morgan, R, Pereira, A, Thompson, A, Chataway, J, Cheshire, N, Gibbs, R, Hammady, M, Jenkins, M, Wolfe, J, Adiseshiah, M, Bishop, C, Brew, S, Brookes, J, Jaeger, R, Kitchen, N, Ashleigh, R, Butterfield, S, Gamble, GE, Nasim, A, O'Neill, P, Edwards, RD, Lees, KR, MacKay, AJ, Moss, J, Rogers, P, Ederle, J, Dobson, J, Featherstone, RL, Bonati, LH, van der Worp, HB, de Borst, GJ, Lo, TH, Gaines, P, Dorman, PJ, Macdonald, S, Lyrer, PA, Hendriks, JM, McCollum, C, Nederkoorn, PJ, Brown, MM, Algra, A, Bamford, J, Beard, J, Bland, M, Bradbury, AW, Clifton, A, Hacke, W, Halliday, A, Malik, I, Mas, JL, McGuire, AJ, Sidhu, P, Venables, G, Bradbury, A, Collins, R, Molynewc, A, Naylor, R, Warlow, C, Ferro, JM, Thomas, D, Coward, L, Featherstone, RF, Tindall, H, McCabe, DJH, Wallis, A, Brooks, M, Chambers, B, Chan, A, Chu, P, Clark, D, Dewey, H, Donnan, G, Fell, G, Hoare, M, Molan, M, Roberts, A, Roberts, N, Beiles, B, Bladin, C, Clifford, C, Grigg, M, New, G, Bell, R, Bower, S, Chong, W, Holt, M, Saunder, A, Than, PG, Gett, S, Leggett, D, McGahan, T, Quinn, J, Ray, M, Wong, A, Woodruff, P, Foreman, R, Schultz, D, Scroop, R, Stanley, B, Allard, B, Atkinson, N, Cambell, W, Davies, S, Field, P, Milne, P, Mitchell, P, Tress, B, Yan, B, Beasley, A, Dunbabin, D, Stary, D, Walker, S, Cras, P, d'Archambeau, O, Hendriks, JMH, Van Schil, P, Bosiers, M, Deloose, K, van Buggenhout, E, De Letter, J, Devos, V, Ghekiere, J, Vanhooren, G, Astarci, P, Hammer, F, Lacroix, V, Peeters, A, Verhelst, R, DeJaegher, L, Verbist, J, Blair, J-F, Caron, JL, Daneault, N, Giroux, M-F, Guilbert, F, Lanthier, S, Lebrun, L-H, Oliva, V, Raymond, J, Roy, D, Soulez, G, Weill, A, Hill, M, Hu, W, Hudion, M, Morrish, W, Sutherland, G, Wong, J, Alback, A, Harno, H, Ijas, P, Kaste, M, Lepantalo, M, Mustanoja, S, Paananen, T, Porras, M, Putaala, J, Railo, M, Sairanen, T, Soinne, L, Vehmas, A, Vikatmaa, P, Goertler, M, Halloul, Z, Skalej, M, Brennan, P, Kelly, C, Leahy, A, Moroney, J, Thornton, J, Koelemay, MJW, Reekers, JAA, Roos, YBWEM, Koudstaal, PJ, Pattynama, PMT, van der Lugt, A, van Dijk, LC, van Sambeek, MRHM, van Urk, H, Verhagen, HJM, Bruininckx, CMA, de Bruijn, SF, Keunen, R, Knippenberg, B, Mosch, A, Treurniet, F, van Dijk, L, van Overhagen, H, Wever, J, de Beer, FC, van den Berg, JSP, van Hasselt, BAAM, Zeilstra, DJ, Boiten, J, van Otterloo, JCADM, de Vries, AC, Nieholt, GJLA, van der Kallen, BFW, Blankensteijn, JD, De Leeuw, FE, Kool, LJS, van der Vliet, JA, de Kort, GAP, Kapelle, LJ, Mali, WPTM, Moll, F, Verhagen, H, Barber, PA, Bourchier, R, Hill, A, Holden, A, Stewart, J, Bakke, SJ, Krohg-Sorensen, K, Skjelland, M, Tennoe, B, Bialek, P, Biejat, Z, Czepiel, W, Czlonkowska, A, Dowzenko, A, Jedrzejewska, J, Kobayashi, A, Lelek, M, Polanski, J, Kirbis, J, Milosevic, Z, Zvan, B, Blasco, J, Chamorro, A, Macho, J, Obach, V, Riambau, V, San Roman, L, Branera, J, Canovas, D, Estela, J, Gimenez Gaibar, A, Perendreu, J, Bjorses, K, Gottsater, A, Ivancev, K, Maetzsch, T, Sonesson, B, Berg, B, Delle, M, Formgren, J, Gillgren, P, Kall, T-B, Konrad, P, Nyman, N, Takolander, R, Andersson, T, Malmstedt, J, Soderman, M, Wahlgren, C, Wahlgren, N, Binaghi, S, Hirt, L, Michel, P, Ruchat, P, Engelter, ST, Fluri, F, Guerke, L, Jacob, AL, Kirsch, E, Radue, E-W, Stierli, P, Wasner, M, Wetzel, S, Bonvin, C, Kalangos, A, Lovblad, K, Murith, N, Ruefenacht, D, Sztajzel, R, Higgins, N, Kirkpatrick, PJ, Martin, P, Adam, D, Bell, J, Crowe, P, Gannon, M, Henderson, MJ, Sandler, D, Shinton, RA, Scriven, JM, Wilmink, T, D'Souza, S, Egun, A, Guta, R, Punekar, S, Seriki, DM, Thomson, G, Brennan, A, Enevoldson, TP, Gilling-Smith, G, Gould, DA, Harris, PL, McWilliams, RG, Nasser, H-C, White, R, Prakash, KG, Serracino-Inglott, F, Subramanian, G, Symth, JV, Walker, MG, Clarke, M, Davis, M, Dixit, SA, Dolman, P, Dyker, A, Ford, G, Golkar, A, Jackson, R, Jayakrishnan, V, Lambert, D, Lees, T, Louw, S, Mendelow, AD, Rodgers, H, Rose, J, Stansby, G, Wyatt, M, Baker, T, Baldwin, N, Jones, L, Mitchell, D, Munro, E, Thornton, M, Baker, D, Davis, N, Hamilton, G, McCabe, D, Platts, A, Tibballs, J, Cleveland, T, Dodd, D, Lonsdale, R, Nair, R, Nassef, A, Nawaz, S, Belli, A, Cloud, G, Markus, H, McFarland, R, Morgan, R, Pereira, A, Thompson, A, Chataway, J, Cheshire, N, Gibbs, R, Hammady, M, Jenkins, M, Wolfe, J, Adiseshiah, M, Bishop, C, Brew, S, Brookes, J, Jaeger, R, Kitchen, N, Ashleigh, R, Butterfield, S, Gamble, GE, Nasim, A, O'Neill, P, Edwards, RD, Lees, KR, MacKay, AJ, Moss, J, and Rogers, P

