Major traumatic pedestrian injury in Australia: Characteristics and in-hospital outcomes from the Australia New Zealand Trauma Registry.

BACKGROUND: The leading global cause of death for people aged 5-29 years is road traffic injury, a quarter of which is borne by pedestrians. The epidemiology of major hospitalised pedestrian injury across Australia is not reported. This study aims to address this gap using data from the Australia New Zealand Trauma Registry. METHODS: The registry hosts information on patients admitted to 25 major trauma centres across Australia who sustain a major injury (ISS > 12) or die following injury. Patients were included if they were injured due to pedestrian injury from 1st July 2015-30 th June 2019. Analysis included patient and injury characteristics, injury patterns and in-hospital outcomes. Primary endpoints included risk-adjusted mortality and length of stay. RESULTS: There were 2159 injured pedestrians; of these, 327 died. Young adults (20-25 years) were the largest group, especially on weekends. Older adults (70 + years) were the largest cohort in pedestrian deaths. The most common injuries were head (42.2 %). One-third of patients were intubated prior to or on ED arrival (n = 731, 34.3 %). CONCLUSION: Emergency clinicians should have a high index for severe pedestrian injury. Further reduction in road speed in residential areas could reduce all-age pedestrian injury in Australia.

Gallbladder volvulus: An unexpected "twist".

Gallbladder volvulus is a rare entity. It has been attributed to an elongated gallbladder mesentery, predisposing the gallbladder to twisting, obstructing the cystic duct and vessels, thus leading to ischemia and gangrene. Preoperative diagnosis can be elusive, but radiological features across multiple modalities have been described in the literature. We report a case of gallbladder volvulus in which the gallbladder appeared to be left-sided based on imaging, and present the radiological findings in keeping with a volvulus. Unlike cholecystitis, the treatment for volvulus is prompt detorsion and cholecystectomy; thus, accurate and timely diagnosis is paramount.

Necrotic Excluded Gastric Remnant Post Gastric Bypass: A Rare Fatal Complication.

We report an unusual case of a 76-year-old woman with a necrotic perforated excluded gastric pouch who had stomach partitioning gastrojejunostomy 20 years earlier for morbid obesity. The necrotic mucosa of the excluded gastric pouch was seen on gastroscopy with retrograde cannulation from the pylorus. Laparotomy revealed a distended excluded stomach with full-thickness ischaemia of the posterior wall with perforation into the lesser sac. Partial gastrectomy with Roux-en-Y gastrojejunostomy was performed. We strongly suggest early surgical exploration for these patients when they are hemodynamically unstable or do not have a precise diagnosis despite imaging to prevent potentially life-threatening gastric pouch necrosis. We advocate for avoiding risk factors like alcohol, nicotine, and nonsteroidal anti-inflammatory drugs (NSAIDs) and implement preoperative Helicobacter pylori testing and its eradication to reduce the incidence of perforation in the excluded pouch.