Observational studyLangenbeck's archives of surgery2026
Association between hospital volume and mortality after elective oesophageal cancer resection in Switzerland: a retrospective national registry study from 2013 to 2022.
Observational study in Langenbeck's archives of surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07022652 (Influence of Hospital Volume on Mortality and Length of Hospital Stay After Oesophageal Cancer Resection in Switzerland), which is not on this map. Not yet cited in PubMed.
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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.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Influence of Hospital Volume on Mortality and Length of Hospital Stay After Oesophageal Cancer Resection in Switzerland: A Retrospective National Registry Study
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0 citing papers in PubMed.
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe association between a high annual hospital-specific case volume and improved postoperative outcomes after oesophageal cancer resection (OCR) is well described. The Swiss government started centralisation of OCR in 2013. This study investigates this centralisation in terms of the annual hospital-specific case volume of OCR (hospital volume) and its effect on short-term postoperative outcomes.
methodsNational inpatient registry data of all hospitals providing OCR (ICD codes C15 and at least one of the CHOP codes starting with 424, 425, or 426) between 2013 and 2022 in Switzerland were analysed. The primary endpoint was in-hospital mortality. Secondary endpoints were postoperative complications and length of hospital stay (LOS).
results1'535 cases were identified. The annual number of hospitals providing OCR ranged between 30 in 2013 and 14 in 2021. Hospital volume varied between one and 40 patients per year. Overall mortality was 5.3% (n = 81) declining from 9.3% in 2013 to 3.8% in 2022 (t=-0.511, p = 0.040). Increasing hospital volume was associated with lower risk for mortality (odds ratio (OR) = 0.723, 95% confidence interval (CI) 0.53 to 0.98, p = 0.037) and postoperative complications (OR = 0.705, 95%CI: 0.62 to 0.83, p < 0.001). There was no association of hospital volume with LOS (β = 0.007, 95%CI -0.093 to 0.108, p = 0.889). However, there were significant differences across quantiles (joint p < 0.001).
conclusionsHigher hospital volume is associated with lower mortality and fewer postoperative complications following OCR, whereas no association was observed with LOS. CLINICAL
trial registrationClinicalTrials.gov, NCT07022652, https://clinicaltrials.gov/search?id=NCT07022652 .
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