Abstract

Background Stents are an alternative treatment to carotid endarterectomy for symptomatic carotid stenosis, but previous trials have not established equivalent safety and efficacy. We compared the safety of carotid artery stenting with that of carotid endarterectomy.Methods The International Carotid Stenting Study (ICSS) is a multicentre, international, randomised controlled trial with blinded adjudication of outcomes. Patients with recently symptomatic carotid artery stenosis were randomly assigned in a 1:1 ratio to receive carotid artery stenting or carotid endarterectomy. Randomisation was by telephone call or fax to a central computerised service and was stratified by centre with minimisation for sex, age, contralateral occlusion, and side of the randomised artery. Patients and investigators were not masked to treatment assignment. Patients were followed up by independent clinicians not directly involved in delivering the randomised treatment. The primary outcome measure of the trial is the 3-year rate of fatal or disabling stroke in any territory, which has not been analysed yet. The main outcome measure for the interim safety analysis was the 120-day rate of stroke, death, or procedural myocardial infarction. Analysis was by intention to treat (ITT). This study is registered, number ISRCTN25337470.Findings The trial enrolled 1713 patients (stenting group, n=855; endarterectomy group, n=858). Two patients in the stenting group and one in the endarterectomy group withdrew immediately after randomisation, and were not included in the ITT analysis. Between randomisation and 120 days, there were 34 (Kaplan-Meier estimate 4.0%) events of disabling stroke or death in the stenting group compared with 27 (3.2%) events in the endarterectomy group (hazard ratio [HR] 1.28, 95% CI 0.77-2.11). The incidence of stroke, death, or procedural myocardial infarction was 8.5% in the stenting group compared with 5.2% in the endarterectomy group (72 vs 44 events; HR 1.69, 1.16-2.45

36. In Situ Fenestration: Implications for Endograft Durability.

Author

Astarci, P., How, T. V., Harris, P. L., Brennan, J., Gilling-Smith, G. L., Verhelst, R., and McWilliams, Richard G.

