With newer, non-invasive imaging techniques, the origin of other, so-called ''
adventitial sounds'' or heart clicks has been appreciated. These are short, high-pitched sounds.
* The
mitral valve in cases of
mitral stenosis
Mitral stenosis is a valvular heart disease characterized by the narrowing of the opening of the mitral valve of the heart. It is almost always caused by rheumatic valvular heart disease. Normally, the mitral valve is about 5 cm2 during d ...
may open with an ''opening snap''
on the beginning of
diastole
Diastole ( ) is the relaxed phase of the cardiac cycle when the chambers of the heart are re-filling with blood. The contrasting phase is systole when the heart chambers are contracting. Atrial diastole is the relaxing of the atria, and ventri ...
.
* Patients with
mitral valve prolapse may have a
mid-systolic click along with a murmur, referred to as apical late systolic murmur.
Early systolic clicks may also be present in some patients.
*
Aortic and
pulmonary stenosis
Pulmonic stenosis, is a dynamic or fixed obstruction of flow from the right ventricle of the heart to the pulmonary artery. It is usually first diagnosed in childhood. Signs and symptoms
Cause
Pulmonic stenosis is usually due to isolated valvula ...
may cause an ejection click
immediately after S
1.
References
{{Cardiovascular system symptoms and signs
Symptoms and signs: Cardiac
Audible medical signs