Diabetes is, from a cardiologist’s vantage point, primarily a cardiovascular disease that happens to be diagnosed by a glucose test. Most people with type 2 diabetes will ultimately be affected by their arteries rather than their blood sugar, which shapes how it should be treated.
Why this sits in a cardiology clinic
Diabetes accelerates coronary disease, produces more diffuse involvement, and blunts the warning symptoms — silent ischaemia is genuinely more common, so a heart attack may present as breathlessness or fatigue with no chest pain at all.
BARI 2D (2009) is instructive here: in patients with type 2 diabetes and stable coronary disease, prompt revascularisation did not improve survival compared with intensive medical therapy. The leverage lies in the metabolic and vascular management, not in the catheter lab.
Pre-diabetes
Raised glucose that has not yet reached the diagnostic threshold already carries elevated cardiovascular risk, and this is the point at which intervention is most effective. Structured lifestyle change at this stage can prevent or substantially delay progression to diabetes.
Treatment priorities
Glucose control matters, but the drug classes that have demonstrated reductions in cardiovascular events and heart-failure hospitalisation now sit at the centre of management, particularly where heart or kidney disease coexists. Blood pressure control and lipid lowering deliver at least as much benefit as glucose lowering in this population.
Screening for kidney involvement, eye disease and neuropathy runs alongside, because complications develop silently and are far easier to slow than to reverse.
A note on language
Type 2 diabetes can, in some people, be driven into sustained remission through substantial weight loss and metabolic change. That is a meaningful and worthwhile goal. It is not the same as a cure, and it requires continued follow-up — anyone promising otherwise should be treated with caution.
Written and medically reviewed by Dr. Gurbir Singh Gill — Interventional Cardiologist & Diabetologist, Oxford Hospital.
Last reviewed: 1 September 2026