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  1. Dawson J, Lees JS, Chang TP, Walters MR, Ali M, Davis SM, Diener HC, Lees KR, for the GAIN and VISTA Investigators. Association between disability measures and healthcare costs after initial treatment for acute stroke. Stroke.2007;38:1893-1898
  2. Prosser J; MacGregor L; Lees KR; Diener HC; Hacke W; Davis SM; on behalf of the VISTA investigators.Predictors of Early Cardiac Morbidity and Mortality after Ischemic Stroke. Stroke. 2007;38:2295-2302
  3. Fink JN, Frampton CM, Lyden P, Lees KR, on behalf of the VISTA Investigators. Does hemispheric lateralization influence functional and cardiovascular outcomes after stroke? An analysis of placebo-treated patients from prospective acute stroke trials. Stroke 2008;39:3335-3340
  4. Konig IR; Ziegler A; Bluhmki E; Hacke W; Bath PMW; Sacco RL; Diener HC; Weimar C; on behalf of the Virtual International Stroke Trials Archive (VISTA) Investigators. Predicting Long-Term Outcome After Acute Ischemic Stroke. A Simple Index Works in Patients From Controlled Clinical Trials. Stroke. 2008;39:1821-1826
  5. Quinn TJ, Dawson J, Lees JS, Chang TP, Walters MR, Lees KR; GAIN and VISTA Investigators. Time spent at home post-stroke: "home-time" a meaningful and robust outcome measure for stroke trials. Stroke 2008; 39: 231-3
  6. Ovbiagele B; Starkman S; Teal P; Lyden P; Kaste M; Davis SM; Hacke W; Fierus M; Saver JL; on behalf of the VISTA Investigators, Serum Calcium as Prognosticator in Ischemic Stroke. Stroke. 2008;39:2231-2236
  7. Hallevi H, Albright KC, Martin-Schild S, Barreto AD, Grotta JC, Savitz SI. The complications of cardioembolic stroke: lessons from the VISTA database. Cerebrovasc Dis 2008; 26:38–40.
  8. Ali M, Atula S, Bath PMW, Grotta J, Hacke W, Lyden P, Marler J, Sacco RL, Lees KR, for the VISTA Investigators, Stroke Outcomes in Clinical Trials Patients Deriving from Different Countries. Stroke 2009;40:35-40
  9. Dawson J, Lees KR, Weir CJ, Quinn TJ, Ali M, Hennerici M, Walters MR, and the VISTA collaborators. Baseline Serum Urate and 90-Day Functional Outcomes Following Acute Ischemic Stroke. Cerebrovascular Diseases, 2009; 28:202-203.
  10. Gray LJ, Ali M, Lyden P, Bath PMW, for the VISTA Investigators. Interconversion of the National Institutes of Health Stroke Scale and Scandinavian Stroke Scale in acute stroke. Journal of Stroke and Cerebrovascular Diseases, 2009; 18: 466-468
  11. Hallevi H, Albright KC, Martin-Schild SB, Barreto AD, Morales MM, Bornstein Nm Ifejika NL, Shuaib A, Grotta J, Savitz, on behalf of the VISTA Investigators. Recovery after ischaemic stroke: Criteria for good outcome by level of disability at day 7, Cerebrovascular Diseases 2009; 28: 341-348
  12. Saini M, SaqqurM, KamruzzamanA, Lees KR, and ShuaibA, for the VISTA collaboration. Effect of hyperthermia on prognosis after acute ischemic stroke. Stroke 2009;40:3051-9
  13. Sare GM, Ali M, Shuaib A, Bath PMW, for the VISTA Collaboration. Relationship Between Hyperacute Blood Pressure and Outcome After Ischemic Stroke. Stroke 2009; 40:2098-2103.
