17th January 2024

A 25-year-old female presents with shortness of breath on exertion, pre-syncope and fatigue.

A 25-year-old female presents with shortness of breath on exertion, pre-syncope and fatigue. She is investigated extensively and found to have a raised pulmonary artery pressure on right heart catheterisation. Her HRCT/CTPA is normal. She has a past medical history of hypothyroidism and a history of mild asthma. She denies any regular medications but, on questioning, admits to taking fenfluramine, which she purchased online as a weight loss aid. 

Which type of pulmonary hypertension is this patient most likely to have?

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