Pulmonary arterial hypertension (PAH)

Pulmonary arterial hypertension (PAH)

Get clarity on PAH, win time for your patients

Pulmonary arterial hypertension (PAH) is a rare, progressive disease characterized by high blood pressure in the arteries of the lungs. Symptoms of PAH include unexplained shortness of breath (dyspnea), chest pain, and fainting episodes.[1]

Patients can go 2 years on average without a diagnosis.[2] If left untreated, PAH can lead to heart failure and, eventually, death.[1]

Continue exploring this website and find out what is PAH, what are the symptoms of PAH and get access to practical tools for screening and referring your patients for a timely diagnosis and treatment.

This website is intended for healthcare professionals. If you are a patient diagnosed with Pulmonary Arterial Hypertension, visit the PH-Human website for resources dedicated for you.

What is PAH

Read more about what is pulmonary arterial hypertension, what are its causes and symptoms.

How to diagnose PAH

Find out about the different strategies that can help you diagnose PAH in a timely manner.

Where to refer

Patients with suspected PAH should be referred to a PH Center for further investigation and treatment.

Treatment options

Current available treatments can slow disease progression and improve patient outcomes.

Our therapies

Read more about Janssen's molecules for managing PAH.


Get access to diagnostic tools and educational aids to help you identify, assess and manage your PAH patients.

... diagnosed with PAH currently live in Belgium.[3]

... it takes on average to diagnose a patient with PAH.[1]

... 5 GP and 2 specialist visits are on average reported before an undiagnosed PAH patient is finally referred to a PH center.[4]

Learn more about which populations are at risk for PAH


Read more about why your patients with congenital heart defects are potentially at risk for PAH.

PAH and SSc

PAH is a severe complication of systemic sclerosis. Read more here.

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Would you like to know more about the screening and management of pulmonary arterial hypertension? Book an appointment with a Janssen product specialist by clicking the button below.

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Look at 3D clinical images

On this page you will find interactive 3D animations of the human anatomy and various syndromes. This allows you to zoom in on the anatomy, tissue structures, disease mechanisms and the course of the disease.

CP-403722 - August 2023