EasyCardiovascularSinus tachycardia due to anxietyuk-plab-1
A 30 year old woman presents with a long history of intermittent palpitations associated with anxiety. Baseline ECG, echocardiogram and thyroid function are normal. Holter monitoring shows frequent episodes of sinus tachycardia up to 120 beats per minute during anxiety but no arrhythmia. What is the most appropriate diagnosis?