1
|
Dawson LP, Ball J, Wilson A, Voskoboinik A, Nehme Z, Horrigan M, Emerson L, Kaye D, Stub D. Population trends in the incidence and outcomes of atrial fibrillation presentations to emergency departments in Victoria, Australia. Heart Rhythm 2024; 21:693-695. [PMID: 38219891 DOI: 10.1016/j.hrthm.2024.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 01/02/2024] [Accepted: 01/07/2024] [Indexed: 01/16/2024]
Affiliation(s)
- Luke P Dawson
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia; The Alfred Hospital, Melbourne, Victoria, Australia; Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia.
| | - Jocasta Ball
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia; Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Andrew Wilson
- Department of Health Services, Safer Care Victoria, Melbourne, Victoria, Australia; Ambulance Victoria, Melbourne, Victoria, Australia
| | - Aleksandr Voskoboinik
- The Alfred Hospital, Melbourne, Victoria, Australia; Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Ziad Nehme
- Ambulance Victoria, Melbourne, Victoria, Australia
| | - Mark Horrigan
- St Vincent's Health, Melbourne, Victoria, Australia; Austin Health, Melbourne, Victoria, Australia
| | - Lance Emerson
- Department of Health Services, Safer Care Victoria, Melbourne, Victoria, Australia
| | - David Kaye
- The Alfred Hospital, Melbourne, Victoria, Australia; Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Dion Stub
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia; The Alfred Hospital, Melbourne, Victoria, Australia; Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| |
Collapse
|
2
|
Dawson LP, Rashid M, Dinh DT, Brennan A, Bloom JE, Biswas S, Lefkovits J, Shaw JA, Chan W, Clark DJ, Oqueli E, Hiew C, Freeman M, Taylor AJ, Reid CM, Ajani AE, Kaye DM, Mamas MA, Stub D. No-Reflow Prediction in Acute Coronary Syndrome During Percutaneous Coronary Intervention: The NORPACS Risk Score. Circ Cardiovasc Interv 2024; 17:e013738. [PMID: 38487882 DOI: 10.1161/circinterventions.123.013738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 01/31/2024] [Indexed: 04/18/2024]
Abstract
BACKGROUND Suboptimal coronary reperfusion (no reflow) is common in acute coronary syndrome percutaneous coronary intervention (PCI) and is associated with poor outcomes. We aimed to develop and externally validate a clinical risk score for angiographic no reflow for use following angiography and before PCI. METHODS We developed and externally validated a logistic regression model for prediction of no reflow among adult patients undergoing PCI for acute coronary syndrome using data from the Melbourne Interventional Group PCI registry (2005-2020; development cohort) and the British Cardiovascular Interventional Society PCI registry (2006-2020; external validation cohort). RESULTS A total of 30 561 patients (mean age, 64.1 years; 24% women) were included in the Melbourne Interventional Group development cohort and 440 256 patients (mean age, 64.9 years; 27% women) in the British Cardiovascular Interventional Society external validation cohort. The primary outcome (no reflow) occurred in 4.1% (1249 patients) and 9.4% (41 222 patients) of the development and validation cohorts, respectively. From 33 candidate predictor variables, 6 final variables were selected by an adaptive least absolute shrinkage and selection operator regression model for inclusion (cardiogenic shock, ST-segment-elevation myocardial infarction with symptom onset >195 minutes pre-PCI, estimated stent length ≥20 mm, vessel diameter <2.5 mm, pre-PCI Thrombolysis in Myocardial Infarction flow <3, and lesion location). Model discrimination was very good (development C statistic, 0.808; validation C statistic, 0.741) with excellent calibration. Patients with a score of ≥8 points had a 22% and 27% risk of no reflow in the development and validation cohorts, respectively. CONCLUSIONS The no-reflow prediction in acute coronary syndrome risk score is a simple count-based scoring system based on 6 parameters available before PCI to predict the risk of no reflow. This score could be useful in guiding preventative treatment and future trials.
Collapse
Affiliation(s)
- Luke P Dawson
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia (L.P.D., D.T.D., A.B., S.B., J.L., W.C., C.M.R., A.E.A., D.S.)
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia (L.P.D., J.E.B., J.A.S., A.J.T., D.M.K., D.S.)
- The Baker Institute, Melbourne, Victoria, Australia (L.P.D., J.E.B., J.A.S., D.M.K., D.S.)
| | - Muhammad Rashid
- Keele Cardiovascular Research Group, Centre for Prognosis Research, Stroke on Trent, United Kingdom (M.R., A.E.A., M.A.M.)
- Department of Cardiovascular Sciences, National Institute for Health and Care Research (NIHR) Leicester Biomedical Research Centre, Glenfield Hospital, University of Leicester, United Kingdom (M.R., A.E.A.)
- University Hospitals of Leicester National Health Service (NHS) Trust, United Kingdom (M.R., A.E.A.)
| | - Diem T Dinh
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia (L.P.D., D.T.D., A.B., S.B., J.L., W.C., C.M.R., A.E.A., D.S.)
| | - Angela Brennan
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia (L.P.D., D.T.D., A.B., S.B., J.L., W.C., C.M.R., A.E.A., D.S.)
| | - Jason E Bloom
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia (L.P.D., J.E.B., J.A.S., A.J.T., D.M.K., D.S.)
- The Baker Institute, Melbourne, Victoria, Australia (L.P.D., J.E.B., J.A.S., D.M.K., D.S.)
| | - Sinjini Biswas
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia (L.P.D., D.T.D., A.B., S.B., J.L., W.C., C.M.R., A.E.A., D.S.)
| | - Jeffrey Lefkovits
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia (L.P.D., D.T.D., A.B., S.B., J.L., W.C., C.M.R., A.E.A., D.S.)
- Department of Cardiology, Royal Melbourne Hospital, Victoria, Australia (J.L.)
| | - James A Shaw
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia (L.P.D., J.E.B., J.A.S., A.J.T., D.M.K., D.S.)
- The Baker Institute, Melbourne, Victoria, Australia (L.P.D., J.E.B., J.A.S., D.M.K., D.S.)
| | - William Chan
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia (L.P.D., D.T.D., A.B., S.B., J.L., W.C., C.M.R., A.E.A., D.S.)
- Department of Medicine, Melbourne University, Victoria, Australia (W.C.)
| | - David J Clark
- Department of Cardiology, Austin Health, Melbourne, Victoria, Australia (D.J.C.)
| | - Ernesto Oqueli
- Department of Cardiology, Grampians Health Ballarat, Victoria, Australia (E.O.)
- School of Medicine, Faculty of Health, Deakin University, Geelong, Victoria, Australia (E.O.)
| | - Chin Hiew
- Department of Cardiology, University Hospital Geelong, Victoria, Australia (C.H.)
| | - Melanie Freeman
- Department of Cardiology, Box Hill Hospital, Melbourne, Victoria, Australia (M.F.)
| | - Andrew J Taylor
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia (L.P.D., J.E.B., J.A.S., A.J.T., D.M.K., D.S.)
| | - Christopher M Reid
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia (L.P.D., D.T.D., A.B., S.B., J.L., W.C., C.M.R., A.E.A., D.S.)
- Centre of Clinical Research and Education, School of Public Health, Curtin University, Perth, Western Australia, Australia (C.M.R.)
| | - Andrew E Ajani
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia (L.P.D., D.T.D., A.B., S.B., J.L., W.C., C.M.R., A.E.A., D.S.)
- Keele Cardiovascular Research Group, Centre for Prognosis Research, Stroke on Trent, United Kingdom (M.R., A.E.A., M.A.M.)
- Department of Cardiovascular Sciences, National Institute for Health and Care Research (NIHR) Leicester Biomedical Research Centre, Glenfield Hospital, University of Leicester, United Kingdom (M.R., A.E.A.)
- University Hospitals of Leicester National Health Service (NHS) Trust, United Kingdom (M.R., A.E.A.)
| | - David M Kaye
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia (L.P.D., J.E.B., J.A.S., A.J.T., D.M.K., D.S.)
- The Baker Institute, Melbourne, Victoria, Australia (L.P.D., J.E.B., J.A.S., D.M.K., D.S.)
| | - Mamas A Mamas
- Keele Cardiovascular Research Group, Centre for Prognosis Research, Stroke on Trent, United Kingdom (M.R., A.E.A., M.A.M.)
| | - Dion Stub
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia (L.P.D., D.T.D., A.B., S.B., J.L., W.C., C.M.R., A.E.A., D.S.)
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia (L.P.D., J.E.B., J.A.S., A.J.T., D.M.K., D.S.)
- The Baker Institute, Melbourne, Victoria, Australia (L.P.D., J.E.B., J.A.S., D.M.K., D.S.)
| |
Collapse
|
3
|
Bloom JE, Wong N, Nehme E, Dawson LP, Ball J, Anderson D, Cox S, Chan W, Kaye DM, Nehme Z, Stub D. Association of socioeconomic status in the incidence, quality-of-care metrics, and outcomes for patients with cardiogenic shock in a pre-hospital setting. Eur Heart J Qual Care Clin Outcomes 2024; 10:89-98. [PMID: 36808236 DOI: 10.1093/ehjqcco/qcad010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/23/2023] [Accepted: 02/04/2023] [Indexed: 02/19/2023]
Abstract
AIMS The relationship between lower socioeconomic status (SES) and poor cardiovascular outcomes is well described; however, there exists a paucity of data exploring this association in cardiogenic shock (CS). This study aimed to investigate whether any disparities exist between SES and the incidence, quality of care or outcomes of CS patients attended by emergency medical services (EMS). METHODS AND RESULTS This population-based cohort study included consecutive patients transported by EMS with CS between 1 January 2015 and 30 June 2019 in Victoria, Australia. Data were collected from individually linked ambulance, hospital, and mortality datasets. Patients were stratified into SES quintiles using national census data produced by the Australian Bureau of Statistics.A total of 2628 patients were attended by EMS for CS. The age-standardized incidence of CS amongst all patients was 11.8 [95% confidence interval (95% CI), 11.4-12.3] per 100 000 person-years, with a stepwise increase from the highest to lowest SES quintile (lowest quintile 17.0 vs. highest quintile 9.7 per 100 000 person-years, P-trend < 0.001). Patients in lower SES quintiles were less likely to attend metropolitan hospitals and more likely to be received by inner regional and remote centres without revascularization capabilities. A greater proportion of the lower SES groups presented with CS due to non-ST elevation myocardial infarction (NSTEMI) or unstable angina pectoris (UAP), and overall were less likely to undergo coronary angiography. Multivariable analysis demonstrated an increased 30-day all-cause mortality rate in the lowest three SES quintiles when compared with the highest quintile. CONCLUSION This population-based study demonstrated discrepancies between SES status in the incidence, care metrics, and mortality rates of patients presenting to EMS with CS. These findings outline the challenges in equitable healthcare delivery within this cohort.
Collapse
Affiliation(s)
- Jason E Bloom
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia
- Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC 3004, Australia
- Department of Research and Evaluation, Ambulance Victoria, 31 Joseph Street, Blackburn, VIC 3130, Australia
- School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia
| | - Nathan Wong
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia
| | - Emily Nehme
- Department of Research and Evaluation, Ambulance Victoria, 31 Joseph Street, Blackburn, VIC 3130, Australia
- School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia
| | - Luke P Dawson
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia
- Department of Research and Evaluation, Ambulance Victoria, 31 Joseph Street, Blackburn, VIC 3130, Australia
- School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia
| | - Jocasta Ball
- School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia
| | - David Anderson
- Department of Research and Evaluation, Ambulance Victoria, 31 Joseph Street, Blackburn, VIC 3130, Australia
- School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia
- Department of Paramedicine, Monash University, McMahons Road, Frankston, VIC 3199, Australia
- Department of Intensive Care, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia
| | - Shelley Cox
- Department of Research and Evaluation, Ambulance Victoria, 31 Joseph Street, Blackburn, VIC 3130, Australia
- School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia
| | - William Chan
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia
- Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC 3004, Australia
| | - David M Kaye
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia
- Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC 3004, Australia
| | - Ziad Nehme
- Department of Research and Evaluation, Ambulance Victoria, 31 Joseph Street, Blackburn, VIC 3130, Australia
- School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia
- Department of Paramedicine, Monash University, McMahons Road, Frankston, VIC 3199, Australia
| | - Dion Stub
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia
- Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC 3004, Australia
- Department of Research and Evaluation, Ambulance Victoria, 31 Joseph Street, Blackburn, VIC 3130, Australia
- School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia
| |
Collapse
|
4
|
Dawson LP, Carrington MJ, Haregu T, Nanayakkara S, Jennings G, Dart A, Stub D, Kaye D. Differences in predictors of incident heart failure according to atherosclerotic cardiovascular disease status. ESC Heart Fail 2023; 10:3398-3409. [PMID: 37688465 PMCID: PMC10682860 DOI: 10.1002/ehf2.14521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 07/09/2023] [Accepted: 08/18/2023] [Indexed: 09/11/2023] Open
Abstract
AIMS Heart failure (HF) is a common cause of morbidity and mortality, related to a broad range of sociodemographic, lifestyle, cardiometabolic, and comorbidity risk factors, which may differ according to the presence of atherosclerotic cardiovascular disease (ASCVD). We assessed the association between incident HF with baseline status across these domains, overall and separated according to ASCVD status. METHODS AND RESULTS We included 5758 participants from the Baker Biobank cohort without HF at baseline enrolled between January 2000 and December 2011. The primary endpoint was incident HF, defined as hospital admission or HF-related death, determined through linkage with state-wide administrative databases (median follow-up 12.2 years). Regression models were fitted adjusted for sociodemographic variables, alcohol intake, smoking status, measures of adiposity, cardiometabolic profile measures, and individual comorbidities. During 65 987 person-years (median age 59 years, 38% women), incident HF occurred among 784 participants (13.6%) overall. Rates of incident HF were higher among patients with ASCVD (624/1929, 32.4%) compared with those without ASCVD (160/3829, 4.2%). Incident HF was associated with age, socio-economic status, alcohol intake, smoking status, body mass index (BMI), waist circumference, waist-hip ratio, systolic blood pressure (SBP), and low- and high-density lipoprotein cholesterol (LDL-C and HDL-C), with non-linear relationships observed for age, alcohol intake, BMI, waist circumference, waist-hip ratio, SBP, LDL-C, and HDL-C. Risk factors for incident HF were largely consistent regardless of ASCVD status, although diabetes status had a greater association with incident HF among patients without ASCVD. CONCLUSIONS Incident HF is associated with a broad range of baseline sociodemographic, lifestyle, cardiometabolic, and comorbidity factors, which are mostly consistent regardless of ASCVD status. These data could be useful in efforts towards developing risk prediction models that can be used in patients with ASCVD.
Collapse
Affiliation(s)
- Luke P. Dawson
- Department of CardiologyThe Alfred HospitalMelbourneVictoriaAustralia
- Faculty of MedicineMonash UniversityMelbourneVictoriaAustralia
- Department of CardiologyThe Royal Melbourne HospitalMelbourneVictoriaAustralia
| | - Melinda J. Carrington
- Baker Heart and Diabetes Institute55 Commercial Rd, PrahranMelbourneVictoriaAustralia
| | - Tilahun Haregu
- Department of CardiologyThe Alfred HospitalMelbourneVictoriaAustralia
- Baker Heart and Diabetes Institute55 Commercial Rd, PrahranMelbourneVictoriaAustralia
| | - Shane Nanayakkara
- Department of CardiologyThe Alfred HospitalMelbourneVictoriaAustralia
- Baker Heart and Diabetes Institute55 Commercial Rd, PrahranMelbourneVictoriaAustralia
| | - Garry Jennings
- Baker Heart and Diabetes Institute55 Commercial Rd, PrahranMelbourneVictoriaAustralia
| | - Anthony Dart
- Department of CardiologyThe Alfred HospitalMelbourneVictoriaAustralia
- Baker Heart and Diabetes Institute55 Commercial Rd, PrahranMelbourneVictoriaAustralia
| | - Dion Stub
- Department of CardiologyThe Alfred HospitalMelbourneVictoriaAustralia
- Faculty of MedicineMonash UniversityMelbourneVictoriaAustralia
- Baker Heart and Diabetes Institute55 Commercial Rd, PrahranMelbourneVictoriaAustralia
| | - David Kaye
- Department of CardiologyThe Alfred HospitalMelbourneVictoriaAustralia
- Faculty of MedicineMonash UniversityMelbourneVictoriaAustralia
- Baker Heart and Diabetes Institute55 Commercial Rd, PrahranMelbourneVictoriaAustralia
| |
Collapse
|
5
|
Dawson LP, Andrew E, Nehme Z, Bloom J, Okyere D, Cox S, Anderson D, Stephenson M, Lefkovits J, Taylor AJ, Kaye D, Smith K, Stub D. Risk-standardized mortality metric to monitor hospital performance for chest pain presentations. Eur Heart J Qual Care Clin Outcomes 2023; 9:583-591. [PMID: 36195327 DOI: 10.1093/ehjqcco/qcac062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 07/10/2022] [Accepted: 09/29/2022] [Indexed: 09/13/2023]
Abstract
AIMS Risk-standardized mortality rates (RSMR) have been used to monitor hospital performance in procedural and disease-based registries, but limitations include the potential to promote risk-averse clinician decisions and a lack of assessment of the whole patient journey. We aimed to determine whether it is feasible to use RSMR at the symptom-level to monitor hospital performance using routinely collected, linked, clinical and administrative data of chest pain presentations. METHODS AND RESULTS We included 192 978 consecutive adult patients (mean age 62 years; 51% female) with acute chest pain without ST-elevation brought via emergency medical services (EMS) to 53 emergency departments in Victoria, Australia (1/1/2015-30/6/2019). From 32 candidate variables, a risk-adjusted logistic regression model for 30-day mortality (C-statistic 0.899) was developed, with excellent calibration in the full cohort and with optimism-adjusted bootstrap internal validation. Annual 30-day RSMR was calculated by dividing each hospital's observed mortality by the expected mortality rate and multiplying it by the annual mean 30-day mortality rate. Hospital performance according to annual 30-day RSMR was lower for outer regional or remote locations and at hospitals without revascularisation capabilities. Hospital rates of angiography or transfer for patients diagnosed with non-ST elevation myocardial infarction (NSTEMI) correlated with annual 30-day RSMR, but no correlations were observed with other existing key performance indicators. CONCLUSION Annual hospital 30-day RSMR can be feasibly calculated at the symptom-level using routinely collected, linked clinical, and administrative data. This outcome-based metric appears to provide additional information for monitoring hospital performance in comparison with existing process of care key performance measures.
