Expert London Cardiologist for your Heart Health
Cardiac Diagnostics
Choosing the right test makes all the difference. Dr Nijjer selects and personally interprets every investigation, combining complementary technologies to reach a precise diagnosis.
Cardiac investigations range from a simple ECG lasting seconds to advanced MRI scanning taking over an hour. No single test answers every question — the skill lies in selecting the right combination. Dr Nijjer has a detailed understanding of each technology's strengths, limitations, and how findings from one test inform the interpretation of another. Every test result is reviewed personally and explained in full at your follow-up appointment.
A resting ECG records the heart's electrical activity from twelve different angles, providing an instant snapshot of heart rhythm, rate, and conduction. Painless and performed in minutes, it is often the essential first investigation for any cardiac symptom.
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A continuous heart rhythm recording worn during daily life, from 24 hours to over three years with an implantable device. The ideal investigation when symptoms are intermittent and a standard ECG is likely to be normal at the time of recording.
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A progressive treadmill test that provokes the heart under controlled exercise while monitoring ECG, blood pressure, and symptoms. It assesses functional capacity, reveals exercise-induced ischaemia or arrhythmias, and provides important prognostic information.
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An ultrasound scan of the heart providing real-time moving images of the cardiac chambers, valves, and muscle. It is the cornerstone of structural cardiac assessment — revealing heart failure, valve disease, cardiomyopathy, and pericardial conditions without radiation.
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Ultrasound imaging of the heart performed at rest and under stress — either on a treadmill or with dobutamine medication — to detect areas of the heart muscle that become compromised when demand increases, indicating coronary artery narrowing.
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A non-invasive CT scan that produces detailed three-dimensional images of the coronary arteries using contrast dye. Highly effective at ruling out significant coronary artery disease and has revolutionised the assessment of patients with chest pain at low-to-intermediate risk.
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The gold standard for cardiac structure, function, and tissue characterisation. Stress perfusion CMR detects ischaemia with exceptional accuracy, while late gadolinium enhancement identifies myocardial scar and assesses viability before revascularisation — without any ionising radiation.
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A specialist investigation for patients who experience episodes of fainting (syncope) or near-fainting. The patient is secured to a motorised table that tilts to a near-upright position while heart rate, blood pressure, and symptoms are continuously monitored — identifying abnormal autonomic responses such as vasovagal syncope or POTS.
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Targeted gene panel testing to identify inherited variants associated with hypertrophic and dilated cardiomyopathy, familial hypercholesterolaemia, and hereditary arrhythmia syndromes. Dr Nijjer coordinates testing alongside specialist genetic counselling, cascade family screening, and personalised risk management based on results.
Read more →Dr Nijjer will select the most appropriate investigation based on your symptoms, history, and risk profile. A full consultation includes a clinical assessment and a clear explanation of what each test involves.