• Ross C McLean, Leo R Brown, Thomas E Baldock, Paul O'Loughlin, and Iain Jd McCallum.
• Department of General Surgery, Gateshead Health NHS Foundation Trust, Queen Elizabeth Hospital, Queen Elizabeth Avenue, Gateshead, NE9 6SX, UK. Electronic address: rossmclean@nhs.net.
• Int J Surg. 2020 May 1; 77: 154-162.

BackgroundEmergency laparotomy is associated with high morbidity and mortality. Current trends suggest improvements have been made in recent years, with increased survival and shorter lengths of stay in hospital. The National Emergency Laparotomy Audit (NELA) has evaluated participating hospitals in England and Wales and their individual outcomes since 2013. This study aims to establish temporal trends for patients undergoing emergency laparotomy and evaluate the influence of NELA.MethodsData for emergency laparotomies admitted to NHS hospitals in the Northern Deanery between 2001 and 2016 were collected, including demographics, co-morbidities, diagnoses, operations undertaken and outcomes. The primary outcome of interest was in-hospital death within 30 days of admission. Cox-regression analysis was undertaken with adjustment for covariates.ResultsThere were 2828 in-hospital deaths from 24,291 laparotomies within 30 days of admission (11.6%). Overall 30-day mortality significantly reduced during the 15-year period studied from 16.3% (2001-04), to 8.1% during 2013-16 (p < 0.001). After multivariate adjustment, laparotomies undertaken in more recent years were associated with a lower mortality risk compared to earlier years (2013-16: HR 0.73, p < 0.001). There was a significant improvement in 30-day postoperative mortality year-on-year during the NELA period (from 9.1 to 7.1%, p = 0.039). However, there was no difference in postoperative mortality for patients who underwent laparotomy during NELA (2013-16) compared with the preceding three years (both 8.1%, p = 0.526).Discussion30 day postoperative mortality for emergency laparotomy has improved over the past 15-years, with significantly reduced mortality risk in recent years. However, it is unclear if NELA has yet had a measurable effect on 30-day post-operative mortality.Copyright © 2020 IJS Publishing Group Ltd. Published by Elsevier Ltd. All rights reserved.

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