ArticleThe Lancet regional health. Europe2026
Time to coronary angiography and revascularization in 575,247 patients with STEMI from 2012 to 2023: a retrospective population-based cohort study.
Article in The Lancet regional health. Europe, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Rapid primary percutaneous coronary intervention (PPCI) in patients with ST-elevation myocardial infarction (STEMI) reduces in-hospital and long-term mortality. This study analyzes time intervals to PPCI in STEMI, risk factors for delay of PPCI, and in-hospital mortality from 2012 to 2023. Methods: This is a retrospective population-based analysis of hospital billing data of adult STEMI patients receiving PPCI in Germany. The time for transport to hospital (TTH) was estimated using geographic routing. The in-hospital time to angiography (IHTA) was calculated using time coding of PPCI in patient records. Findings: A total of 575,247 patients were included. The median age was 64 years, 28.5% (164,016) were female. The population with IHTA ≤60 min increased from 44.5% (22,240/49,965) in 2012 to 57.7% (24,434/42,356) in 2023 with improved TTH + IHTA ≤120 min (56.6%, 28,280/49,965, in 2012-70.2%, 29,734/42,356, in 2023). IHTA improved from median 73.1 min (IQR 25.2-186.6) in 2012 to 46.4 min (IQR 17.5-111.6) in 2023 with a stable TTH (11.4-11.9 min). Risk factors for an IHTA >60 min included age, female sex, comorbidity, presentation out of regular hours, and low-volume hospitals. In-hospital mortality increased (8.8%, 4406/49,965, in 2012, 10.4%, 4822/46,203, in 2021, 10.1%, 4272/42,356, in 2023), paralleling a rise in patient age and comorbidity. Risk factors for in-hospital mortality included female sex, increased age, comorbidity, high-volume hospitals, intervention of multiple coronary arteries, weekend admission, and presentation out of regular hours. IHTA <40 min (90-120 min as reference) and TTH + IHTA <80 min (≥120 min as reference) reduced the risk of death. Interpretation: Combining hospital billing records with geographic routing enables benchmarking of both pre- and in-hospital delays in STEMI care. In hospital delay decreased between 2012 and 2023. Important areas for improving time delays and STEMI-related mortality include the timeliness of care outside of regular hours and a focus on women, older patients, as well as individuals with comorbidities. Funding: There was no funding for this project or this publication.
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