Introduction: Acute ischemic strokes with tandem occlusions, which represent 10-20% of all ischemic strokes, have a particularly poor prognosis. Since emergent treatment of tandem lesions has not been specifically addressed in randomized trials, there is an absence of standardized management. Objective: We sought to assess the efficacy and safety of acute endovascular treatment in stroke due to tandem occlusions in our center and compare the results with previous reports. Methods: From a prospective registry we analyzed data of 99 consecutive patients (males: 77.7%, mean age ± SD: 67.5 ± 9.5 years) with stroke due to tandem occlusions who underwent treatment with emergent carotid stenting and intracranial mechanical thrombectomy. Successful recanalization was defined as a TICI score of 2b-3 and a good functional outcome was defined as a modified Rankin scale score ≤2 at 90 days. Symptomatic intracranial hemorrhage (sICH) was considered when associated with worsening on the National Institutes of Health Stroke Scale (≥4 points). Results: A successful recanalization rate was achieved in 87.8 and 48.5% of the patients had a good functional outcome. sICH and mortality rates were 12.1 and 20.2%, respectively, and 21.2% of the patients received combined treatment with intravenous thrombolysis, which did not affect neither the prognosis nor the recanalization or sICH rates. The time from symptom onset to recanalization and the

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Background: Prealbumin is a marker of malnutrition and inflammation. It has been associated with poor prognosis in cardiovascular disease, but less is known in stroke patients. Our objective was to evaluate the association of prealbumin levels at admission with prognosis in patients with stroke treated with mechanical thrombectomy. Material & Methods: Retrospective study of a prospective database of consecutive patients treated with mechanical thrombectomy. Clinical, radiological and blood parameters including serum prealbumin, and prognostic variables such as respiratory infection, in-hospital mortality, and modified Rankin scale at 3 months were collected. Results: We included 319 patients between 2018-2019. Prealbumin levels were significantly lower in patients older than 80 years, women, patients with a prestroke Rankin score >2, glomerular filtrate rate <60 ml/min and in those with atrial fibrillation. Regarding prognostic variables, prealbumin levels were not associated with respiratory infection. Low prealbumin levels were associated with poor functional prognosis (Rankin score >2), in-hospital mortality and 3-month mortality. In multivariate analysis, prealbumin was an independent risk factor associated with mortality at 3 months, OR 0.92 [0.86-0.98], p = 0.019. Conclusion: Lower prealbumin levels at admission behaved as independent predictor of long-term mortality in patients treated with mechanical thrombectomy. These results should be replicated in other cohorts.

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