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Background: Hospital mortality after esophagectomy has decreased from 29% to 7.5% over the last decades because of improved surgical techniques and better perioperative care. Suggestions have been made that a further decrease in hospital mortality may be achieved by centralization of esophagectomies in high volume centers., Methods: The effect of hospital volume on hospital mortality after esophagectomy in the Netherlands was analyzed based on data from the Dutch National Medical Registry and the Dutch Network and National Database for Pathology over the period 1993-1998., Results: Annually, approximately 310 (range, 264-321) esophagectomies are performed in the Netherlands. Fifty-two percent are performed in 43-55 low volume centers (1-10 resections a year). Six percent are performed in 1-3 medium volume centers (11-20 resections a year). The remainder (42%) is performed in two high volume centers (> 50 resections a year). Hospital mortality is 12.1%, 7.5% and 4.9% respectively (P < 0.001). The high volume centers seem to see slightly more advanced tumors than the low and medium volume centers., Conclusions: There is a significant (inverse) relation between hospital mortality and hospital volume for esophageal resection in the Netherlands. Although hospital mortality is not the only measure for quality of care, these data suggest a potential beneficial effect to centralization of esophagectomy in the Netherlands., (Copyright 2001 American Cancer Society.)