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Background Endovascular thrombectomy (EVT) is the standard therapy for patients with acute ischemic stroke secondary to large‐artery occlusion. In January 2019, the Taiwan Stroke Society established a nationwide TREAT‐AIS (Taiwan Registry of Endovascular Thrombectomy for Acute Ischemic Stroke). Here, we provide the study design, current progress, and baseline data of TREAT‐AIS. Methods TREAT‐AIS is a multicenter prospective registration program in Taiwan. Patients aged ≥20 years who underwent EVT for acute ischemic stroke were recruited. The key items on the registration form were divided into general stroke demographics and EVT‐related sections. The main outcome of effectiveness was functional independence (modified Rankin Scale score, 0–2) at 3 months. The influence of sex on post‐EVT outcomes was also analyzed in the presented study. Results By the end of June 2022, there were 10 medical centers and 9 community hospitals participating in the TREAT‐AIS and a total of 1522 patients (mean±SD age, 71.2±13.6 years; men, 55.6%) being enrolled. The median National Institutes of Health Stroke Scale score on admission was 18 (interquartile range, 12–23). The major cause of stroke was cardioembolism (43.6%), followed by large‐artery atherosclerosis (36.8%) and an undetermined cause (15.4%). Functional independence at 3 months poststroke was achieved in 36.2% of the patients. Male patients were more likely to have functional independence at 3 months compared with female patients (40.4% versus 30.8%; P

(1) Background: The acute effects of ozone, cold temperature and particulate matter less than 2.5 μm (PM2.5) in size related to asthma attacks are well known worldwide. The adverse effects of ozone and cold temperature on asthma morbidity in Taiwan are still inconclusive. (2) Methods: This retrospective study included patients who had asthma emergency room visits (ERVs) from 1 January 2016 to 31 December 2019 in a regional hospital in Taiwan. The short-term negative effects were estimated using Distributed Lag Non-Linear Models (DLNMs) for the relative risks (RRs) of asthma ERVs associated with PM2.5, ozone and cold temperature exposures within 5 days. (3) Results: There was a significant association between a 10 ppm increase in PM2.5 exposure and asthma ERVs at a 2-day lag (RR 1.166, 95% confidence interval (C.I.): 1.051–1.294). There was a significant association between ozone and asthma ERVs at a 1-day lag (RR 1.179, 95% C.I.: 1.034–1.345). The ambient temperature in cold weather compared with the temperature of minimum asthma ERV showed an RR of 1.214, 95% C.I.: 1.009–1.252 at a 1-day lag. (4) Conclusions: This study provides evidence that short-term exposure to fine suspended particulates, ozone and inverse temperature is associated with asthma exacerbation.