Collapse
Affiliation(s)
- Luke P Dawson
- Department of Cardiology, The Alfred Hospital, Melbourne, VIC 3004, Australia
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, VIC 3004, Australia
- Department of Cardiology, The Royal Melbourne Hospital, Melbourne, VIC 3050, Australia
| | - Emily Andrew
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, VIC 3004, Australia
- Centre for Research & Evaluation, Ambulance Victoria, Melbourne, VIC 3130, Australia
| | - Ziad Nehme
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, VIC 3004, Australia
- Centre for Research & Evaluation, Ambulance Victoria, Melbourne, VIC 3130, Australia
- Department of Paramedicine, Monash University, Melbourne, VIC 3199, Australia
| | - Jason Bloom
- Department of Cardiology, The Alfred Hospital, Melbourne, VIC 3004, Australia
- Heart Failure Research Group, The Baker Institute, Melbourne, VIC 3004, Australia
| | - Daniel Okyere
- Centre for Research & Evaluation, Ambulance Victoria, Melbourne, VIC 3130, Australia
| | - Shelley Cox
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, VIC 3004, Australia
- Centre for Research & Evaluation, Ambulance Victoria, Melbourne, VIC 3130, Australia
| | - David Anderson
- Centre for Research & Evaluation, Ambulance Victoria, Melbourne, VIC 3130, Australia
- Department of Intensive Care Medicine, The Alfred Hospital, Melbourne, VIC 3004, Australia
| | - Michael Stephenson
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, VIC 3004, Australia
- Centre for Research & Evaluation, Ambulance Victoria, Melbourne, VIC 3130, Australia
- Department of Paramedicine, Monash University, Melbourne, VIC 3199, Australia
| | - Jeffrey Lefkovits
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, VIC 3004, Australia
- Department of Cardiology, The Royal Melbourne Hospital, Melbourne, VIC 3050, Australia
| | - Andrew J Taylor
- Department of Cardiology, The Alfred Hospital, Melbourne, VIC 3004, Australia
- Department of Medicine, Monash University, Melbourne, VIC 3800, Australia
| | - David Kaye
- Department of Cardiology, The Alfred Hospital, Melbourne, VIC 3004, Australia
- Heart Failure Research Group, The Baker Institute, Melbourne, VIC 3004, Australia
| | - Karen Smith
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, VIC 3004, Australia
- Centre for Research & Evaluation, Ambulance Victoria, Melbourne, VIC 3130, Australia
- Department of Paramedicine, Monash University, Melbourne, VIC 3199, Australia
| | - Dion Stub
- Department of Cardiology, The Alfred Hospital, Melbourne, VIC 3004, Australia
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, VIC 3004, Australia
- Heart Failure Research Group, The Baker Institute, Melbourne, VIC 3004, Australia
| |
Collapse
|
6
|
Dawson LP, Nehme E, Burchill LJ, Nehme Z, O’Brien J, Bloom J, Cox S, Anderson D, Stephenson M, Lefkovits J, Taylor AJ, Kaye D, Smith K, Stub D. Chest pain epidemiology and care quality for Aboriginal and Torres Strait Islander peoples in Victoria, Australia: a population-based cohort study from 2015 to 2019. Lancet Reg Health West Pac 2023; 38:100839. [PMID: 37790074 PMCID: PMC10544300 DOI: 10.1016/j.lanwpc.2023.100839] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 05/28/2023] [Accepted: 06/20/2023] [Indexed: 10/05/2023]
Abstract
Background This study examined chest pain epidemiology and care quality for Aboriginal and Torres Strait Islander ('Indigenous') patients presenting to hospital via emergency medical services (EMS) with chest pain. Methods State-wide population-based cohort study of consecutive patients attended by ambulance for acute chest pain with individual linkage to emergency, hospital admission and mortality data in the state of Victoria, Australia from January 2015 to June 2019. Multivariable models were used to assess for differences in pre-hospital and hospital adherence to care quality, process measures and clinical outcomes. Findings From 204,969 EMS attendances for chest pain, 3890 attendances (1.9%) identified as Aboriginal or Torres Strait Islander. Age-standardized incidence rates were higher overall for Indigenous people (3128 vs. 1147 per 100,000 person-years, incidence rate ratio 2.73, 95% CI 2.72-2.74), this difference being particularly striking for younger patients, women, and those residing in outer regional areas. In multivariable models, adherence to care quality and process measures was lower for attendances involving Indigenous people. In the pre-hospital setting, Indigenous people were less likely to be provided intravenous access or analgesia. In the hospital setting, Indigenous people were less likely to be seen by emergency clinicians within target time and less likely to transferred following myocardial infarction to a revascularization capable centre. Interpretation Incidence of acute chest pain presentations is high among Indigenous people in Victoria, Australia. Opportunities to improve the quality of care for Indigenous Australians presenting with acute chest pain are identified. Funding National Health and Medical Research Council, National Heart Foundation.
Collapse
Affiliation(s)
- Luke P. Dawson
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Department of Cardiology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | - Emily Nehme
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Ambulance Victoria, Melbourne, Victoria, Australia
| | - Luke J. Burchill
- Department of Cardiology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
- Aboriginal Cardiovascular Health Equity Research Group, Department of Medicine, The University of Melbourne, Australia
| | - Ziad Nehme
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Ambulance Victoria, Melbourne, Victoria, Australia
- Department of Paramedicine, Monash University, Melbourne, Victoria, Australia
| | - Jessica O’Brien
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia
| | - Jason Bloom
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia
- The Baker Institute, Melbourne, Victoria, Australia
| | - Shelley Cox
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Department of Paramedicine, Monash University, Melbourne, Victoria, Australia
| | - David Anderson
- Ambulance Victoria, Melbourne, Victoria, Australia
- Department of Paramedicine, Monash University, Melbourne, Victoria, Australia
- Department of Intensive Care Medicine, The Alfred Hospital, Melbourne, Victoria, Australia
| | - Michael Stephenson
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Ambulance Victoria, Melbourne, Victoria, Australia
- Department of Paramedicine, Monash University, Melbourne, Victoria, Australia
| | - Jeffrey Lefkovits
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Department of Cardiology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | - Andrew J. Taylor
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia
- Department of Medicine, Monash University, Melbourne, Victoria, Australia
| | - David Kaye
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia
- The Baker Institute, Melbourne, Victoria, Australia
| | - Karen Smith
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Ambulance Victoria, Melbourne, Victoria, Australia
- Department of Paramedicine, Monash University, Melbourne, Victoria, Australia
| | - Dion Stub
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- The Baker Institute, Melbourne, Victoria, Australia
| |
Collapse
|
7
|
Navani RV, Dawson LP, Nehme E, Nehme Z, Bloom J, Cox S, Anderson D, Stephenson M, Lefkovits J, Taylor AJ, Kaye D, Smith K, Stub D. Variation in Health Care Processes, Quality and Outcomes According to Day and Time of Chest Pain Presentation via Ambulance. Heart Lung Circ 2023:S1443-9506(23)00150-6. [PMID: 37100698 DOI: 10.1016/j.hlc.2023.03.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 03/15/2023] [Accepted: 03/26/2023] [Indexed: 04/28/2023]
Abstract
BACKGROUND Previous studies examining temporal variations in cardiovascular care have largely been limited to assessing weekend and after-hours effects. We aimed to determine whether more complex temporal variation patterns might exist in chest pain care. METHODS This was a population-based study of consecutive adult patients attended by emergency medical services (EMS) for non-traumatic chest pain without ST elevation in Victoria, Australia between 1 January 2015 and 30 June 2019. Multivariable models were used to assess whether time of day and week stratified into 168 hourly time periods was associated with care processes and outcomes. RESULTS There were 196,365 EMS chest pain attendances; mean age 62.4 years (standard deviation [SD] 18.3) and 51% females. Presentations demonstrated a diurnal pattern, a Monday-Sunday gradient (Monday peak) and a reverse weekend effect (lower rates on weekends). Five temporal patterns were observed for care quality and process measures, including a diurnal pattern (longer emergency department [ED] length of stay), an after-hours pattern (lower angiography or transfer for myocardial infarction, pre-hospital aspirin administration), a weekend effect (shorter ED clinician review, shorter EMS off-load time), an afternoon/evening peak period pattern (longer ED clinician review, longer EMS off-load time) and a Monday-Sunday gradient (ED clinician review, EMS offload time). Risk of 30-day mortality was associated with weekend presentation (Odds ratio [OR] 1.15, p=0.001) and morning presentation (OR 1.17, p<0.001) while risk of 30-day EMS reattendance was associated with peak period (OR 1.16, p<0.001) and weekend presentation (OR 1.07, p<0.001). CONCLUSIONS Chest pain care demonstrates complex temporal variation beyond the already established weekend and after-hours effect. Such relationships should be considered during resource allocation and quality improvement programs to improve care across all days and times of the week.
Collapse
Affiliation(s)
- Rohan V Navani
- Department of Cardiology, The Alfred Hospital, Melbourne, Vic, Australia. http://www.twitter.com/RohanNavani
| | - Luke P Dawson
- Department of Cardiology, The Alfred Hospital, Melbourne, Vic, Australia; Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic, Australia; Department of Cardiology, The Royal Melbourne Hospital, Melbourne, Vic, Australia
| | - Emily Nehme
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic, Australia; Ambulance Victoria, Melbourne, Vic, Australia
| | - Ziad Nehme
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic, Australia; Ambulance Victoria, Melbourne, Vic, Australia; Department of Paramedicine, Monash University, Melbourne, Vic, Australia
| | - Jason Bloom
- Department of Cardiology, The Alfred Hospital, Melbourne, Vic, Australia; The Baker Institute, Melbourne, Vic, Australia
| | - Shelley Cox
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic, Australia; Ambulance Victoria, Melbourne, Vic, Australia
| | - David Anderson
- Ambulance Victoria, Melbourne, Vic, Australia; Department of Intensive Care Medicine, The Alfred Hospital, Melbourne, Vic, Australia
| | - Michael Stephenson
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic, Australia; Ambulance Victoria, Melbourne, Vic, Australia; Department of Paramedicine, Monash University, Melbourne, Vic, Australia
| | - Jeffrey Lefkovits
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic, Australia; Department of Cardiology, The Royal Melbourne Hospital, Melbourne, Vic, Australia
| | - Andrew J Taylor
- Department of Cardiology, The Alfred Hospital, Melbourne, Vic, Australia; Department of Medicine, Monash University, Melbourne, Vic, Australia
| | - David Kaye
- Department of Cardiology, The Alfred Hospital, Melbourne, Vic, Australia; The Baker Institute, Melbourne, Vic, Australia
| | - Karen Smith
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic, Australia; Ambulance Victoria, Melbourne, Vic, Australia; Department of Paramedicine, Monash University, Melbourne, Vic, Australia
| | - Dion Stub
- Department of Cardiology, The Alfred Hospital, Melbourne, Vic, Australia; Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic, Australia; Ambulance Victoria, Melbourne, Vic, Australia; The Baker Institute, Melbourne, Vic, Australia.
| |
Collapse
|
8
|
Bloom JE, Partovi A, Bernard S, Okyere D, Heritier S, Mahony E, Eliakundu AL, Dawson LP, Voskoboinik A, Anderson D, Ball J, Chan W, Kaye DM, Nehme Z, Stub D. Use of a novel smartphone-based application tool for enrolment and randomisation in pre-hospital clinical trials. Resuscitation 2023; 187:109787. [PMID: 37028747 DOI: 10.1016/j.resuscitation.2023.109787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 03/11/2023] [Accepted: 03/25/2023] [Indexed: 04/08/2023]
Abstract
The effective recruitment and randomisation of patients in pre-hospital clinical trials presents unique challenges. Owing to the time critical nature of many pre-hospital emergencies and limited resourcing, the use of traditional methods of randomisation that may include centralised telephone or web-based systems are often not practicable or feasible. Previous technological limitations have necessitated that pre-hospital trialists strike a compromise between implementing pragmatic, deliverable study designs, and robust enrolment and randomisation methodologies. In this commentary piece, we present a novel smartphone-based solution that has the potential to align pre-hospital clinical trial recruitment processes to that of best-in-practice in-hospital and ambulatory care setting studies. Running title: Smartphone application based randomisation in pre-hospital clinical trials.
Collapse
Affiliation(s)
- Jason E Bloom
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia; Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC 3004, Australia; School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia; Ambulance Victoria, 31 Joseph Street, Blackburn, VIC 3130, Australia
| | | | - Stephen Bernard
- School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia
| | - Daniel Okyere
- Ambulance Victoria, 31 Joseph Street, Blackburn, VIC 3130, Australia
| | - Stephane Heritier
- School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia
| | - Emily Mahony
- Ambulance Victoria, 31 Joseph Street, Blackburn, VIC 3130, Australia
| | - Amminadab L Eliakundu
- School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia
| | - Luke P Dawson
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia; School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia
| | - Aleksandr Voskoboinik
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia; Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC 3004, Australia
| | - David Anderson
- Ambulance Victoria, 31 Joseph Street, Blackburn, VIC 3130, Australia; Department of Paramedicine, Monash University, McMahons Road, Frankston, VIC 3199, Australia
| | - Jocasta Ball
- School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia
| | - William Chan
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia; Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC 3004, Australia
| | - David M Kaye
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia; Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC 3004, Australia
| | - Ziad Nehme
- Ambulance Victoria, 31 Joseph Street, Blackburn, VIC 3130, Australia; Department of Paramedicine, Monash University, McMahons Road, Frankston, VIC 3199, Australia
| | - Dion Stub
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia; Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC 3004, Australia; Ambulance Victoria, 31 Joseph Street, Blackburn, VIC 3130, Australia.
| |
Collapse
|
9
|
Dawson LP, Nehme E, Nehme Z, Zomer E, Bloom J, Cox S, Anderson D, Stephenson M, Ball J, Zhou J, Lefkovits J, Taylor AJ, Horrigan M, Chew DP, Kaye D, Cullen L, Mihalopoulos C, Smith K, Stub D. Chest Pain Management Using Prehospital Point-of-Care Troponin and Paramedic Risk Assessment. JAMA Intern Med 2023; 183:203-211. [PMID: 36715993 PMCID: PMC9887542 DOI: 10.1001/jamainternmed.2022.6409] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 11/28/2022] [Indexed: 01/31/2023]
Abstract
Importance Prehospital point-of-care troponin testing and paramedic risk stratification might improve the efficiency of chest pain care pathways compared with existing processes with equivalent health outcomes, but the association with health care costs is unclear. Objective To analyze whether prehospital point-of-care troponin testing and paramedic risk stratification could result in cost savings compared with existing chest pain care pathways. Design, Setting, and Participants In this economic evaluation of adults with acute chest pain without ST-segment elevation, cost-minimization analysis was used to assess linked ambulance, emergency, and hospital attendance in the state of Victoria, Australia, between January 1, 2015, and June 30, 2019. Interventions Paramedic risk stratification and point-of-care troponin testing. Main Outcomes and Measures The outcome was estimated mean annualized statewide costs for acute chest pain. Between May 17 and June 25, 2022, decision tree models were developed to estimate costs under 3 pathways: (1) existing care, (2) paramedic risk stratification and point-of-care troponin testing without prehospital discharge, or (3) prehospital discharge and referral to a virtual emergency department (ED) for low-risk patients. Probabilities for the prehospital pathways were derived from a review of the literature. Multivariable probabilistic sensitivity analysis with 50 000 Monte Carlo iterations was used to estimate mean costs and cost differences among pathways. Results A total of 188 551 patients attended by ambulance for chest pain (mean [SD] age, 61.9 [18.3] years; 50.5% female; 49.5% male; Indigenous Australian, 2.0%) were included in the model. Estimated annualized infrastructure and staffing costs for the point-of-care troponin pathways, assuming a 5-year device life span, was $2.27 million for the pathway without prehospital discharge and $4.60 million for the pathway with prehospital discharge (incorporating virtual ED costs). In the decision tree model, total annual cost using prehospital point-of-care troponin and paramedic risk stratification was lower compared with existing care both without prehospital discharge (cost savings, $6.45 million; 95% uncertainty interval [UI], $0.59-$16.52 million; lower in 94.1% of iterations) and with prehospital discharge (cost savings, $42.84 million; 95% UI, $19.35-$72.26 million; lower in 100% of iterations). Conclusions and Relevance Prehospital point-of-care troponin and paramedic risk stratification for patients with acute chest pain could result in substantial cost savings. These findings should be considered by policy makers in decisions surrounding the potential utility of prehospital chest pain risk stratification and point-of-care troponin models provided that safety is confirmed in prospective studies.
