THE PRESYSTOLIC MURMUR.

Presystolic murmur in atrial fibrillation.

tI he lollowing eschange was aicepted tor publication in October l976. Due to space constraints relating to submission of original airticles its publication had to be delayed. To the Editor: Doctors Tavel and Bonner in their recent editorialt have advanced a detailed and compelling refutation of the concept that a presystolic murmur can occur in mitral stenosis with atrial fihrilla-tion. We wel...

Presystolic murmur of mitral stenosis revisited.

Presystolic mitral regurgitation.

A case of mild to moderate aortic regurgitation with presystolic closure of mitral valve and presystolic mitral regurgitation is reported. This echocardiographic finding is a reliable marker of significantly increased LV end-diastolic pressure.

Non-invasive observations on initial low frequency vibrations of the first heart sound--correlation with the 'presystolic' murmur in mitral stenosis.

The initial low frequency component of the first heart sound, 'M', has been studied in normal subjects, and in patients with vario-s prosthetic mitral valves and with mitral stenosis, using simultaneous low frequency phonocardiography, echocardiography, and apex cardiography. The techniques showed 'M' to have a constant morphology in preisovolumic systole. In mitral stenosis, 'M' and the preiso...

Diastolic murmurs in the presence of Starr-Edwards mitral prosthesis.

Diastolic murmurs associated with the Starr-Edwards mitral prosthesis have not been described previously. In this report, five patients with mitral prostheses are described in whom apical mid-diastolic and presystolic murmurs resulted from two different causes. Three patients had clots obstructing the prosthetic orifice. The other two had normally functioning protheses and moderately severe aor...