CardiologyDr. Biswarup PurkayasthaCoronary Artery Disease

Consultant - Heart & Lung Transplant and Vascular Surgery, Artemis Hospitals, Gurgaon

Part 11 of 12 in Diagnosis & Management of Coronary Artery Disease

Preventing Coronary Artery Disease: Lifestyle, Risk Stratification and Regular Screening

November 30, 2025

Dr. Biswarup Purkayastha's prevention checklist for coronary artery disease is deliberately unambiguous: no smoking, a healthy diet, routine stress management, regular exercise, meditation where useful, and a body mass index maintained between 20 and 25. He was equally direct on alcohol, citing the American Heart Association's position that no amount of alcohol confers a protective benefit for the heart, closing off what he described as a long-running but now-settled controversy over whether moderate drinking, including red wine, helps cardiovascular health.

A practical exercise target

On exercise specifically, Purkayastha's practical target is more than two hours a week, roughly half an hour a day on weekdays. Combined with the rest of the checklist, he told practitioners this level of consistent lifestyle management can prevent coronary artery disease from progressing to the point of needing an intervention, a surgery or a percutaneous procedure, in a large majority of patients.

The general practitioner's role in risk stratification

Purkayastha framed this as an active responsibility for general practitioners managing chronic disease patients, not a passive reminder given once. His instruction: regularly order blood work, maintain a record for every patient (an EMR or equivalent), and use those numbers to stratify each patient into high, moderate or low cardiovascular risk. He was specific that every diabetic patient needs an HbA1c every three months, and that this kind of systematic tracking is what allows a practitioner to know, in advance, which patients warrant closer surveillance and a lower threshold for suspecting a cardiac event when they do present with symptoms.

Optimal nutrition

Asked directly about nutrition during the discussion, Purkayastha described optimal nutrition for coronary risk reduction as a high-protein, high-fiber, low-fat, low-carbohydrate diet. Combined with the full prevention checklist, no smoking, regular exercise beyond two hours a week, routine stress management, and quarterly blood work from age 40 onward, he estimated that patients can prevent their coronary artery disease from reaching a stage that requires surgical or percutaneous intervention roughly 80 percent of the time.

This guide is based on a live Jivo Masterclass — Dr. Biswarup Purkayastha taught doctors across Africa on November 30, 2025.

FROM THE LIVE Q&A

HO

Host (Varun, Jivo Healthcare)

How should a general practitioner judge whether a coronary artery disease case needs a specialist referral, domestically or abroad, versus continued management at the primary care level?

BP

Dr. Biswarup Purkayastha

Complexity is determined by the workup, not by symptoms alone. Watch the troponin and creatine kinase trend: if enzymes keep rising, or symptoms have not improved after 72 to 96 hours of conservative therapy, antiplatelet medication, or thrombolysis where that pathway was used, that is the signal to make a specialist referral so a senior physician can perform an angiogram and determine disease severity directly.

See all 10 questions from this masterclass →

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Frequently Asked Questions

A 38-year-old man has had two years of intermittent chest pain, breathlessness and weakness, with two ECGs, two echocardiograms, a full blood panel and a 24-hour Holter all largely unremarkable, and no local access to CT coronary angiography. What is the next step?

One ECG showing borderline bradycardia, combined with a two-year history that has defeated standard testing, points toward right coronary artery disease, which is notoriously difficult to pick up outside direct angiography. Pending access to a coronary angiogram, start dual antiplatelet therapy, 75 mg of clopidogrel and 150 mg of aspirin daily, plus a statin at 40 mg daily to stabilize the plaque, and check cardiac enzymes at his next chest pain episode. A positive enzyme without an ECG change would classify him as unstable angina, since that diagnosis only requires a troponin derangement alongside chest pain, not an ECG change. A strong maternal family history of cardiac illness is relevant here even though he is young and does not smoke or drink.

What about the RFCL, risk factor weighted clinical likelihood, score? It placed this same patient at 10 percent.

RFCL is an old scoring system we do not use anymore; it produces more false negatives than anything useful. Score this patient with a EuroSCORE now, and a SYNTAX score once an angiogram is available.

Can you say more about coronary artery disease in menopausal women, and about the sympathetic nerve involvement you mentioned in diabetics?

Before 45, women have high estrogen and regular cycles, giving them roughly one-eighth the coronary risk of a man. After menopause, that risk is still about half of a man's, but it rises four-fold from her own prior baseline. The presentation also changes: expect a longer course, days rather than hours, with softer symptoms, a flu-like feeling or mild chest tightness, that get mistaken for a common cold. The best test in this group is a CT coronary angiogram, because women tend to have a lower coronary calcium load, which gives CT angiography a strong positive predictive value for them specifically. Diabetics have a parallel but distinct problem: autonomic nerve involvement blunts the pain signal, so they report less chest pain for the same severity of disease while still showing the nausea, fatigue and cold extremities of an infarction. Physicians need to actively look for the disease in diabetics rather than wait for classic pain.

How do you manage an angina case in a patient who is HIV positive?

The same as anyone else. He gets a coronary angiogram under a universal precautions pathway, and if he has coronary artery disease, it is stentable or operable exactly as it would be otherwise. Any JCI-accredited hospital, ours included, has a protocol to isolate and properly treat these patients. People living with HIV are not discriminated against in access to stenting or bypass surgery.

Is there a direct relationship between pectoralis muscle spasm and coronary artery disease, and if so, what is the first-choice management?

The two are differentiated by troponin: a pectoralis muscle spasm will always return a negative troponin test. There is not really a single first-choice management for a direct link between the two, because they do not co-occur as one diagnosis; one patient might have non-cardiac chest pain from a muscle spasm and separately have coronary disease. Treat each on its own terms: non-steroidal anti-inflammatory drugs for the muscle spasm, and the angiography pathway, deciding between angioplasty and bypass, if there is genuine coronary disease.

How much exercise is recommended to help prevent coronary artery disease?

More than two hours a week, roughly the equivalent of half an hour a day on weekdays, combined with the rest of the prevention checklist.

Does moderate alcohol consumption protect the heart?

No. The American Heart Association's position, cited as settling a long-running controversy, is that no amount of alcohol confers a protective benefit for the heart.

How often should a diabetic patient get an HbA1c test as part of preventive care?

Every three months, as part of routine tracking for every chronic disease patient.

What role should a general practitioner play in preventing coronary artery disease among chronic disease patients?

Order regular blood work, maintain a record for every patient, and use those numbers to stratify each patient into high, moderate or low cardiovascular risk, so surveillance can be adjusted before a cardiac event occurs.

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