The mammary souffle is a systolic-diastolic murmur that can be heard over
one or both breasts.
It is usually discovered in late pregnancy and during postpartum lactation
It typically disappears at the end of lactation
It can also be present during adolescence
It is best heard directly over the breast
Pressure with a finger or stethoscope in the area where the souffle
is best heard may make it disappear
The origin is probably arterial, which explains the fact that
the systolic component begins after a slight delay following
the first heart sound
It is high pitched
Auscultation suggests that it is superficial
The character may vary from day to day
Tabatznik B, Randall TW, Hersch C.
The mammary souffle of pregnancy and lactation.
Circulation 22:1069, 1960
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