Subjects
TEXTILES, ANGIOPLASTY, VASCULAR surgery, POLYTEF, DACRON
Abstract

The article focuses on a study which examined the applicability of in situ fenestration of the Zenith endograft to other fabrics, the stability of the resultant fabric tear, and the potential damage to endoskeleton by the blades of the cutting balloon. The PTFE and Dacron's static fabric testing suggests that in situ fenestration is not likely to result in propagating fabric tear. There is a potential for initial damage during in situ fenestration as shown by the scratch testing of nitinol.

Published
2005

37. Epidemiology and diagnosis of endograft infection.

Author

Hobbs SD, Kumar S, and Gilling-Smith GL

Subjects
Aortic Diseases microbiology, Aortography methods, Bacteriological Techniques, Blood Vessel Prosthesis Implantation instrumentation, Digestive System Fistula diagnosis, Digestive System Fistula epidemiology, Digestive System Fistula microbiology, Humans, Incidence, Magnetic Resonance Imaging, Positron-Emission Tomography, Predictive Value of Tests, Prosthesis-Related Infections microbiology, Risk Assessment, Sepsis diagnosis, Sepsis epidemiology, Sepsis microbiology, Time Factors, Tomography, X-Ray Computed, Treatment Outcome, Vascular Fistula diagnosis, Vascular Fistula epidemiology, Vascular Fistula microbiology, Aortic Diseases surgery, Blood Vessel Prosthesis adverse effects, Blood Vessel Prosthesis Implantation adverse effects, Prosthesis-Related Infections diagnosis, Prosthesis-Related Infections epidemiology, Stents adverse effects
Abstract

Endograft infection is reported to occur in between 0.2 and 0.7 of patients and in general presents either within four months of endograft implantation of after more than 12 months. Review of all cases reported to date reveals three modes of presentation: approximately one third of patients present with evidence of an aorto-enteric fistula (although less than half of these present with gastrointestinal haemorrhage), one third present with non specific signs of low grade sepsis (malaise, weight loss) and the remainder with evidence of severe systemic sepsis. Infection is most commonly attributed to Staphylococcus aureus. Diagnosis relies on a high index of suspicion, imaging of the aorta and periaortic tissues (computed tomography or magnetic resonance imaging) and bacteriological culture. This paper presents a detailed analysis of the features of all cases reported to date and examines the aetiology, pathogenesis and imaging of endograft infection and aorto-enteric fistula.

Published
2010

39. Aortic side branch perfusion alone does not account for high intra-sac pressure after endovascular repair (EVAR) in the absence of graft-related endoleak.

Author

Vallabhaneni SR, Gilling-Smith GL, How TV, Brennan JA, Gould DA, McWilliams RG, and Harris PL

Subjects
Catheters, Indwelling adverse effects, Hemodynamics physiology, Humans, Vascular Patency physiology, Aortic Aneurysm physiopathology, Aortic Aneurysm surgery, Aortic Rupture etiology, Aortic Rupture physiopathology, Blood Pressure physiology, Blood Vessel Prosthesis Implantation adverse effects, Coronary Circulation physiology, Postoperative Complications, Prosthesis Failure
Abstract

Objective: to examine the effect of stent-graft deployment on pressure within an aneurysm sac and to investigate the potential sources of intra-sac pressure., Material and Methods: intra-sac pressure was monitored during and immediately after endovascular repair via an indwelling catheter. Intra-sac pressure was also monitored during conventional open repair and was compared with the pressure measured within patent lumbar and inferior mesenteric side-branches, both before and after restoration of iliac arterial blood flow. Intra-sac and side-branch pressures were recorded and expressed as ratios of simultaneously measured radial artery pressure., Results: in the absence of a graft-related endoleak (23/25 patients), endovascular repair resulted in a significant reduction in intra-sac pulse pressure (median ratio 0.31 IQR 0.10-0.46). There was no corresponding reduction in mean intra-sac pressure (median ratio 0.91; IQR 0.83-1.00). Application of clamps at conventional open repair resulted in a fall in both intra-sac pressure (median ratio 0.39, IQR 0.32-0.64) and pressure within side-branches (median ratio 0.45, IQR 0.33-0.64). Restoration of iliac blood flow resulted in a modest recovery of the side-branch pressure (median ratio 0.63, IQR 0.57-0.81), which nonetheless remained significantly less than the intra-sac pressure recorded after EVAR (p=0.01)., Conclusion: reperfusion of the aneurysm sac through patent side-branches seems insufficient to account for persistent pressurisation of the aneurysm after endovascular repair. This finding supports the hypothesis that pressure may be transmitted directly through stent-graft fabric.