Collapse
Affiliation(s)
- Luke P. Dawson
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Department of Cardiology, The Royal Melbourne Hospital, Victoria, Australia
| | - Emily Nehme
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Ambulance Victoria, Melbourne, Australia
| | - Ziad Nehme
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Ambulance Victoria, Melbourne, Australia
- Department of Paramedicine, Monash University, Melbourne, Victoria, Australia
| | - Ella Zomer
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Jason Bloom
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia
- The Baker Institute, Melbourne, Victoria, Australia
| | - Shelley Cox
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Ambulance Victoria, Melbourne, Australia
| | - David Anderson
- Ambulance Victoria, Melbourne, Australia
- Department of Paramedicine, Monash University, Melbourne, Victoria, Australia
- Department of Intensive Care Medicine, The Alfred Hospital, Melbourne, Victoria, Australia
| | - Michael Stephenson
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Ambulance Victoria, Melbourne, Australia
- Department of Paramedicine, Monash University, Melbourne, Victoria, Australia
| | - Jocasta Ball
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Jennifer Zhou
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia
| | - Jeffrey Lefkovits
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Department of Cardiology, The Royal Melbourne Hospital, Victoria, Australia
| | - Andrew J. Taylor
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia
- Department of Medicine, Monash University, Melbourne, Victoria, Australia
| | - Mark Horrigan
- Department of Cardiology, Austin Health, Heidelberg, Victoria, Australia
- Safer Care Victoria, Melbourne, Australia
| | - Derek P. Chew
- College of Medicine and Public Health, Flinders University, Adelaide, South Australia
| | - David Kaye
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia
- The Baker Institute, Melbourne, Victoria, Australia
| | - Louise Cullen
- Emergency and Trauma Centre, Royal Brisbane and Women’s Hospital, Queensland, Australia
| | - Cathrine Mihalopoulos
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Karen Smith
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Ambulance Victoria, Melbourne, Australia
- Department of Paramedicine, Monash University, Melbourne, Victoria, Australia
| | - Dion Stub
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- The Baker Institute, Melbourne, Victoria, Australia
| |
Collapse
|
10
|
Dawson LP, Nehme E, Nehme Z, Smith K, Stub D. The influence of ambulance offload time on 30-day risks of death and re-presentation for patients with chest pain. Med J Aust 2023; 218:142. [PMID: 36494082 DOI: 10.5694/mja2.51806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 10/31/2022] [Indexed: 12/14/2022]
Affiliation(s)
- Luke P Dawson
- Royal Melbourne Hospital, Melbourne, VIC.,Monash University, Melbourne, VIC.,Heart Centre, Alfred Hospital, Melbourne, VIC
| | - Emily Nehme
- Monash University, Melbourne, VIC.,Centre for Research and Evaluation, Ambulance Victoria, Melbourne, VIC
| | - Ziad Nehme
- Monash University, Melbourne, VIC.,Centre for Research and Evaluation, Ambulance Victoria, Melbourne, VIC
| | - Karen Smith
- Monash University, Melbourne, VIC.,Centre for Research and Evaluation, Ambulance Victoria, Melbourne, VIC
| | - Dion Stub
- Monash University, Melbourne, VIC.,Heart Centre, Alfred Hospital, Melbourne, VIC
| |
Collapse
|
11
|
Xiao X, Bloom JE, Andrew E, Dawson LP, Nehme Z, Stephenson M, Anderson D, Fernando H, Noaman S, Cox S, Chan W, Kaye DM, Smith K, Stub D. Age as a predictor of clinical outcomes and determinant of therapeutic measures for emergency medical services treated cardiogenic shock. J Geriatr Cardiol 2023; 20:1-10. [PMID: 36875161 PMCID: PMC9975487 DOI: 10.26599/1671-5411.2023.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023] Open
Abstract
BACKGROUND The impact of age on outcomes in cardiogenic shock (CS) is poorly described in the pre-hospital setting. We assessed the impact of age on outcomes of patients treated by emergency medical services (EMS). METHODS This population-based cohort study included consecutive adult patients with CS transported to hospital by EMS. Successfully linked patients were stratified into tertiles by age (18-63, 64-77, and > 77 years). Predictors of 30-day mortality were assessed through regression analyses. The primary outcome was 30-day all-cause mortality. RESULTS A total of 3523 patients with CS were successfully linked to state health records. The average age was 68 ± 16 years and 1398 (40%) were female. Older patients were more likely to have comorbidities including pre-existing coronary artery disease, hypertension, dyslipidemia, diabetes mellitus, and cerebrovascular disease. The incidence of CS was significantly greater with increasing age (incidence rate per 100,000 person years 6.47 [95% CI: 6.1-6.8] in age 18-63 years, 34.34 [32.4-36.4] in age 64-77 years, 74.87 [70.6-79.3] in age > 77 years, P < 0.001). There was a step-wise increase in the rate of 30-day mortality with increasing age tertile. After adjustment, compared to the lowest age tertile, patients aged > 77 years had increased risk of 30-day mortality (adjusted hazard ratio = 2.26 [95% CI: 1.96-2.60]). Older patients were less likely to receive inpatient coronary angiography. CONCLUSION Older patients with EMS-treated CS have significantly higher rates of short-term mortality. The reduced rates of invasive interventions in older patients underscore the need for further development of systems of care to improve outcomes for this patient group.
Collapse
Affiliation(s)
- Xiaoman Xiao
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, Australia
| | - Jason E Bloom
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, Australia.,Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, Australia.,Department of Cardiology, Western Health, Furlong Road, St Albans, Australia.,Ambulance Victoria, 31 Joseph Street, Blackburn, Australia
| | - Emily Andrew
- Ambulance Victoria, 31 Joseph Street, Blackburn, Australia.,School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, Australia
| | - Luke P Dawson
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, Australia.,Ambulance Victoria, 31 Joseph Street, Blackburn, Australia.,School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, Australia
| | - Ziad Nehme
- Ambulance Victoria, 31 Joseph Street, Blackburn, Australia.,School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, Australia.,Department of Paramedicine, Monash University, McMahons Road, Frankston, Australia
| | - Michael Stephenson
- Ambulance Victoria, 31 Joseph Street, Blackburn, Australia.,School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, Australia.,Department of Paramedicine, Monash University, McMahons Road, Frankston, Australia
| | - David Anderson
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, Australia.,Ambulance Victoria, 31 Joseph Street, Blackburn, Australia
| | - Himawan Fernando
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, Australia.,Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, Australia
| | - Samer Noaman
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, Australia.,Department of Cardiology, Western Health, Furlong Road, St Albans, Australia
| | - Shelley Cox
- Ambulance Victoria, 31 Joseph Street, Blackburn, Australia.,School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, Australia
| | - William Chan
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, Australia.,Department of Cardiology, Western Health, Furlong Road, St Albans, Australia
| | - David M Kaye
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, Australia.,Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, Australia
| | - Karen Smith
- Ambulance Victoria, 31 Joseph Street, Blackburn, Australia.,School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, Australia.,Department of Paramedicine, Monash University, McMahons Road, Frankston, Australia
| | - Dion Stub
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, Australia.,Department of Cardiology, Western Health, Furlong Road, St Albans, Australia.,Ambulance Victoria, 31 Joseph Street, Blackburn, Australia.,School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, Australia
| |
Collapse
|
12
|
Dawson LP, Andrew E, Nehme Z, Bloom J, Cox S, Anderson D, Stephenson M, Lefkovits J, Taylor AJ, Kaye D, Guo Y, Smith K, Stub D. Temperature-related chest pain presentations and future projections with climate change. Sci Total Environ 2022; 848:157716. [PMID: 35914598 DOI: 10.1016/j.scitotenv.2022.157716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/13/2022] [Accepted: 07/26/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Climate change has led to increased interest in studying adverse health effects relating to ambient temperatures. It is unclear whether incident chest pain is associated with non-optimal temperatures and how chest pain presentation rates might be affected by climate change. METHODS The study included ambulance data of chest pain presentations in Melbourne, Australia from 1/1/2015 to 30/6/2019 with linkage to hospital and emergency discharge diagnosis data. A time series quasi-Poisson regression with a distributed lag nonlinear model was fitted to assess the temperature-chest pain presentation associations overall and according to age, sex, socioeconomic status, and event location subgroups, with adjustment for season, day of the week and long-term trend. Future excess chest pain presentations associated with cold and heat were projected under six general circulation models under medium and high emission scenarios. RESULTS In 206,789 chest pain presentations, mean (SD) age was 61.2 (18.9) years and 50.3 % were female. Significant heat- and cold-related increased risk of chest pain presentations were observed for mean air temperatures above and below 20.8 °C, respectively. Excess chest pain presentations related to heat were observed in all subgroups, but appeared to be attenuated for older patients (≥70 years), patients of higher socioeconomic status (SES), and patients developing chest pain at home. We projected increases in heat-related chest pain presentations with climate change under both medium- and high-emission scenarios, which are offset by decreases in chest pain presentations related to cold temperatures. CONCLUSIONS Heat- and cold- exposure appear to increase the risk of chest pain presentations, especially among younger patients and patients of lower SES. This will have important implications with climate change modelling of chest pain, in particular highlighting the importance of risk mitigation strategies to minimise adverse health impacts on hotter days.
Collapse
Affiliation(s)
- Luke P Dawson
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia; School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia; Department of Cardiology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | - Emily Andrew
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia; Ambulance Victoria, Melbourne, Victoria, Australia
| | - Ziad Nehme
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia; Ambulance Victoria, Melbourne, Victoria, Australia; Department of Paramedicine, Monash University, Melbourne, Victoria, Australia
| | - Jason Bloom
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia; The Baker Institute, Melbourne, Victoria, Australia
| | - Shelley Cox
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia; Ambulance Victoria, Melbourne, Victoria, Australia
| | - David Anderson
- Ambulance Victoria, Melbourne, Victoria, Australia; Department of Intensive Care Medicine, The Alfred Hospital, Melbourne, Victoria, Australia
| | - Michael Stephenson
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia; Ambulance Victoria, Melbourne, Victoria, Australia; Department of Paramedicine, Monash University, Melbourne, Victoria, Australia
| | - Jeffrey Lefkovits
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia; Department of Cardiology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | - Andrew J Taylor
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia; Department of Medicine, Monash University, Victoria, Australia
| | - David Kaye
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia; The Baker Institute, Melbourne, Victoria, Australia
| | - Yuming Guo
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Karen Smith
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia; Ambulance Victoria, Melbourne, Victoria, Australia; Department of Paramedicine, Monash University, Melbourne, Victoria, Australia
| | - Dion Stub
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia; School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia; The Baker Institute, Melbourne, Victoria, Australia.
| |
Collapse
|
13
|
Dawson LP, Reid C, Eccleston D. Response by Dawson et al to Letter Regarding Article, "Characteristics and Quality of National Cardiac Registries: a Systematic Review". Circ Cardiovasc Qual Outcomes 2022; 15:e009257. [PMID: 36065813 DOI: 10.1161/circoutcomes.122.009257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Luke P Dawson
- Department of Cardiology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia (L.P.D., D.E.).,Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia (L.P.D.).,Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia (L.P.D., C.R.)
| | - Christopher Reid
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia (L.P.D., C.R.).,Curtin School of Population Health, Curtin University, Perth, Western Australia (C.R.)
| | - David Eccleston
- Department of Cardiology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia (L.P.D., D.E.).,Department of Medicine, Melbourne University, Victoria, Australia (D.E.)
| |
Collapse
|
14
|
Dawson LP, Andrew E, Stephenson M, Nehme Z, Bloom J, Cox S, Anderson D, Lefkovits J, Taylor AJ, Kaye D, Smith K, Stub D. The influence of ambulance offload time on 30-day risks of death and re-presentation for patients with chest pain. Med J Aust 2022; 217:253-259. [PMID: 35738570 PMCID: PMC9545565 DOI: 10.5694/mja2.51613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 02/15/2022] [Accepted: 03/14/2022] [Indexed: 12/20/2022]
Abstract
OBJECTIVE To assess whether ambulance offload time influences the risks of death or ambulance re-attendance within 30 days of initial emergency department (ED) presentations by adults with non-traumatic chest pain. DESIGN, SETTING Population-based observational cohort study of consecutive presentations by adults with non-traumatic chest pain transported by ambulance to Victorian EDs, 1 January 2015 - 30 June 2019. PARTICIPANTS Adults (18 years or older) with non-traumatic chest pain, excluding patients with ST elevation myocardial infarction (pre-hospital electrocardiography) and those who were transferred between hospitals or not transported to hospital (eg, cardiac arrest or death prior to transport). MAIN OUTCOME MEASURES Primary outcome: 30-day all-cause mortality (Victorian Death Index data). SECONDARY OUTCOME Transport by ambulance with chest pain to ED within 30 days of initial ED presentation. RESULTS We included 213 544 people with chest pain transported by ambulance to EDs (mean age, 62 [SD, 18] years; 109 027 women [51%]). The median offload time increased from 21 (IQR, 15-30) minutes in 2015 to 24 (IQR, 17-37) minutes during the first half of 2019. Three offload time tertiles were defined to include approximately equal patient numbers: tertile 1 (0-17 minutes), tertile 2 (18-28 minutes), and tertile 3 (more than 28 minutes). In multivariable models, 30-day risk of death was greater for patients in tertile 3 than those in tertile 1 (adjusted rates, 1.57% v 1.29%; adjusted risk difference, 0.28 [95% CI, 0.16-0.42] percentage points), as was that of a second ambulance attendance with chest pain (adjusted rates, 9.03% v 8.15%; adjusted risk difference, 0.87 [95% CI, 0.57-1.18] percentage points). CONCLUSIONS Longer ambulance offload times are associated with greater 30-day risks of death and ambulance re-attendance for people presenting to EDs with chest pain. Improving the speed of ambulance-to-ED transfers is urgently required.