  14. Weimar C, Ziegler A, Sacco RL, Diener HC, Ziegler A, Koenig IR on behalf of the VISTA Investigators. Predicting recovery after intracerebral hemorrhage – an external validation in patients from controlled clinical trials. J Neurol. 2009; 256:464–469
  15. Kamel H, Lees KR, Lyden P, Teal PA, Shuaib A, Ali M and Johnston SC, on behalf of the VISTA Investigators. Delayed detection of atrial fibrillation after ischaemic stroke. Journal of Stroke and Cerebrovascular Diseases, 2009; 18: (6):453-457
  16. Ali M, Lyden P, Sacco RL, Shuaib A, Lees KR, for the VISTA investigators. Natural History of Complications after Intracerebral Haemorrhage. European Journal of Neurology; 2009: 16:624-630
  17. Ali M, Sacco R, Lees KR, On behalf of the VISTA Investigators. Primary endpoint times, functional outcome and adverse event profile after acute ischaemic stroke. International Journal of Stroke, 2009;4 (6):432-42
  18. Whitehead J, Bolland K, Valdès-Márquez E, Lihic A, Ali M, Lees KR, for the VISTA Collaborators. Using historical lesion volume data in the design of a new phase II clinical trial in acute ischaemic stroke. Stroke 2009; 40:1347-1352
  19. Ali M, Jüttler E, Lees K.R, Hacke W, Diedler J, for the VISTA and DESTINY Investigators.Patient Outcomes in Historical Comparators Compared with Randomised Controlled Trials. International Journal of Stroke 2010;5(1):10-15.
  20. Ovbiagele B, Lyden PD, Saver JL, for the VISTA Collaboration. Disability status at one month is a reliable proxy for final ischaemic stroke outcome. Neurology 2010;24;75(8):688-92.
  21. Mishra NK, Lyden PL, Grotta J, Lees KR, for the VISTA collaborators. Thrombolysis Is Associated With Consistent Functional Improvement Across Baseline Stroke Severity: A Comparison of Outcomes in Patients From the Virtual International Stroke Trials Archive (VISTA), Stroke 2010; 41:2612-2617.
  22. Mishra N.K, Davis S.M, Kaste M. Lees KR, Comparison of outcomes following thrombolytic therapy amongst patients with prior stroke and diabetes in the Virtual International Stroke Trials Archive (VISTA).Care, 2010; 33: 2531 - 2537
  23. Mishra N.K, Ahmed N, Andersen G, Herrero JE, Lindsberg P, Wahlgren N, Lees KR, for SITS and VISTA. Thrombolysis in very elderly people: controlled comparison of SITS International Stroke Thrombolysis Registry and Virtual International Stroke Trials Archive. BMJ 2010, 341:c6046.
  24. Mishra NK, Diener H-C, Lyden PD, Lees KR, for the VISTA collaborators, Influence of age on outcome from thrombolysis in acute stroke: a controlled comparison in patients from the Virtual International Stroke Trials Archive (VISTA). Stroke 2010:41;2840-2848
  25. Mishra NK, Ahmed N, Davalos A, Iversen HK, Melo T, Sionne L, Wahlgren N, Lees KR; SITS and VISTA Collaborators. Thrombolysis outcomes in acute ischemic stroke patients with prior stroke and diabetes mellitus. Neurology. 2011;77(21):1866-72
  26. Favilla CG, Mullen MT, Ali M, Higgins P, Kasner SE, On behalf of the VISTA Collaboration. Sulfonylurea Use Prior to Stroke Does Not Influence Stroke Severity or Long-term Functional Outcome. Stroke 2011;42 710-715
  27. Muir K, McCormick M, Baird T, Ali M. Prevalence, Predictors and Prognosis of Post-Stroke Hyperglycaemia in acute stroke trials: Individual Patient Data Pooled Analysis from the Virtual International Stroke Trials Archive VISTA. Cerebrovasc Dis Extra 2011;1:17-27.
  28. Dowlatshahi D, Demchuk A, Flaherty ML, Ali M, Lyden P, and Smith EE, on behalf of the VISTA Collaboration. Defining hematoma expansion in intracerebral hemorrhage: relationship with patient outcomes. Neurology 2011; 76: 1238-1244.
  29. Dowlatshahi D, Smith EE, Flaherty ML, Ali M, Lyden P, Demchuk AM; VISTA Collaborators. Small intracerebral haemorrhages are associated with less haematoma expansion and better outcomes. Int J Stroke. 2011 Jun;6(3):201-6
  30. Lees JS, Mishra NK, Saini M, Lyden PD, Shuaib A, for Virtual International Stroke Trials Archive (VISTA) Collaborators. Low Body Temperature Does Not Compromise Treatment Effect of Alteplase, Stroke 2011; 42(9):2618-2.
  31. Tu HTH, Campbell BCV, Churilov L, Kalman JM, Lees KR, Lyden PD, Shuaib A, Donnan GA, Davis SM; on behalf of the VISTA collaborators. Frequent early cardiac complications contribute to worse stroke outcome in atrial fibrillation. Cerebrovascular Diseases 2011;32(5):454-60.
