4.7 Article

Overall Volume Trends in Esophageal Cancer Surgery Results From the Dutch Upper Gastrointestinal Cancer Audit

Journal

ANNALS OF SURGERY
Volume 274, Issue 3, Pages 449-458

Publisher

LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/SLA.0000000000004985

Keywords

centralization; esophageal cancer; esophagectomy; hospital volume

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This study investigates volume-outcome trends in oncologic esophagectomy in the Netherlands, finding that high-volume centers tend to have better outcomes and reducing variation in care quality between different hospitals may improve national quality of care.
Objective: In the pursuit of quality improvement, this study aimed to investigate volume-outcome trends in oncologic esophagectomy in the Netherlands. Summary of Background Data: Concentration of Dutch esophageal cancer care was dictated by introducing an institutional minimum of 20 resections/yr. Methods: This nationwide cohort study included all esophagectomy patients registered in the Dutch Upper Gastrointestinal Cancer Audit in 2016-2019 from hospitals currently still performing esophagectomies. Annual esophagectomy hospital volume was assigned to each patient and categorized into quartiles. Multivariable logistic regression investigated short-term surgical outcomes. Restricted cubic splines investigated if volume-outcome relationships eventually plateaued. Results: In 16 hospitals, 3135 esophagectomies were performed. First volume quartile hospitals performed 24-39 resections/yr; second, third, and fourth quartile hospitals performed 40-53, 54-69, and 70-101, respectively. Compared to quartile 1, in quartiles 2 to 4, overall/severe/technical complication, anastomotic leakage, and prolonged hospital/intensive care unit stay rates were significantly lower and textbook outcome and lymph node yield were higher. When raising the cut-off from the first to second quartile, higher-volume centers had less technical complications [Adjusted odds ratio (aOR): 0.82, 95% confidence interval (CI): 0.70-0.96], less anastomotic leakage (aOR: 0.80, 95% CI: 0.66-0.97), more textbook outcome (aOR: 1.25, 95% CI: 1.07-1.46), shorter intensive care unit stay (aOR: 0.80, 95% CI: 0.69-0.93), and higher lymph node yield (aOR: 3.56, 95% CI: 2.68-4.77). For most outcomes the volume-outcome trend plateaued at 50-60 annual resections, but lymph node yield and anastomotic leakage continued to improve. Conclusion: Although this study does not reflect on individual hospital quality, there appears to be a volume trend towards better outcomes in high-volume centers. Projects have been initiated to improve national quality of care by reducing hospital variation (irrespective of volume) in outcomes in The Netherlands.

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