Outcomes following emergency laparotomy in Australian public hospitals

International studies reporting outcomes following emergency laparotomies have consistently demonstrated wide inter-hospital variation and a 30-day mortality in excess of 10%. The UK then prioritized the funding of the National Emergency Laparotomy Audit. In a prospective Western Australian audit there was minimal inter-hospital variation and a 6.6% 30-day mortality. In the absence of any multi-hospital Australian data the aim of the present study was to compare national administrative data with that previously reported.

Data on emergency laparotomies performed in Australian public hospitals during 2013/2014 and 2014/2015 were extracted from admitted patient activity and costing data sets collated by the Independent Hospital Pricing Authority. The data sets, containing episode-level data relating to admitted acute and sub-acute care patients, included administrative, demographic and clinical information such as patient age, cost, length of stay, in-hospital mortality, diagnosis and surgical procedure details.

Ninety-nine public hospitals undertaking at least 50 emergency laparotomies performed 20 388 procedures over the 2 years. The overall in-hospital mortality was 5.2%. There was a wide interstate and inter-hospital variation in risk-adjusted in-hospital mortality (4.8-6.6% and 0-9.3%, respectively), length of stay (12.5-16.8 days and 5.8-18.9 days, respectively) and intensive care unit admissions (24.5-40.2% and 0-75.7%, respectively).

This data suggest the wide variation in outcomes and care process observed overseas exist in Australia. However, administrative data has considerable limitations and is not a substitute for high quality prospective data. Minimizing variations through prospective quality improvement processes will improve patient outcomes.