  32. Kerr D, Fulton RL, Lees KR, for the VISTA Collaborators. Day 7 NIHSS is a Sensitive Outcome Measure for Exploratory Clinical Trials in Acute Stroke: Evidence from the Virtual International Stroke Trials Archive (VISTA), Stroke 2012; 43:1401-3.
  33. Vogt G, Laage R, Shuaib A, Schneider A, Initial lesion volume is an independent predictor of clinical stroke outcome at day 90: an analysis of the Virtual International Stroke Trials Archive (VISTA) database. Stroke. 2012;43:1266-72
  34. Hajjar K, Fulton RL, Diener HC, Lees KR; for the VISTA Collaborators. Does the cognitive measure Cog-4 show improvement among patients treated with thrombolysis after acute stroke? International Journal of Stroke. 2012 Jul 19. doi: 10.1111/j.1747-4949.2012.00848.x
  35. Frank B, Fulton R, Weimar C, Shuaib A, Lees KR, for the VISTA Collaborators, Impact of atrial fibrillation on outcome in thrombolyzed patients with stroke: evidence from the Virtual International Stroke Trials Archive (VISTA), Stroke 2012 43(7):1872-7.
  36. Ali M, Hazelton C, Lyden P, Pollock A, Brady M, on behalf of the VISTA Collaboration, Recovery from Post-Stroke Visual Impairment: Evidence from a Clinical Trials Resource, JNNR 2013 Feb;27(2):133-141
  37. Ali M, Bath PM, Lyden P, Brady M on Behalf of the VISTA Collaboration. Representation of People with Aphasia in Randomised Controlled Trials of Acute Stroke Interventions. International Journal of Stroke 2013; doi: 10.1111/ijs.12043.
  38. Fulton RL, Lees KR, Bluhmki E, Biegert G, Albers G, Davis SM, Donnan GA, Grotta J, Hacke W, Kaste M, von Kummer R, Shuaib A, Toni D, for the VISTA Collaboration and ECASS, ATLANTIS, NINDS and EPITHET Investigators. Selection for Delayed Intravenous Alteplase Treatment Based on a Prognostic Score, International Journal of Stroke 2013; doi: 10.1111/j.1747-4949.2012.00943.x.
  39. Frank, B., J. C. Grotta, A. V. Alexandrov, E. Bluhmki, P. Lyden, A. Meretoja, N. K. Mishra, A. Shuaib, N. Wahlgren, C. Weimar, and K. R. Lees, on behalf of the VISTA Collaboration. Thrombolysis in Stroke Despite Contraindications or Warnings?Stroke, 2013; 44:727-33.
  40. Frank, B., R. Fulton, C. Weimar, K.R. Lees, and R.D. Sanders on behalf of the VISTA Collaboration. Use of Paracetamol in Ischaemic Stroke Patients: Evidence from VISTA.Neurologica Scandinavica, 2013; 128:172-7.
  41. Frank B, Fulton RL, Goldie FC, Hacke W, Weimar C, Lees KR for the VISTA Collaborators. Intracluster Correlation Coefficients and Reliability of Randomised Multicentre Stroke Trials within VISTA, International Journal of Stroke 2013, 9; 602-605, DOI: 10.1111/ijs.12123.
  42. Goldie FC, Fulton RL, Dawson J, Lees KR on behalf of the VISTA Collaboration. Exploration of time-course combinations of outcome scales for use in a global test of stroke recovery. International Journal of Stroke 2013; 9(6):755-8. doi: 10.1111/ijs.12131.
  43. Ankolekar S, Renton C, Sprigg N, and Bath PMW, The Cog-4 Subset of the National Institutes of Health Stroke Scale as a Measure of Cognition: Relationship with Baseline Factors and Functional Outcome after Stroke Using Data from the Virtual International Stroke Trials Archive, Stroke Research and Treatment, 2013 vol. 2013, Article ID 562506. doi:10.1155/2013/562506.
  44. Frank B, Fulton R, Lees KR, Sanders RD for the VISTA Collaborators. Impact of benzodiazepines on functional outcome and occurrence of pneumonia in stroke: Evidence from VISTA. International Journal of Stroke 2013; DOI: 10.1111/ijs.12148.
  45. Mishra NK, Mandava P, Chen C, Grotta J, Lees KR, Kent TA on behalf of the VISTA Collaboration. Postthrombolysis outcomes in acute ischemic stroke patients of Asian race-ethnicity. International Journal of Stroke 2013. Suppl A100:95-9. doi: 10.1111/ijs.12012
  46. Ali M, Fulton R, Quinn T, Brady M on Behalf of the VISTA Collaboration. How well do Standard Trial Outcome Measures Reflect Quality of Life (QoL)? An Analysis of Clinical Trial Data. Stroke 2013; doi: 10.1161/STROKEAHA.113.001126.