Collapse
Affiliation(s)
- Luke P Dawson
- Royal Melbourne HospitalMelbourneVIC
- Centre for Research and Evaluation, Ambulance VictoriaMelbourneVIC
- Monash UniversityMelbourneVIC
| | - Emily Andrew
- Centre for Research and Evaluation, Ambulance VictoriaMelbourneVIC
- Ambulance VictoriaMelbourneVIC
| | - Michael Stephenson
- Centre for Research and Evaluation, Ambulance VictoriaMelbourneVIC
- Alfred HealthMelbourneVIC
| | - Ziad Nehme
- Centre for Research and Evaluation, Ambulance VictoriaMelbourneVIC
- Alfred HealthMelbourneVIC
| | - Jason Bloom
- Centre for Research and Evaluation, Ambulance VictoriaMelbourneVIC
- Monash UniversityMelbourneVIC
| | | | | | - Jeffrey Lefkovits
- Royal Melbourne HospitalMelbourneVIC
- Centre for Research and Evaluation, Ambulance VictoriaMelbourneVIC
| | - Andrew J Taylor
- Centre for Research and Evaluation, Ambulance VictoriaMelbourneVIC
- Monash UniversityMelbourneVIC
| | - David Kaye
- Monash UniversityMelbourneVIC
- Baker Heart Research Institute (BHRI)MelbourneVIC
| | - Karen Smith
- Ambulance VictoriaMelbourneVIC
- Alfred HealthMelbourneVIC
| | - Dion Stub
- Centre for Research and Evaluation, Ambulance VictoriaMelbourneVIC
- Monash UniversityMelbourneVIC
| |
Collapse
|
15
|
Bloom JE, Nehme Z, Andrew E, Dawson LP, Fernando H, Noaman S, Stephenson M, Anderson D, Pellegrino V, Cox S, Lefkovits J, Chan W, Kaye DM, Smith K, Stub D. HOSPITAL CHARACTERISTICS ARE ASSOCIATED WITH CLINICAL OUTCOMES IN PATIENTS WITH CARDIOGENIC SHOCK. Shock 2022; 58:204-210. [PMID: 36018300 DOI: 10.1097/shk.0000000000001974] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
ABSTRACT Background: Regionalized systems of care for the management of cardiogenic shock (CS) are increasingly being utilized. This study aims to assess whether receiving hospital characteristics such as the availability of 24-hour coronary angiography, on-site cardiac surgery, and annual treated CS volume influence outcomes in patients transferred by emergency medical services (EMS) to hospital with CS. Methods: This population-based cohort study included consecutive adult patients with CS who were transferred to hospital by EMS between January 1, 2015 and June 30, 2019 in Victoria, Australia. Data were obtained from individually linked ambulance, hospital, and state death index data sets. The primary outcome assessed was 30-day mortality stratified by the availability of 24-hour coronary angiography (cardiac center) at the receiving hospital. Results: A total of 3,217 patients were transferred to hospital with CS. The population had an average age of 67.9 +/- 16.1 years, and 1,289 (40.1%) were female. EMS transfer to a cardiac center was associated with significantly reduced rates of 30-day mortality (adjusted odds ratio [aOR], 0.78; 95% confidence interval [CI], 0.64-0.95), compared with noncardiac centers. Compared with the lowest annual CS volume quartile (<18 cases per year), hospitals in the highest volume quartile (>55 cases per year) had reduced risk of 30-day mortality (aOR, 0.71; 95% CI, 0.56-0.91). A stepwise reduction in the adjusted probability of 30-day mortality was observed in patients transferred by EMS to trauma level 1 centers (34.6%), compared with cardiothoracic surgical centers (39.0%), noncardiac surgical metropolitan (44.9%), and rural (51.3%) cardiac centers, all P < 0.05. Conclusion: Receiving hospital characteristics are associated with survival outcomes in patients with CS. These finding have important implications for establishing regionalized systems of care for patients with CS who are transferred to hospital by EMS.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | - Vincent Pellegrino
- Department of Intensive Care, Alfred Health, Melbourne, Victoria, Australia
| | - Shelley Cox
- Ambulance Victoria, Blackburn, Victoria, Australia
| | | | | | | | | | | |
Collapse
|
16
|
Bloom JE, Andrew E, Nehme Z, Beale A, Dawson LP, Shi WY, Vriesendorp PA, Fernando H, Noaman S, Cox S, Stephenson M, Anderson D, Chan W, Kaye DM, Smith K, Stub D. Gender Disparities in Cardiogenic Shock Treatment and Outcomes. Am J Cardiol 2022; 177:14-21. [PMID: 35773044 DOI: 10.1016/j.amjcard.2022.04.047] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 04/11/2022] [Accepted: 04/15/2022] [Indexed: 11/25/2022]
Abstract
Cardiogenic shock is associated with a high risk for morbidity and mortality. The impact of gender on treatment and outcomes is poorly defined. This study aimed to evaluate whether gender influences the clinical management and outcomes of patients with prehospital cardiogenic shock. Consecutive adult patients with cardiogenic shock who were transferred to hospital by emergency medical services (EMS) between January 1, 2015 and June 30, 2019 in Victoria, Australia were included. Data were obtained from individually linked ambulance, hospital, and state death index datasets. The primary outcome assessed was 30-day mortality, stratified by patient gender. Propensity score matching was performed for risk adjustment. Over the study period a total of 3,465 patients were identified and 1,389 patients (40.1%) were women. Propensity score matching yielded 1,330 matched pairs with no differences observed in baseline characteristics, including age, initial vital signs, pre-existing co-morbidities, etiology of shock, and prehospital interventions. In the matched cohort, women had higher rates of 30-day mortality (44.7% vs 39.2%, p = 0.009), underwent less coronary angiography (18.3% vs 27.2%, p <0.001), and revascularization with percutaneous coronary intervention (8.9% vs 14.2%, p <0.001), compared with men. In conclusion, in this large population-based study, women with cardiogenic shock who were transferred by EMS to hospital had significantly worse survival outcomes and reduced rates of invasive cardiac interventions compared to men. These data underscore the urgent need for targeted public health measures to redress gender differences in outcomes and variation with clinical care for patients with cardiogenic shock.
Collapse
Affiliation(s)
- Jason E Bloom
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia; Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC 3004, Australia; Department of Cardiology, Western Health, Furlong Road, St Albans, VIC 3021, Australia
| | - Emily Andrew
- Ambulance Victoria, 31 Joseph Street, Blackburn, VIC 3130, Australia; Department of Epidemiology and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia
| | - Ziad Nehme
- Ambulance Victoria, 31 Joseph Street, Blackburn, VIC 3130, Australia; Department of Epidemiology and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia; Department of Paramedicine, Monash University, McMahons Road, Frankston, VIC 3199, Australia
| | - Anna Beale
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia; Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC 3004, Australia
| | - Luke P Dawson
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia; Department of Epidemiology and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia
| | - William Y Shi
- Division of Cardiac Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Pieter A Vriesendorp
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia
| | - Himawan Fernando
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia; Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC 3004, Australia
| | - Samer Noaman
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia; Department of Cardiology, Western Health, Furlong Road, St Albans, VIC 3021, Australia
| | - Shelley Cox
- Ambulance Victoria, 31 Joseph Street, Blackburn, VIC 3130, Australia
| | - Michael Stephenson
- Ambulance Victoria, 31 Joseph Street, Blackburn, VIC 3130, Australia; Department of Epidemiology and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia
| | - David Anderson
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia; Ambulance Victoria, 31 Joseph Street, Blackburn, VIC 3130, Australia
| | - William Chan
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia; Department of Cardiology, Western Health, Furlong Road, St Albans, VIC 3021, Australia
| | - David M Kaye
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia; Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC 3004, Australia
| | - Karen Smith
- Ambulance Victoria, 31 Joseph Street, Blackburn, VIC 3130, Australia; Department of Epidemiology and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia
| | - Dion Stub
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia; Department of Cardiology, Western Health, Furlong Road, St Albans, VIC 3021, Australia; Ambulance Victoria, 31 Joseph Street, Blackburn, VIC 3130, Australia; Department of Epidemiology and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia.
| |
Collapse
|
17
|
Abstract
Advances in coronary plaque imaging over the last few decades have led to an increased interest in the identification of novel high-risk plaque features that are associated with cardiovascular events. Existing practices focus on risk stratification and lipid monitoring for primary and secondary prevention of cardiac events, which is limited by a lack of assessment and treatment of vulnerable plaque. In this review, we summarize the multitude of studies that have identified plaque, haemodynamic and patient factors associated with risk of acute coronary syndrome. Future progress in multi-modal imaging strategies and in our understanding of high-risk plaque features could expand treatment options for coronary disease and improve patient outcomes.
Collapse
Affiliation(s)
- Luke P Dawson
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, VIC, Australia.,Department of Cardiology, The Alfred Hospital, Melbourne, VIC, Australia
| | - Jamie Layland
- Department of Medicine, Monash University, Clayton campus, Melbourne, VIC, Australia. .,Department of Cardiology, Peninsula Health, 2 Hastings Rd, Frankston, VIC, 3199, Australia.
| |
Collapse
|
18
|
Dawson LP, Quinn S, Tong D, Boyle A, Hamilton-Craig C, Adams H, Layland J. Colchicine and quality of life in patients with acute coronary syndromes: Results from the COPS randomized trial. Cardiovasc Revasc Med 2022; 44:53-59. [PMID: 35739010 DOI: 10.1016/j.carrev.2022.06.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 06/14/2022] [Accepted: 06/15/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND Recent data suggest that colchicine may reduce cardiovascular events among patients presenting with acute coronary syndromes. This sub-study of the Australian COPS trial aimed to assess whether colchicine affects health status outcomes. METHODS Health status was assessed at baseline and 12-months using the EuroQol-5 Dimension 5-level (EQ-5D-5L) score and the full 19-question Seattle Angina Questionnaire (SAQ). Data were available for 786 patients (388 randomized to colchicine, 398 to placebo). RESULTS Baseline characteristics were well matched between groups; mean age was 60.1 (SD 14.8) years, and 20 % were female. Baseline health status scores were impaired, and most parameters demonstrated significant improvement from baseline to 12-months (EQ-5D-5L Visual Analogue Score [VAS] 69.3 to 77.7; SAQ angina frequency score 83.0 to 95.3, both p < 0.001). No significant differences in adjusted mean score change among any of the EQ-5D-5L or SAQ dimensions were observed between treatment groups in either intention-to-treat or per-protocol analysis. There were borderline interactions in EQ-5D-5L scores for those with previous MI vs not, and in SAQ scores for those with obesity vs not. In categorical analysis using observed data, patients treated with colchicine were more likely to have clinically significant improvement in physical limitation score over the period (36 % improved vs. 28 %, p < 0.05). Baseline health status scores were not associated with the primary endpoint at 12 months. CONCLUSIONS Treatment with colchicine did not appear to affect change in measures of health status following acute coronary syndromes, but it did lead to a greater likelihood of improvement in physical limitation scores. TRIAL REGISTRATION ACTRN, ACTRN12615000861550. Registered 18/08/2015, https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=368973.
Collapse
Affiliation(s)
- Luke P Dawson
- Department of Cardiology, Peninsula Health, Melbourne, Victoria, Australia; Department of Medicine, Monash University, Melbourne, Victoria, Australia; Department of Cardiology, Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | - Stephen Quinn
- Swinburne University of Technology, Department of Health Science and Biostatistics, Hawthorn, Victoria, Australia
| | - David Tong
- Department of Cardiology, Peninsula Health, Melbourne, Victoria, Australia; St Vincent's Hospital, Melbourne, Victoria, Australia
| | - Andrew Boyle
- School of Medicine and Public Health, University of Newcastle, New South Wales, Australia
| | - Christian Hamilton-Craig
- The Prince Charles Hospital, Brisbane, Queensland, Australia; School of Medicine, Griffith University, Australia
| | - Heath Adams
- Royal Hobart Hospital, Hobart, Tasmania, Australia
| | - Jamie Layland
- Department of Cardiology, Peninsula Health, Melbourne, Victoria, Australia; Department of Medicine, Monash University, Melbourne, Victoria, Australia.
| |
Collapse
|
19
|
Dawson LP, Smith K, Cullen L, Nehme Z, Lefkovits J, Taylor AJ, Stub D. Care Models for Acute Chest Pain That Improve Outcomes and Efficiency. J Am Coll Cardiol 2022; 79:2333-2348. [DOI: 10.1016/j.jacc.2022.03.380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 03/30/2022] [Accepted: 03/30/2022] [Indexed: 10/18/2022]
|
20
|
Dawson LP, Andrew E, Nehme Z, Bloom J, Liew D, Cox S, Anderson D, Stephenson M, Lefkovits J, Taylor AJ, Kaye D, Cullen L, Smith K, Stub D. Development and validation of a comprehensive early risk prediction model for patients with undifferentiated acute chest pain. Int J Cardiol Heart Vasc 2022; 40:101043. [PMID: 35514876 PMCID: PMC9062672 DOI: 10.1016/j.ijcha.2022.101043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 04/24/2022] [Indexed: 11/22/2022]
Abstract
Aims Existing risk scores for undifferentiated chest pain focus on excluding coronary events and do not represent a comprehensive risk assessment if an alternate serious diagnosis is present. This study aimed to develop and validate an all-inclusive risk prediction model among patients with undifferentiated chest pain. Methods We developed and validated a multivariable logistic regression model for a composite measure of early all-inclusive risk (defined as hospital admission excluding a discharge diagnosis of non-specific pain, 30-day all-cause mortality, or 30-day myocardial infarction [MI]) among adults assessed by emergency medical services (EMS) for non-traumatic chest pain using a large population-based cohort (January 2015 to June 2019). The cohort was randomly divided into development (146,507 patients [70%]) and validation (62,788 patients [30%]) cohorts. Results The composite outcome occurred in 28.4%, comprising hospital admission in 27.7%, mortality within 30-days in 1.8%, and MI within 30-days in 0.4%. The Early Chest pain Admission, MI, and Mortality (ECAMM) risk model was developed, demonstrating good discrimination in the development (C-statistic 0.775, 95% CI 0.772-0.777) and validation cohorts (C-statistic 0.765, 95% CI 0.761-0.769) with excellent calibration. Discriminatory performance for the composite outcome and individual components was higher than existing scores commonly used in undifferentiated chest pain risk stratification. Conclusions The ECAMM risk score model can be used as an all-inclusive risk stratification assessment of patients with non-traumatic chest pain without the limitation of a single diagnostic outcome. This model could be clinically useful to help guide decisions surrounding the need for non-coronary investigations and safety of early discharge.
Collapse
Affiliation(s)
- Luke P. Dawson
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Department of Cardiology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | - Emily Andrew
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Ambulance Victoria, Melbourne, Victoria, Australia
| | - Ziad Nehme
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Ambulance Victoria, Melbourne, Victoria, Australia
- Department of Paramedicine, Monash University, Melbourne, Victoria, Australia
| | - Jason Bloom
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia
- The Baker Institute, Melbourne, Victoria, Australia
| | - Danny Liew
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Shelley Cox
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Ambulance Victoria, Melbourne, Victoria, Australia
| | - David Anderson
- Ambulance Victoria, Melbourne, Victoria, Australia
- Department of Intensive Care Medicine, The Alfred Hospital, Melbourne, Victoria, Australia
| | - Michael Stephenson
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Ambulance Victoria, Melbourne, Victoria, Australia
- Department of Paramedicine, Monash University, Melbourne, Victoria, Australia
| | - Jeffrey Lefkovits
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Department of Cardiology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | - Andrew J. Taylor
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia
- Department of Medicine, Monash University, Victoria, Australia
| | - David Kaye
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia
- The Baker Institute, Melbourne, Victoria, Australia
| | - Louise Cullen
- Emergency and Trauma Centre, Royal Brisbane and Women’s Hospital, Brisbane, Australia
| | - Karen Smith
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Ambulance Victoria, Melbourne, Victoria, Australia
- Department of Paramedicine, Monash University, Melbourne, Victoria, Australia
| | - Dion Stub
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- The Baker Institute, Melbourne, Victoria, Australia
| |
Collapse
|
21
|
Dawson LP, Andrew E, Nehme Z, Bloom J, Okyere D, Cox S, Anderson D, Stephenson M, Lefkovits J, Taylor AJ, Kaye D, Smith K, Stub D. Incidence, diagnoses and outcomes of ambulance attendances for chest pain: A population-based cohort study. Ann Epidemiol 2022; 72:32-39. [PMID: 35513303 DOI: 10.1016/j.annepidem.2022.04.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 04/26/2022] [Accepted: 04/26/2022] [Indexed: 01/09/2023]
Abstract
AIMS Non-traumatic chest pain is one of the most common reasons for calls for emergency assistance and places a significant burden on health services. This study aimed to determine age- and sex-specific incidences, diagnoses, and outcomes of patients with chest pain attended by paramedics using a large population-based sample. METHODS Consecutive emergency medical services (EMS) attendances for non-traumatic chest pain in Victoria, Australia from January 2015 to June 2019 were included. Data were individually linked to emergency, hospital admission and mortality records. RESULTS During the study period (representing 22,186,930 person-years), chest pain was the reason for contacting EMS in 257,017 of 2,736,570 attendances (9.4%). Overall incidence of chest pain attendances was 1,158 (per 100,000 person-years) with a higher incidence observed with increasing age, among females, among Aboriginal and Torres Strait Islanders, in regional settings, and in socially disadvantaged areas. The most common diagnoses were non-specific pain (46%; 30-day mortality 0.5%), non-ST elevation myocardial infarction (5.3%; mortality 1.3%), pneumonia (3.8%; mortality 3.9%), stable coronary syndromes (3.5%; mortality 0.8%), unstable angina (3.3%; mortality 1.3%), and ST-elevation myocardial infarction (2.8%; mortality 7.0%), while pulmonary embolism (0.7%; mortality 3.2%) and aortic pathologies (0.2%; mortality 22.2%) were rare. CONCLUSIONS Chest pain accounts for one in ten ambulance calls, and underlying causes are diverse, with substantial differences according to age and sex. Almost half of patients are discharged from hospital with a diagnosis of non-specific pain and low rates of mortality.
