9th May 2025

A 27-year-old male attends the outpatient cardiology clinic after a GP referral due to a history of fatigue and dyspnoea on exertion.

A 27-year-old male attends the outpatient cardiology clinic after a GP referral due to a history of fatigue and dyspnoea on exertion. The GP referral letter states that the gentleman has a continuous murmur that is heard loudest at the left upper sternal edge. On examination today in clinic, this is confirmed. His BP is 160/80 mmHg. A strong radial pulse is noted, and HR is regular at 84 bpm. 

He has a past medical history of asthma, for which he is prescribed salbutamol PRN.

Which of the following is most likely to be attributed to his symptoms?

Select the SINGLE most appropriate option from the list below. Select ONE option only.