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Cardiovascular diseases

Cardiac tamponade in undiagnosed systemic lupus erythematosus

A 22-year-old woman presented with a 3-day history of fever, retrosternal chest pain and exertional dyspnoea. Her heart rate was 130 bpm with a blood pressure level of 109/68 mmHg. Physical examination suggested tamponade: distended jugular veins, pulsus paradoxus and muffled heart tones. The chest radiography was notable for the characteristic water-bottle sign (Figure, A).1 Contrast-enhanced chest computed tomography demonstrated a massive pericardial effusion (Figure, B) associated with venous engorgement of the superior and inferior vena cava (SVC, IVC), prevascular space (arrows), and bilateral axillary veins (arrowheads). An emergency thoracoscopic pericardial window was performed and 620 mL of bloody fluid was drained. The presence of anti-nuclear, anti-double-stranded DNA, anti-Smith antibodies and hypocomplementaemia supported the diagnosis of systemic lupus erythematosus.2 The patient recovered after 1 week of intravenous methylprednisolone pulse therapy. At an 8-month follow-up, there have been no recurrences. Figure A B

Tsung-Han Ho · Yi-Tin Tsai

16 00286

Variation in coronary angiography rates in Australia: correlations with socio-demographic, health service and disease burden indices

A focus on clinical care standards and better health service distribution is needed to reduce variation in angiography rates

Derek P Chew · Andrew I MacIsaac · Jeffrey Lefkovits · Richard W Harper · Luke Slawomirski · David Braddock · Matthew J Horsfall · Heather A Buchan · Chris John Ellis · David B Brieger · Tom G Briffa

15 01410

Pre-hospital thrombolysis in ST-segment elevation myocardial infarction: a regional Australian experience

A pre-hospital diagnostic and treatment strategy is appropriate in regions where timely primary percutaneous coronary intervention is not possible

Arshad A Khan · Trent Williams · Lindsay Savage · Paul Stewart · Asma Ashraf · Allan J Davies · Steven Faddy · John Attia · Christopher Oldmeadow · Rohan Bhagwandeen · Peter J Fletcher · Andrew J Boyle

15 01336
Cardiovascular diseases Short reports 1 August 2016 Free

The uptake of coronary fractional flow reserve in Australia in the past decade

The use of coronary pressure wires (or fractional flow reserve [FFR]) has been shown to reduce the frequency of major adverse cardiac events and of unnecessary stent procedures, and to lower treatment costs in both the public and private sectors in Australia.1-3 FFR is a tool for assessing physiological ischaemia in coronary artery stenosis, measuring pre- and post-stenosis pressures during adenosine-induced hyperaemia. Because it is evidence-based and quantifiable, it may be discussed during the upcoming Medicare reform. Data on its uptake across Australia, however, have not been published. We examined trends in FFR use after its addition to the Medicare Benefits Schedule 10 years ago. We analysed Australian Government Department of Human Services data on Medicare items for coronary flow reserve, coronary angiography and percutaneous coronary angiography. A total of 14 160 FFR services were processed by Medicare during the past 10 years. FFR use grew during this period, with a mean annual increase of 55%, from 131 services in 2007 to 3869 in 2015 (non-parametric analysis, P = 0.004). Time series analysis identified a Gompertz non-linear trend of FFR against time, indicating that national FFR use is continuing to increase, although growth began to slow in 2014. Further, FFR use increased on a population basis by an average of 45% each year, from 1 per 100 000 in 2007 to 16 per 100 000 in 2015, when these figures were highest in New South Wales (23 per 100 000) and Queensland (19 per 100 000) (Box). The national rate of FFR per coronary angiogram increased from 0.02% in 2006 to 4.8% in 2015 (P = 0.004), when the highest rate was in NSW (5.8%). The rate of FFR per percutaneous coronary intervention (PCI) increased from 0.1% in 2006 to 19.2% in 2015 (P = 0.004), when the highest rate was in Queensland (26.6%). In 2015, there were 5.2 PCIs per FFR used; the rate was not related to the population size of the state or territory (Spearman non-parametric correlation, ρS = 0.07; P = 0.87) or to total PCI use (ρS = 0.12, P = 0.78). There was marked variation between states and territories (Box), highlighting heterogeneity across Australia in the use of FFR. The data summarised in the Box allow operators and hospitals to compare their use of FFR with state and national averages, and they facilitate more standardised care across Australia. Barriers to the uptake of FFR include operator and centre experience, availability and cost. It has been suggested that FFR is discouraged by the lower remuneration received if stenting is not performed.4 From a national perspective, however, there is a mean saving of $1200 per patient in the public sector and $5000 per patient in the private sector when FFR makes stenting unnecessary,2 representing a total annual saving of $4 million.4 The use of FFR across Australia is heterogeneous, but it has grown over the past decade, both in absolute numbers and as proportions of coronary angiograms and PCI. Box – Summary of Medicare items for use of a coronary pressure wire (fractional flow reserve [FFR]) processed during 2015 Australia NSW Vic Qld SA WA Tas ACT NT Total FFR services 3869 1764 688 944 146 225 77 11 14 FFR per 100 000 population 16 23 11 19 8 9 15 3 6 FFR per angiogram 1/21 (4.8%) 1/17 (5.8%) 1/28 (3.6%) 1/17 (5.7%) 1/30 (3.4%) 1/29 (3.5%) 1/21 (4.8%) 1/83 (1.2%) 1/38 (2.7%) FFR per percutaneous coronary intervention 1/5.2 (19.2%) 1/4.6 (21.6%) 1/7.0 (14.3%) 1/3.8 (26.6%) 1/6.8 (14.7%) 1/7.7 (13.0%) 1/6.2 (16.2%) 1/34.1 (2.9%) 1/4.3 (23.3%) Source: Australian Government Department of Human Services. Medicare Australia Statistics, medical item reports (http://medicarestatistics.humanservices.gov.au/statistics/mbs_item.jsp) for coronary flow reserve (item number, 38241), coronary angiogram (38215, 38218, 38220, 38222, 38225, 38228, 38231, 38234, 38237, 38240, 38246) and percutaneous coronary angiogram (38243, 38246).

Austin N May · Anthony Kull · Brendan Gunalingam · J Lynn Francis · George T Lau

15 01225

National Heart Foundation of Australia and Cardiac Society of Australia and New Zealand: Australian clinical guidelines for the management of acute coronary syndromes 2016

An updated guideline providing a synthesis of current evidence-based guidance for health professionals caring for patients with ACS

Derek P Chew · Ian A Scott · Louise Cullen · John K French · Tom G Briffa · Philip A Tideman · Stephen Woodruffe · Alistair Kerr · Maree Branagan · Philip EG Aylward

16 00368

Guideline for the diagnosis and management of hypertension in adults — 2016

Updated recommendations from the National Heart Foundation take into account the findings of recent meta-analyses, systematic reviews and randomised controlled trials

Genevieve M Gabb · Arduino A Mangoni · Craig S Anderson · Diane Cowley · John S Dowden · Jonathan Golledge · Graeme J Hankey · Faline S Howes · Les Leckie · Vlado Perkovic · Markus Schlaich · Nicholas A Zwar · Tanya L Medley · Leonard Arnolda

16 00526

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