Collapse
Affiliation(s)
- Luke P Dawson
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia; Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia; Department of Cardiology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | - Emily Andrew
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia; Centre for Research and Evaluation, Ambulance Victoria, Melbourne, Victoria, Australia
| | - Ziad Nehme
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia; Centre for Research and Evaluation, Ambulance Victoria, Melbourne, Victoria, Australia; Department of Paramedicine, Monash University, Melbourne, Victoria, Australia
| | - Jason Bloom
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia; Cardiology and Therapeutics Division, The Baker Institute, Melbourne, Victoria, Australia
| | - Daniel Okyere
- Centre for Research and Evaluation, Ambulance Victoria, Melbourne, Victoria, Australia
| | - Shelley Cox
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia; Centre for Research and Evaluation, Ambulance Victoria, Melbourne, Victoria, Australia
| | - David Anderson
- Centre for Research and Evaluation, Ambulance Victoria, Melbourne, Victoria, Australia; Department of Intensive Care Medicine, The Alfred Hospital, Melbourne, Victoria, Australia
| | - Michael Stephenson
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia; Centre for Research and Evaluation, Ambulance Victoria, Melbourne, Victoria, Australia; Department of Paramedicine, Monash University, Melbourne, Victoria, Australia
| | - Jeffrey Lefkovits
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia; Department of Cardiology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | - Andrew J Taylor
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia; Department of Medicine, Monash University, Victoria, Australia; Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - David Kaye
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia; Cardiology and Therapeutics Division, The Baker Institute, Melbourne, Victoria, Australia
| | - Karen Smith
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia; Centre for Research and Evaluation, Ambulance Victoria, Melbourne, Victoria, Australia; Department of Paramedicine, Monash University, Melbourne, Victoria, Australia
| | - Dion Stub
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia; Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia; Cardiology and Therapeutics Division, The Baker Institute, Melbourne, Victoria, Australia.
| |
Collapse
|
22
|
Dawson LP, Andrew E, Nehme Z, Bloom J, Biswas S, Cox S, Anderson D, Stephenson M, Lefkovits J, Taylor AJ, Kaye D, Smith K, Stub D. Association of Socioeconomic Status With Outcomes and Care Quality in Patients Presenting With Undifferentiated Chest Pain in the Setting of Universal Health Care Coverage. J Am Heart Assoc 2022; 11:e024923. [PMID: 35322681 PMCID: PMC9075482 DOI: 10.1161/jaha.121.024923] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
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 to socioeconomic status (SES) in a universal health coverage setting. METHODS AND RESULTS This was a population‐based cohort study of individually linked ambulance, emergency, hospital admission, and mortality data in the state of Victoria, Australia, from January 2015 to June 2019 that included 183 232 consecutive emergency medical services attendances for adults with nontraumatic chest pain (mean age 62 [SD 18] years; 51% women) and excluded out‐of‐hospital cardiac arrest and ST‐segment–elevation myocardial infarction. Age‐standardized incidence of chest pain was higher for patients residing in lower SES areas (lowest SES quintile 1595 versus highest SES quintile 760 per 100 000 person‐years; P<0.001). Patients of lower SES were less likely to attend metropolitan, private, or revascularization‐capable hospitals and had greater comorbidities. In multivariable models adjusted for clinical characteristics and final diagnosis, lower SES quintiles were associated with increased risks of 30‐day and long‐term mortality, readmission for chest pain and acute coronary syndrome, lower acuity emergency department triage categorization, emergency department length of stay >4 hours, and emergency department or emergency medical services discharge without hospital admission and were inversely associated with use of prehospital ECGs and transfer to a revascularization‐capable hospital for patients presenting to non‐percutaneous coronary intervention centers. CONCLUSIONS In this study, lower SES was associated with a higher incidence of chest pain presentations to emergency medical services and differences in care and outcomes. These findings suggest that substantial disparities for socioeconomically disadvantaged chest pain cohorts exist, even in the setting of universal health care access.
Collapse
Affiliation(s)
- Luke P Dawson
- Department of Cardiology The Alfred Hospital Melbourne Victoria Australia.,Department of Epidemiology and Preventive Medicine Monash University Melbourne Victoria Australia.,Department of Cardiology The Royal Melbourne Hospital Melbourne Victoria Australia
| | - Emily Andrew
- Department of Epidemiology and Preventive Medicine Monash University Melbourne Victoria Australia.,Ambulance Victoria Melbourne Victoria Australia
| | - Ziad Nehme
- Department of Epidemiology and Preventive Medicine Monash University Melbourne Victoria Australia.,Ambulance Victoria Melbourne Victoria Australia.,Department of Paramedicine Monash University Melbourne Victoria Australia
| | - Jason Bloom
- Department of Cardiology The Alfred Hospital Melbourne Victoria Australia.,The Baker Institute Melbourne Victoria Australia
| | - Sinjini Biswas
- Department of Epidemiology and Preventive Medicine Monash University Melbourne Victoria Australia
| | - Shelley Cox
- Department of Epidemiology and Preventive Medicine Monash University Melbourne Victoria Australia.,Ambulance Victoria Melbourne Victoria Australia
| | - David Anderson
- Ambulance Victoria Melbourne Victoria Australia.,Department of Intensive Care Medicine The Alfred Hospital Melbourne Victoria Australia
| | - Michael Stephenson
- Department of Epidemiology and Preventive Medicine Monash University Melbourne Victoria Australia.,Ambulance Victoria Melbourne Victoria Australia.,Department of Paramedicine Monash University Melbourne Victoria Australia
| | - Jeffrey Lefkovits
- Department of Epidemiology and Preventive Medicine Monash University Melbourne Victoria Australia.,Department of Cardiology The Royal Melbourne Hospital Melbourne Victoria Australia
| | - Andrew J Taylor
- Department of Cardiology The Alfred Hospital Melbourne Victoria Australia.,Department of Epidemiology and Preventive Medicine Monash University Melbourne Victoria Australia.,Department of Medicine Monash University Melbourne Victoria Australia
| | - David Kaye
- Department of Cardiology The Alfred Hospital Melbourne Victoria Australia.,The Baker Institute Melbourne Victoria Australia
| | - Karen Smith
- Department of Epidemiology and Preventive Medicine Monash University Melbourne Victoria Australia.,Ambulance Victoria Melbourne Victoria Australia.,Department of Paramedicine Monash University Melbourne Victoria Australia
| | - Dion Stub
- Department of Cardiology The Alfred Hospital Melbourne Victoria Australia.,Department of Epidemiology and Preventive Medicine Monash University Melbourne Victoria Australia.,The Baker Institute Melbourne Victoria Australia
| |
Collapse
|
23
|
Dawson LP, Lum M, Nerleker N, Nicholls SJ, Layland J. Coronary Atherosclerotic Plaque Regression: JACC State-of-the-Art Review. J Am Coll Cardiol 2022; 79:66-82. [PMID: 34991791 DOI: 10.1016/j.jacc.2021.10.035] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 09/03/2021] [Accepted: 10/05/2021] [Indexed: 12/12/2022]
Abstract
Over the last 3 decades there have been substantial improvements in treatments aimed at reducing cardiovascular (CV) events. As these treatments have been developed, there have been parallel improvements in coronary imaging modalities that can assess plaque volumes and composition, using both invasive and noninvasive techniques. Plaque progression can be seen to precede CV events, and therefore, many studies have longitudinally assessed changes in plaque characteristics in response to various treatments, aiming to demonstrate plaque regression and improvements in high-risk features, with the rationale being that this will reduce CV events. In the past, decisions surrounding treatments for atherosclerosis have been informed by population-based risk scores for initiation in primary prevention and low-density lipoprotein cholesterol levels for titration in secondary prevention. If outcome data linking plaque regression to reduced CV events emerge, it may become possible to directly image plaque treatment response to guide management decisions.
Collapse
Affiliation(s)
- Luke P Dawson
- Department of Cardiology, Peninsula Health, Victoria, Australia; Monash University, Melbourne, Victoria, Australia; Department of Cardiology, The Royal Melbourne Hospital, Victoria, Australia; Department of Cardiology, The Alfred Hospital, Victoria, Australia
| | - Mark Lum
- Monash University, Melbourne, Victoria, Australia
| | - Nitesh Nerleker
- Monash University, Melbourne, Victoria, Australia; Department of Cardiology, Monash Health, Clayton, Victoria, Australia; The Baker Institute, Melbourne, Victoria, Australia
| | - Stephen J Nicholls
- Monash University, Melbourne, Victoria, Australia; Department of Cardiology, Monash Health, Clayton, Victoria, Australia
| | - Jamie Layland
- Department of Cardiology, Peninsula Health, Victoria, Australia; Monash University, Melbourne, Victoria, Australia.
| |
Collapse
|
24
|
Bloom JE, Andrew E, Dawson LP, Nehme Z, Stephenson M, Anderson D, Fernando H, Noaman S, Cox S, Milne C, Chan W, Kaye DM, Smith K, Stub D. Incidence and Outcomes of Nontraumatic Shock in Adults Using Emergency Medical Services in Victoria, Australia. JAMA Netw Open 2022; 5:e2145179. [PMID: 35080603 PMCID: PMC8792885 DOI: 10.1001/jamanetworkopen.2021.45179] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
IMPORTANCE Nontraumatic shock is a challenging clinical condition, presenting urgent and unique demands in the prehospital setting. There is a paucity of data assessing its incidence, etiology, and clinical outcomes. OBJECTIVE To assess the incidence, etiology, and clinical outcomes of patients treated by emergency medical services (EMS) with nontraumatic shock using a large population-based sample. DESIGN, SETTING, AND PARTICIPANTS This population-based cohort study included consecutive adult patients with shock not related to trauma who received care by EMS between January 1, 2015, and June 30, 2019, in Victoria, Australia. Data were obtained from individually linked ambulance, hospital, and state death index data sets. During the study period there were 2 485 311 cases attended by EMS, of which 16 827 met the study's inclusion criteria for shock. MAIN OUTCOMES AND MEASURES The primary outcome was 30-day mortality. Secondary outcomes included length of hospital stay, emergency department discharge disposition, rates of coronary angiography and revascularization procedures, and the use of mechanical circulatory support. RESULTS A total of 12 695 patients were successfully linked, with a mean (SD) age of 65.7 (19.1) years; 6411 (50.5%) were men. The overall population-wide incidence of EMS-treated prehospital shock was 76 (95% CI, 75-77) per 100 000 person-years. An increased incidence was observed in men (79 [77-81] per 100 000 person-years), older patients (eg, aged 70-79 years: 177 [171-183] per 100 000 person-years), regional locations (outer regional or remote: 100 [94-107] per 100 000 person-years), and in areas with increased socioeconomic disadvantage (lowest socioeconomic status quintile: 92 [89-95] per 100 000 person-years). Patients with hospital outcome data were stratified into shock etiologies; 3615 (28.5%) had cardiogenic shock: 3998 (31.5%), septic shock; 1457 (11.5%), hypovolemic shock; and 3625 (28.6%), other causes of shock. Nearly one-third of patients (4158 [32.8%]) were deceased at 30 days. In multivariable analyses, increased age (all etiologies: hazard ratio [HR], 1.04; 95% CI, 1.03-1.04), female sex (cardiogenic shock: HR, 1.26; 95% CI, 1.12-1.42), increased initial heart rate (all etiologies: 1.01; 95% CI, 1.00-1.01), prehospital intubation (all etiologies: HR, 3.93; 95% CI, 3.48-4.44), and preexisting comorbidities (eg, chronic kidney disease, all etiologies: HR, 1.25; 95% CI, 1.10-1.42) were independently associated with 30-day mortality, while higher socioeconomic status (all etiologies: HR, 0.96; 95% CI, 0.94-0.98) and increased initial systolic blood pressure (all etiologies: HR, 0.99; 95% CI, 0.99-0.99) were associated with lower risk. CONCLUSIONS AND RELEVANCE This population-level cohort study found that EMS-treated nontraumatic shock was a common condition, with a high risk of morbidity and mortality regardless of etiology. It disproportionately affected men, older patients, patients in regional areas, and those with social disadvantage. Further studies are required to assess how current systems of care can be optimized to improve outcomes.
Collapse
Affiliation(s)
- Jason E. Bloom
- Department of Cardiology, Alfred Health, Melbourne, Victoria, Australia
- Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
- Department of Cardiology, Western Health, St Albans, Victoria, Australia
- Ambulance Victoria, Blackburn, Victoria, Australia
| | - Emily Andrew
- Ambulance Victoria, Blackburn, Victoria, Australia
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Luke P. Dawson
- Department of Cardiology, Alfred Health, Melbourne, Victoria, Australia
- Ambulance Victoria, Blackburn, Victoria, Australia
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Ziad Nehme
- Ambulance Victoria, Blackburn, Victoria, Australia
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Department of Paramedicine, Monash University, Frankston, Victoria, Australia
| | - Michael Stephenson
- Ambulance Victoria, Blackburn, Victoria, Australia
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Department of Paramedicine, Monash University, Frankston, Victoria, Australia
| | - David Anderson
- Department of Cardiology, Alfred Health, Melbourne, Victoria, Australia
- Ambulance Victoria, Blackburn, Victoria, Australia
| | - Himawan Fernando
- Department of Cardiology, Alfred Health, Melbourne, Victoria, Australia
- Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Samer Noaman
- Department of Cardiology, Alfred Health, Melbourne, Victoria, Australia
- Department of Cardiology, Western Health, St Albans, Victoria, Australia
| | - Shelley Cox
- Ambulance Victoria, Blackburn, Victoria, Australia
| | | | - William Chan
- Department of Cardiology, Alfred Health, Melbourne, Victoria, Australia
- Department of Cardiology, Western Health, St Albans, Victoria, Australia
| | - David M. Kaye
- Department of Cardiology, Alfred Health, Melbourne, Victoria, Australia
- Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Karen Smith
- Ambulance Victoria, Blackburn, Victoria, Australia
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Department of Paramedicine, Monash University, Frankston, Victoria, Australia
| | - Dion Stub
- Department of Cardiology, Alfred Health, Melbourne, Victoria, Australia
- Department of Cardiology, Western Health, St Albans, Victoria, Australia
- Ambulance Victoria, Blackburn, Victoria, Australia
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| |
Collapse
|
25
|
Dawson LP, Dinh DT, Stub D, Ahern S, Bloom JE, Duffy SJ, Lefkovits J, Brennan A, Reid CM, Oqueli E. Health-related quality of life following percutaneous coronary intervention during the COVID-19 pandemic. Qual Life Res 2022; 31:2375-2385. [PMID: 34978043 PMCID: PMC8720546 DOI: 10.1007/s11136-021-03056-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/25/2021] [Indexed: 12/02/2022]
Abstract
Purpose During the COVID-19 pandemic, widespread public health measures were implemented to control community transmission. The association between these measures and health-related quality of life (HRQOL) among patients following percutaneous coronary intervention has not been studied. Methods We included consecutive patients undergoing percutaneous coronary intervention (PCI) in the state-wide Victorian Cardiac Outcomes Registry between 1/3/2020 and 30/9/2020 (COVID-19 period; n = 5024), with a historical control group from the identical period one year prior (control period; n = 5041). HRQOL assessment was performed via telephone follow-up 30 days following PCI using the 3-level EQ-5D questionnaire and Australian-specific index values. Results Baseline characteristics were similar between groups, but during the COVID-19 period indication for PCI was more common for acute coronary syndromes. No patients undergoing PCI were infected with COVID-19 at the time of their procedure. EQ-5D visual analogue score (VAS), index score, and individual components were higher at 30 days following PCI during the COVID-19 period (all P < 0.01). In multivariable analysis, the COVID-19 period was independently associated with higher VAS and index scores. No differences were observed between regions or stage of restrictions in categorical analysis. Similarly, in subgroup analysis, no significant interactions were observed. Conclusion Measures of HRQOL following PCI were higher during the COVID-19 pandemic compared to the previous year. These data suggest that challenging community circumstances may not always be associated with poor patient quality of life. Supplementary Information The online version contains supplementary material available at 10.1007/s11136-021-03056-0.