  47. Tu HT, Campbell BCV, Meretoja A, Churilov L, Lees KR, Donnan GA, Davis SM, on behalf of the VISTA collaborators. Pre-stroke CHADS2 and CHA2DS2-VASc scores are useful in stratifying three-month outcomes in patients with and without atrial fibrillation. Cerebrovasc Dis 2013;36:273-280.
  48. Flint AC, Faigeles BS, Cullen SP, Kamel H, Rao VA, Gupta R, Smith WS, Bath PM, Donnan GA, on behalf of the VISTA Collaboration. The THRIVE Score predicts ischemic stroke outcomes and thrombolytic hemorrhage risk in the Virtual International Stroke Trials Archive (VISTA). Stroke 2013 doi: 10.1161/STROKEAHA.113.002794.
  49. Saposnik G, Reeves MJ, Johnston SC, Bath PM, Ovbiagele B on behalf of the VISTA Collaboration. Predicting Clinical Outcomes after Thrombolysis Using the iScore: Results from the Virtual International Stroke Trials Archive. Stroke 2013; doi: 10.1161/STROKEAHA.113.001343.
  50. Saini M, Saqqur M, Shuaib A, on behalf of the VISTA Collaborators. Body mass index and acute ischaemic stroke outcomes. International Journal of Stroke 2013; 9: 618-623.
  51. Ali M, Lyden P, Brady M, on Behalf of the VISTA Collaboration. Aphasia and Dysarthria in Acute Stroke: Recovery and Functional Outcome. International Journal of Stroke 2013 DOI: 10.1111/ijs.12067
  52. Frank B, Fulton R, Lees KR on behalf of the VISTA Collaboration. The effect of time to treatment on outcome in very elderly thrombolysed stroke patients. International Journal of Stroke; 2014; 9: 591-596 DOI: 10.1111/ijs.12249.
  53. Ovbiagele B, Reeves MJ, Nasiri M, Johnston SC, Bath PM, Saposnik G, for the VISTA-Acute Collaboration Steering Committee A Simple Risk Index and Thrombolytic Treatment Response in Acute Ischemic Stroke. JAMA Neurol. doi:10.1001/jamaneurol.2014.689
  54. Abdul-Rahim A H, Fulton RL, Frank B, McMurray JJV, and Lees KR, Associations of Chronic Heart Failure with Outcome in Acute Ischaemic Stroke Patients who received Systemic Thrombolysis: Analysis from VISTA. European Journal of Neurology 2014, (DOI: 10.1111/ene.12548).
  55. Hesse K, Fulton RL, Abdul-Rahim AH and Lees KR, on behalf of the VISTA Collaboration. Characteristic Adverse Events and their Incidence among Patients Participating in Acute Ischemic Stroke Trials. Stroke 2014; 45(9):2677-82.
  56. Abdul-Rahim AH, Fulton RL, Frank B, Tatlisumak T, Paciaroni M, Caso V, Diener HC, Lees KR, on behalf of the VISTA Collaboration. Association of Improved Outcome in Acute Ischaemic Stroke Patients with Atrial Fibrillation who Receive Early Antithrombotic Therapy: Analysis from VISTA. European Journal of Neurology 2014, doi: 10.1111/ene.12577.
  57. Abdul-Rahim, AH, Fulton RL, Sucharew H, Kleindorfer D, Khatri P, Broderick JP, Lees KR, for the VISTA Collaborators, National Institutes of Health Stroke Scale Item Profiles as Predictor of Patient Outcome: External validation on independent trial data. Stroke 2014 DOI: 10.1161/STROKEAHA.114.006837
  58. Sykora M, Siarnik P, Diedler J, for the VISTA Acute Collaborators, Beta- Blockers, pneumonia and outcome after ischemic stroke: Evidence from VISTA. Stroke 2015 DOI: 10.1161/ STROKEAHA.114.008260
  59. Beare R, Chen J, Phan TG, for the VISTA Collaboration, Googling Stroke ASPECTS to Determine Disability: Exploratory Analysis from VISTA-Acute Collaboration. PLOS One DOI:10.1371/journal.pone.0125687
  60. McMeekin P, Flynn D, Ford GA, Rodgers H, Gray J, Thomson RG, On behalf of the VISTA and SITS-UK Collaboration, Development of a decision analytic model (DAM) to support patient individualised decision making and risk communication about thrombolytic treatment in acute stroke care, BMC Medical Informatics and Decision Making 2015; DOI: 10.1186/s12911-015-0213-z.
