A 42-year-old male, software engineer, presents to OPD with:

• Recurrent episodes of palpitations for 6 months

• Associated dizziness and sweating

• Each episode lasts 10–15 minutes

• Relieved spontaneously

• No chest pain

• No past cardiac illness

On examination (between episodes):

1: BP: 130/80 mmHg

2: Pulse: 78/min, regular

3: CVS: Normal

4: CNS: Normal

ECG (baseline): Normal sinus rhythm

Question for Discussion

1: What is the most likely diagnosis?

2: What investigation will confirm it?

3: How will you manage this patient?