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MediumCardiologySupraventricular Tachycardia (SVT)ukmlamrcp part 1mrcgp aktpane

A 32-year-old woman presents with recurrent episodes of palpitations, described as sudden onset, rapid, regular heartbeats lasting 10-15 minutes, sometimes associated with dizziness. Episodes can be terminated by bearing down (Valsalva manoeuvre). Her ECG in clinic is normal. What is the most likely underlying diagnosis?

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