Published
2003
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40. The distaflo graft: a valid alternative to interposition vein?

Author

Fisher RK, Kirkpatrick UJ, How TV, Brennan JA, Gilling-Smith GL, and Harris PL

Subjects
Adult, Aged, Aged, 80 and over, Anastomosis, Surgical, Female, Femoral Artery surgery, Graft Occlusion, Vascular surgery, Humans, Ischemia surgery, Leg surgery, Male, Middle Aged, Popliteal Artery surgery, Prospective Studies, Reoperation, Tibial Arteries surgery, Treatment Outcome, Vascular Patency, Veins transplantation, Arterial Occlusive Diseases surgery, Blood Vessel Prosthesis, Blood Vessel Prosthesis Implantation methods, Leg blood supply
Abstract

Introduction: the rationale behind the Distaflo graft is inhibition of myointimal hyperplasia through optimisation of haemodynamic forces at the distal anastomosis. This prospective study reports our early clinical results., Method: patients with critical limb ischaemia, but no autologous vein, underwent infrainguinal bypass using Distaflo. Clinical and Duplex assessment provided prospective data from which one year cumulative patency, limb salvage and survival rates were calculated using Kaplan-Meier analysis. Log rank test enabled comparison with an historical control group of Miller cuff grafts., Results: fifty Distaflo were inserted over 29 months into 46 patients, median age 68.5 years, 27 male (59%), of which 27 (54%) were re-do procedures. Proximal anastomoses were to common femoral arteries in 40 cases (80%); distal anastomoses were to popliteal vessels in 20 (40%), and tibial vessels in 30 (60%). The Distaflo graft had patency, limb salvage and survival rates of 39, 50 and 82% respectively compared to 49, 56 and 85% respectively in the control group, with no statistical difference (p = 0.39; 0.65; 0.67 respectively; log rank)., Conclusion: in this non-randomised study, the Distaflo has similar one year patency, limb salvage and survival rates to the Miller cuff, potentially justifying its use an alternative in distal prosthetic arterial reconstruction for critical limb ischaemia.

Published
2003
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41. Nature and significance of endoleaks and endotension: summary of opinions expressed at an international conference.

Author

Veith FJ, Baum RA, Ohki T, Amor M, Adiseshiah M, Blankensteijn JD, Buth J, Chuter TA, Fairman RM, Gilling-Smith G, Harris PL, Hodgson KJ, Hopkinson BR, Ivancev K, Katzen BT, Lawrence-Brown M, Meier GH, Malina M, Makaroun MS, Parodi JC, Richter GM, Rubin GD, Stelter WJ, White GH, White RA, Wisselink W, and Zarins CK

Subjects
Congresses as Topic, Humans, Aortic Aneurysm surgery, Attitude of Health Personnel, Blood Vessel Prosthesis adverse effects, Blood Vessel Prosthesis Implantation adverse effects, Postoperative Complications, Prosthesis Failure
Abstract

Objective: Endoleaks and endotension are critically important complications of some endovascular aortic aneurysm repairs (EVARs). For the resolution of controversial issues and the determination of areas of uncertainty relating to these complications, a conference of 27 interested leaders was held on November 20, 2000., Methods: These 27 participants (21 vascular surgeons, five interventional radiologists, one cardiologist) had previously answered 40 key questions on endoleaks and endotension. At the conference, these 40 questions and participant answers were discussed and in some cases modified to determine points of agreement (consensus), near consensus (prevailing opinion), or disagreement., Results: Conference discussion added two modified questions for a total of 42 key questions for the participants. Interestingly, consensus was reached on the answers to 24 of 42 or 57% of the questions, and near consensus was reached on 14 of 42 or 33% of the questions. Only with the answers to four of 42 or 10% of the questions was there persistent controversy or disagreement., Conclusion: The current endoleak classification system with some important modifications is adequate. Types I and II endoleak occur after 0 to 10% and 10% to 25% of EVARs, respectively. Many (30% to 100%) type II endoleaks will seal and have no detrimental effect, which never or rarely occurs with type I endoleaks. Not all endoleaks can be visualized with any technique, and increased pressure (endotension) can be transmitted through clot. Aneurysm pulsatility after EVAR correlates poorly with endoleaks and endotension. An enlarging aneurysm after EVAR mandates surgical or interventional treatment. These and other conclusions will help to resolve controversy and aid in the management of these vexing complications and should also point the way to future research in this field.

