• A Heeney, F Hand, J Bates, O Mc Cormack, and K Mealy.
• Department of General Surgery, Wexford General Hospital, Ireland. Electronic address: annaheeney@gmail.com.
• Surg J R Coll Surg E. 2014 Jun 1;12(3):121-8.

BackgroundPost-operative mortality is one of the most universal and important outcomes that can be measured in surgical practice and is increasingly used to measure quality of care. The aim of this study was to evaluate overall mortality within a surgical department and to analyse factors associated with operative and non-operative death.MethodsWe analysed prospectively collected data detailing all surgical admissions, procedures and mortalities over a twelve year period (2000-2012) from a regional Irish hospital. We evaluated type of operation, patient factors and cause of death.ResultsA total of 62 085 patients were admitted under surgical care between the 1st of January 2000 and the 31st of December 2011. There were a total of 578 deaths during this period (0.93% overall mortality rate). 415 deaths (71.8%) occurred in non-operative patients in which advanced cancer (36.5%), sepsis (14.9%), cardiorespiratory failure (13.2%) and trauma (11%) were the primary causes. A total of 22 788 surgical procedures were performed with an operative mortality rate of 0.71%. Mortality rate following elective surgery was 0.17% and following emergency surgery was 10-fold higher (1.7%). The main cause of post-operative death was sepsis (30.02%). Emergency operations, increasing age and major procedures significantly increased mortality risk (p < 0.001).ConclusionPost-operative deaths comprise a small proportion of overall deaths within a surgical service. Mortality figures alone are not an accurate representation of surgical performance but in the absence of other easily available quality outcome measures they can be used as a surrogate marker when all confounding factors are accounted for.Copyright © 2013 Royal College of Surgeons of Edinburgh (Scottish charity number SC005317) and Royal College of Surgeons in Ireland. Published by Elsevier Ltd. All rights reserved.

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