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Erschienen in: Annals of Surgical Oncology 13/2014

01.12.2014 | Healthcare Policy and Outcomes

Centralization of Esophagectomy: How Far Should We Go?

verfasst von: Daniel Henneman, MD, Johan L. Dikken, MD, PhD, Hein Putter, PhD, Valery E. P. P. Lemmens, PhD, Lydia G. M. Van der Geest, MSc, Richard van Hillegersberg, MD, PhD, Marcel Verheij, MD, PhD, Cornelis J. H. van de Velde, MD, PhD, Michel W. J. M. Wouters, MD, PhD

Erschienen in: Annals of Surgical Oncology | Ausgabe 13/2014

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Abstract

Background

This study was designed to define a statistically sound and clinically meaningful cutoff point for annual hospital volume for esophagectomy. Higher hospital volumes are associated with improved outcomes after esophagectomy. However, reported optimal volumes in literature vary, and minimal volume standards in different countries show considerable variation. So far, there has been no research on the noncategorical, nonlinear, volume-outcome relationship in esophagectomy.

Methods

Data were derived from the Netherlands Cancer Registry. Restricted cubic splines were used to investigate the nonlinear effects of annual hospital volume on 6 month and 2 year mortality rates. Outcomes were adjusted for year of diagnosis, case-mix, and (neo)adjuvant treatment.

Results

Between 1989 and 2009, 10,025 patients underwent esophagectomy for cancer in the Netherlands. Annual hospital volumes varied between 1 and 83 year, increasing over time. Increasing annual hospital volume showed a continuous, nonlinear decrease in hazard ratio (HR) for mortality along the curve. Increasing hospital volume from 20 year (baseline, HR = 1.00) to 40 and 60 year was associated with decreasing 6 month mortality, with a HR of 0.73 (95 % confidence interval (0.65–0.83) and 0.67 (0.58–0.77) respectively. Beyond 60 year, no further decrease was detected. Higher hospital volume also was associated with decreasing 2 year mortality until 50 esophagectomies year with a HR of 0.86 (0.79–0.93).

Conclusions

Centralization of esophagectomy to a minimum of 20 resections/year has been effectively introduced in the Netherlands. Increasing annual hospital volume was associated with a nonlinear decrease in mortality up to 40–60 esophagectomies/year, after which a plateau was reached. This finding may guide quality improvement efforts worldwide.
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Metadaten
Titel
Centralization of Esophagectomy: How Far Should We Go?
verfasst von
Daniel Henneman, MD
Johan L. Dikken, MD, PhD
Hein Putter, PhD
Valery E. P. P. Lemmens, PhD
Lydia G. M. Van der Geest, MSc
Richard van Hillegersberg, MD, PhD
Marcel Verheij, MD, PhD
Cornelis J. H. van de Velde, MD, PhD
Michel W. J. M. Wouters, MD, PhD
Publikationsdatum
01.12.2014
Verlag
Springer US
Erschienen in
Annals of Surgical Oncology / Ausgabe 13/2014
Print ISSN: 1068-9265
Elektronische ISSN: 1534-4681
DOI
https://doi.org/10.1245/s10434-014-3873-5

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