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on March 11, 2004

Stroke. 2004
Published online before print March 11, 2004, doi: 10.1161/01.STR.0000121641.77121.98
A more recent version of this article appeared on April 1, 2004
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Combined Intravenous and Intra-arterial Recanalization for Acute Ischemic Stroke: The Interventional Management of Stroke Study

The IMS Study Investigators

Background and Purpose--To investigate the feasibility and safety of a combined intravenous (IV) and intra-arterial (IA) approach to recanalization in patients with ischemic stroke.

Materials and Methods--Subjects ages 18 to 80 with an NIH Stroke Scale (NIHSS) >=10 at baseline had IV recombinant tissue plasminogen activator (rt-PA) started (0.6 mg/kg, 60 mg maximum over 30 minutes) within 3 hours of onset. Additional rt-PA was then administered via microcatheter at the site of the thrombus up to a total dose of 22 mg over 2 hours of infusion or until thrombolysis. Primary comparisons were with similar subsets of placebo and rt-PA-treated subjects from the NINDS rt-PA Stroke Trial.

Results--The 80 subjects had a median baseline NIHSS score of 18. The median time to initiation of IV rt-PA was 140 minutes as compared with 108 minutes for placebo and 90 minutes for rt-PA-treated subjects in the NINDS rt-PA Stroke Trial. The 3-month mortality in Interventional Management Study (IMS) subjects (16%) was numerically lower but not statistically different than the mortality of placebo (24%) and rt-PA-treated subjects (21%) in the NINDS rt-PA Stroke Trial. The rate of symptomatic intracerebral hemorrhage (6.3%) in IMS subjects was similar to that of rt-PA-treated subjects (6.6%) but higher than the rate in placebo-treated subjects (1.0%, P=0.018) in the NINDS rt-PA Stroke Trial. IMS subjects had a significantly better outcome at 3 months than NINDS placebo-treated subjects for all outcome measures (odds ratios >=2).

Conclusions--A randomized trial of standard IV rt-PA as compared with a combined IV and IA approach is needed.


Key words: tissue plasminogen activator • thrombolytic therapy • controlled clinical trials


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L. R. Wechsler
Does the Merci Retriever Work?: Against
Stroke, May 1, 2006; 37(5): 1341 - 1342.
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Am. J. Neuroradiol.Home page
R.M. Sugg, E.A. Noser, H.M. Shaltoni, N.R. Gonzales, M.S. Campbell, R. Weir, E.D. Cacayorin, and J.C. Grotta
Intra-arterial reteplase compared to urokinase for thrombolytic recanalization in acute ischemic stroke.
AJNR Am. J. Neuroradiol., April 1, 2006; 27(4): 769 - 773.
[Abstract] [Full Text] [PDF]


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Am. J. Neuroradiol.Home page
D.J. Kim, D.I. Kim, S.K. Lee, S.H. Suh, Y.J. Lee, J. Kim, T.S. Chung, and J.E. Lee
Protective effect of agmatine on a reperfusion model after transient cerebral ischemia: Temporal evolution on perfusion MR imaging and histopathologic findings.
AJNR Am. J. Neuroradiol., April 1, 2006; 27(4): 780 - 785.
[Abstract] [Full Text] [PDF]


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StrokeHome page
M. Ribo, J. Alvarez-Sabin, J. Montaner, F. Romero, P. Delgado, M. Rubiera, R. Delgado-Mederos, and C. A. Molina
Temporal Profile of Recanalization After Intravenous Tissue Plasminogen Activator: Selecting Patients for Rescue Reperfusion Techniques
Stroke, April 1, 2006; 37(4): 1000 - 1004.
[Abstract] [Full Text] [PDF]


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NeurologyHome page
B. C. Tilley, Y. Y. Palesch, K. Kieburtz, B. Ravina, P. Huang, J. J. Elm, K. Shannon, G. F. Wooten, C. M. Tanner, G. C. Goetz, et al.
Optimizing the ongoing search for new treatments for Parkinson disease: Using futility designs
Neurology, March 14, 2006; 66(5): 628 - 633.
[Abstract] [Full Text] [PDF]


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Am. J. Neuroradiol.Home page
R. Gupta, T.G. Jovin, A. Tayal, and M.B. Horowitz
Urgent Stenting of the M2 (Superior) Division of the Middle Cerebral Artery after Systemic Thrombolysis in Acute Stroke
AJNR Am. J. Neuroradiol., March 1, 2006; 27(3): 521 - 523.
[Abstract] [Full Text] [PDF]


