Cardiac papillary fibroelastoma is a rare benign cardiac tumor that represents less than 10% of all cardiac tumors. Most papillary fibroelastomas are relatively small. Symptoms, if present, are due to flow obstruction or peripheral embolization. The most common sites of origin are aortic and mitral valve surfaces. We present successful surgical resection of a papillary fibroelastoma through the...

Ischemic mitral regurgitation is mitral insufficiency caused by myocardial infarction. Recent studies suggest that mitral leaflets have the potential to grow and reduce the degree of regurgitation. Leaflet growth has been associated with papillary muscle displacement, but role of annular dilation in leaflet growth is unclear. We tested the hypothesis that chronic leaflet stretch, induced by pap...

Described in three infants is an anomaly of the mitral valvular mechanism which has the following characteristic: connection of the left ventricular papillary muscles to the anterior mitral leaflet, either directly or through the interposition of unusually short chordae. The condition has been named "anomalous mitral arcade." The anatomic aberration appears to cause incompetence of the mitral v...

Described in three infants is an anomaly of the mitral valvular mechanism which has the following characteristic: connection of the left ventricular papillary muscles to the anterior mitral leaflet, either directly or through the interposition of unusually short chordae. The condition has been named "anomalous mitral arcade." The anatomic aberration appears to cause incompetence of the mitral v...

From strain gauge arches applied directly to the longitudinal surface of the papillary muscle of the canine left ventricle, its force of contraction was recorded simultaneously with that on an epicardial segment of the ventricle immediately overlying it. Left ventricular and atrial pressures, as well as ECG and local electrograms were also recorded in a closed-heart, open-chest preparation. Act...

During the dissection of a cadaver an anomalous infrahyoid muscle was discovered. This was unlike those variations of the infrahyoid muscles described previously.`~The anomalous muscle is classified as a cleidohyoid muscle because it arose from the clavicle and inserted on the hyoid bone. The previous reports2"'5 of anomalous cleidohyoid-type muscles are general descriptions which lack diagrams...

OBJECTIVES It remains unclear why some patients with cardiomyopathy secondary to anterior infarction do, and others do not develop functional mitral regurgitation (MR). METHODS Thirty-six patients after anterior infarction with ejection fraction (EF) below 35%, 18 with no/trivial and 18 with moderate/severe MR, underwent cardiac magnetic resonance imaging. Parameters describing the geometry o...

Background The frequency and prognostic significance of papillary muscle infarction (PapMI) have not been investigated in a large multicenter study of patients with acute reperfused ST-elevation myocardial infarction (STEMI) because papillary muscle necrosis is difficult to visualize premortem. Noninvasive investigation by late gadoliniumenhanced magnetic resonance imaging (LGE-MRI) enables the...