Collapse
Affiliation(s)
- Luke P Dawson
- Department of Cardiology, Royal Melbourne Hospital, Melbourne, VIC, Australia.,Department of Cardiology, The Alfred Hospital, Melbourne, VIC, Australia.,School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, Australia
| | - Diem T Dinh
- School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, Australia
| | - Dion Stub
- Department of Cardiology, The Alfred Hospital, Melbourne, VIC, Australia.,School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, Australia.,Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
| | - Susannah Ahern
- School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, Australia
| | - Jason E Bloom
- Department of Cardiology, The Alfred Hospital, Melbourne, VIC, Australia.,School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, Australia.,Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
| | - Stephen J Duffy
- Department of Cardiology, The Alfred Hospital, Melbourne, VIC, Australia.,School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, Australia.,Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
| | - Jeffrey Lefkovits
- Department of Cardiology, Royal Melbourne Hospital, Melbourne, VIC, Australia.,School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, Australia
| | - Angela Brennan
- School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, Australia
| | - Christopher M Reid
- School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, Australia.,Centre of Clinical Research and Education, School of Public Health, Curtin University, Perth, WA, Australia
| | - Ernesto Oqueli
- Department of Cardiology, Ballarat Health Services, 1 Drummond St North, Ballarat, VIC, 3350, Australia. .,School of Medicine, Faculty of Health, Deakin University, Geelong, VIC, Australia.
| | | |
Collapse
|
26
|
Dawson LP, Chen D, Dagan M, Bloom J, Taylor A, Duffy SJ, Shaw J, Lefkovits J, Stub D. Assessment of Pretreatment With Oral P2Y12 Inhibitors and Cardiovascular and Bleeding Outcomes in Patients With Non-ST Elevation Acute Coronary Syndromes: A Systematic Review and Meta-analysis. JAMA Netw Open 2021; 4:e2134322. [PMID: 34797371 PMCID: PMC8605486 DOI: 10.1001/jamanetworkopen.2021.34322] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
IMPORTANCE The practice of pretreatment with oral P2Y12 inhibitors in non-ST elevation acute coronary syndromes (NSTEACS) remains common; however, its association with improved cardiovascular outcomes is unclear. OBJECTIVE To assess the association between oral P2Y12 inhibitor pretreatment and cardiovascular and bleeding outcomes in patients with NSTEACS. DATA SOURCES On March 20, 2021, PubMed, MEDLINE, Embase, Scopus, Web of Science, Science Direct, clinicaltrials.gov, and the Cochrane Central Register for Controlled Trials were searched from database inception. STUDY SELECTION Randomized clinical trials of patients with NSTEACS randomized to either oral P2Y12 inhibitor pretreatment (defined as prior to angiography) or no pretreatment (defined as following angiography, once coronary anatomy was known) among patients undergoing an invasive strategy. DATA EXTRACTION AND SYNTHESIS This study followed Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines. Data on publication year, sample size, clinical characteristics, revascularization strategy, P2Y12 inhibitor type and dosage, time from pretreatment to angiography, and end point data were independently extracted by 2 authors. A random-effects model was used, including stratification by (1) P2Y12 inhibitor type, (2) revascularization strategy, and (3) access site. MAIN OUTCOMES AND MEASURES The primary end point was 30-day major adverse cardiac events (MACEs). Secondary end points were 30-day myocardial infarction (MI) and cardiovascular death. The primary safety end point was 30-day major bleeding (defined according to individual studies). RESULTS A total of 7 trials randomizing 13 226 patients to either pretreatment (6603 patients) or no pretreatment (6623 patients) were included. The mean age of patients was 64 years and 3598 (27.2%) were female individuals. Indication for P2Y12 inhibitors was non-ST elevation myocardial infarction in 7430 patients (61.7%), radial access was used in 4295 (32.6%), and 10 945 (82.8%) underwent percutaneous coronary intervention. Pretreatment was not associated with a reduction in 30-day MACE (odds ratio [OR], 0.95; 95% CI, 0.78-1.15; I2 = 28%), 30-day MI (OR, 0.90; 95% CI, 0.72-1.12; I2 = 19%), or 30-day cardiovascular death (OR, 0.79; 95% CI, 0.49-1.27; I2 = 0%). The risk of 30-day major bleeding was increased among patients who underwent pretreatment (OR, 1.51; 95% CI, 1.16-1.97; I2 = 41%). The number needed to harm to bring about 1 major bleeding event with oral P2Y12 inhibitor pretreatment was 63 patients. CONCLUSIONS AND RELEVANCE In this study, pretreatment with oral P2Y12 inhibitors among patients with NSTEACS prior to angiography, compared with treatment once coronary anatomy is known, was associated with increased bleeding risk and no difference in cardiovascular outcomes. Routine pretreatment with oral P2Y12 inhibitors in patients with NSTEACS receiving an early invasive strategy is not supported by this study.
Collapse
Affiliation(s)
- Luke P. Dawson
- Department of Cardiology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia
| | - David Chen
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Misha Dagan
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia
| | - Jason Bloom
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia
- The Baker Institute, Melbourne, Victoria, Australia
| | - Andrew Taylor
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia
| | - Stephen J. Duffy
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia
- The Baker Institute, Melbourne, Victoria, Australia
| | - James Shaw
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia
- The Baker Institute, Melbourne, Victoria, Australia
| | - Jeffrey Lefkovits
- Department of Cardiology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Dion Stub
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia
- The Baker Institute, Melbourne, Victoria, Australia
| |
Collapse
|
27
|
Dawson LP, Dinh D, Duffy SJ, Clark D, Reid CM, Brennan A, Andrianopoulos N, Hiew C, Freeman M, Oqueli E, Chan W, Ajani AE. Temporal Trends in Patient Risk Profile and Clinical Outcomes Following Percutaneous Coronary Intervention. Cardiovascular Revascularization Medicine 2021; 31:10-16. [DOI: 10.1016/j.carrev.2020.12.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 12/15/2020] [Accepted: 12/15/2020] [Indexed: 11/26/2022]
|
28
|
Dawson LP, Biswas S, Lefkovits J, Stub D, Burchill L, Evans SM, Reid C, Eccleston D. Characteristics and Quality of National Cardiac Registries: A Systematic Review. Circ Cardiovasc Qual Outcomes 2021; 14:e007963. [PMID: 34517724 PMCID: PMC8452241 DOI: 10.1161/circoutcomes.121.007963] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Supplemental Digital Content is available in the text. Background: National cardiac registries are increasingly used for informing health policy, improving the quality and cost-effectiveness of patient care, clinical research, and monitoring the safety of novel treatments. However, the quality of registries is variable. We aimed to assess the characteristics and quality of national cardiac registries across all subspecialties of cardiac care. Methods: Publications relating to national cardiac registries across six cardiac subspecialty domains were identified by searching MEDLINE and the Google advanced search function with 26 438 citations and 4812 full-text articles reviewed. Results: A total of 155 registries, representing 49 countries, were included in the study. Of these, 45 related to coronary disease or percutaneous coronary intervention, 28 related to devices, arrhythmia, and electrophysiology, 24 related to heart failure, transplant, and mechanical support, 21 related to structural heart disease, 21 related to congenital heart disease, and 16 related to cardiac surgery. Enrollment was procedure-based in 60% and disease-based in 40%. A total of 73.10 million patients were estimated to have been enrolled in cardiac registries. Quality scoring was performed using a validated registry grading system, with registries performing best in the use of explicit variable definitions and worst in assessment of data reliability. Higher quality scores were associated with government funding, mandated enrollment, linkage to other registries, and outcome risk adjustment. Quality scores and number of registries within a country were positively correlated with each other and with measures of national economic output, health expenditure, and urbanization. Conclusions: There has been remarkable growth in the uptake of national cardiac registries across the last few decades. However, the quality of processes used to ensure data completeness and accuracy remain variable and few countries have integrated registries covering multiple subspecialty domains. Clinicians, funders, and health policymakers should be encouraged to focus on the range, quality, and integration of these registries. Registration: URL: https://www.crd.york.ac.uk/prospero; Unique identifier: CRD42020204224.
Collapse
Affiliation(s)
- Luke P Dawson
- Department of Cardiology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia (L.P.D., J.L., L.B., D.E.).,Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia (L.P.D., S.B., J.L., D.S., S.M.E., C.R.).,Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia (L.P.D., D.S.)
| | - Sinjini Biswas
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia (L.P.D., S.B., J.L., D.S., S.M.E., C.R.)
| | - Jeffrey Lefkovits
- Department of Cardiology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia (L.P.D., J.L., L.B., D.E.).,Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia (L.P.D., S.B., J.L., D.S., S.M.E., C.R.)
| | - Dion Stub
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia (L.P.D., S.B., J.L., D.S., S.M.E., C.R.).,Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia (L.P.D., D.S.).,The Baker Institute, Melbourne, Victoria, Australia (D.S.)
| | - Luke Burchill
- Department of Cardiology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia (L.P.D., J.L., L.B., D.E.).,Department of Medicine, Melbourne University, Victoria, Australia (L.B., D.E.)
| | - Sue M Evans
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia (L.P.D., S.B., J.L., D.S., S.M.E., C.R.)
| | - Christopher Reid
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia (L.P.D., S.B., J.L., D.S., S.M.E., C.R.).,Curtin School of Population Health, Curtin University, Perth, Western Australia, Australia (C.R.)
| | - David Eccleston
- Department of Cardiology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia (L.P.D., J.L., L.B., D.E.).,Department of Medicine, Melbourne University, Victoria, Australia (L.B., D.E.)
| |
Collapse
|
29
|
Dawson LP, Burchill L, O'Brien J, Dinh D, Duffy SJ, Stub D, Brennan A, Clark D, Oqueli E, Hiew C, Freeman M, Reid CM, Ajani AE. Differences in outcome of percutaneous coronary intervention between Indigenous and non-Indigenous people in Victoria, Australia: a multicentre, prospective, observational, cohort study. Lancet Glob Health 2021; 9:e1296-e1304. [PMID: 34274040 DOI: 10.1016/s2214-109x(21)00224-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 05/02/2021] [Accepted: 05/05/2021] [Indexed: 12/23/2022]
Abstract
BACKGROUND Data on the patient characteristics and health outcomes of Indigenous Australians having revascularisation for treatment of coronary artery disease are scarce. The aim of this study was to assess differences in patient characteristics, presentations, and outcomes among Indigenous and non-Indigenous Australians having percutaneous coronary intervention (PCI) in urban and larger regional centres in Victoria, Australia. METHODS In this multicentre, prospective, observational cohort study, data were prospectively collected from six government-funded tertiary hospitals in the state of Victoria, Australia. The Melbourne Interventional Group PCI registry was used to identify patients having PCI at Victorian metropolitan and large regional hospitals between Jan 1, 2005, and Dec 31, 2018. The primary outcome was long-term mortality. Secondary outcomes were 30 day mortality and 30 day major adverse cardiovascular events (MACE), defined as a composite endpoint of death, myocardial infarction, and target-vessel revascularisation. Regression analyses, adjusted for clinically relevant covariates and geographical and socioeconomic indices, were used to establish the influence of Indigenous status on these study outcomes. FINDINGS 41 146 patient procedures were entered into the registry, of whom 179 (0·4%) were recorded as identifying as Indigenous Australian, 39 855 (96·9%) were not Indigenous Australian, and 1112 (2·7%) had incomplete data regarding ethnicity and were excluded. Compared with their non-Indigenous counterparts, Indigenous patients were younger, more often women, and more likely to have comorbidities. Indigenous Australians were also more likely to live in a regional community and areas of socioeconomic disadvantage. Procedural success and complication rates were similar for Indigenous and non-Indigenous patients having PCI. At 30 day follow-up, Indigenous Australians were more likely to be taking optimal medical therapy, although overall follow-up rates were lower and prevalence of persistent smoking was higher. Multivariable analysis showed that Indigenous status was independently associated with increased risk of long-term mortality (hazard ratio 2·49, 95% CI 1·79-3·48; p<0·0001), 30 day mortality (odds ratio 2·78, 95% CI 1·09-7·12; p=0·033), and 30-day MACE (odds ratio 1·87, 95% CI 1·03-3·39; p=0·039). INTERPRETATION Indigenous Australians having PCI in urban and larger regional centres are at increased risk of mortality and adverse cardiac events. Clinically effective and culturally safe care pathways are urgently needed to improve health outcomes among Indigenous Australians who are having PCI. FUNDING National Health and Medical Research Council, National Heart Foundation.
Collapse
Affiliation(s)
- Luke P Dawson
- Department of Cardiology, Royal Melbourne Hospital, Melbourne, VIC, Australia
| | - Luke Burchill
- Department of Cardiology, Royal Melbourne Hospital, Melbourne, VIC, Australia; Department of Medicine, Melbourne University, Melbourne, VIC, Australia
| | - Jessica O'Brien
- Department of Cardiology, The Alfred Hospital, Melbourne, VIC, Australia
| | - Diem Dinh
- Centre of Cardiovascular Research and Education in Therapeutics, Monash University, Melbourne, VIC, Australia
| | - Stephen J Duffy
- Department of Cardiology, The Alfred Hospital, Melbourne, VIC, Australia; Centre of Cardiovascular Research and Education in Therapeutics, Monash University, Melbourne, VIC, Australia; Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
| | - Dion Stub
- Department of Cardiology, The Alfred Hospital, Melbourne, VIC, Australia; Centre of Cardiovascular Research and Education in Therapeutics, Monash University, Melbourne, VIC, Australia; Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
| | - Angela Brennan
- Centre of Cardiovascular Research and Education in Therapeutics, Monash University, Melbourne, VIC, Australia
| | - David Clark
- Department of Cardiology, Austin Health, Melbourne, VIC, Australia
| | - Ernesto Oqueli
- Department of Cardiology, Ballarat Health Services, Ballarat, VIC, Australia; School of Medicine, Faculty of Health, Deakin University, Geelong, VIC, Australia
| | - Chin Hiew
- Department of Cardiology, University Hospital, Geelong, VIC, Australia
| | - Melanie Freeman
- Department of Cardiology, Box Hill Hospital, Melbourne, VIC, Australia
| | - Christopher M Reid
- Centre of Cardiovascular Research and Education in Therapeutics, Monash University, Melbourne, VIC, Australia; Centre of Clinical Research and Education, School of Public Health, Curtin University, Perth, WA, Australia
| | - Andrew E Ajani
- Department of Cardiology, Royal Melbourne Hospital, Melbourne, VIC, Australia; Department of Medicine, Melbourne University, Melbourne, VIC, Australia; Centre of Cardiovascular Research and Education in Therapeutics, Monash University, Melbourne, VIC, Australia.
| | | |
Collapse
|
30
|
Bloom JE, Andrew E, Nehme Z, Dinh DT, Fernando H, Shi WY, Vriesendorp P, Nanayakarra S, Dawson LP, Brennan A, Noaman S, Layland J, William J, Al-Fiadh A, Brooks M, Freeman M, Hutchinson A, McGaw D, Van Gaal W, Willson W, White A, Prakash R, Reid C, Lefkovits J, Duffy SJ, Chan W, Kaye DM, Stephenson M, Bernard S, Smith K, Stub D. Pre-hospital heparin use for ST-elevation myocardial infarction is safe and improves angiographic outcomes. Eur Heart J Acute Cardiovasc Care 2021; 10:1140-1147. [PMID: 34189566 DOI: 10.1093/ehjacc/zuab032] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/12/2021] [Accepted: 04/30/2021] [Indexed: 11/12/2022]
Abstract
AIMS This study aims to evaluate if pre-hospital heparin administration by paramedics is safe and improves clinical outcomes. METHODS AND RESULTS 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 and December 2018. Information on thrombolysis in myocardial infarction (TIMI) flow at angiography was available in a subset of cases. Patients receiving pre-hospital heparin were compared to those who did not receive heparin. Findings at coronary angiography and 30-day clinical outcomes were compared between groups. Propensity-score matching was performed for risk adjustment. We identified a total of 4720 patients. Of these, 1967 patients had TIMI flow data available. Propensity-score matching in the entire cohort yielded 1373 matched pairs. In the matched cohort, there was no observed difference in 30-day mortality (no-heparin 3.5% vs. heparin 3.0%, P = 0.25), MACCE (no-heparin 7% vs. heparin 6.2%, P = 0.44), and major bleeding (no-heparin 1.9% vs. heparin 1.4%, P = 0.64) between groups. Propensity-score analysis amongst those with TIMI data produced 552 matched pairs. The proportion of cases with TIMI 0 or 1 flow in the infarct-related artery (IRA) was lower among those receiving pre-hospital heparin (66% vs. 76%, P < 0.001) compared to those who did not. CONCLUSION In this multicentre, propensity-score matched study, the use of pre-hospital heparin by paramedics was safe and is associated with fewer occluded IRAs in patients presenting with STEMI.
