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Len’s Story

Len is a 69 year old grandfather who ignored symptoms of breathlessness and fatigue for years, putting them down to stress or other factors. In December 2019, Len had a quintuple bypass after being diagnosed with severe coronary artery disease following a CTCA scan.

Calcium Score or CTCA? Which is the right test for the right patient?

Watch Len’s full story

Heart disease can have many shared symptoms with a number of conditions, such as stress. If you have patients experiencing potential symptoms of heart disease, refer them to a GenesisCare cardiac centre for early investigation.

Coronary Artery Disease and Cardiac CT

Coronary artery disease (CAD) is the leading cause of death in Australia, claiming the lives of 48 people every day.¹ Cardiac CT scans can identify the presence of CAD at an early stage. The presence of any calcium in the arteries implies risk, and this knowledge can allow early intervention and lifestyle modifications for patients to reduce their risk of major cardiac events.²

There is increasing evidence that shows improved patient outcomes with computed tomography coronary angiography (CTCA) scans. These include:

  • lower risk of death from cardiac events³,
  • greater diagnostic certainty; and
  • more appropriate use of invasive angiography.⁴

CTCA is a non-invasive test with a negative predictive value of nearly 100% for the exclusion of CAD.⁵ As such, even those patients who have had tests in the past such as normal stress testing or returned zero calcium scores, but have since developed symptoms such as chest pain, should be considered for a CTCA to rule out CAD.⁴

In recent studies, coronary artery scoring has been shown to outperform risk factor scores and has shown to be superior to traditional risk factors for predicting cardiac events.⁶,⁷ Accordingly, coronary calcium scores have emerged as an attractive tool to improve risk stratification and risk reclassification in asymptomatic patients.⁸

If you have asymptomatic patients with known risk factors or who are 45 and over (35 for aboriginal and Torres Strait Islanders), consider sending them for a calcium score in addition to a traditional risk assessment.

Calcium Score or CTCA? Which is the right test for the right patient?

Resources

Cardiac CT Locations

Milton

Queensland

GenesisCare at Milton provides a comprehensive cardiology service including consultation, testing and procedures across all cardiac sub-specialties.

Doncaster

Victoria

Our Doncaster East clinic provides comprehensive cardiology services across all cardiac subspecialties including consultation, electrophysiology, intervention, non-invasive cardiac imaging and heart failure management.

Murdoch

Western Australia

GenesisCare in Murdoch provides a unique offering of comprehensive cardiology, sleep and respiratory services.

St Andrew's Hospital

South Australia

St Andrew’s Hospital is recognised nationally as a centre of excellence. For over 80 years, GenesisCare Cardiology has provided cardiac care in South Australia.

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References

  1. Heart Foundation, Key Statistics: Heart Disease in Australia 2020, viewed 10 November 2020, < https://www.heartfoundation.org.au/About-us/Australia-Heart-Disease-Statistics>  2. Aroney, C., 2019. Heart, Lung and Circulation, 28(2), pp.207-212. 3. SCOT-Heart Investigators, 2018. NEJM, 379(10), pp.924-933. 4. Mittal, T.K., et al. 2017. European Heart Journal-Cardiovascular Imaging, 18(8), pp.922-929. 5. Litt, H.I., et al. 2012. NEJM. 2012;366(15): 1393-1403. 6. Mitchell, J.D., et al. 2018. JACC: Cardiovascular Imaging, 11(12), pp.1799-1806. 7. Venkataraman, P., et al. 2020. Medical Journal of Australia, 213(4), pp.170-177. 8. Chua, A., et al. 2020. Australian Journal of General Practice, 49(8), p.464.