Marathon running – putting science into practice

27th December 2023, A/Prof Chee L Khoo

Endurance athlete

When we think about extreme physical activity (EPA) such as marathon running, apart from the perceived issue of wearing out knee and hip joints (that’s another issue, another day), we think about the cardiovascular risks or benefits that comes with this intense physical activity. We explored the issue of marathon running and cardiovascular risks 9 months ago here.…

CKD in T1D – any advances in management?

27th December 2023, A/Prof Chee L Khoo

CKD

Not surprisingly, if dysglycaemia is the major contributor to microvascular complications in type 2 diabetes (T2D), the same complications must plaque our patients with type 1 diabetes (T1D. However, we haven’t had many major advances in the management for chronic kidney disease (CKD) and cardiovascular disease (CVD) in patients with T1D for decades.…

Renal artery stenosis – how do we confirm the diagnosis?

12th December 2023, NIA Diagnostic Imaging

Renal artery stenosis

One of the standout diagnoses I remember from medical school is renal artery stenosis. In practice, it is usually someone else that makes that diagnosis. It is not that uncommon. We may hear an abdominal bruit in our general vascular screen. We might struggle to get our patient’s BP to target despite the 4th or 5th agent.…

LDL-C – is lower necessarily better?

9th December 2023, A/Prof Chee L Khoo

Atherosclerosis

We know how effective statins are in lowering cholesterol levels. Lowering of cholesterol levels, especially LDL-C, have been shown to incrementally reduce adverse cardiovascular events in patients with atherosclerotic disease. We have data to show that for every 1 mmol/L of LDL-C reduction there is a 23% reduction in cardiovascular events, which means, the lower the better (1).…

Enteric-coated aspirin – are they any better than plain aspirin?

11th October 2023, Dr Chee L Khoo

Antiplatelet therapy

Aspirin is commonly used as an anti-platelet agent for the prevention of acute coronary syndromes and cerebrovascular accidents. Its role in secondary prevention is well established but its role in primary prevention remains very complicated and very debatable. There is no question that aspirin is definitely beneficial in reducing events especially in patients at high risk of cardiovascular events.…

Omega-6 fatty acids – are they still the bad guys?

11th October 2023, Dr Chee L Khoo

Oils ain’t oils

Current U.S. dietary guidelines do recommend higher intake of omega-6 polyunsaturated fatty acids (n-6 PUFA) to reduce the risk of coronary heart disease (1,2). This pro-Omega-6 fatty acid stance remains rather contentious. While there is data supporting cholesterol benefits of linoleic acid (LA), the predominant dietary n-6 PUFA and higher dietary n-6 PUFA (predominantly LA) is associated with lower CHD risk in prospective cohort studies (3), not all cohort studies have confirmed these benefits (4).…

Drug treatment for hypertrophic cardiomyopathy?

28th September, 2023, Dr Chee L Khoo

In June this year, we saw how our understanding of the pathophysiology of hypertrophic cardiomyopathy (HCM) (formerly known as hypertrophic obstructive cardiomyopathy or HOCM) has significantly changed. In particular, we saw how not all patients with HCM have “obstruction” in the left ventricular tract. In other words, the primary defect in HCM is no longer “structural”.…

Heart Failure – are biomarkers useful?

12th July 2023, Dr Chee L Khoo

The WHO define biological markers or biomarkers as “any substance, structure or process that can be measured in the body or its products and influence or predict the incidence of outcome or disease”. In heart failure, many biomarkers have been studied but B-type natriuretic peptide (BNP) and N-terminal pro–B-type natriuretic peptide (NT-proBNP) come close to the characteristics of “ideal” heart failure (HF) biomarkers.…

Finerenone is finally here – do you remember what it is for?

12th July 2023, Dr Chee L Khoo

DKD

It’s almost a year since we foreshadowed the arrival of finerenone and it’s finally on the PBS, albeit with the usual and expected very restricted criteria. We discussed finerenone’s impressive cardiovascular and renal outcomes in patients with heart failure and chronic kidney disease. We further discussed why finerenone is a better mineralo-corticosteroid receptor antagonist (MRA) than what we have at the moment, spironolactone and eplenerone.…

Hypertrophic cardiomyopathy – do the old sporting restrictions still apply?

25th June 2023, Dr Chee L Khoo

Sudden cardiac death

Consensus cardiology recommendations previously supported the ’blanket’ disqualification of athletes with hypertrophic cardiomyopathy (HCM) from competitive sport. Clinically, it is almost impossible to exclude HCM from physical examination. Thus, sudden cardiac death (SCD) is always on our minds when we are asked to sign off on a clearance to participate in sporting activities.…

Anti-platelet therapy with PCI – what do you need to know?

29th April 2023, Dr Chee L Khoo

anti-platelet therapy

We have a increasing number of patients who has undergone a percutaneous coronary intervention (PCI). This could be in the acute setting of an acute coronary syndrome (ACS) or electively during an exploratory angiogram. Stents used to be bare metal. Then came the first-generation drug eluting stents. The latest generation drug eluting stents are better at reducing subsequent thrombosis of the stented and unstented coronary segments.…