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Since 2016 NHS organisations have been expected to review all deaths and assess avoidability. This is a significant task and presents many challenges. However, as Justin Vale discusses in this article it is a vital part of the learning process. [ABSTRACT FROM AUTHOR]

Study Type - Therapy (outcomes research) Level of Evidence 2c OBJECTIVE [ABSTRACT FROM AUTHOR]

OBJECTIVE To assess systematically the quality of evidence for the volume-outcome relationship in uro-oncology, and thus facilitate the formulating of health policy within this speciality, as ‘Implementation of Improving Outcome Guidance’ has led to centralization of uro-oncology based on published studies that have supported a ‘higher volume-better outcome’ relationship, but improved awareness of methodological drawbacks in health service research has questioned the strength of this proposed volume-outcome relationship. METHODS We systematically searched previous relevant reports and extracted all articles from 1980 onwards assessing the volume-outcome relationship for cystectomy, prostatectomy and nephrectomy at the institution and/or surgeon level. Studies were assessed for their methodological quality using a previously validated rating system. Where possible, meta-analytical methods were used to calculate overall differences in outcome measures between low and high volume healthcare providers. RESULTS In all, 22 studies were included in the final analysis; 19 of these were published in the last 5 years. Only four studies appropriately explored the effect of both the institution and surgeon volume on outcome measures. Mortality and length of stay were the most frequently measured outcomes. The median total quality scores within each of the operation types were 8.5, 9 and 8 for cystectomy, prostatectomy and nephrectomy, respectively (possible maximum score 18). Random-effects modelling showed a higher risk of mortality in low-volume institutions than in higher-volume institutions for both cystectomy and nephrectomy (odds ratio 1.88, 95% confidence interval 1.54–2.29, and 1.28, 1.10–1.49, respectively). CONCLUSION The methodological quality of volume-outcome research as applied to cystectomy, prostatectomy and nephrectomy is only modest at best. Accepting several limitations, pooled analysis confirms a higher-volume, lower-mortality relationship for cystectomy and nephrectomy. Future research should focus on the development of a quality framework with a validated scoring system for the bench-marking of data to improve validity and facilitate rational policy-making within the speciality of uro-oncology. [ABSTRACT FROM AUTHOR]

The article comments on the indicators derivable from routine data in order to define clinical case-mix and compare hospital outcomes in urology. The overview of the hospital mortality is offered in the article. Also included is the presentation of the adequate number of subject index admissions and adverse events.