‘Know your risk: Dean Jones’ tragic death should serve as a wake-up call’

Sep 29, 2020
Cricket great Dean Jones sadly died of a heart attack last Thursday. Source: Getty.

Australia has been rocked by the death of cricket legend Dean Jones, at the young age of 59. Dean allegedly had just gone for a run and returned to his hotel in Mumbai, India where he was part of the commentary team for the cricket IPL.

When any prominent person dies from any condition, there’s typically huge publicity for the condition and the only silver lining of an event such as this is that it’s a wake-up call for all of us to ensure we have proper preventative assessments.

Of course, I’m not privy to the clinical circumstances of Dean and did not know him personally but like many Australians derived enormous pleasure from watching his extraordinary cricket skills and hearing his astute commentary on television and radio. It’s highly likely that Dean died as a consequence of a plaque rupture in his coronary arteries leading to a heart attack and then subsequently the damage induced precipitating a cardiac arrest. A heart attack is the plaque rupture and subsequent clot blocking the artery (the typical, but not the only cause of heart attack), whereas a cardiac arrest is when the heart stops working leading to sudden collapse and death unless CPR is successful. There are numerous, non-heart attack causes of cardiac arrest.

The superb Australian fast bowler and cricket commentator, Brett Lee, was at the scene when Dean collapsed and administered cardiac massage which unfortunately was unsuccessful which is often the case in this situation. Brett has to be congratulated for having the presence of mind to step in and perform this technique.

I have been saying for many years that all men at 50 and all women at 60, regardless of cardiac risk factors, should be having a full assessment and preventative screen. What we’re generally seeing now in cardiology is a whole set of rather accurate but simple questions and guidelines that allow us to predict people’s future risk.

In 1999, at the Sydney Adventist hospital, Dr David Grout and I introduced coronary calcium scoring into Australia. Over the past 20 years, there have been numerous studies involving thousands of patients to clearly show that coronary calcium scoring is the most accurate predictor for heart disease risk. A coronary calcium score utilises advanced CT scanning technology to take a snapshot of your arteries with no dye and no injections. It’s a simple, low-radiation, low-cost X-ray that measures how much calcium is in the arteries, which is a surrogate marker for the degree of fat build-up.

An important point here is that many doctors are inappropriately ordering an intravenous CT coronary angiogram, using the same technology. This involves an intravenous injection, typically with much higher radiation at a much higher cost. There are no studies in the peer-reviewed literature demonstrating any benefit from IVCT angiography over calcium scoring as a screening test for heart disease in people with no symptoms.

At the European Society of Cardiology meeting in Paris 2019, a study was presented showing clearly that if the coronary calcium score is below 100 in a large population of people over 50, there’s no value in taking statin drugs regardless of cholesterol levels.

We have at the moment this enormous over-prescription of statin drugs to lower cholesterol and people have been given cholesterol-lowering pills unnecessarily when they have nothing in their arteries. A study in America of 5,000 people followed for 10 years showed that 77 per cent of people in the trial fitted the US criteria to be on a statin but half of them had a zero calcium score, and the heart attack rate over 10 years was so low that the conclusion of the trial was that the statin drugs were unnecessary in people with a zero calcium score on the CT scanner. So I’ve been on a campaign for a while now to educate my colleagues, pharmacists, and the public that we shouldn’t be throwing around statin drugs like lolly water just because a person has high cholesterol.

In any case, 50 per cent of people with a chronic illness are not taking their pills after 12 months. So I think it’s really important people are compliant but equally, it also goes back to drugs being overprescribed, but that requires better education of the medical profession and pharmacists about what is appropriate and inappropriate.

Thankfully, we are seeing increasing publicity in raising heart disease awareness and prevention. Of course, the best treatment is not to get heart disease in the first place, and 90 per cent of modern diseases are completely preventable.

I encourage people to practice the five keys to good health to reduce the risk for all diseases by 70 per cent and cardiovascular disease by up to about 83 per cent. It’s three to four times more powerful to practice good lifestyle principles than it is to swallow a pill to lower your cholesterol or control your blood pressure.

  1. Quit all addictions
  2. Seven to eight hours of quality sleep each night is as good for your body as not smoking
  3. Eat less and eat more naturally
  4. Exercise three to five hours per week in some form
  5. Happiness is, no doubt, the best drug on the planet.

It’s health professionals’ absolute responsibility to stress these principles to the public, to put the responsibility for good health back into the individual’s hands rather than the doctor’s.

Let me make the important point that all heart disease is genetic, but your genes load the gun, then your environment pulls the trigger. The first step is always to find out exactly where you are now with a simple, accurate and inexpensive assessment which includes coronary calcium scoring. Speak to your doctor today about organising this test. It may indeed save your life.

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