ArticleJournal of Korean medical science2022
Annual Case Volume and One-Year Mortality for Endovascular Treatment in Acute Ischemic Stroke.
Article in Journal of Korean medical science, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed.
- Characteristics of High-Performance Low-Volume Hospitals in Acute Stroke Care.Journal of the American Heart Association · 2025Article
- Drive-the-doctor paradigm in acute ischaemic stroke for improving regional stroke care networks: a cost-effectiveness analysis.BMJ open · 2025Article
- Annual Endovascular Thrombectomy Case Volume and Thrombectomy-capable Hospitals of Korea in Acute Stroke Care.Journal of preventive medicine and public health = Yebang Uihakhoe chi · 2023Article
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Authors and funding
19 authors.
Funding
Abstract
backgroundThe association between endovascular treatment (EVT) case volume per hospital and clinical outcomes has been reported, but the exact volume threshold has not been determined. This study aimed to examine the case volume threshold in this context.
methodsNational audit data on the quality of acute stroke care in patients admitted via emergency department, within 7 days of onset, in hospitals that treated ≥ 10 stroke cases during the audit period were analyzed. Ischemic stroke cases treated with EVT during the last three audits (2013, 2014, and 2016) were selected for the analysis. Annual EVT case volume per hospital was estimated and analyzed as a continuous and a categorical variable (in quartiles). The primary outcome measure was 1-year mortality as a surrogate of 3-month functional outcome. As post-hoc sensitivity analysis, replication of the study results was examined using the 2018 audit data.
resultsWe analyzed 1,746 ischemic stroke cases treated with EVT in 120 acute care hospitals. The median annual EVT case volume was 12.0 cases per hospital, and mortality rates at 1 month, 3 months, and 1 year were 12.7%, 16.6%, and 23.3%, respectively. Q3 and Q4 had 33% lower odds of 1-year mortality than Q1. Adjustments were made for predetermined confounders. Annual EVT case volume cut-off value for 1-year mortality was 15 cases per year (
conclusionAnnual EVT case volume was associated with 1-year mortality. The volume threshold per hospital was 15 cases per year.
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