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18.05.2020 | Ausgabe 1/2021

Journal of Thrombosis and Thrombolysis 1/2021

Acute revascularization treatments for ischemic stroke in the Stroke Units of Triveneto, northeast Italy: time to treatment and functional outcomes

Journal of Thrombosis and Thrombolysis > Ausgabe 1/2021
Manuel Cappellari, Bruno Bonetti, Stefano Forlivesi, Giulia Sajeva, Marcello Naccarato, Paola Caruso, Simone Lorenzut, Giovanni Merlino, Federica Viaro, Alessio Pieroni, Bruno Giometto, Valeria Bignamini, Francesco Perini, Antonella De Boni, Michele Morra, Adriana Critelli, Carmine Tamborino, Simone Tonello, Silvia Vittoria Guidoni, Roberto L’Erario, Monia Russo, Alessandro Burlina, Emanuele Turinese, Paolo Passadore, Luca Zanet, Alberto Polo, Michelangelo Turazzini, Anna Maria Basile, Matteo Atzori, Bruno Marini, Martina Bruno, Simona Carella, Alessandro Campagnaro, Antonio Baldi, Elisa Corazza, Giampietro Zanette, Domenico Idone, Anna Gaudenzi, Roberto Bombardi, Morena Cadaldini, Salvatore Lanzafame, Franco Ferracci, Sandro Zambito, Giampietro Ruzza, Marco Simonetto, Elisabetta Menegazzo, Maela Masato, Roberta Padoan, Giulio Bozzato, Francesco Paladin, Agnese Tonon, Paolo Bovi
Wichtige Hinweise

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The online version of this article (https://​doi.​org/​10.​1007/​s11239-020-02142-3) contains supplementary material, which is available to authorized users.

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It is not known whether the current territorial organization for acute revascularization treatments in ischemic stroke patients guarantees similar time to treatment and functional outcomes among different levels of institutional stroke care. We aimed to assess the impact of time to treatment on functional outcomes in ischemic stroke patients who received intravenous thrombolysis (IVT) alone, bridging (IVT plus thrombectomy), or primary thrombectomy in level 1 and level 2 Stroke Units (SUs) in Triveneto, a geographical macroarea in Northeast of Italy. We conducted an analysis of data prospectively collected from 512 consecutive ischemic stroke patients who received IVT and/or mechanical thrombectomy in 25 SUs from September 17th to December 9th 2018. The favorable outcome measures were mRS score 0–1 and 0–2 at 3 months. The unfavorable outcome measures were mRS score 3–5 and death at 3 months. We estimated separately the possible association of each variable for time to treatment (onset-to-door, door-to-needle, onset-to-needle, door-to-groin puncture, needle-to-groin puncture, and onset-to-groin puncture) with 3-month outcome measures by calculating the odds ratios (ORs) with two-sided 95% confidence intervals (CI) after adjustment for pre-defined variables and variables with a probability value ≤ 0.10 in the univariate analysis for each outcome measure. Distribution of acute revascularization treatments was different between level 1 and level 2 SUs (p < 0.001). Among 182 patients admitted to level 1 SUs (n = 16), treatments were IVT alone in 164 (90.1%), bridging in 12 (6.6%), and primary thrombectomy in 6 (3.3%) patients. Among 330 patients admitted to level 2 SUs (n = 9), treatments were IVT alone in 219 (66.4%), bridging in 74 (22.4%), and primary thrombectomy in 37 (11.2%) patients. Rates of excellent outcome (51.4% vs 45.9%), favorable outcome (60.1% vs 58.7%), unfavorable outcome (33.3% vs 33.8%), and death (9.8% vs 11.3%) at 3 months were similar between level 1 and 2 SUs. No significant association was found between time to IVT alone (onset-to-door, door-to-needle, and onset-to-needle) and functional outcomes. After adjustment, door-to-needle time ≤ 60 min (OR 4.005, 95% CI 1.232–13.016), shorter door-to-groin time (OR 0.991, 95% CI 0.983–0.999), shorter needle-to-groin time (OR 0.986, 95% CI 0.975–0.997), and shorter onset-to-groin time (OR 0.994, 95% CI 0.988–1.000) were associated with mRS 0–1. Shorter door-to-groin time (OR 0.991, 95% CI 0.984–0.998), door-to-groin time ≤ 90 min (OR 12.146, 95% CI 2.193–67.280), shorter needle-to-groin time (OR 0.983, 95% CI 0.972–0.995), and shorter onset-to-groin time (OR 0.993, 95% CI 0.987–0.999) were associated with mRS 0–2. Longer door-to-groin time (OR 1.007, 95% CI 1.001–1.014) and longer needle-to-groin time (OR 1.019, 95% CI 1.005–1.034) were associated with mRS 3–5, while door-to-groin time ≤ 90 min (OR 0.229, 95% CI 0.065–0.808) was inversely associated with mRS 3–5. Longer onset-to-needle time (OR 1.025, 95% CI 1.002–1.048) was associated with death. Times to treatment influenced the 3-month outcomes in patients treated with thrombectomy (bridging or primary). A revision of the current territorial organization for acute stroke treatments in Triveneto is needed to reduce transfer time and to increase the proportion of patients transferred from a level 1 SU to a level 2 SU to perform thrombectomy.

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