This site is intended for healthcare professionals

Go to /sign-in page

You can view 5 more pages before signing in

Go to /pro/cpd-dashboard page

This page is worth 0.05 CPD credits. CPD dashboard

Go to /account/subscription-details page

This page is worth 0.05 CPD credits. Upgrade to Pro

Exertional dyspnoea

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

Physiological breathlessness on exertion is the sensation of increased work of breathing which the patient usually recognises as being normal for the degree of exertion.

Pathological dyspnoea on exertion is the sensation of breathlessness at a lower level of exertion than is normal for the patient.

During exertion the requirements for an increased cardiac output result in a tachycardia and consequently, a reduction in the ventricular filling time. These changes plus the effects of any mitral valve stenosis or defects in left ventricular filling cause an increase in the left atrial pressure. It the increase in pulmonary venous pressure that triggers the sensation of breathlessness.

Related pages

Create an account to add page annotations

Annotations allow you to add information to this page that would be handy to have on hand during a consultation. E.g. a website or number. This information will always show when you visit this page.