Observations from Australia's National Surgical Mortality Audit.

Background: Australia is the only country with a national surgical mortality audit. Every Australian surgical mortality is independently and externally reviewed by another surgeon. Extensive educational feedback to surgeons and hospitals is provided through individual patient reviews, state and national symposia and reports, and the distribution of deidentified informative cases.

Low mortality rate after emergency laparotomy in Australia is a reflection of its national surgical mortality audit influencing futile surgery.

Background: Australia's unique national surgical mortality audit has had a long-term focus on the avoidance of futile surgery. The 30-day mortality rate after emergency laparotomy in Australia is lower than in other countries. Early death (within 72 h) after emergency laparotomy may reflect futile surgery.

Predictors of interhospital transfer delays in acute surgical patient deaths in Australia: a retrospective study.

Background: Interhospital transfers in Australia facilitate access to acute surgical services, however transfer delays can occur. The aims of this study were to examine Australian mortality audit data on acute surgical patients who were transferred after presenting with a surgical emergency, and to identify modifiable predictors of transfer delay.

Methods: Surgical admissions between 1 January 2001 and 18 August 2020 were retrospectively extracted from the Australian and New Zealand Audit of Surgical Mortality database.

Part 2: Blockchain technology in health care.

Blockchain technology is one of the many disruptive technologies of the Fourth Industrial Revolution that will irrevocably change the way we live and work. These technologies are well embedded in the areas of global finance, health care and defence, to name a few. This review focuses on the relevance of blockchain technology to health care.

Part 1: Artificial intelligence technology in surgery.

Artificial intelligence (AI) is one of the disruptive technologies of the fourth Industrial Revolution that is changing our work practices. This technology is in use in highly diverse industries including health care, defence, insurance and e-commerce. This review focuses on the relevance of AI to surgery.

Screening and testing for COVID-19 before surgery.

Background: Preoperative screening for coronavirus disease 2019 (COVID-19) aims to preserve surgical safety for both patients and surgical teams. This rapid review provides an evaluation of current evidence with input from clinical experts to produce guidance for screening for active COVID-19 in a low prevalence setting.

Methods: An initial search of PubMed (until 6 May 2020) was combined with targeted searches of both PubMed and Google Scholar until 1 July 2020.