Published
2002
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42. Perianeurysmal fibrosis: a relative contra-indication to endovascular repair.

Author

Vallabhaneni SR, McWilliams RG, Anbarasu A, Rowlands PC, Brennan JA, Gould DA, Harris PL, and Gilling-Smith GL

Subjects
Aged, Angioplasty, Aorta, Abdominal diagnostic imaging, Aorta, Abdominal pathology, Aortic Aneurysm, Abdominal diagnostic imaging, Female, Fibrosis, Humans, Inflammation, Male, Middle Aged, Prospective Studies, Tomography, X-Ray Computed, Ureter pathology, Aortic Aneurysm, Abdominal pathology, Aortic Aneurysm, Abdominal surgery, Blood Vessel Prosthesis Implantation, Stents
Abstract

Objective: Perianeurysmal fibrosis (PAF) with involvement of neighbouring viscera can render open repair of inflammatory aneurysms technically difficult and therefore hazardous. For this reason, endovascular repair (EVAR) has been advocated as the preferred approach for this condition. EVAR is known to induce a systemic inflammatory response in patients but the nature of the local response remains unknown. If significant, such a response could exacerbate rather than ameliorate PAF. The aim of the study was to examine the incidence, course and consequences of perianeurysmal fibrosis detected by computerised tomography (CT) before and after EVAR., Material and Methods: The clinical records of patients treated by EVAR and followed for at least 6 months were reviewed. Pre and post-operative CT images were independently graded for PAF by three radiologists according to a standard protocol., Results: PAF was documented preoperatively in six out of a total of 61 patients. In two of these PAF worsened after EVAR resulting in ureteric obstruction and hydronephrosis requiring ureteric stents. In the remaining 4 patients PAF did not reduce postoperatively. PAF of low grade developed postoperatively in 10 out of 55 patients (18%) in whom there was no evidence of PAF on preoperative imaging. Median follow-up was 18 months (range 6-36 months). The development of periaortic fibrosis de novopostoperatively was statistically significant (McNemar's test p=0.002)., Conclusion: EVAR does not seem to reverse PAF if this is present preoperatively and it induces this condition in approximately one sixth of patients without evidence of preoperative PAF. The potential for this adverse inflammatory local response should be taken into account when considering EVAR for treatment of aneurysms with perianeurysmal fibrosis and must be weighed against the perceived benefits of this approach., (Copyright 2001 Harcourt Publishers Limited.)

Published
2001
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43. Aortic side branch embolization before endovascular aneurysm repair: incidence of type II endoleak.

Author

Gould DA, McWilliams R, Edwards RD, Martin J, White D, Joekes E, Rowlands PC, Brennan J, Gilling-Smith G, and Harris PL

Subjects
Angiography, Aorta, Abdominal diagnostic imaging, Feasibility Studies, Follow-Up Studies, Humans, Incidence, Postoperative Complications epidemiology, Preoperative Care, Time Factors, Tomography, X-Ray Computed, Aortic Aneurysm, Abdominal surgery, Balloon Occlusion, Embolization, Therapeutic, Postoperative Complications prevention & control
Abstract

Purpose: To assess the feasibility of embolization of aortic side branches and its impact on the incidence of type II endoleak after endovascular aneurysm repair., Materials and Methods: Endovascular aneurysm repair was performed in 74 patients. Aortic side branch vessels were evaluated on the preoperative angiogram and computed tomography (CT) and, where embolization of lumbar and inferior mesenteric vessels was considered technically possible, this was attempted prior to endovascular repair. Follow-up CT was used to assess the presence of type II endoleak., Results: Seventy-two patients were followed up for longer than 1 month. Embolization was attempted in 25 cases, successfully in 10, with partial success in 11, and failure in four. Twenty patients with successful or partly successful preoperative embolization were discharged and followed-up. Four (20%) had demonstrable type II endoleak during follow-up, with two of these persisting at latest follow-up. Of 43 patients without previous embolization, there were 10 (23.3%) type II endoleaks during the follow-up period, four of these persisting. In cases with type II endoleak, mean sac diameter change was -0.5 mm in the cases with previous embolization and +3.1 mm without. The mean period to onset of type II endoleak was 6.9 months without, and 15.3 months with, previous embolization., Conclusion: Although the cohort size is below a level that would confer significance, the trend of these findings is such as to suggest a lack of influence of aortic side branch embolization on the incidence of type II endoleak during the follow-up period.

