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1. Etiologic and prognostic value of external carotid artery thrombus detection during endovascular therapy for anterior circulation proximal occlusions

Author

Thomas Courret, Thomas Tourdias, Jean Papaxanthos, Julien Labreuche, Florent Gariel, Jean‐Sebastien Liegey, Stephane Olindo, Pauline Renou, Jerome Berge, Xavier Barreau, Sharmila Sagnier, Patrice Menegon, Ludovic Lucas, Pierre Briau, Mathilde Poli, Sabrina Debruxelles, François Rouanet, Vincent Dousset, Igor Sibon, and Gaultier Marnat

Subjects
Neurology, Neurology (clinical)
Abstract

An early understanding of stroke mechanism may improve treatment and outcome in patients presenting with large vessel occlusion stroke (LVOS) treated with mechanical thrombectomy (MT). We aimed to investigate whether spontaneous external carotid artery (ECA) embolism detection during MT is associated with stroke etiology and clinical outcome.We retrospectively reviewed our prospectively maintained institutional database including consecutive patients with anterior circulation LVOS treated with MT between January 2015 and August 2020.An ECA embolus was detected in 68 of 1298 patients (5.2%). The kappa coefficient for interobserver agreement was 0.89 (95% confidence interval [CI] 0.82-0.95). ECA embolism was significantly associated with intracranial internal carotid artery (ICA) occlusion (p 0.001), cardioembolic etiology (p 0.001) and a lower clot burden score (p 0.001). Day-1 variation of National Institutes of Health Stroke Scale score (adjusted odds ratio [OR] -2.7, 95% CI -4.9 to 0.3; p = 0.021) and delta Alberta Stroke Program Early Computed Tomography Score (adjusted OR 0.9, 95% CI 0.2 to 1.5; p = 0.004) were worse among patients with ECA emboli. There was no significant difference in 90-day functional outcome between groups (adjusted OR 0.8, 95% CI 0.42 to 1.52; p = 0.50).In patients with anterior circulation LVOS treated with MT, ECA embolism was significantly associated with cardioembolic etiology, high thrombus burden and proximal intracranial ICA occlusions. This underexplored angiographic pattern might provide a valuable etiologic clue to the underlying cause of anterior circulation LVOS and may also help determine the appropriate revascularization strategy.

Published
2022

2. 24-Hour Carotid Stent Patency and Outcomes After Endovascular Therapy: A Multicenter Study

Author

Julien Allard, François Delvoye, Raoul Pop, Julien Labreuche, Benjamin Maier, Gaultier Marnat, Igor Sibon, François Zhu, Bertrand Lapergue, Arturo Consoli, Laurent Spelle, Christian Denier, Sébastien Richard, Michel Piotin, Benjamin Gory, Mikael Mazighi, Raphael Blanc, Hocine Redjem, Simon Escalard, Jean-Philippe Dessilles, Stanislas Smajda, Hebert Solène, Mikael Obadia, Candice Sabben, Seners Pierre, Raynouard Igor, Ovide Corabianu, Thomas de Broucker, Eric Manchon, Guillaume Taylor, Malek Ben Maacha, Laurie-Anne Thion, Lecler Augustin, Savatovsjy Julien, Adrien Wang, Serge Evrard, Maya Tchikviladze, Nadia Ajili, David WeisenburgerLile, Lucas Gorza, Géraldine Buard, Oguzhan Coskun, Federico Di Maria, Georges Rodesh, Sergio Zimatore, Morgan Leguen, Julie Gratieux, Fernando Pico, Haja Rakotoharinandrasana, Philippe Tassan, Roxanna Poll, Sylvie Marinier, Xavier Barreau, Jérôme Berge, Patrice Menegon, Ludovic Lucas, Stéphane Olindo, Pauline Renou, Sharmila Sagnier, Mathilde Poli, Sabrina Debruxelles, François Rouanet, Thomas Tourdias, Jean-Sebastien Liegey, Pierre Briau, Nicolas Pangon, Alexis Coussy, Lisa Papillon, Jean Papaxanthos, Lili Detraz, Benjamin Daumas-Duport, Pierre-Louis Alexandre, Monica Roy, Cédric Lenoble, Hubert Desal, Benoît Guillon, Solène de Gaalon, Cécile Preterre, Serge Bracard, René Anxionnat, Marc Braun, Anne-Laure Derelle, Romain Tonnelet, Liang Liao, Emmanuelle Schmitt, Sophie Planel, Lisa Humbertjean, Jean-Christophe Lacour, Nolwenn Riou-Comte, Marcela Voicu, Lionel Alb, Marie Reitter, Madalina Brezeanu, Agnès Masson, Adriana Tabarna, Iona Podar, Francisco Macian-Montoro, Suzanna Saleme, Charbel Mounayer, Aymeric Rouchaud, Vincent Costalat, Caroline Arquizan, Cyril Dargazanli, Grégory Gascou, Pierre-Henri Lefèvre, Imad Derraz, Carlos Riquelme, Nicolas Gaillard, Isabelle Mourand, Lucas Corti, Federico Cagnazzo, Adrien Ter Schiphorst, Jean-Christophe Ferre, Hélène Raoult, Thomas Ronziere, Maria Lassale, Christophe Paya, Jean-Yves Gauvrit, Clément Tracol, and Sophie Langnier-Lemercier

