There is a link between atypical heart sounds and atrial fibrillation. People with this condition have an irregular, disorganized heartbeat. Atrial fibrillation is a serious type of arrhythmia, which ...
An S4 heart sound is a low-pitched sound that occurs toward the end of the diastole. In some cases, an underlying health condition, often one affecting the left ventricle, may cause the S4 heart sound ...