Nationwide epidemiological study of subarachnoid hemorrhage: trends in admissions, mortality, seasonality, costs, clipping, embolization, and the impact of COVID-19

作者：Thiago Oscar Goulart, Thire Baggio Machado Marazzi, Rosane Aparecida Monteiro, Gleici da Silva Castro Perdoná, Millene Rodrigues Camilo, Octávio Marques Pontes‐Neto · 发表于：Frontiers in Neurology · 年份：2025 · DOI：10.3389/fneur.2025.1630224 · 被引用次数：6 · 研究领域：Intracranial Aneurysms: Treatment and Complications、COVID-19 and healthcare impacts、Intracerebral and Subarachnoid Hemorrhage Research

Introduction: Aneurysmal Subarachnoid Hemorrhage (aSAH) represents a severe neurological emergency with high morbidity and mortality. Despite advances in neurocritical care and endovascular techniques, aSAH remains a significant burden, especially in resource-limited settings like Brazil, where studies of this condition are scarce until now. This study evaluates the epidemiology, costs, and procedural trends of aSAH in Brazil from 2017 to 2022, highlighting the impacts of the COVID-19 pandemic. Methods: This retrospective study analyzed secondary data from the Brazilian public health system (DataSUS) using ICD-10 code I60 for aSAH. Key metrics included the evaluation of admissions with time-series in Python, and mortality rates, procedures, and costs. Results: Between 2017 and 2022, 61,134 aSAH admissions were recorded, averaging 10,189 annually. The in-hospital mortality rate remained consistently high at 20.3% (range: 19.2-20.5%), with 12,192 total deaths. Admissions declined temporarily during the initial of Pandemic (April-June 2020) but later recovered. Seasonal admission peaks were observed in mid-year months (June-August), while December-February consistently showed lower rates. The average length of hospital stay was 10.0 days, with a decline during the pandemic (9.6 days in 2020) before stabilizing post-pandemic. This pattern likely reflects pandemic-related disruptions and early discharges to manage hospital bed shortages. Procedures for ruptured aneurysms included ...