Published
2001
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44. Graft distortion after endovascular repair of abdominal aortic aneurysm: association with sac morphology and mid-term complications.

Author

Gould DA, Edwards RD, McWilliams RG, Rowlands PC, Martin J, White D, Fear S, Bakran A, Brennan J, Gilling-Smith G, and Harris PL

Subjects
Aged, Aortic Aneurysm, Abdominal diagnostic imaging, Aortography, Female, Follow-Up Studies, Humans, Incidence, Male, Models, Statistical, Postoperative Complications diagnostic imaging, Postoperative Complications epidemiology, Stents, Tomography, X-Ray Computed, Treatment Outcome, Vascular Patency, Aortic Aneurysm, Abdominal surgery, Blood Vessel Prosthesis Implantation, Postoperative Complications etiology
Abstract

Purpose: To investigate the incidence, significance, and mechanism of stent-graft distortion after endovascular repair (EVR) of abdominal aortic aneurysm., Methods: EVR of abdominal aortic aneurysm was performed in 51 cases (49 modular, bifurcated; 2 tube). Thirty-two patients were followed for 6 or more months and had equivalent baseline and follow-up images which could be used to determine changes in graft configuration. Sac dimensions were measured using computed tomographic (CT) images and graft-related complications were recorded., Results: Amongst 32 patients evaluated on follow-up, there was graft distortion in 24. Distorted grafts were significantly (p = 0.002) associated with sac diameter reduction (mean 5 mm) and sac length reduction (mean 8.1 mm). All graft-related complications occurred in the limbs of eight distorted grafts, with a mean reduction of sac length in this group of 7.8 mm on reformatted CT images., Conclusion: There was a highly significant association between graft distortion and limb complications, and reduced sac dimensions.

Published
2000
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45. Cranial nerve dysfunction following carotid endarterectomy.

Author

Maroulis J, Karkanevatos A, Papakostas K, Gilling-Smith GL, McCormick MS, and Harris PL

Subjects
Aged, Cranial Nerve Diseases epidemiology, Cranial Nerve Injuries epidemiology, England, Female, Follow-Up Studies, Humans, Male, Middle Aged, Postoperative Complications epidemiology, Remission, Spontaneous, Retrospective Studies, Carotid Stenosis surgery, Cranial Nerve Diseases etiology, Cranial Nerve Injuries etiology, Endarterectomy, Carotid, Postoperative Complications etiology
Abstract

Background: Carotid endarterectomy (CEA) is the most common surgical procedure performed for the treatment of symptomatic carotid stenosis greater than 70%. Among the recognised complications, such as stroke and myocardial infarction, is injury to cranial nerves., Methods: We report the incidence and follow-up of cranial nerve injury in 269 patients who underwent carotid endarterectomy between January 1994 and December 1997 at the Royal Liverpool University Hospital., Results: Fifteen cranial nerve injuries were documented (5.6%). Seven patients (2.6%) had unilateral vocal cord paralysis, nine (3.3%) hypoglossal palsy, two (0.7%) glossopharyngeal nerve injury and one (0.4%) facial nerve palsy (marginal mandibular nerve). All patients showed improvement within a few weeks and none had residual disability at the last follow-up (two weeks to 14 months)., Conclusions: Patients manifesting symptoms of cranial nerve dysfunction should undergo a thorough otolaryngological evaluation and long-term follow-up. Most cranial nerve injuries are transient and result from trauma during dissection, retraction or carotid clamping. Knowledge of cranial nerve anatomy is essential if the surgeon is to avoid such injuries.

