Pacing Over the Guidewire in Cardiac Structural Intervention: A Practical Guide.

Left ventricular access for aortic valve intervention provides the opportunity to deliver rapid pacing over the guidewire for device positioning and deployment. Temporary pacing delivered via the left ventricle can obviate the need for venous access and has been shown to be a safe alternative to temporary right ventricular pacing. The technique requires some basic knowledge and experience in temporary cardiac pacing. We outline safe practical steps and common pitfalls in using this technique.

Contemporary Management of Coronary Artery Perforation.

While coronary artery perforation remains an uncommon complication of percutaneous coronary intervention, appropriate recognition, early stabilisation and definitive treatment are essential. The immediate goals are to prevent progressive haemodynamic deterioration complicating cardiac tamponade, avoid the need for surgical intervention and limit accompanying mortality. Understanding the role and utility of newer devices that may influence procedural planning and improve procedural results when these complications occur is essential to minimise morbidity and mortality.

Yersinia intussusception: case report and review.

Intussusception is a recognised paediatric presentation in emergency department and primary care settings. The aetiology of intussusception is multifactorial and largely unknown but includes infection in some cases. Yersinia has been the most frequently cited bacterial association in children. Identifying Yersinia affects the role and choice of antibiotics in a child's treatment regimen. This article reports on Australia's first proven case of Yersinia enterocolitica intussusception, and reviews the clinical epidemiology of all known reported cases world-wide.

Enhancing Guidewire Efficacy for Trans-radial Access: The EAGER Randomized Controlled Trial.

Background: The 1.5mm 'Baby J' hydrophilic narrow J tipped wire is a development of the standard 0.035" 3mm J tipped peripheral guidewire, designed to improve efficiency of transradial coronary procedures by safely navigating small caliber radial arteries to the aorta. There is currently a lack of evidence comparing the procedural success and safety of different peripheral guidewires used in transradial cardiac procedures. We compared the efficacy and safety of a narrow J tipped hydrophilic 0.035" wire (intervention - Radifocus™ 'Baby J' guidewire, TERUMO Co., Tokyo, Japan). versus standard fixed core (FC) 0.035" J wire (control). Methods: Investigator initiated, blinded, Australian, multicenter randomized trial in patients undergoing clinically indicated coronary angiography and/or PCI. Randomized 1:1 via sealed envelope method to use either the control or the intervention guidewire. The primary endpoint (technical success) was defined as gaining aortic root access with the randomized guidewire. Results: 330 patients were randomized between October 2022 - June 2023 (median age 69 years, 36% female, BMI 29 kg/m²). The primary endpoint was achieved more frequently in the intervention group [96% v 84%; mean difference 12% (95% CI 5.7-18.3); p<0.001]. Women assigned to the control wire experienced a higher failure rate compared to men (31% v 8% in men; p<0.001). Fluoroscopy time was significantly shorter in the baby J group (median 344 versus 491 seconds; p=0.024). The main mechanisms of failure using the control wire were radial artery spasm (15/26; 57%) and subclavian tortuosity (5/26; 19.2%). There were no differences in overall procedure times, MACE, or vascular complications between guidewires. Conclusions: A narrow 1.5mm J tipped hydrophilic guidewire resulted in greater technical success and reduced fluoroscopy time compared to the standard 3mm J tip non-hydrophilic guidewire. The guidewire is safe and demonstrated key incremental benefits for the trans-radial approach particularly in women.

External injury documentation in major trauma victims is inadequate: grounds for routine photography in the emergency department?

OBJECTIVE: There is no widely accepted measure of clinical documentation quality in the ED. The present study creates a measure for comparing the quality of clinical documentation of external injuries with autopsy reports. This is used to discuss the advantages and disadvantages of introducing routine photography to improve clinical documentation of injuries. METHODS: This retrospective case series addressed all non-surviving major trauma patients (Injury Severity Score > or =15) presenting to St. Vincent's Hospital ED, Sydney, within the 5 year period from 1 July 2002 to 30 June 2007. Comparison between clinical and autopsy documentation of external injuries was completed for each major trauma patient. RESULTS: Of the 48 major trauma patients, there were an average of 11.6 injuries missed in documentation per patient (P < 0.001, 95% CI 8.6-14.6). ED documentation recorded on average 29% (95% CI 26%-32%) of the external injuries that appeared in the autopsy report. We call this percentage the external injury documentation rate. The external injury documentation rate was influenced by injury count and body region, but was not influenced by age, sex, severity (using the Abbreviated Injury Scale and Injury Severity Score), or whether the clinician used a trauma survey or standard progress notes or not, and there was no visible trend over time. CONCLUSION: Clinical documentation of external injuries in major trauma is poor. This is presumably because of many factors, including time pressures and high-stress environments. A possible strategy to improve this documentation is routine photography, which should offer both clinical and legal benefits.