Collapse
Affiliation(s)
- Jason E Bloom
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia.,Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC 3004, Australia
| | - Emily Andrew
- School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia.,Ambulance Victoria, 31 Joseph Street, Blackburn, VIC 3130, Australia
| | - Ziad Nehme
- School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia.,Ambulance Victoria, 31 Joseph Street, Blackburn, VIC 3130, Australia
| | - Diem T Dinh
- School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia
| | - Himawan Fernando
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia.,Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC 3004, Australia
| | - William Y Shi
- Melbourne Medical School, Ground Floor, Medical Building, Grattan Street, University of Melbourne, VIC 3010, Australia.,Division of Cardiac Surgery, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114, USA
| | - Pieter Vriesendorp
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia
| | - Shane Nanayakarra
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia.,Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC 3004, Australia
| | - Luke P Dawson
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia.,School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia
| | - Angela Brennan
- School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia
| | - Samer Noaman
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia.,Melbourne Medical School, Ground Floor, Medical Building, Grattan Street, University of Melbourne, VIC 3010, Australia.,Department of Cardiology, Western Health, Furlong Road, St Albans, VIC 3021, Australia
| | - Jamie Layland
- Department of Cardiology, Peninsula Health, 2 Hastings Road, Frankston, VIC 3199, Australia
| | - Jeremy William
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia
| | - Ali Al-Fiadh
- Department of Cardiology, Austin Health, 145 Studley Road, Heidelberg, VIC 3084, Australia
| | - Matthew Brooks
- Department of Cardiology, Royal Melbourne Hospital, 300 Grattan Street, Parkville, VIC 3050, Australia
| | - Melanie Freeman
- Department of Cardiology, Eastern Health, 5 Arnold Street, Box Hill, VIC 3128, Australia
| | - Adam Hutchinson
- Department of Cardiology, Geelong University Hospital, Bellerine Street, Geelong, VIC 3220, Australia
| | - David McGaw
- Department of Cardiology, Monash Health, 246 Clayton Road, Clayton, VIC 3168, Australia
| | - William Van Gaal
- Department of Cardiology, Northern Health, 185 Cooper Street, Epping, VIC 3076, Australia
| | - William Willson
- Department of Cardiology, Eastern Health, 5 Arnold Street, Box Hill, VIC 3128, Australia
| | - Anthony White
- Curtain University, Kent Street, Bentley, WA 6102, Australia
| | - Roshan Prakash
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia
| | - Christopher Reid
- School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia.,Curtain University, Kent Street, Bentley, WA 6102, Australia
| | - Jeffrey Lefkovits
- Melbourne Medical School, Ground Floor, Medical Building, Grattan Street, University of Melbourne, VIC 3010, Australia.,Department of Cardiology, Royal Melbourne Hospital, 300 Grattan Street, Parkville, VIC 3050, Australia
| | - Stephen J Duffy
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia.,Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC 3004, Australia.,School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia
| | - William Chan
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia.,Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC 3004, Australia.,Melbourne Medical School, Ground Floor, Medical Building, Grattan Street, University of Melbourne, VIC 3010, Australia.,Department of Cardiology, Western Health, Furlong Road, St Albans, VIC 3021, Australia
| | - David M Kaye
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia.,Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC 3004, Australia
| | - Michael Stephenson
- School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia.,Ambulance Victoria, 31 Joseph Street, Blackburn, VIC 3130, Australia
| | - Stephen Bernard
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia.,School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia.,Ambulance Victoria, 31 Joseph Street, Blackburn, VIC 3130, Australia
| | - Karen Smith
- School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia.,Ambulance Victoria, 31 Joseph Street, Blackburn, VIC 3130, Australia
| | - Dion Stub
- Department of Cardiology, Alfred Health, 55 Commercial Road, Melbourne, VIC 3004, Australia.,Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC 3004, Australia.,School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia.,Ambulance Victoria, 31 Joseph Street, Blackburn, VIC 3130, Australia.,Department of Cardiology, Western Health, Furlong Road, St Albans, VIC 3021, Australia
| |
Collapse
|
31
|
Dawson LP, Duffy SJ, Dinh D, Clark D, Brennan A, Ajani AE. Difference in a decade: percutaneous coronary interventions in Australia. Intern Med J 2021; 51:138-139. [PMID: 33572022 DOI: 10.1111/imj.15150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 02/11/2020] [Accepted: 02/25/2020] [Indexed: 12/01/2022]
Affiliation(s)
- Luke P Dawson
- Department of Cardiology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | - Stephen J Duffy
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Diem Dinh
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - David Clark
- Department of Cardiology, Austin Health, Melbourne, Victoria, Australia
| | - Angela Brennan
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Andrew E Ajani
- Department of Cardiology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Department of Medicine, Melbourne University, Melbourne, Victoria, Australia
| |
Collapse
|
32
|
Dagan M, Dawson LP, Stehli J, Koh JQS, Quine E, Stub D, Htun NM, Walton A, Duffy SJ. Periprocedural myocardial injury and coronary artery disease in patients undergoing transcatheter aortic valve replacement. Cardiovasc Revasc Med 2021; 35:8-15. [PMID: 33863658 DOI: 10.1016/j.carrev.2021.04.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 03/22/2021] [Accepted: 04/06/2021] [Indexed: 01/09/2023]
Abstract
BACKGROUND/PURPOSE PPMI and CAD are common in patients undergoing TAVR. Despite several studies evaluating their interaction as well as the influence these factors play on outcomes, there remains no consensus. We sought to evaluate the impact of peri-procedural myocardial injury (PPMI) and incidental coronary artery disease (iCAD) on outcomes in patients undergoing transcatheter aortic valve replacement (TAVR). METHODS/MATERIALS We analyzed prospective data from 400 patients undergoing TAVI for severe aortic stenosis between 2008 and 2018 to determine rates of PPMI (troponin 15× the upper limit of normal) and iCAD (≥50% stenosis) and their impact on long-term mortality. RESULTS Mean age was 83 ± 6 years; 45% were female. PPMI was observed in 65% (254/400). On multivariable logistic regression analysis, higher left ventricular ejection fraction (LVEF) (OR 1.04, 95%CI 1.01-1.06, p = 0.002), and first generation valves (OR 3.00, 95%CI 1.75-5.15, p < 0.001) were independently associated with PPMI, while oral anticoagulation was inversely associated (OR 0.48, 95%CI 0.28-0.82, p = 0.007). PPMI was not associated with 30-day, 1-year or long-term mortality. After excluding previous bypass grafting, iCAD was observed in 40% (129/324). In patients with iCAD, PCI was associated with reduced long-term mortality compared to medical management in adjusted analysis (OR 0.37, 95%CI 0.16-0.88, p = 0.03). CONCLUSIONS PPMI and iCAD in patients undergoing TAVR are common. PPMI is associated with older generation valves and higher LVEF rather than traditional cardiovascular risk factors. In our study, PPMI was not associated with long-term mortality. However, in patients with iCAD, PCI was associated with reduced long-term mortality compared to medical management.
Collapse
Affiliation(s)
- Misha Dagan
- Department of Cardiology, Alfred Hospital, Victoria, Australia
| | - Luke P Dawson
- Department of Cardiology, Royal Melbourne Hospital, Victoria, Australia
| | - Julia Stehli
- Department of Cardiology, Alfred Hospital, Victoria, Australia
| | | | - Edward Quine
- Department of Cardiology, Alfred Hospital, Victoria, Australia
| | - Dion Stub
- Department of Cardiology, Alfred Hospital, Victoria, Australia; Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia; Centre of Cardiovascular Research and Education in Therapeutics, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia
| | - Nay M Htun
- Department of Cardiology, Alfred Hospital, Victoria, Australia
| | - Antony Walton
- Department of Cardiology, Alfred Hospital, Victoria, Australia; Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Stephen J Duffy
- Department of Cardiology, Alfred Hospital, Victoria, Australia; Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia; Centre of Cardiovascular Research and Education in Therapeutics, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia.
| |
Collapse
|
33
|
Bloom JE, Dawson LP, Seneviratne Epa D, Prakash R, Premaratne M, Carrillo De Albornoz P, Htun NM, Layland J. Perceptions of telehealth and cardiac care during the COVID-19 pandemic. Intern Med J 2021; 51:151-152. [PMID: 33572012 PMCID: PMC8013678 DOI: 10.1111/imj.15156] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Accepted: 12/07/2020] [Indexed: 01/15/2023]
Affiliation(s)
- Jason E Bloom
- Department of Cardiology, Peninsula Health, Melbourne, Victoria, Australia.,Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia.,Monash University, Melbourne, Victoria, Australia.,The Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Luke P Dawson
- Department of Cardiology, Peninsula Health, Melbourne, Victoria, Australia
| | | | - Roshan Prakash
- Department of Cardiology, Peninsula Health, Melbourne, Victoria, Australia.,Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia
| | - Manuja Premaratne
- Department of Cardiology, Peninsula Health, Melbourne, Victoria, Australia.,Monash University, Melbourne, Victoria, Australia.,The Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | | | - Nay M Htun
- Department of Cardiology, Peninsula Health, Melbourne, Victoria, Australia.,Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia.,Monash University, Melbourne, Victoria, Australia.,The Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Jamie Layland
- Department of Cardiology, Peninsula Health, Melbourne, Victoria, Australia.,Monash University, Melbourne, Victoria, Australia
| |
Collapse
|
34
|
Dawson LP, Dinh D, O'Brien J, Duffy SJ, Guymer E, Brennan A, Clark D, Oqueli E, Hiew C, Freeman M, Reid CM, Ajani AE. Outcomes of Percutaneous Coronary Intervention in Patients With Rheumatoid Arthritis. Am J Cardiol 2021; 140:39-46. [PMID: 33144158 DOI: 10.1016/j.amjcard.2020.10.048] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 10/21/2020] [Accepted: 10/22/2020] [Indexed: 11/30/2022]
Abstract
Rheumatoid arthritis (RA) is the most common inflammatory arthritis and is associated with increased risk of cardiovascular events and mortality. Evidence regarding outcomes following PCI is limited. This study aimed to assess differences in outcomes following percutaneous coronary intervention (PCI) between patients with and without RA. The Melbourne Interventional Group PCI registry (2005 to 2018) was used to identify 756 patients with RA. Outcomes were compared with the remaining cohort (n = 38,579). Patients with RA were older, more often female, with higher rates of hypertension, previous stroke, peripheral vascular disease, obstructive sleep apnea, chronic lung disease, myocardial infarction, and renal impairment, whereas rates of dyslipidemia and current smoking were lower, all p <0.05. Lesions in patients with RA were more frequently complex (ACC/AHA type B2/C), requiring longer stents, with higher rates of no reflow, all p <0.05. Risk of long-term mortality, adjusted for potential confounders, was higher for patients with RA (hazard ratio 1.53, 95% confidence interval 1.30 to 1.80; median follow-up 5.0 years), whereas 30-day outcomes including mortality, major adverse cardiovascular events, bleeding, stroke, myocardial infarction, coronary artery bypass surgery, and target vessel revascularization were similar. In subgroup analysis, patients with RA and lower BMI (Pfor interaction < 0.001) and/or acute coronary syndromes (Pfor interaction = 0.05) had disproportionately higher risk of long-term mortality compared with patients without RA. In conclusion, patients with RA who underwent PCI had more co-morbidities and longer, complex coronary lesions. Risk of short-term adverse outcomes was similar, whereas risk of long-term mortality was higher, especially among patients with acute coronary syndromes and lower body mass index.
Collapse
Affiliation(s)
- Luke P Dawson
- Department of Cardiology, Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | - Diem Dinh
- Centre of Cardiovascular Research and Education in Therapeutics, Monash University, Melbourne, Victoria, Australia
| | - Jessica O'Brien
- Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia
| | - Stephen J Duffy
- Centre of Cardiovascular Research and Education in Therapeutics, Monash University, Melbourne, Victoria, Australia; Department of Cardiology, The Alfred Hospital, Melbourne, Victoria, Australia; Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Emma Guymer
- Department of Rheumatology, Monash Medical Centre, Melbourne, Victoria, Australia; Department of Medicine, Monash University, Melbourne, Victoria, Australia
| | - Angela Brennan
- Centre of Cardiovascular Research and Education in Therapeutics, Monash University, Melbourne, Victoria, Australia
| | - David Clark
- Department of Cardiology, Austin Health, Melbourne, Victoria, Australia
| | - Ernesto Oqueli
- Department of Cardiology, Ballarat Health Services, Ballarat, Victoria, Australia; School of Medicine, Faculty of Health, Deakin University, Geelong, Victoria, Australia
| | - Chin Hiew
- Department of Cardiology, University Hospital, Geelong, Victoria, Australia
| | - Melanie Freeman
- Department of Cardiology, Box Hill Hospital, Melbourne, Victoria, Australia
| | - Christopher M Reid
- Centre of Cardiovascular Research and Education in Therapeutics, Monash University, Melbourne, Victoria, Australia
| | - Andrew E Ajani
- Department of Cardiology, Royal Melbourne Hospital, Melbourne, Victoria, Australia; Centre of Cardiovascular Research and Education in Therapeutics, Monash University, Melbourne, Victoria, Australia; Department of Medicine, Melbourne University, Victoria, Australia.
| |
Collapse
|
35
|
Quine EJ, Dagan M, William J, Nanayakkara S, Dawson LP, Duffy SJ, Stehli J, Dick RJ, Htun NM, Stub D, Walton AS. Long-Term Outcomes Stratified by Body Mass Index in Patients Undergoing Transcatheter Aortic Valve Implantation. Am J Cardiol 2020; 137:77-82. [PMID: 33017578 DOI: 10.1016/j.amjcard.2020.09.039] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 09/22/2020] [Accepted: 09/23/2020] [Indexed: 12/21/2022]
Abstract
Transcatheter aortic valve implantation (TAVI) is emerging as the default strategy for older patients with severe, symptomatic, and trileaflet aortic stenosis. Increased body-mass index (BMI) is associated with a protective effect in patients undergoing percutaneous coronary intervention. We assessed whether elevated BMI was associated with a similar association in TAVI. We evaluated prospectively collected data from 634 patients who underwent TAVI at 2 centers from August 2008 to April 2019. Patients were stratified as normal weight (BMI 18.5 to 24.9 kg/m2, n = 214), overweight (25 to 29.9 kg/m2, n = 234), and obese (>30 kg/m2, n = 185). Outcomes were reported according to VARC-2 criteria. Mortality was assessed using Cox proportional hazards regression analysis (median follow-up 2 years). Kaplan-Meier analysis was used to estimate cumulative mortality. Baseline differences were seen in age (85 vs 84 vs 82, p <0.001), STS-PROM score (4.3 vs 3.4 vs 3.6, p <0.001), sex (50% vs 36% vs 55% female, p <0.001), clinical frailty score (p = 0.02), diabetes (21% vs 29% vs 40%, p <0.001), and presence of chronic obstructive pulmonary disease (COPD) (13% vs 13% vs 23%, p = 0.009). On multivariable analysis there was no mortality difference between normal and obese patients (hazard ratio [HR] 0.70, confidence interval [CI] 0.46 to 1.1 p = 0.11), however overweight patients had significantly lower mortality (HR 0.56 CI 0.38 to 0.85, p = 0.006). Variables independently associated with increased mortality were increasing age, male sex, COPD, previous balloon valvuloplasty, and higher STS-PROM. In conclusion, overweight patients have lower long-term mortality when compared with normal weight and obese patients undergoing TAVI.
Collapse
|
36
|
Dawson LP, Cadden J, Pol D, Wynn G, Grigg L, Kalman J, Stevenson I. Learning Curve and Initial Experience With Implementation of a His-Bundle Pacing Program in an Australian Setting. Heart Lung Circ 2020; 29:1493-1501. [DOI: 10.1016/j.hlc.2020.01.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 01/04/2020] [Indexed: 11/28/2022]
|
37
|
Dawson LP, Pol D, Kranz S, Sivaratnam D. Pericardial constriction in double-hit lymphoma. J Nucl Cardiol 2020; 27:1398-1401. [PMID: 30972717 DOI: 10.1007/s12350-019-01711-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 03/27/2019] [Indexed: 10/27/2022]
Affiliation(s)
- Luke P Dawson
- Department of Cardiology, Royal Melbourne Hospital, Melbourne, VIC, Australia.
| | - Derk Pol
- Department of Cardiology, Royal Melbourne Hospital, Melbourne, VIC, Australia
| | - Sevastjan Kranz
- Deparment of Pathology, Royal Melbourne Hospital, Melbourne, VIC, Australia
| | - Dinesh Sivaratnam
- Department of Cardiology, Royal Melbourne Hospital, Melbourne, VIC, Australia
- Department of Nuclear Medicine, Royal Melbourne Hospital, Melbourne, VIC, Australia
| |
Collapse
|
38
|
Dawson LP, Cole JA, Lancefield TF, Ajani AE, Andrianopoulos N, Thrift AG, Clark DJ, Brennan AL, Freeman M, O'Brien J, Sebastian M, Chan W, Shaw JA, Dinh D, Reid CM, Duffy SJ. Incidence and risk factors for stroke following percutaneous coronary intervention. Int J Stroke 2020; 15:909-922. [PMID: 32248767 DOI: 10.1177/1747493020912607] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Stroke rates and risk factors may change as percutaneous coronary intervention practice evolves and no data are available comparing stroke incidence after percutaneous coronary intervention to the general population. AIMS This study aimed to identify the incidence and risk factors for inpatient and subsequent stroke following percutaneous coronary intervention with comparison to age-matched controls. METHODS Data were prospectively collected from 22,618 patients undergoing percutaneous coronary intervention in the Melbourne Interventional Group registry (2005-2015). The cohort was compared to the North-East Melbourne Stroke Incidence Study population-based cohort (1997-1999) and predefined variables assessed for association with inpatient or outpatient stroke. RESULTS Inpatient stroke occurred in 0.33% (65.3% ischemic, 28.0% haemorrhagic, and 6.7% cause unknown), while outpatient stroke occurred in 0.55%. Inpatient and outpatient stroke were associated with higher rates of in-hospital major adverse cardiovascular outcomes (p < 0.0001) and mortality (p < 0.0001), as well as 12-month mortality (p < 0.0001). Factors independently associated with inpatient stroke were renal impairment, ST-elevation myocardial infarction, previous stroke, left ventricular ejection fraction 30-45%, and female sex, while those associated with outpatient stroke were previous stroke, chronic lung disease, previous myocardial infarction, rheumatoid arthritis, female sex, and older age. Compared to the age-standardized population-based cohort, stroke rates in the 12 months following discharge were higher for percutaneous coronary intervention patients <65 years old, but lower for percutaneous coronary intervention patients ≥65 years old. CONCLUSIONS Risk of inpatient stroke following percutaneous coronary intervention appears to be largely associated with clinical status at presentation, while outpatient stroke relates more to age and chronic disease. Compared to the general population, outpatient stroke rates following percutaneous coronary intervention are higher for younger, but not older, patients.