Published
2000

46. Freedom from endoleak after endovascular aneurysm repair does not equal treatment success.

Author

Gilling-Smith GL, Martin J, Sudhindran S, Gould DA, McWilliams RG, Bakran A, Brennan JA, and Harris PL

Subjects
Aged, Aged, 80 and over, Aorta, Abdominal diagnostic imaging, Aorta, Abdominal surgery, Aortic Aneurysm, Abdominal complications, Aortic Aneurysm, Abdominal diagnostic imaging, Blood Vessel Prosthesis Implantation, Female, Follow-Up Studies, Humans, Male, Middle Aged, Postoperative Complications diagnostic imaging, Prosthesis Failure, Reoperation, Tomography, X-Ray Computed, Treatment Outcome, Aortic Aneurysm, Abdominal surgery, Blood Vessel Prosthesis, Postoperative Complications prevention & control
Abstract

Objective: To determine whether freedom from endoleak after endovascular repair of abdominal aortic aneurysm (EVAR) is a reliable guide to freedom from persistent or recurrent pressurisation of the aneurysm sac (endotension) and therefore freedom from risk of rupture., Patients and Methods: The records of 55 patients followed for more than 3 months after EVAR were reviewed to correlate the presence or absence of endoleak on contrast-enhanced CT and/or angiography with changes in maximum aneurysm diameter (DMAX)., Results: in 22 (40%) patients there was no significant change in DMAX during follow-up. In 21 of these no endoleak was observed on CT or angiography. One patient developed a secondary side-branch endoleak which remains under observation. In 18 (33%) patients, DMAX decreased during follow-up. Thirteen of these remained free of endoleak. Four patients developed secondary endoleaks which were treated by secondary intervention. One patient with persistent primary endoleak suffered fatal aneurysm rupture three days before planned intervention. DMAX increased in 15 (27%) patients. In only five of these could an endoleak be identified on CT and/or angiography. One primary side-branch endoleak persists following failed embolisation. Four secondary endoleaks have been corrected by secondary intervention. Four of the remaining 10 patients died suddenly from unknown cause. All had DMAX greater than 65 mm at last follow-up. One patient underwent late conversion, which suggested continued pressurisation through thrombus at the site of a "sealed" primary proximal endoleak. Two patients are scheduled to undergo embolisation of patent side-branches revealed only by Levovist enhanced Duplex scanning and three patients remain under observation., Conclusion: Freedom from endoleak on conventional imaging incorrectly suggested freedom from endotension in 10 (18%) of our patients. Follow-up after endovascular repair must include regular measurement of DMAX and/or aneurysm sac volume to identify those patients who remain at risk of rupture., (Copyright 1999 Harcourt Publishers Ltd.)

Published
2000
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47. Endotension after endovascular aneurysm repair: definition, classification, and strategies for surveillance and intervention.

Author

Gilling-Smith G, Brennan J, Harris P, Bakran A, Gould D, and McWilliams R

Subjects
Aneurysm, Ruptured complications, Aneurysm, Ruptured physiopathology, Aneurysm, Ruptured prevention & control, Aortic Aneurysm, Abdominal physiopathology, Blood Vessel Prosthesis, Humans, Monitoring, Physiologic, Prosthesis Failure, Reoperation, Rupture, Spontaneous, Aortic Aneurysm, Abdominal surgery, Blood Pressure physiology, Blood Vessel Prosthesis Implantation adverse effects, Postoperative Hemorrhage classification, Postoperative Hemorrhage etiology, Postoperative Hemorrhage surgery
Abstract

In the ongoing evolution of a categorization system for endoleak, the authors propose the term endotension to define persistent or recurrent pressurization of the aortic aneurysm sac after endovascular repair. Endotension is evidence that the aneurysm remains at risk of rupture and should, therefore, be considered an indication for secondary intervention. Management strategies and a grading system for endotension are offered.

Published
1999
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48. Use of contrast-enhanced ultrasound in follow-up after endovascular aortic aneurysm repair.

Author

McWilliams RG, Martin J, White D, Gould DA, Harris PL, Fear SC, Brennan J, Gilling-Smith GL, Bakran A, and Rowlands PC

Subjects
Aged, Angiography, Aortic Aneurysm, Abdominal diagnostic imaging, Blood Vessel Prosthesis, Female, Follow-Up Studies, Humans, Injections, Intravenous, Male, Middle Aged, Postoperative Hemorrhage etiology, Predictive Value of Tests, Prosthesis Failure, Retrospective Studies, Tomography, X-Ray Computed, Aortic Aneurysm, Abdominal surgery, Contrast Media administration & dosage, Polysaccharides administration & dosage, Postoperative Hemorrhage diagnostic imaging, Ultrasonography, Doppler, Color methods
Abstract

