8th March 2024

A 40-year-old man with recurrent headaches and epistaxis is found to have a murmur on auscultation and referred to Cardiology.

A 40-year-old man with recurrent headaches and epistaxis is found to have a murmur on auscultation and referred to Cardiology. Based on his cardiac catheterisation results shown below, what is the most likely diagnosis?

Site	O2 Saturation (%)	Pressure (mmHg) (End systolic / End diastolic)
Superior Vena Cava	72	–
Inferior Vena Cava	74	–
Right Atrium	74	Mean: 9
Right Ventricle	75	25/9
Pulmonary Artery	75	26/10
Pulmonary Capillary Wedge Pressure	–	Mean: 9
Left Ventricle	98	200/9
Femoral Artery	97	150/95

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

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