Collapse
Affiliation(s)
- Luke P Dawson
- Department of Cardiovascular Medicine, The Alfred Hospital, Melbourne, Australia.,Department of Cardiology, Royal Melbourne Hospital, Melbourne, Australia
| | - Justin A Cole
- Department of Cardiovascular Medicine, The Alfred Hospital, Melbourne, Australia.,Baker IDI Heart and Diabetes Institute, Melbourne, Australia
| | | | - Andrew E Ajani
- Department of Cardiology, Royal Melbourne Hospital, Melbourne, Australia
| | - Nick Andrianopoulos
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia
| | - Amanda G Thrift
- Stroke and Ageing Research, Department of Medicine, School of Clinical Sciences at Monash Health, Monash University, Melbourne, Australia
| | - David J Clark
- Department of Cardiology, Austin Health, Melbourne, Australia
| | - Angela L Brennan
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia
| | - Melanie Freeman
- Department of Cardiology, Box Hill Hospital, Melbourne, Australia
| | - Jessica O'Brien
- Department of Cardiovascular Medicine, The Alfred Hospital, Melbourne, Australia
| | - Martin Sebastian
- Department of Cardiology, University Hospital Geelong, Geelong, Australia
| | - William Chan
- Department of Cardiovascular Medicine, The Alfred Hospital, Melbourne, Australia.,Baker IDI Heart and Diabetes Institute, Melbourne, Australia
| | - James A Shaw
- Department of Cardiovascular Medicine, The Alfred Hospital, Melbourne, Australia
| | - Diem Dinh
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia
| | - Christopher M Reid
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia.,School of Public Health, Curtin University, Perth, Australia
| | - Stephen J Duffy
- Department of Cardiovascular Medicine, The Alfred Hospital, Melbourne, Australia.,Baker IDI Heart and Diabetes Institute, Melbourne, Australia.,Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia
| | | |
Collapse
|
39
|
Dawson LP, Dinh D, Duffy S, Brennan A, Clark D, Reid CM, Blusztein D, Stub D, Andrianopoulos N, Freeman M, Oqueli E, Ajani AE. Short- and long-term outcomes of out-of-hospital cardiac arrest following ST-elevation myocardial infarction managed with percutaneous coronary intervention. Resuscitation 2020; 150:121-129. [PMID: 32209377 DOI: 10.1016/j.resuscitation.2020.03.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 02/11/2020] [Accepted: 03/07/2020] [Indexed: 10/24/2022]
Abstract
AIM Out-of-hospital cardiac arrest (OHCA) is frequently associated with ST-elevation myocardial infarction (STEMI) and has a high mortality. We aimed to identify differences in characteristics and very long-term outcomes for STEMI patients with and without OHCA managed with percutaneous coronary intervention (PCI). METHODS We analysed data from 12,637 PCI patient procedures for STEMI in the multi-centre Melbourne Interventional Group registry between January 2005 and December 2018. Multivariable models examined associations with OHCA presentation and 30-day mortality. Long-term outcomes were assessed through linkage with the Australian National Death Index. RESULTS Compared with patients without OHCA (N = 11,580), patients with OHCA (N = 1057) were younger, more often male, had less cardiovascular risk factors, and more often presented with cardiogenic shock. OHCA preceded an increasing proportion of STEMI PCI cases from 2005 to 2018 (2.4% vs. 9.2%). Factors independently associated with OHCA presentation were younger age, male gender, prior valve surgery, multi-vessel disease, LAD culprit, small vessel diameter, and renal impairment on presentation. Patients with OHCA had lower procedural success, higher rates of bleeding and stroke, larger infarct size (measured by peak CK), and higher 30-day mortality (37% vs. 5%; all p < 0.05). Cardiogenic shock, renal impairment and lower ejection fraction were independently associated with 30-day mortality. Long-term mortality was 44% vs. 20% (median follow-up 4.6 years), with Cox regression analysis demonstrating no difference in survival if patients survived beyond 30 days (HR 1.18, 95% CI 0.95-1.47). CONCLUSIONS OHCA has a high short-term mortality and precedes an increasing proportion of STEMI PCI cases. Thirty-day survivors have an excellent long-term prognosis.
Collapse
Affiliation(s)
- Luke P Dawson
- Department of Cardiology, Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | - Diem Dinh
- Centre of Cardiovascular Research and Education in Therapeutics, Monash University, Melbourne, Victoria, Australia
| | - Stephen Duffy
- Centre of Cardiovascular Research and Education in Therapeutics, Monash University, Melbourne, Victoria, Australia; Department of Cardiovascular Medicine, The Alfred Hospital, Melbourne, Victoria, Australia; Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Angela Brennan
- Centre of Cardiovascular Research and Education in Therapeutics, Monash University, Melbourne, Victoria, Australia
| | - David Clark
- Department of Cardiology, Austin Health, Melbourne, Victoria, Australia
| | - Christopher M Reid
- Centre of Cardiovascular Research and Education in Therapeutics, Monash University, Melbourne, Victoria, Australia
| | - David Blusztein
- Department of Cardiology, Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | - Dion Stub
- Centre of Cardiovascular Research and Education in Therapeutics, Monash University, Melbourne, Victoria, Australia; Department of Cardiovascular Medicine, The Alfred Hospital, Melbourne, Victoria, Australia; Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Nick Andrianopoulos
- Centre of Cardiovascular Research and Education in Therapeutics, Monash University, Melbourne, Victoria, Australia
| | - Melanie Freeman
- Department of Cardiology, Box Hill Hospital, Melbourne, Victoria, Australia
| | - Ernesto Oqueli
- Department of Cardiology, Ballarat Health Services, Ballarat, Victoria, Australia; School of Medicine, Deakin University, Victoria, Australia
| | - Andrew E Ajani
- Department of Cardiology, Royal Melbourne Hospital, Melbourne, Victoria, Australia; Centre of Cardiovascular Research and Education in Therapeutics, Monash University, Melbourne, Victoria, Australia.
| | | |
Collapse
|
40
|
Dawson LP, Dinh D, Montalto S, Duffy SJ, Dick R, Gutman J, Brennan A, Carruthers H, Doyle J, Stub D, Whitbourn R, Cox N, Cooke J, Gooley R, Hiew C, Reid C, Lefkovits J. Medium-Term Bioresorbable Scaffold Outcomes Utilising Data From an Australian Clinical Quality Registry. Heart Lung Circ 2019; 29:1440-1448. [PMID: 31843365 DOI: 10.1016/j.hlc.2019.11.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 09/04/2019] [Accepted: 11/21/2019] [Indexed: 10/25/2022]
Abstract
BACKGROUND Bioresorbable scaffolds (BRS) are a novel technology in coronary intervention. However, recent trials demonstrate higher rates of device failure compared to contemporary drug-eluting stents. This study sought to utilise a clinical quality registry to assess the medium-term safety of the Abbott Absorb BRS (Abbott Vascular, Santa Clara, CA, USA), in an Australian context. METHODS A prospective, observational study of 192 BRS percutaneous coronary interventions (PCI) compared to 31,773 non-BRS PCIs entered in the Victorian Cardiac Outcomes Registry from 2013 to 2017. The main outcome measure was patient-oriented composite endpoint (POCE) events comprising all-cause mortality, any myocardial infarction (MI), and any revascularisation. RESULTS Bioresorbable scaffolds patients (mean age 61.6±10.5 years, 79% male) were younger, had less comorbidity, less prior PCI, fewer ST elevation myocardial infarction (STEMI) presentations, lower rates of multi-lesion disease and more adjuvant devices compared to non-BRS PCI (all p<0.01). All-cause mortality was 2.1%, myocardial infarction (MI) 2.1%, scaffold thrombosis 3.1% and any revascularisation 14.1% (mean follow-up 27.4±8.9 months). POCE events occurred in 11.5% at 1 year and 16.9% at 2 years, comparable to pooled-trial data. Multivariate predictors of POCE were >1 scaffold used (odds ratio [OR] 4.6, 95% confidence interval [CI] 1.9-11.4, p<0.01) and scaffold diameter ≤2.5 mm (OR 3.3, 95% CI 1.4-7.6, p=0.02). Over 95% guideline adherence was achieved in six of eight patient selection criteria and four of six device deployment criteria. CONCLUSION In an Australian setting, BRS were used in non-complex patients. Most guidelines for use were adhered to and outcomes were comparable to pooled trial data. Clinical quality registries are effective in assessing novel treatments and technologies when potential safety concerns develop.
Collapse
Affiliation(s)
- Luke P Dawson
- Department of Cardiology, Royal Melbourne Hospital, Melbourne, Vic, Australia
| | - Diem Dinh
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic, Australia
| | - Stephanie Montalto
- Department of Cardiology, Royal Melbourne Hospital, Melbourne, Vic, Australia
| | - Stephen J Duffy
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic, Australia; Department of Cardiovascular Medicine, The Alfred Hospital, Melbourne, Vic, Australia
| | - Ronald Dick
- Department of Cardiology, Epworth Hospital, Melbourne, Vic, Australia
| | - Jack Gutman
- Department of Cardiology, St Vincent's Private Hospital, Melbourne, Vic, Australia
| | - Angela Brennan
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic, Australia
| | - Harriet Carruthers
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic, Australia
| | - Janine Doyle
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic, Australia
| | - Dion Stub
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic, Australia; Department of Cardiovascular Medicine, The Alfred Hospital, Melbourne, Vic, Australia
| | - Robert Whitbourn
- Department of Cardiology, St Vincent's Private Hospital, Melbourne, Vic, Australia; Department of Cardiology, St Vincent's Hospital, Melbourne, Vic, Australia
| | - Nicholas Cox
- Department of Cardiology, Western Health, Melbourne, Vic, Australia
| | - Jennifer Cooke
- Department of Cardiology, Eastern Health, Melbourne, Vic, Australia
| | - Robert Gooley
- Department of Cardiology, Monash Health, Melbourne, Vic, Australia
| | - Chin Hiew
- Department of Cardiology, University Hospital, Geelong, Vic, Australia
| | - Christopher Reid
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic, Australia
| | - Jeffrey Lefkovits
- Department of Cardiology, Royal Melbourne Hospital, Melbourne, Vic, Australia; Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic, Australia.
| | | |
Collapse
|
41
|
Dawson LP, Dagan M, Koh Y, Duffy SJ, Stub D, Lew P, Shaw JA, Walton A. Factors That Prevent Progression to Transcatheter Aortic Valve Implantation (TAVI). Heart Lung Circ 2019; 28:1225-1234. [DOI: 10.1016/j.hlc.2018.07.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 05/14/2018] [Accepted: 07/13/2018] [Indexed: 11/30/2022]
|
42
|
Dawson LP, Fairley JL, Papandony MC, Hussain SM, Cicuttini FM, Wluka AE. Is abnormal glucose tolerance or diabetes a risk factor for knee, hip, or hand osteoarthritis? A systematic review. Semin Arthritis Rheum 2018; 48:176-189. [DOI: 10.1016/j.semarthrit.2018.02.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 02/04/2018] [Accepted: 02/16/2018] [Indexed: 10/18/2022]
|
43
|
Dawson LP, Warren J, Mundisugih J, Nainani V, Chan W, Stub D, Broughton A, Taylor AJ, Walton A, Duffy SJ, Shaw JA. Trends and Clinical Outcomes in Patients Undergoing Primary Percutaneous Revascularisation for ST-Elevation Myocardial Infarction: A Single Centre Experience. Heart Lung Circ 2017; 27:683-692. [PMID: 28797607 DOI: 10.1016/j.hlc.2017.06.722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 06/05/2017] [Accepted: 06/16/2017] [Indexed: 11/26/2022]
Abstract
BACKGROUND Primary percutaneous coronary intervention (PPCI) is the preferred therapy for patients presenting with ST-elevation myocardial infarction (STEMI). We reviewed patients undergoing PCI for STEMI over a 6-year period to evaluate changes in procedural characteristics and clinical outcomes given recent changes to STEMI guidelines. METHODS All patients presenting to the Alfred Hospital, a tertiary referral hospital, between 1 January 2010 and 31 December 2015 undergoing PCI for STEMI were identified. Detailed review of their procedure reports was performed and 30-day and 12-month clinical outcomes were recorded including major adverse cardiac events (MACE). RESULTS There was a total of 445 patients aged 60.6±12.4 years with 369 (82.9%) male. There was a significant increase in radial access use over the 6-year period 0/49 (0%) in 2010 vs 56/113 (49.6%) in 2015 (p<0.01). There was a significant reduction in the use of IIb/IIIa receptor antagonists during the period 29/49 (59%) in 2010 vs 24/113 (21%) in 2015 (p<0.01) and use of aspiration thrombectomy 15/49 (31%) in 2010 vs 19/113 (17%) in 2015 (p<0.01). There was no significant reduction in major bleeding over this period with 2/49 (4%) in 2010 vs 5/108 (5%) in 2015 (p=0.32). Thirty-day and 12-month mortality was also unchanged. CONCLUSION Between 2010 and 2015 there has been a significant increase in the use of radial access and a reduction in the use of glycoprotein IIb/IIIa antagonists and aspiration thrombectomy in patients undergoing PPCI. This was not associated with changes in major bleeding or 30-day or 12-month mortality.
Collapse
Affiliation(s)
- Luke P Dawson
- Department of Cardiology, The Alfred Hospital, Melbourne, Vic, Australia
| | - Josephine Warren
- Department of Cardiology, The Alfred Hospital, Melbourne, Vic, Australia
| | - Juan Mundisugih
- Department of Cardiology, The Alfred Hospital, Melbourne, Vic, Australia
| | | | - William Chan
- Department of Cardiology, The Alfred Hospital, Melbourne, Vic, Australia; Baker IDI Heart and Diabetes Institute, Melbourne, Vic, Australia
| | - Dion Stub
- Department of Cardiology, The Alfred Hospital, Melbourne, Vic, Australia; Baker IDI Heart and Diabetes Institute, Melbourne, Vic, Australia
| | - Archer Broughton
- Department of Cardiology, The Alfred Hospital, Melbourne, Vic, Australia
| | - Andrew J Taylor
- Department of Cardiology, The Alfred Hospital, Melbourne, Vic, Australia; Baker IDI Heart and Diabetes Institute, Melbourne, Vic, Australia; Monash University, Melbourne, Vic, Australia
| | - Antony Walton
- Department of Cardiology, The Alfred Hospital, Melbourne, Vic, Australia
| | - Stephen J Duffy
- Department of Cardiology, The Alfred Hospital, Melbourne, Vic, Australia; Baker IDI Heart and Diabetes Institute, Melbourne, Vic, Australia; Monash University, Melbourne, Vic, Australia
| | - James A Shaw
- Department of Cardiology, The Alfred Hospital, Melbourne, Vic, Australia; Baker IDI Heart and Diabetes Institute, Melbourne, Vic, Australia.
| |
Collapse
|
44
|
Dawson LP, Lee SJ, Hollander YS. Valproate-induced hyperammonemic encephalopathy associated with urinary tract infection and urinary retention in the psychiatric setting. Aust N Z J Psychiatry 2016; 50:1110. [PMID: 27056174 DOI: 10.1177/0004867416640906] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Luke P Dawson
- Department of Psychiatry, The Alfred, Melbourne, VIC, Australia
| | - Stuart J Lee
- Department of Psychiatry, The Alfred, Melbourne, VIC, Australia.,Monash Alfred Psychiatry Research Centre, The Alfred and Monash University Central Clinical School, Melbourne, VIC, Australia
| | - Yitzchak S Hollander
- Department of Psychiatry, The Alfred, Melbourne, VIC, Australia .,Department of Psychology, Faculty of Health, Arts and Design, Swinburne University, Melbourne, VIC, Australia
| |
Collapse
|