Browsing by Author "Peeters, A"
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- Dabigatran Initiation in Patients with Non-Valvular AF and First Acute Ischaemic Stroke: a Retrospective Observational Study from the SITS RegistryPublication . Escudero-Martinez, I; Mazya, M; Teutsch, C; Lesko, N; Gdovinova, Z; Barbarini, L; Fryze, W; Karlinski, M; Kobayashi, A; Krastev, G; Paiva Nunes, A; Pasztoova, K; Peeters, A; Sobolewski, P; Vilionskis, A; Toni, D; Ahmed, NBackground and objective: The optimal timing for initiation of dabigatran after acute ischaemic stroke (AIS) is not established. We aimed to evaluate initiation timing and clinical outcomes of dabigatran in AIS patients with non-valvular atrial fibrillation (NVAF). Design: Retrospective study based on prospectively collected data in SITS (Safe Implementation of Treatment in Stroke) Thrombolysis and Thrombectomy Registry from July 2014 to July 2018. Participants: European NVAF patients (≥18 years) hospitalised after first-ever ischaemic stroke. Setting: A multinational, observational monitoring register. Intervention: Dabigatran initiation within 3 months after the ischaemic stroke. Primary and secondary outcomes: The primary outcome was time from first-ever ischaemic stroke (index event) to dabigatran initiation. Additional outcomes included physicians' reasons for delaying dabigatran initiation beyond acute hospital discharge and outcomes within 3 months of index event. Methods: We identified patients with NVAF who received dabigatran within 3 months of the index event. We performed descriptive statistics for baseline and demographic data and clinical outcomes after dabigatran initiation. Results: In total, 1489 patients with NVAF received dabigatran after AIS treated with thrombolysis and/or thrombectomy. Of these, 1240 had available initiation time. At baseline, median age was 75 years; 53% of patients were women, 15% were receiving an oral anticoagulant, 29% acetylsalicylic acid and 4% clopidogrel. Most patients (82%) initiated dabigatran within 14 days after the index event. Patients initiating earlier had lower stroke severity from median NIHSS 8 (IQR 6-13) if initiated within 7 days to NIHSS 15 (9-19) if initiated between 28 days and 3 months. Most common reasons for delaying initiation were haemorrhagic transformation or intracranial haemorrhage, stroke severity and infarct size. Few thrombotic/haemorrhagic events occurred within 3 months after the index event (20 of 926 patients, 2.2% with the available data). Conclusions: Our findings, together with previous observational studies, indicate that dabigatran initiated within the first days after an AIS is safe in patients treated with intravenous thrombolysis, endovascular thrombectomy or both.
- Magnitude of Blood Pressure Change and Clinical Outcomes after Thrombectomy in SAtroke Caused by Large Artery OcclusionPublication . Anadani, M; Matusevicius, M; Tsivgoulis, G; Peeters, A; Nunes, AP; Mancuso, M; Roffe, C; Havenon, A; Ahmed, NBackground: Extremes of both high and low systolic blood pressure (SBP) after mechanical thrombectomy (MT) in large artery occlusion stroke are known predictors of unfavorable outcome. However, the effect of SBP change (∆SBP) during the first 24 h on thrombectomy outcomes remains unclear. We aimed to investigate the association between ∆SBP at different time intervals and thrombectomy outcomes. Methods: We analyzed MT-treated patients registered in the SITS International Stroke Thrombectomy Registry from January 1, 2014 to September 3, 2019. Primary outcome was 3-month unfavorable outcome (modified Rankin scale scores 3-6). We defined ∆SBP as the mean SBP of a given time interval after MT (0-2, 2-4, 4-12, 12-24 h) minus admission SBP. Multivariable mixed logistic regression models were used to adjust for known confounders and center as random effect. Subgroup analyses were included to contrast specific subpopulations. Restricted cubic splines were used to model the associations. Results: The study population consisted of 5835 patients (mean age 70 years, 51% male, median NIHSS 16). Mean ∆SBP was -12.3, -15.7, -17.2, and -16.9 mmHg for the time intervals 0-2, 2-4, 4-12 h, and 12-24 h, respectively. Higher ∆SBP was associated with unfavorable outcome at 0-2 h (odds ratio 1.065, 95% confidence interval 1.014-1.118), 2-4 h (1.140, 1.081-1.203), 4-12 h (1.145, 1.087-1.203), and 12-24 h (1.145, 1.089-1.203), for every increase of 10 mmHg. Restricted cubic spline models suggested that increasing ∆SBP was associated with unfavorable outcome, with higher values showing increased risk of unfavorable outcome. Conclusion: SBP increase after thrombectomy in large artery occlusion stroke is associated with poor functional outcome.
- Safety and Outcomes of Routine Endovascular Thrombectomy in Large Artery Occlusion Recorded in the SITS Register: An Observational StudyPublication . Ahmed, N.; Mazya, M.; Paiva Nunes, A; Moreira, T; Ollikainen, JP; Escudero‐Martinez, I; Bigliardi, G; Dorado, L; Dávalos, A; Egido, JA; Tassi, R; Strbian, D; Zini, A; Nichelli, P; Herzig, R; Jurák, L; Hurtikova, E; Tsivgoulis, G; Peeters, A; Nevšímalová, M; Brozman, M; Cavallo, R; Lees, KR; Mikulik, R; Toni, D; Holmin, SBackground and objective: We aimed to evaluate the safety and outcomes of thrombectomy in anterior circulation acute ischaemic stroke recorded in the SITS-International Stroke Thrombectomy Register (SITS-ISTR) and compare them with pooled randomized controlled trials (RCTs) and two national registry studies. Methods: We identified centres recording ≥10 consecutive patients in the SITS-ISTR with at least 70% of available modified Rankin Scale (mRS) at 3 months during 2014-2019. We defined large artery occlusion as intracranial internal carotid artery, first and second segment of middle cerebral artery and first segment of anterior cerebral artery. Outcome measures were functional independence (mRS score 0-2) and death at 3 months and symptomatic intracranial haemorrhage (SICH) per modified SITS-MOST. Results: Results are presented in the following order: SITS-ISTR, RCTs, MR CLEAN Registry and German Stroke Registry (GSR). Median age was 73, 68, 71 and 75 years; baseline NIHSS score was 16, 17, 16 and 15; prior intravenous thrombolysis was 62%, 83%, 78% and 56%; onset to reperfusion time was 289, 285, 267 and 249 min; successful recanalization (mTICI score 2b or 3) was 86%, 71%, 59% and 83%; functional independence at 3 months was 45.5% (95% CI: 44-47), 46.0% (42-50), 38% (35-41) and 37% (35-41), respectively; death was 19.2% (19-21), 15.3% (12.7-18.4), 29.2% (27-32) and 28.6% (27-31); and SICH was 3.6% (3-4), 4.4% (3.0-6.4), 5.8% (4.7-7.1) and not available. Conclusion: Thrombectomy in routine clinical use registered in the SITS-ISTR showed safety and outcomes comparable to RCTs, and better functional outcomes and lower mortality than previous national registry studies.