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StrokeHome page
The IMS Study Investigators
Hemorrhage in the Interventional Management of Stroke Study
Stroke, March 1, 2006; 37(3): 847 - 851.
[Abstract] [Full Text] [PDF]


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StrokeHome page
J. H. Choi, B. T. Bateman, S. Mangla, R. S. Marshall, S. Prabhakaran, J. Chong, J. P. Mohr, H. Mast, and J. Pile-Spellman
Endovascular Recanalization Therapy in Acute Ischemic Stroke
Stroke, February 1, 2006; 37(2): 419 - 424.
[Abstract] [Full Text] [PDF]


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CirculationHome page
Part 9: Adult Stroke
Circulation, December 13, 2005; 112(24_suppl): IV-111 - IV-120.
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CirculationHome page
Part 9: Stroke
Circulation, November 29, 2005; 112(22_suppl): III-110 - III-104.
[Full Text] [PDF]


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Am. J. Neuroradiol.Home page
S. Mangiafico, M. Cellerini, P. Nencini, G. Gensini, and D. Inzitari
Intravenous Glycoprotein IIb/IIIa Inhibitor (Tirofiban) followed by Intra-Arterial Urokinase and Mechanical Thrombolysis in Stroke
AJNR Am. J. Neuroradiol., November 1, 2005; 26(10): 2595 - 2601.
[Abstract] [Full Text] [PDF]


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Arch NeurolHome page
M. G. Lansberg, J. D. Fields, G. W. Albers, M. V. Jayaraman, H. M. Do, and M. P. Marks
Mechanical Thrombectomy Following Intravenous Thrombolysis in the Treatment of Acute Stroke
Arch Neurol, November 1, 2005; 62(11): 1763 - 1765.
[Abstract] [Full Text] [PDF]


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StrokeHome page
Y. Y. Palesch, B. C. Tilley, D. L. Sackett, K. C. Johnston, and R. Woolson
Applying a Phase II Futility Study Design to Therapeutic Stroke Trials
Stroke, November 1, 2005; 36(11): 2410 - 2414.
[Abstract] [Full Text] [PDF]


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StrokeHome page
P. Khatri, J. Neff, J. P. Broderick, J. C. Khoury, J. Carrozzella, T. Tomsick, and for the IMS-I Investigators
Revascularization End Points in Stroke Interventional Trials: Recanalization Versus Reperfusion in IMS-I
Stroke, November 1, 2005; 36(11): 2400 - 2403.
[Abstract] [Full Text] [PDF]


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StrokeHome page
U. Fischer, M. Arnold, K. Nedeltchev, C. Brekenfeld, P. Ballinari, L. Remonda, G. Schroth, and H. P. Mattle
NIHSS Score and Arteriographic Findings in Acute Ischemic Stroke
Stroke, October 1, 2005; 36(10): 2121 - 2125.
[Abstract] [Full Text] [PDF]


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StrokeHome page
C. A. Molina and J. L. Saver
Extending Reperfusion Therapy for Acute Ischemic Stroke: Emerging Pharmacological, Mechanical, and Imaging Strategies
Stroke, October 1, 2005; 36(10): 2311 - 2320.
[Abstract] [Full Text] [PDF]


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NeurologyHome page
J. Marti-Fabregas, M. Borrell, D. Cocho, R. Belvis, M. Castellanos, J. Montaner, J. Pagonabarraga, A. Aleu, L. Molina-Porcel, J. Diaz-Manera, et al.
Hemostatic markers of recanalization in patients with ischemic stroke treated with rt-PA
Neurology, August 9, 2005; 65(3): 366 - 370.
[Abstract] [Full Text] [PDF]


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StrokeHome page
M. Fisher and for the Stroke Therapy Academic Industry Roundtabl
Enhancing the Development and Approval of Acute Stroke Therapies: Stroke Therapy Academic Industry Roundtable
Stroke, August 1, 2005; 36(8): 1808 - 1813.
[Abstract] [Full Text] [PDF]


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StrokeHome page
T. A. Tomsick
Editorial Comment--Mechanical Embolus Removal: A New Day Dawning
Stroke, July 1, 2005; 36(7): 1439 - 1440.
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StrokeHome page
W. S. Smith, G. Sung, S. Starkman, J. L. Saver, C. S. Kidwell, Y.P. Gobin, H. L. Lutsep, G. M. Nesbit, T. Grobelny, M. M. Rymer, et al.
Safety and Efficacy of Mechanical Embolectomy in Acute Ischemic Stroke: Results of the MERCI Trial
Stroke, July 1, 2005; 36(7): 1432 - 1438.
[Abstract] [Full Text] [PDF]


