Gibson’s murmur
Gibson’s murmur
Gibson’s murmur
[A] Functional heart murmur in Anemia
[B] Murmur in Calcific Aortic Stenosis
[C] Ejection systolic murmur in Tetralogy of Fallot
[D] Machinery murmur of Patent ductus arteriosus
Gibson’s murmur
- Gibson’s murmur – machinery murmur in PDA
What is a continuous murmur?
The continuous murmur is the murmur that begins in systole and continues without interruption, encompassing the second sound, throughout diastole or part of diastole
The murmur that disappears completely before the next first sound, is still considered continuous, if the systolic part of it continues without interruption during the second sound
Why there is a continuous murmur in PDA?
Since aortic pressure is higher than pulmonary pressure throughout cardiac cycle, a continuous murmur occurs.
What are the components of continuous murmur of PDA?
Continuous murmurs of patent ductus arteriosus consists of two components:
- crescendo systolic component
- decrescendo diastolic component
- peak of intensity around second sound
. It is best heard at second left intercostals space or immediately left infraclavicular.
PDA continuous murmur – Eddy sounds may be heard in late systole and early diastole.