Subjects
Advanced and Specialized Nursing, Neurology (clinical), Cardiology and Cardiovascular Medicine
Abstract

Background: Management of extracranial internal carotid artery steno-occlusive lesion during endovascular therapy remains debated. Stent occlusion within 24 hours of endovascular therapy is a frequent event after acute carotid artery stenting, and we currently lack large population results. We investigated the incidence, predictors, and clinical impact of stent occlusion after acute carotid artery stenting in current clinical practice. Methods: Patients treated by endovascular therapy with acute carotid artery stenting between 2015 and 2019 in 5 large-volume endovascular-capable centers were retrospectively analyzed. Patients were separated in 2 groups according to the stent patency at 24 hours after carotid artery stenting. We compared baseline characteristics, treatment modalities, and clinical outcome depending on 24-hour stent patency. Primary end point was favorable outcome, defined as a modified Rankin Scale score 0–2 at 3 months. Results: A stent occlusion was observed in 47/225 patients (20.9%). Patients with stent patency had a lower baseline National Institutes of Health Stroke Scale (median [interquartile range]: 13 [7–17] versus 18 [12–21]) and had more often stroke of atherothrombotic origin (77.0% versus 53.2%). A higher stent patency rate was found for patients treated with P2Y 12 antagonists at the acute phase (odds ratio [OR]‚ 2.95 [95% CI‚ 1.10–7.91]; P =0.026) and treated with angioplasty (OR‚ 2.42 [95% CI‚ 1.24–4.67]; P =0.008). A better intracranial angiographic reperfusion was observed in patients with 24-hour stent patency compared with patients without stent patency (OR‚ 8.38 [95% CI‚ 3.07–22.78]; P P P =0.009). Conclusions: One out of 5 patients treated with carotid artery stenting during endovascular therapy presented a stent occlusion within 24 hours. This event was associated with worse functional outcome. Stroke etiology, P2Y 12 antagonist administration, quality of intracranial reperfusion, and angioplasty were associated with 24-hour stent patency.

Published
2022

3. Impact of Strategy on Clinical Outcome in Large Vessel Occlusion Stroke Successfully Reperfused: ETIS Registry Results