  61. Phan TG, Clissold B. Ly J, Ma H, Moran C, Srikanth V, on behalf of the VISTA-Acute Collaboration. Stroke severity and comorbidity index for prediction of mortality after ischemic stroke from the VISTA-Acute collaboration. Journal of Stroke and Cerebrovascular Diseases, 2016 doi: 10.1016/j.jstrokecerebrovasdis.2015.12.01 
  62. Hesse K, MacIsaac RL, Abdul-Rahim AH, Lyden PD, Bluhmki E, Lees KR, and for the VISTA Collaborators, Online Tool to Improve Stratification of Adverse Events in Stroke Clinical Trials, Stroke, 2016 DOI: 10.1161/STROKEAHA.115.011930
  63. Scheitz JF, McIsaac RL, Abdul-Rahim AH, Siegerink B, Bath PM, Endres M, Lees KR, on behalf of the VISTA Collaboration, Statins and risk of poststroke hemorrhagic complications. Neurology 2016; 86: 1590-1596
  64. Hill MD, Martin RH, Palesch YY, Moy CS, Tamariz D, Ryckborst KJ, Jones EB, Weisman D, Pettigrew C, Ginsberg M, Albumin Administration in Acute Ischemic Stroke: Safety Analysis of the ALIAS Part 2 Multicenter Trial, PLos One, DOI:10.1371/journal.pone.0131390
  65. MacIsaac RL, Ali M, Petes M, English C, Rodgers H, Jenkinson C, Lees KR, Quinn TJ on behalf of the VISTA Collaboration. Derivation and Validation of a Modified Short Form of the Stroke Impact Scale, (J Am Heart Assoc. 2016;5:e003108 doi: 10.1161/JAHA.115.003108)
  66. Nolte CH, Erdur H, Grittner U, Schneider A, Piper SK, Schietz JF, Wellwood I, Bath PMW, Diener HC, Lees KR, Endres M, for the VISTA Collaborators. Impact of heart rate on admission on mortality and morbidity in acute ischaemic stroke patients-Results from VISTA. European Journal of Neurology 2016 (In Press)
  67. Hametner C, Fulton RL, Kellert L, Abdul-Rahim AH, Ringleb P, Lees KR; for the VISTA Collaborators, Sex and stroke in thrombolyzed patients and controls, Stroke 2016 https://doi.org/10.1161/STROKEAHA.116.014323
  68. Mazlan-Kepli, W, MacIsaac, R. L, Walters, M, Bath, P. M, Dawson, J, on behalf of the VISTA Collaborators, Antiplatelet therapy following ischaemic stroke-Continue or change pre-existing therapy?European Stroke Journal. 2016; 0:2396987316678728v1-2396987316678728.
  69. MacIsaac RL, Ali M, Petes M, English C, Rodgers H, Jenkinson C, Lees KR, Quinn TJ on behalf of the VISTA Collaboration. Derivation and Validation of a Modified Short Form of the Stroke Impact Scale, (J Am Heart Assoc. 2016;5:e003108 doi: 10.1161/JAHA.115.003108)
  70. Ali M, MacIsaac R, Quinn TJ, Bath PM, Veenstra DL, Xu Y, Brady MC, Patel A, Lees KR, on behalf of the VISTA Collaborators, Dependency and health utilities in stroke: Data to inform cost-effectiveness analyses, European Stroke Journal, 2016, DOI: 10.1177/2396987316683780 
  71. MacIsaac RL, Ali M, Taylor-Rowan, M, Rodgers H, Lees KR, Quinn TJ, on behalf of the VISTA Collaborators. Utility of a three item short form version of the Barthel Index for use in Stroke: systematic review and external validation, Stroke 2017  https://doi.org/10.1161/STROKEAHA.116.014789
  72. Phan TG, Clissold BB, Ma H, Van Ly J, Srikanth V. on behalf of the VISTA Collaborators. Predicting  disability after ischemic stroke based on comorbidity index and stroke severity- from the VISTA-Acute collaboration. Frontiers in Neurology 2017 (in Press)
  73. Singh S, Quinn TJ, Bath PM, Lees KR, Myint PK, on behalf of the VISTA Collaborators. Validating and Comparing Stroke Prognosis Scales, Neurology, 2017 (in Press)

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