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CMAJHome page
M. D. Hill, A. M. Buchan, and for The Canadian Alteplase for Stroke Effectivenes
Thrombolysis for acute ischemic stroke: results of the Canadian Alteplase for Stroke Effectiveness Study
Can. Med. Assoc. J., May 10, 2005; 172(10): 1307 - 1312.
[Abstract] [Full Text] [PDF]


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StrokeHome page
O. O. Zaidat, A. P. Slivka, Y. Mohammad, C. Graffagnino, T. P. Smith, D. S. Enterline, G. A. Christoforidis, M. J. Alexander, D. M.D. Landis, and J. I. Suarez
Intra-Arterial Thrombolytic Therapy in Peri-Coronary Angiography Ischemic Stroke
Stroke, May 1, 2005; 36(5): 1083 - 1084.
[Abstract] [Full Text] [PDF]


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Am. J. Neuroradiol.Home page
O. O. Zaidat, J. I. Suarez, J. L. Sunshine, R. W. Tarr, M. J. Alexander, T. P. Smith, D. S. Enterline, W. R. Selman, and D. M. D. Landis
Thrombolytic Therapy of Acute Ischemic Stroke: Correlation of Angiographic Recanalization with Clinical Outcome
AJNR Am. J. Neuroradiol., April 1, 2005; 26(4): 880 - 884.
[Abstract] [Full Text] [PDF]


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StrokeHome page
M. Saqqur, A. Shuaib, A. V. Alexandrov, M. D. Hill, S. Calleja, T. Tomsick, J. Broderick, and A. M. Demchuk
Derivation of Transcranial Doppler Criteria for Rescue Intra-arterial Thrombolysis: Multicenter Experience From the Interventional Management of Stroke Study
Stroke, April 1, 2005; 36(4): 865 - 868.
[Abstract] [Full Text] [PDF]


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StrokeHome page
D. Pelz, T. Andersson, P. Lylyk, M. Negoro, and M. Soderman
Stroke Review: Advances in Interventional Neuroradiology 2004
Stroke, February 1, 2005; 36(2): 211 - 214.
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StrokeHome page
E. A. Noser, H. M. Shaltoni, C. E. Hall, A. V. Alexandrov, Z. Garami, E. D. Cacayorin, J. K. Song, J. C. Grotta, and M. S. Campbell III
Aggressive Mechanical Clot Disruption: A Safe Adjunct to Thrombolytic Therapy in Acute Stroke?
Stroke, February 1, 2005; 36(2): 292 - 296.
[Abstract] [Full Text] [PDF]


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NeurologyHome page
M. L. Flaherty, D. Woo, B. Kissela, E. Jauch, A. Pancioli, J. Carrozzella, J. Spilker, P. Sekar, J. Broderick, and T. Tomsick
Combined IV and intra-arterial thrombolysis for acute ischemic stroke
Neurology, January 25, 2005; 64(2): 386 - 388.
[Abstract] [Full Text] [PDF]


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StrokeHome page
O. Y. Chernyshev, Z. Garami, S. Calleja, J. Song, M. S. Campbell, E. A. Noser, H. Shaltoni, C.-I Chen, Y. Iguchi, J. C. Grotta, et al.
Yield and Accuracy of Urgent Combined Carotid/Transcranial Ultrasound Testing in Acute Cerebral Ischemia
Stroke, January 1, 2005; 36(1): 32 - 37.
[Abstract] [Full Text] [PDF]


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StrokeHome page
L. Zhang, Z. G. Zhang, C. Zhang, R. L. Zhang, and M. Chopp
Intravenous Administration of a GPIIb/IIIa Receptor Antagonist Extends the Therapeutic Window of Intra-Arterial Tenecteplase-Tissue Plasminogen Activator in a Rat Stroke Model
Stroke, December 1, 2004; 35(12): 2890 - 2895.
[Abstract] [Full Text] [PDF]


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StrokeHome page
A. V. Alexandrov
Ultrasound Identification and Lysis of Clots
Stroke, November 1, 2004; 35(11_suppl_1): 2722 - 2725.
[Abstract] [Full Text] [PDF]


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Am. J. Neuroradiol.Home page
K. Y. Lee, D. I. Kim, S. H. Kim, S. I. Lee, H. W. Chung, Y. W. Shim, S. M. Kim, and J. H. Heo
Sequential Combination of Intravenous Recombinant Tissue Plasminogen Activator and Intra-Arterial Urokinase in Acute Ischemic Stroke
AJNR Am. J. Neuroradiol., October 1, 2004; 25(9): 1470 - 1475.
[Abstract] [Full Text] [PDF]