Most important differential diagnosis
of AR murmur are mitral stenosis and pulmonary regurgitation. Careful clinical
examination of patients pulse, auscultation of cardiac murmur and dynamic
auscultation will help to differentiate between them.
The following charts will give you the
major difference between aortic regurgitation and pulmonary regurgitation.
Aortic
regurgitation
|
Pulmonary
regurgitation
|
|
Pulse
|
Collapsing
pulse
|
Normal
|
Apex
|
Forceful
|
Normal
|
Features
of PAH (Pulmonary artery hypertension)
|
Absent
|
Present
|
Murmur
|
Early
diastolic murmur in 2nd aortic area that is conducted downward
|
EDM
confined to pulmonary area
|
Difference between AR with
austinflint and mitral stenosis murmur
AR
with Austin flint murmur
|
Mitral
stenosis
|
|
Pulse
|
Collapsing
pulse
|
Low
volume pulse
|
Atrial
fibrillation
|
Less
common
|
More
common
|
Apex
|
Forceful
apex with cardiomegaly
|
Tapping
apex – no cardiomegaly
|
PAH
|
Uncommon
|
Common
|
S1
(First head sound)
|
Soft
|
Loud
|
Opening
snap
|
Absent
|
Present
|
