Background:The COVID-19 pandemics required several changes in stroke management and it may have influenced some clinical or functional characteristics. We aimed to evaluate the effects of the COVID-19 pandemics on stroke management during the first month of Italy lockdown. In addition, we described the emergency structured pathway adopted by an Italian University Hub Stroke Unit in the cross-border Italy-Slovenia area. Methods: We analyzed admitted patients' clinical features and outcomes between 9th March 2020 and 9th April 2020 (first month of lockdown), and compared them with patients admitted during the same period in 2019. Results: Total admissions experienced a reduction of 45% during the lockdown compared to the same period in 2019 (16 vs 29, respectively), as well as a higher prevalence of severe stroke (NIHSS > 10) at admission (n = 8, 50% vs n = 8, 28%). A dramatic prevalence of stroke of unknown symptom onset was observed in 2020 (n = 8, 50% vs n = 3, 10%). During lockdown, worse functional and independence outcomes were found, despite the similar proportion of reperfused patients. Similar 'symptoms alert-to-admission' and 'door-to-treatment' times were observed. During lockdown hospitalization was shorter and fewer patients completed the stroke work-up. Conclusion:In conclusion, the adopted strategies for stroke management during the COVID-19 emergency have suggested being effective, while suffering a reduced and delayed reporting of symptoms. Therefore, we recommend raising awareness among the population against possible stroke symptoms onset. Thus, think F.A.S.T. and do not stay-at-home at all costs.

Background Efficiency of care chain response and hospital reactivity were and are challenged for stroke acute care management during the pandemic period of coronavirus disease 2019 (COVID-19) in North-Eastern Italy (Veneto, Friuli-Venezia-Giulia, Trentino-Alto-Adige), counting 7,193,880 inhabitants (ISTAT), with consequences in acute treatment for patients with ischemic stroke. Methods We conducted a retrospective data collection of patients admitted to stroke units eventually treated with thrombolysis and thrombectomy, ranging from January to May 2020 from the beginning to the end of the main first pandemic period of COVID-19 in Italy. The primary endpoint was the number of patients arriving to these stroke units, and secondary endpoints were the number of thrombolysis and/or thrombectomy. Chi-square analysis was used on all patients; furthermore, patients were divided into two cohorts (pre-lockdown and lockdown periods) and the Kruskal-Wallis test was used to test differences on admission and reperfusive therapies. Results In total, 2536 patients were included in 22 centers. There was a significant decrease of admissions in April compared to January. Furthermore, we observed a significant decrease of thrombectomy during the lockdown period, while thrombolysis rate was unaffected in the same interval across all centers. Conclusions Our study confirmed a decrease in admission rate of stroke patients in a large area of northern Italy during the lockdown period, especially during the first dramatic phase. Overall, there was no decrease in thrombolysis rate, confirming an effect of emergency care system for stroke patients. Instead, the significant decrease in thrombectomy rate during lockdown addresses some considerations of local and regional stroke networks during COVID-19 pandemic evolution.

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Hypohydration may be associated with vascular diseases, poor prognosis and worse outcomes in stroke. The underlying mechanisms have not yet been completely investigated, although some studies suggested potential associations with brain perfusion and collaterals status. Despite the potentially different mechanisms promoting serum or urine biomarkers of hypohydration, few studies have investigated both markers separately. A prospective descriptive study was conducted in stroke patients admitted to a stroke unit <4.5 h from symptoms onset. All patients underwent neurological evaluation and whole‐brain computed tomography perfusion (CTP) upon admission. Blood and urine samples were immediately collected at admission, and patients were defined as “hypohydrated” (HYP) if blood urea nitrogen‐to‐creatinine ratio was >15 and “underhydrated” (UND) if urine osmolality was >500 mOsm/kg. CTP images were processed to calculate core, penumbra, their mismatch and total hypoperfused volume. Forty‐six patients were included and were grouped according to hydration status. Despite no different NIHSS at baseline, at CTP HYP was independently associated with core‐penumbra mismatch (β: −0.157, 95% CI: −0.305 to −0.009; p = .04), while UND was independently associated with the total hypoperfused volume (β: 31.502, 95% CI: 8.522‒54.481; p = .01). Using CTP imaging, this study proposes a physiological insight of some possible mechanisms associated with the better outcomes observed in acute stroke patients when properly hydrated. These results suggest different associations between hydration status and CTP parameters depending on serum or urine biomarkers in the hyper‐acute phase and encourage the association between hydration status and stroke characteristics.

Background: Symptomatic intracerebral hemorrhage (sICH) and major bleeding can be fatal complications of intravenous thrombolysis (IVT) for acute ischemic stroke. We investigated the impact of early fibrinogen depletion after IVT on major bleeding events. Methods: This multicenter observational prospective cohort study enrolled 1678 consecutive patients receiving IVT for acute ischemic stroke at 6 Italian centers, undergoing fibrinogen concentration assessment at baseline, 2 hours and 6 hours after IVT. Fibrinogen depletion was defined as a reduction below 200 mg/dL after 2 hours from IVT, or as a reduction below 50% of baseline fibrinogen levels after 2 hours from IVT. Main outcomes were (1) sICH (National Institute of Neurological Disorders and Stroke criteria) and (2) major bleeding defined as fatal bleeding, decrease in the hemoglobin level>2 g/dL/>1 unit transfusion, or bleeding at critical site. Additional outcomes were (1) any ICH, (2) any bleeding, (3) fatal ICH, and (4) sICH according to ECASSII definition. Good functional recovery was defined as modified Rankin Scale score 0 to 2 at 3 months. Results: Overall, 1678 patients were included (mean age 72 years, 46% female). sICH (n=116) and major bleeding (n=297) were associated with lower rate of good functional recovery ( P <0.001). Despite similar fibrinogen levels at admission, fibrinogen depletion after 2 hours from IVT was more common in people with sICH, major bleeding and all additional bleeding outcomes. In the backward stepwise multivariable logistic regression model, fibrinogen depletion remained a significant predictor of sICH (OR, 1.55 [95% CI, 1.04–2.32]) and major bleeding (OR, 1.36 [95% CI, 1.03–1.8]). Thirty-one percent of sICH could be attributable to fibrinogen depletion. The association between fibrinogen depletion and worse clinical outcome at 3 months after stroke ( P =0.012) was attributable to the higher risk of major bleeding/sICH. Conclusions: Fibrinogen depletion significantly increases the risk of sICH and major bleeding after IVT for acute ischemic stroke. Fibrinogen depletion represents an independent risk factor for bleeding, and routine assessment could be considered to stratify the risk of ICH. Trials on early fibrinogen repletion are needed to investigate mitigation of bleeding risk.