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Vol. 43. Issue 3.
Pages 187-188 (April 2019)
Vol. 43. Issue 3.
Pages 187-188 (April 2019)
Letter to the Editor
DOI: 10.1016/j.medine.2018.07.010
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Mechanical thrombectomy in acute ischemic stroke, knowing our results
Trombectomía mecánica en el ictus isquémico agudo, conociendo nuestros resultados
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F. Pino Sánchez
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paquipin@gmail.com

Corresponding author.
, A. Fernández Carmon, M.V. Muñoz Marina, E. Fernández Mondéja
Unidad de Cuidados Intensivos Neurotraumatológica, Hospital Virgen de las Nieves, Granada, Spain
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Dear Editor,

After reading with interest the article recently published on Medicina Intensiva by Viña-Soria et al.1 “Results and functional outcomes of acute ischemic stroke patients who underwent mechanical thrombectomy” (“Resultados y evolución funcional de pacientes críticos con ictus isquémico sometidos a trombectomía mecánica” in Spanish), we would like to make a few contributions here.

This paper shows the outcomes of a pioneering unit in Spain where they have been prescribing endovascular treatment (EVT) to treat acute ischemic stroke patients for quite a few years. This therapy that has recently proven superior to therapy with systemic fibrinolysis only.2

Intensivists play a fundamental role in the management of neuro-critically ill patients and, in our opinion, they should be part of the management and decision-making process regarding therapy.

The series published by Viña-Soria et al. includes a one-year follow-up of 60 patients with stroke plus an indication for EVT admitted to our intensive care unit (ICU) from 2012 through 2014 (29% of the total number of patients treated according to the applicable criteria); patients in poor neurological condition and/or needing support therapy at the discretion of the treating neurologist. A priori this may seem like a limitation to extrapolate these outcomes to the clinical practice given the lack of a specific inclusion criterion.

The management of this condition is evolving rapidly with constant updates of clinical guidelines – the most recent ones published back in January 2018.3 The actual indication for EVT (up to 24h after symptom onset) is significantly less strict than the one shown in this series. On the other hand, fibrinolysis should be prescribed as long as it has an indication and only if it does not delay the implementation of the EVT and without having to wait for the patient's clinical response. Recent studies suggest the benefits of combined therapy showing a higher percentage of good functional outcomes, fewer complications and lower mortality rates.4 As a matter of fact, the study conducted by Viña-Soria et al. shows a low rate of fibrinolysis compared to other studies published on this regard.

Our ICU provides care to all patients with strokes who are eligible for reperfusion. In a series analyzed from December 2016 through December 2017, 206 patients were admitted to the ICU: 42% (86 patients) received fibrinolysis, 23% (47 patients) combined therapy, and 35% (73 patients) underwent thrombectomy procedures only. As the outcomes published by Viña-Soria show, patients treated with EVT experience better clinical and functional improvement. In our series, functional improvement in the group of patients who received combined therapy was particularly remarkable compared to the group of patients who received thrombectomy only, mRS2 of 52% in the former group versus 27% in the second group, and a lower mortality rate 4% versus 15%, respectively. These findings are consistent with the aforementioned studies.5

In our opinion, the data published are valuable, especially including a one-year follow-up, yet they could be more useful if they showed the global outcomes of all patients treated with EVT and if these outcomes actually vary compared to patients treated according to the new recommendations. It would be interesting to conduct one multicenter study with a sample large enough to be able to draw conclusions on the managements and outcomes of strokes treated with EVT.

References
[1]
L. Viña Soria, L. Martín Iglesias, L. López Amor, I. Astola Hidalgo, R. Rodríguez García, L. Forcelledo Espina, et al.
Results and functional outcomes of acute ischemic stroke patients who underwent mechanical thrombectomy admitted to intensive care unit.
Med Intensiva, 42 (2018), pp. 274-282
[in English, Spanish]
[2]
W.J. Powers, C.P. Derdeyn, J. Biller, C.S. Coffey, B.L. Hoh, E.C. Jauch, American Heart Association Stroke Council, et al.
2015 American Heart Association/American Stroke Association focused update of the 2013 guidelines for the early management of patients with acute ischemic stroke regarding endovascular treatment: a guideline for healthcare professionals from the American Heart Association/American Stroke Association.
Stroke, 46 (2015), pp. 3020-3035
[3]
W.J. Powers, A.A. Rabinstein, T. Ackerson, O.M. Adeoye, N.C. Bambakidis, K. Becker, American Heart Association Stroke Council, et al.
2018 guidelines for the early management of patients with acute ischemic stroke: a guideline for healthcare professionals from the American Heart Association/American Stroke Association.
[4]
E.A. Mistry, A.M. Mistry, M.O. Nakawah, R.V. Chitale, R.F. James, J.J. Volpi, et al.
Mechanical thrombectomy outcomes with and without intravenous thrombolysis in stroke patients: a meta-analysis.
Stroke, 48 (2017), pp. 2450-2456
[5]
D. García Huertas, F.I. Pino Sánchez, E. García Bautista, I. Cruz Valero, A. Pérez Bailón, F. Guerrero López, et al.
Estudio comparativo de pacientes ingresados en Cuidados Intensivos Neurotraumatológicos con ictus isquémico agudo según el tratamiento de reperfusión recibido.
Med Intensiva, 42 (2018), pp. 30-31

Please cite this article as: Pino Sánchez F, Fernández Carmon A, Muñoz Marina MV, Fernández Mondéja E. Trombectomía mecánica en el ictus isquémico agudo, conociendo nuestros resultados. Med Intensiva. 2019;43:187–188.

Copyright © 2018. Elsevier España, S.L.U. and SEMICYUC
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