Author

Marian Douarinou, Benjamin Gory, Arturo Consoli, Bertrand Lapergue, Maeva Kyheng, Julien Labreuche, Mohammad Anadani, Raphael Blanc, Gaultier Marnat, Romain Bourcier, Igor Sibon, François Eugène, Stéphane Vannier, Gérard Audibert, Gioia Mione, Sébastien Richard, Michel Piotin, Hocine Redjem, Simon Escalard, Jean-Philippe Dessilles, François Delvoye, Stanislas Smajda, Benjamin Maier, Hebert Solène, Mikael Mazighi, Mikael Obadia, Candice Sabben, Seners Pierre, Raynouard Igor, Ovide Corabianu, Thomas de Broucker, Eric Manchon, Guillaume Taylor, Malek Ben Maacha, Laurie-Anne Thion, Lecler Augustin, Savatovsjy Julien, Adrien Wang, Serge Evrard, Maya Tchikviladze, Nadia Ajili, David WeisenburgerLile, Lucas Gorza, Géraldine Buard, Oguzhan Coskun, Federico Di Maria, Georges Rodesh, Sergio Zimatore, Morgan Leguen, Julie Gratieux, Fernando Pico, Haja Rakotoharinandrasana, Philippe Tassan, Roxanna Poll, Sylvie Marinier, Florent Gariel, Xavier Barreau, Jérôme Berge, Patrice Menegon, Ludovic Lucas, Stéphane Olindo, Pauline Renou, Sharmila Sagnier, Mathilde Poli, Sabrina Debruxelles, François Rouanet, Thomas Tourdias, Jean-Sebastien Liegey, Pierre Briau, Nicolas Pangon, Lili Detraz, Benjamin Daumas-Duport, Pierre-Louis Alexandre, Monica Roy, Cédric Lenoble, Hubert Desal, Benoît Guillon, Solène de Gaalon, Cécile Preterre, Serge Bracard, René Anxionnat, Marc Braun, Anne-Laure Derelle, Romain Tonnelet, Liang Liao, François Zhu, Emmanuelle Schmitt, Sophie Planel, Lisa Humbertjean, Jean-Christophe Lacour, Nolwenn Riou- Comte, Marcela Voicu, Lionel Alb, Marie Reitter, Madalina Brezeanu, Agnès Masson, Adriana Tabarna, Iona Podar, Francisco Macian-Montoro, Suzanna Saleme, Charbel Mounayer, Aymeric Rouchaud, Vincent Costalat, Caroline Arquizan, Cyril Dargazanli, Grégory Gascou, Pierre-Henri Lefèvre, Imad Derraz, Carlos Riquelme, Nicolas Gaillard, Isabelle Mourand, Lucas Corti, Federico Cagnazzo, Adrien ter Schiphorst, Jean-Christophe Ferre, Hélène Raoult, Thomas Ronziere, Maria Lassale, Christophe Paya, Jean-Yves Gauvrit, Clément Tracol, and Sophie Langnier-Lemercier

Subjects
medicine.medical_specialty, Brain Ischemia, Internal medicine, medicine, Humans, Prospective Studies, Registries, Acute ischemic stroke, Stroke, Ischemic Stroke, Advanced and Specialized Nursing, Cerebral infarction, business.industry, Endovascular Procedures, medicine.disease, Cerebrovascular Disorders, Treatment Outcome, Propensity score matching, Ischemic stroke, Reperfusion, Functional independence, Cardiology, Neurology (clinical), France, Cardiology and Cardiovascular Medicine, business, Large vessel occlusion
Abstract

Background and Purpose: Approximately half of the patients with acute ischemic stroke due to anterior circulation large vessel occlusion do not achieve functional independence despite successful reperfusion. We aimed to determine influence of reperfusion strategy (bridging therapy, intravenous thrombolysis alone, or mechanical thrombectomy alone) on clinical outcomes in this population. Methods: From ongoing, prospective, multicenter, observational Endovascular Treatment in Ischemic Stroke registry in France, all patients with anterior circulation large vessel occlusion who achieved successful reperfusion (modified Thrombolysis in Cerebral Infarction 2b-3) following reperfusion therapy were included. Primary end point was favorable outcome, defined as 90-day modified Rankin Scale score ≤2. Patient groups were compared using those treated with bridging therapy as reference. Differences in baseline characteristics were reduced after propensity score-matching, with a maximum absolute standardized difference of 14% for occlusion site. Results: Among 1872 patients included, 970 (51.8%) received bridging therapy, 128 (6.8%) received intravenous thrombolysis alone, and the remaining 774 (41.4%) received MT alone. The rate of favorable outcome was comparable between groups. Excellent outcome (90-day modified Rankin Scale score 0–1) was achieved more frequently in the bridging therapy group compared with the MT alone (odds ratio after propensity score-matching, 0.70 [95% CI, 0.50–0.96]). Regarding safety outcomes, hemorrhagic complications were similar between the groups, but 90-day mortality was significantly higher in the MT alone group compared with the bridging therapy group (odds ratio, 1.60 [95% CI, 1.09–2.37]). Conclusions: This real-world observational study of patients with anterior circulation large vessel occlusion demonstrated a similar rate of favorable outcome following successful reperfusion with different therapeutic strategies. However, our results suggest that bridging therapy compared with MT alone is significantly associated with excellent clinical outcome and lower mortality. REGISTRATION: URL: https://www.clinicaltrials.gov ; Unique identifier: NCT03776877.

