This is a territory-wide study to investigate the impact of coronavirus disease 2019 (COVID-19) pandemic on Accident and Emergency Department (A&E) attendances and acute ward admissions for seizures. Adult patients who presented to the A&E with seizures from January 23, 2020 to March 24, 2020 (study period) were included and compared with parallel intervals from 2015 to 2019 (control periods). Preexisting time trend in control periods and potential changes during COVID-19 were analyzed by Poisson, negative and logistic regression models. Accident and Emergency Department attendances and ward admissions for seizures decreased significantly during the COVID-19 pandemic. A total of 319 and 230 recorded ward admissions and A&E attendances for seizures were identified during the study period in 2020, compared with 494 and 343 per annum, respectively in the control periods. The ratio of acute ward admission per A&E attendance for seizures did not change significantly. Intensive care utility and mortality rates remained stable. For some patients, delaying medical attention due to fear of nosocomial COVID-19 cross-infection may lead to severe or even life-threatening consequences. This change in medical help-seeking behavior calls for new medical care models to meet the service gap. Education to patients with epilepsy and their caregivers is of utmost importance during this pandemic.

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Background There has been increasing attention focused on the epidemiology of rare diseases (RDs) in recent years. Rare neurological diseases (RNDs) constitute a significant proportion of RDs; however, relevant research is still lacking. Methods A list of ICD‐10 codes corresponding to RNDs was compiled using adaptations from the Orphanet Classification of Rare Diseases, and classified into rare epilepsy, movement‐related, neurocutaneous, neuroimmune, neurometabolic and neurodegenerative, neuromuscular and other RNDs. Using the Clinical Data Analysis and Reporting System, which holds public hospital healthcare records of Hong Kong anonymously, we calculated the prevalence and healthcare utilization of RND patients between 2014 and 2018. The list of RNDs was also used to review relevant pharmacological trials within the International Clinical Trials Registry Platform between 2009 and 2018. Results The prevalence of RNDs in Hong Kong is 3.6 in 1,000 individuals. Patients with RNDs had frequent emergency department, outpatient and inpatient healthcare utilization. The average annual cost per patient is estimated at HKD 182,075 (€ 19,688). Different categories of RNDs showed different patterns of healthcare utilization. Moreover, there were only 677 RND‐related pharmacological trials during the study period, and no trial was found for 78% of RNDs. Conclusions This is one of the first population studies on the prevalence and healthcare utilization patterns of RNDs, with comprehensive reviews of RND‐related pharmacological research. It shows high healthcare utilization rates among patients with RNDs, as well as a wide research gap in many RNDs. We call for better attention and tailored healthcare for these patients.