Arterial injuries to the lower limb, such as from a shark bite or deep laceration, can lead to catastrophic bleeding and death. Current first aid measures involve trained personnel applying an arterial tourniquet. However, even a short delay in haemorrhage management can lead to significant blood loss, brain injury or death. There is growing evidence that the simple technique of applying pressure to the groin can effectively occlude blood flow through the femoral artery, buying time for medically trained personnel to attend.

One potential application of this technique is the treatment of shark attack victims with lower limb injuries, where beachgoers without medical training who have only seen a sign on a beach could apply life saving first aid. There is plethora of other potential applications outside marine encounters where this technique could be critical in reducing blood loss such as limb trauma from motor vehicle accidents, workplace injuries or military settings. The benefits are the simplicity of the technique which may be both easily and effectively performed by bystanders with no medical training. Using a non-clinical environment, we intend on performing a randomised trial to evaluate the efficacy of non-medically trained beachgoers performing pressure points compared with the application of a commercial arterial tourniquet after reading an infographic. We will measure the reduction in arterial blood flow using doppler ultrasound. The project aims to generate translatable research with the goal of influencing local, national, and international first aid guidelines.

Abdominal pain is one of the commonest reasons for children to attend the emergency department (ED), and acute appendicitis is the most common cause of abdominal pain requiring surgery. There are various clinical prediction scores that have been developed to help doctors diagnose appendicitis; however, most scores were developed overseas and are not routinely used in Australian EDs. The aim of this project is to review different published scores and compare them with overall clinician impression in diagnosing acute appendicitis in children presenting to ED.

The project will include all patients presenting to the ED with abdominal pain that are having investigations for possible appendicitis. The treating doctor will be asked to complete a case report form detailing patient history, examination findings, investigation results, as well as their overall clinical impression of the patient’s likelihood of having the diagnosis of appendicitis. Data collected will be analysed by project researchers to determine which scores are the most helpful for clinicians in diagnosing acute appendicitis in children presenting to Australian EDs, with the expectation that this will improve future care provided to children with abdominal pain.