Published
2021

4. Impact of Prior Antiplatelet Therapy on Outcomes After Endovascular Therapy for Acute Stroke: Endovascular Treatment in Ischemic Stroke Registry Results

Author

Marie Couture, Stephanos Finitsis, Gaultier Marnat, Sébastien Richard, Romain Bourcier, Pacôme Constant-dits-Beaufils, Cyril Dargazanli, Caroline Arquizan, Mikaël Mazighi, Raphaël Blanc, François Eugène, Stéphane Vannier, Laurent Spelle, Christian Denier, Emmanuel Touzé, Charlotte Barbier, Suzana Saleme, Francisco Macian, Charlotte Rosso, Frédéric Clarençon, Olivier Naggara, Guillaume Turc, Ozlem Ozkul-Wermester, Chrysanthi Papagiannaki, Alain Viguier, Christophe Cognard, Anthony Lebras, Sarah Evain, Valérie Wolff, Raoul Pop, Serge Timsit, Jean-Christophe Gentric, Frédéric Bourdain, Louis Veunac, Bertrand Lapergue, Arturo Consoli, Benjamin Gory, Igor Sibon, Michel Piotin, Hocine Redjem, Simon Escalard, Jean-Philippe Dessilles, François Delvoye, Stanislas Smajda, Benjamin Maier, Hebert Solène, Mikael Obadia, Candice Sabben, Pierre Seners, Igor Raynouard, Ovide Corabianu, Thomas de Broucker, Eric Manchon, Guillaume Taylor, Malek Ben Maacha, Laurie-Anne Thion, Augustin Lecler, Julien Savatovsjy, Adrien Wang, Serge Evrard, Maya Tchikviladze, Nadia Ajili, David WeisenburgerLile, Lucas Gorza, Géraldine Buard, Oguzhan Coskun, Federico Di Maria, Georges Rodesh, Sergio Zimatore, Morgan Leguen, Julie Gratieux, Fernando Pico, Haja Rakotoharinandrasana, Philippe Tassan, Roxanna Poll, Sylvie Marinier, Florent Gariel, Xavier Barreau, Jérôme Berge, Patrice Menegon, Ludovic Lucas, Stéphane Olindo, Pauline Renou, Sharmila Sagnier, Mathilde Poli, Sabrina Debruxelles, François Rouanet, Thomas Tourdias, Jean-Sebastien Liegey, Pierre Briau, Nicolas Pangon, Lili Detraz, Benjamin Daumas-Duport, Pierre-Louis Alexandre, Monica Roy, Cédric Lenoble, Hubert Desal, Benoît Guillon, Solène de Gaalon, Cécile Preterre, Serge Bracard, René Anxionnat, Marc Braun, Anne-Laure Derelle, Liang Liao, Romain Tonnelet, François Liao, Emmanuelle Zhu, Sophie Schmitt, Sébastien Planel, Lisa Richard, Gioia Humbertjean, Jean-Christophe Mione, Nolwenn Lacour, Gérard Riou-Comte, Marcela Audibert, Lionel Voicu, Marie Alb, Madalina Reitter, Agnès Brezeanu, Adriana Masson, Iona Tabarna, Sarah Podar, Fatiha Guy, Fatiha Bechiri, Charbel Mounayer, Aymeric Rouchaud, Laetitia Gimenez, Alexandre Cosnard, Vincent Costalat, Grégory Gascou, Pierre-Henri Lefèvre, Imad Derraz, Carlos Riquelme, Nicolas Gaillard, Isabelle Mourand, Lucas Corti, Federico Cagnazzo, Adrien ter Schiphorst, Jean-Christophe Ferre, Hélène Raoult, Thomas Ronziere, Maria Lassale, Christophe Paya, Jean-Yves Gauvrit, Clément Tracol, Sophie Langnier-Lemercier, Axelle Maurice, Sabrina Cochennec, Mélanie Pinault, Eimad Shotar, Nader Sourour, Stéphanie Lenck, Kévin Premat, Yves Samson Anne Léger, Sophie Crozier, Flore Baronnet, Sonia Alamowitch, Laure Bottin, Mathon Yger, Vincent Degos, Olivier Chassin, Vanessa Chalumeau, Jildaz Caroff, Laura Venditti, Mariana Sarov, Nicolas Legris, Wagih Ben Hassen, Grégoire Boulouis, Christine Rodriguez-Régent, Denis Trystram, Basile Kerleroux, Valérie Domigo, Catherine Lamy, Julia Birchenall, Clothilde Isabel, François Lun, Anne Christine Januel, Jean-Marc Olivot, Nicolas Raposo, Fabrice Bonneville, Jean François Albucher, Lionel Calviere, Jean Darcourt, Guillaume Bellanger, Philippe Tall, Romain Schneckenburger, Marion Boulanger, Julien Cogez, Sophie Guettier, Maxime Gauberti, Julien Ognard, Francois Mathias Merrien., Ozlem Ozku Wermester, Evelyne Massardier, Aude Triquenot, Margeaux Lefebvre, Patricia Bernady, Laurent Lagoarde-Segot, Hélène Cailliez, David Higue, Veronique Quenardelle, Valerie Lauer, Roxana Gheoca, Irene Pierre-Paul, Remy Beaujeux, Dan Mihoc, Monica Manisor, Julien Pottecher, Alain Meyer, Thiên-Nga Chamaraux-Tran, Anthony Le Bras, Arnaud Le Guen, Norbert Nighoghossian, Roberto Riva, Omer Eker, Francis turjman, Laurent Derex, Tae-Hee Cho, Laura Mechtouff, Anne Claire Lukaszewicz, Frédéric Philippeau, Serkan Cakmak, Karine Blanc-Lasserre, and Anne-Evelyne Vallet

