Effects of the COVID-19 pandemic on reperfusion therapy for acute ischemic stroke patients in Huizhou City, China.

BACKGROUND AND PURPOSE: The COVID-19 pandemic has impacted the reperfusion therapy for acute ischemic stroke (AIS) patients. Huizhou City utilized its experience with the SARS and MERS breakouts to establish a reperfusion treatment program for AIS patients. METHOD: This is a retrospective study on 8 certified stroke hospitals in Huizhou City from January 2020 to May 2020. We analyzed the number of AIS patients with reperfusion therapy, stroke type (anterior/posterior circulation stroke), modes of transport to hospital, NIHSS score, onset to door time (ODT), door to needle time (DNT), and door to puncture time (DPT). The analysis was compared with baseline data from the same time period in 2019. RESULT: In 2020, the number of AIS patients receiving reperfusion therapy decreased (315 vs. 377), NIHSS score increased [8 (4, 15) vs. 7 [ (1, 2)], P = 0.024], ODT increased [126 (67.5, 210.0) vs. 120.0 (64.0, 179.0), P = 0.032], and DNT decreased [40 (32.5, 55) vs. 48 (36, 59), P = 0.003]. DPT did not change. Seventy percent of AIS patients indicated self-visit as their main mode of transport to the hospital. In both periods, mild stroke patients were more likely to self-visit than utilize emergency systems [2019: 152 (57.6%) vs. 20 (45.6%), P = 0.034; 2020: 123 (56.9%) vs. 5 (14.7%), P < 0.001]. The NIHSS score for self-visiting patients was lower for patients who utilized the ambulance system in both years [self-visit: 6.00 (3.00, 12.00), ambulance: 14.00 (9.00, 19.00), P < 0.001]. The volume of reperfusion patients was lower in 2020; however, the decrease was only significant (P = 0.028) in February 2020. CONCLUSION: During the COVID-19 pandemic in 2020, the number of AIS patients receiving reperfusion therapy significantly decreased when compared to the same period in 2019. The patients' condition increased severity, ODT increased, and the DNT decreased. DPT was not significant for self-visiting and ambulance patients. Moderate to severe stroke patients were more likely to utilize ambulance services.

Impact of COVID-19 pandemic on acute stroke care: facing an epidemiological paradox with a paradigm shift.

BACKGROUND: During the coronavirus disease 2019 (COVID-19) outbreak, a decrease of stroke's hospital admissions and reperfusion therapy has been reported worldwide. This retrospective observational study assessed the volume of stroke cases managed in the Emergency Department (ED) and reperfusion therapies in an Italian stroke network with a high incidence of COVID-19, particularly to evaluate if the in-hospital rerouting and the switch from a drip-and-ship to a mothership model could assure an adequate volume of acute treatments. METHODS: We compared data from March 2020 with those from previous years and formulated five PICO questions regarding (1) incidence of stroke cases in the ED; (2) relation between stroke cases and COVID-19; (3) differences in the number of reperfusion therapies, (4) in the call-to-needle and door-to-needle times for intravenous thrombolysis, and (5) in the call-to-groin and door-to-groin times for thrombectomy. RESULTS: We found (1) a 28% decreased of confirmed stroke cases managed in the ED, (2) a negative correlation between stroke cases in ED and COVID-19 progression (rs = - .390, p = .030), and (3) a similar number of treatments in March 2020 and March 2019. The adoption of the mothership model (4) did not delay alteplase infusion (median call-to-needle p = .126, median door-to-needle p = .142) but led to (5) a significant reduction in median call-to-groin (p = .018) and door-to-groin times (p = .010). CONCLUSION: The "hospital avoidance" of stroke patients during the "stay-at-home" appeals needs to be considered for future public health campaigns. A prompt reorganization of the stroke network can guarantee optimal performances at times of crisis.

Acute Stroke in Times of the COVID-19 Pandemic: A Multicenter Study.

BACKGROUND AND PURPOSE: This study aims to assess the number of patients with acute ischemic cerebrovascular events seeking in-patient medical emergency care since the implementation of social distancing measures in the coronavirus disease 2019 (COVID-19) pandemic. METHODS: In this retrospective multicenter study, data on the number of hospital admissions due to acute ischemic stroke or transient ischemic attack and numbers of reperfusion therapies performed in weeks 1 to 15 of 2020 and 2019 were collected in 4 German academic stroke centers. Poisson regression was used to test for a change in admission rates before and after the implementation of extensive social distancing measures in week 12 of 2020. The analysis of anonymized regional mobility data allowed for correlations between changes in public mobility as measured by the number and length of trips taken and hospital admission for stroke/transient ischemic attack. RESULTS: Only little variation of admission rates was observed before and after week 11 in 2019 and between the weeks 1 and 11 of 2019 and 2020. However, reflecting the impact of the COVID-19 pandemic, a significant decrease in the number of admissions for transient ischemic attack was observed (-85%, -46%, -42%) in 3 of 4 centers, while in 2 of 4 centers, stroke admission rates decreased significantly by 40% and 46% after week 12 in 2020. A relevant effect on reperfusion therapies was found for 1 center only (thrombolysis, -60%; thrombectomy, -61%). Positive correlations between number of ischemic events and mobility measures in the corresponding cities were identified for 3 of 4 centers. CONCLUSIONS: These data demonstrate and quantify decreasing hospital admissions due to ischemic cerebrovascular events and suggest that this may be a consequence of social distancing measures, in particular because hospital resources for acute stroke care were not limited during this period. Hence, raising public awareness is necessary to avoid serious healthcare and economic consequences of undiagnosed and untreated strokes and transient ischemic attacks.