Purpose: To investigate the use of contrast-enhanced ultrasound in the detection of endoleak after endovascular repair of abdominal aortic aneurysm., Materials and Methods: Eighteen patients underwent follow-up on 20 occasions after endovascular aortic aneurysm repair by arterial-phase contrast-enhanced spiral computed tomography (CT). All patients had unenhanced color Doppler ultrasound and Levovist-enhanced ultrasound on the same day. The ultrasound examinations were reported in a manner that was blind to the CT results. CT was regarded as the gold standard for the purposes of the study., Results: There were three endoleaks shown by CT. Unenhanced ultrasound detected only one endoleak (sensitivity, 33%). Levovist-enhanced ultrasound detected all three endoleaks (sensitivity, 100%). Levovist-enhanced ultrasound indicated an additional six endoleaks that were not confirmed by CT (specificity, 67%; positive predictive value, 33%). In one of these six cases, the aneurysm increased in size, which indicates a likelihood of endoleak. Two of the remaining false-positive results occurred in patients known to have a distal implantation leak at completion angiography., Conclusion: In this small group of patients, contrast-enhanced ultrasound appears to be a reliable screening test for endoleak. The false-positive results with enhanced ultrasound may be due to the failure of CT to detect slow flow collateral pathways. Although the number of patients in this study is small, enhanced ultrasound may be more reliable than CT in detecting endoleak.

Published
1999
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49. Longitudinal aneurysm shrinkage following endovascular aortic aneurysm repair: a source of intermediate and late complications.

Author

Harris P, Brennan J, Martin J, Gould D, Bakran A, Gilling-Smith G, Buth J, Gevers E, and White D

Subjects
Aged, Aged, 80 and over, Angiography, Aortic Aneurysm, Abdominal diagnostic imaging, Blood Vessel Prosthesis Implantation instrumentation, Female, Follow-Up Studies, Foreign-Body Migration diagnostic imaging, Foreign-Body Migration epidemiology, Humans, Incidence, Male, Middle Aged, Tomography, X-Ray Computed, Aortic Aneurysm, Abdominal surgery, Blood Vessel Prosthesis, Blood Vessel Prosthesis Implantation adverse effects, Foreign-Body Migration etiology, Prosthesis Failure
Abstract

Purpose: To report the incidence of delayed complications following endovascular abdominal aortic aneurysm (AAA) repair and the relationship of these sequelae to morphological changes in the sac and endograft., Methods: Twenty-six AAA patients treated with Vanguard endografts had completed > or = 1-year follow-up. Postoperative angiograms and spiral computed tomographic (CT) scans with 3-dimensional reconstruction were compared to the 1-year images to determine morphological changes in the aneurysm sac and the endograft. These changes were then related to complications occurring between 1 and 12 months postoperatively in the study group., Results: Comparison of angiograms uncovered endograft buckling in 18 (69%) patients and acutely angled or kinked endografts in 10 (38%). Measurements from the CT scans found that undistorted endografts had a mean change in sac length of +6.6 mm. Mean sac length change in buckled endografts was -3.1 mm, while kinked endografts displayed a mean change of -6.2 mm (p < 0.002, Student's t-test). Five (19%) patients, all with distorted endografts, demonstrated late (1 to 12 months) complications (4 endoleaks and 1 graft limb thrombosis) owing to component separation, distal stent migration, and acute angulation. No movement in the proximal stent was observed. Elongation of the endograft (flow line measurement) was observed in one tube graft only., Conclusions: In this study, longitudinal shrinkage of the sac following endovascular aortic aneurysm repair led to buckling or kinking of the endograft within 1 year in 69% of patients. This appears to be an important source of delayed complications.

Published
1999
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50. A prototype simulator for endovascular repair of abdominal aortic aneurysms.

Author

Chong CK, Brennan J, How TV, Edwards R, Gilling-Smith GL, and Harris PL

Subjects
Humans, Models, Cardiovascular, Aortic Aneurysm, Abdominal surgery, Blood Vessel Prosthesis, Computer Simulation, Stents
Abstract

A prototype simulator for training in endovascular repair of abdominal aortic aneurysms (AAA) has been developed. Employing transparent models of human AAA complete with renal, iliac and femoral arteries, this system allows accurate simulation of aortography, road-mapping, catheter guidewire manipulation and stent-graft deployment while obviating the need for ionising radiation.

Published
1997
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