Subjects
Adult, Male, medicine.medical_specialty, Endovascular therapy, Brain ischemia, Internal medicine, medicine, Humans, Registries, Endovascular treatment, Prospective cohort study, Acute ischemic stroke, Acute stroke, Aged, Ischemic Stroke, Advanced and Specialized Nursing, business.industry, Endovascular Procedures, Middle Aged, medicine.disease, Embolic stroke, Treatment Outcome, Ischemic stroke, Cardiology, Female, Neurology (clinical), Cardiology and Cardiovascular Medicine, business, Platelet Aggregation Inhibitors
Abstract

Background and Purpose: The influence of prior antiplatelet therapy (APT) uses on the outcomes of patients with acute ischemic stroke treated with endovascular therapy is unclear. We compared procedural and clinical outcomes of endovascular therapy in patients on APT or not before stroke onset. Methods: We analyzed 2 groups from the ongoing prospective multicenter Endovascular Treatment in Ischemic Stroke registry in France: patients on prior APT (APT+) and patients without prior APT (APT−) treated by endovascular therapy, with and without intravenous thrombolysis. Multilevel mixed-effects logistic models including center as random effect were used to compare angiographic (rates of reperfusion at the end of procedure, procedural complications) and clinical (favorable and excellent outcome, 90-day all-cause mortality, and hemorrhagic complications) outcomes according to APT subgroups. Comparisons were adjusted for prespecified confounders (age, admission National Institutes of Health Stroke Scale score, Alberta Stroke Program Early CT Score, intravenous thrombolysis, and time from onset to puncture), as well as for meaningful baseline between-group differences. Results: A total of 2939 patients were analyzed, of whom 877 (29.8%) were on prior APT. Patients with prior APT were older, had more frequent vascular risk factors, cardioembolic stroke mechanism, and prestroke disability. Rates of complete reperfusion (37.9% in the APT− group versus 42.7 % in the APT+ group; aOR, 1.09 [95% CI, 0.88–1.34]; P =0.41) and periprocedural complication (16.9% versus 13.3%; aOR, 0.90 [95% CI, 0.7–1.2]; P =0.66) did not differ between the two groups. Symptomatic intracerebral hemorrhage (aOR, 0.93 [95% CI, 0.63–1.37]; P =0.73), 3 months favorable clinical outcome (modified Rankin Scale score of 0–2; aOR, 0.98 [95% CI, 0.77–1.25]; P =0.89), and mortality (aOR, 0.95 [95% CI, 0.72–1.26]; P =0.76) at 90 days did not differ between the groups. Conclusions: Prior APT does not influence angiographic and functional outcomes following endovascular therapy and should not be taken into account for acute revascularization strategies.

Published
2021

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