L. Dawson

ORCID: 0000-0003-3789-5808
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About
Contact & Profiles
Research Areas
  • Acute Myocardial Infarction Research
  • Coronary Interventions and Diagnostics
  • Cardiac Valve Diseases and Treatments
  • Cardiac Arrest and Resuscitation
  • Cardiac Imaging and Diagnostics
  • Emergency and Acute Care Studies
  • Infective Endocarditis Diagnosis and Management
  • Cardiac Structural Anomalies and Repair
  • Mechanical Circulatory Support Devices
  • Heart Failure Treatment and Management
  • Trauma and Emergency Care Studies
  • Cardiovascular Function and Risk Factors
  • Rheumatoid Arthritis Research and Therapies
  • Cardiac pacing and defibrillation studies
  • Cardiac Arrhythmias and Treatments
  • Atrial Fibrillation Management and Outcomes
  • Venous Thromboembolism Diagnosis and Management
  • Osteoarthritis Treatment and Mechanisms
  • Aortic Disease and Treatment Approaches
  • Antiplatelet Therapy and Cardiovascular Diseases
  • Vascular Procedures and Complications
  • Congenital Heart Disease Studies
  • Cardiac Health and Mental Health
  • Systemic Lupus Erythematosus Research
  • Acute Lymphoblastic Leukemia research

Monash University
2013-2025

Baker Heart and Diabetes Institute
2023-2025

Stanford University
2024-2025

Cardiovascular Institute of the South
2025

Alfred Health
2021-2024

The Alfred Hospital
2016-2024

Ambulance Victoria
2022-2024

The Royal Melbourne Hospital
2018-2024

Stanford Medicine
2024

Institute of Cardiology
2024

Abstract Background and Aims The optimal revascularization strategy in patients with ischaemic cardiomyopathy remains unclear no contemporary randomized trial data to guide clinical practice. This study aims assess long-term survival severe revascularized by either coronary artery bypass grafting (CABG) or percutaneous intervention (PCI). Methods Using the Australian New Zealand Society of Cardiac Thoracic Surgeons Melbourne Interventional Group registries (from January 2005 2018), [left...

10.1093/eurheartj/ehae672 article EN European Heart Journal 2024-09-20

BACKGROUND This study aimed to assess whether there are disparities in incidence rates, care, and outcomes for patients with chest pain attended by emergency medical services according socioeconomic status (SES) a universal health coverage setting. METHODS AND RESULTS was population-based cohort of individually linked ambulance, emergency, hospital admission, mortality data the state Victoria, Australia, from January 2015 June 2019 that included 183 232 consecutive attendances adults...

10.1161/jaha.121.024923 article EN cc-by-nc-nd Journal of the American Heart Association 2022-03-24

Importance Prehospital point-of-care troponin testing and paramedic risk stratification might improve the efficiency of chest pain care pathways compared with existing processes equivalent health outcomes, but association costs is unclear. Objective To analyze whether prehospital could result in cost savings pathways. Design, Setting, Participants In this economic evaluation adults acute without ST-segment elevation, cost-minimization analysis was used to assess linked ambulance, emergency,...

10.1001/jamainternmed.2022.6409 article EN JAMA Internal Medicine 2023-01-30

Nontraumatic shock is a challenging clinical condition, presenting urgent and unique demands in the prehospital setting. There paucity of data assessing its incidence, etiology, outcomes.To assess outcomes patients treated by emergency medical services (EMS) with nontraumatic using large population-based sample.This cohort study included consecutive adult not related to trauma who received care EMS between January 1, 2015, June 30, 2019, Victoria, Australia. Data were obtained from...

10.1001/jamanetworkopen.2021.45179 article EN cc-by-nc-nd JAMA Network Open 2022-01-26

Earlier intervention may delay or prevent heart failure (HF), a widespread health problem. However, it is not currently possible to identify those who are most at risk, especially before the appearance of any clinical signs. This study presents development and subsequent validation novel genetic test for predicting risk HF, utilizing data from three independent cohorts Australian US subjects. We developed first-phase using Baker Biobank case–control cohort, identifying 41 variants indicative...

10.3390/ijms26041782 article EN International Journal of Molecular Sciences 2025-02-19

BACKGROUND: Previous studies have shown weak agreement between coronary physiology indices derived from continuous and bolus thermodilution, suggested greater variability with thermodilution measurements. This study aimed to evaluate the repeatability correlation of thermodilution–derived in cardiac transplant recipients. METHODS: Paired fractional flow reserve (FFR), (CFR), index microcirculatory resistance (IMR), absolute hyperemic (R Hyp ), microvascular (MRR) using were performed...

10.1161/circinterventions.124.014919 article EN Circulation Cardiovascular Interventions 2025-04-01

Objective To assess whether ambulance offload time influences the risks of death or re-attendance within 30 days initial emergency department (ED) presentations by adults with non-traumatic chest pain. Design, setting Population-based observational cohort study consecutive pain transported to Victorian EDs, 1 January 2015 – June 2019. Participants Adults (18 years older) pain, excluding patients ST elevation myocardial infarction (pre-hospital electrocardiography) and those who were...

10.5694/mja2.51613 article EN cc-by-nc The Medical Journal of Australia 2022-06-23

This study aims to evaluate if pre-hospital heparin administration by paramedics is safe and improves clinical outcomes.Using the multicentre Victorian Cardiac Outcomes Registry, linked with state-wide ambulance records, we identified consecutive patients undergoing primary percutaneous coronary intervention for STEMI between January 2014 December 2018. Information on thrombolysis in myocardial infarction (TIMI) flow at angiography was available a subset of cases. Patients receiving were...

10.1093/ehjacc/zuab032 article EN European Heart Journal Acute Cardiovascular Care 2021-05-01

Background: Regionalized systems of care for the management cardiogenic shock (CS) are increasingly being utilized. This study aims to assess whether receiving hospital characteristics such as availability 24-hour coronary angiography, on-site cardiac surgery, and annual treated CS volume influence outcomes in patients transferred by emergency medical services (EMS) with CS. Methods: population-based cohort included consecutive adult who were EMS between January 1, 2015 June 30, 2019...

10.1097/shk.0000000000001974 article EN Shock 2022-08-26

Background Low socioeconomic status (SES) has been linked to poor outcomes in many conditions. It is unknown whether these disparities extend individuals presenting with dyspnoea. We aimed evaluate the relationship between SES and incidence, care quality among patients attended by emergency medical services (EMS) for Methods This population-based cohort study included consecutive EMS dyspnoea 1 January 2015 30 June 2019 Victoria, Australia. Data were obtained from individually ambulance,...

10.1136/jech-2023-220737 article EN Journal of Epidemiology & Community Health 2024-01-16

Suboptimal coronary reperfusion (no reflow) is common in acute syndrome percutaneous intervention (PCI) and associated with poor outcomes. We aimed to develop externally validate a clinical risk score for angiographic no reflow use following angiography before PCI.

10.1161/circinterventions.123.013738 article EN Circulation Cardiovascular Interventions 2024-03-15
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