Imbibition analysis, a polarised light microscopy technique, was used to examine the molecular organisation of collagen in normal and diseased mitral valve chordae tendineae. A single strut chorda from each of 23 valves (14 from necropsy specimens and nine from valve replacement surgery) was studied. The degree of molecular organisation of collagen in unstained 7 micron sections of the chordae ...

The chordae tendineae of the heart are collagenous strands which extend from the apical margin of papillary muscles of the heart to the various areas on the ventricular surface of the valve leaflets. They convey the contraction of the papillary muscles to the valve and so prevent the latter’s eversion. Eight hearts of the ostrich were collected, opened the left side of the heart and the length ...

The chorda tympani is an important anatomical structure in the tympanic cavity. It may have some anatomic variations. Its anatomic variations are of interest in certain otologic surgical procedures. There are limited reports in the literature about the variations of the chorda tympani. A 49-year-old female patient was refered to our clinic because of conductive hearing loss and tympanic membran...

Valvular heart disease remains a major problem worldwide and is responsible for 20 000 deaths each year in the United States, with an estimated 99 000 inpatient valve procedures performed annually.1 The mitral and tricuspid valve complexes comprise the valve leaflets, valvular annulus, papillary muscles, and chordae tendineae, which anchor the leaflets to the papillary muscles. As papillary mus...

We assessed the accuracy of the intraventricular balloon method of left ventricular volume measurement with all chordae tendineae intact and then severed. The space between the endocardium and the balloon is the source of the volume measurement error. We assessed the volume errors at different intra-balloon pressures between 50 and 250 mmHg, using formalin fixed canine left ventricles. The volu...

To cite: Steger CM. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/bcr-2015211943 DESCRIPTION A 65-year-old man with a medical history of rheumatic fever in childhood reported thoracic pain while at work and collapsed. He died in the ambulance on the way to hospital due to ventricular fibrillation. After the few episodes of rheumatic fever with subsequent pancarditis...

INTRODUCTION False chordae tendineae are fibrous-muscular bundles which do not interconnect with right atrioventricular valves. The structures have occasionally been described in the right ventricle. There are reports suggesting their influence on electromechanical processes taking place in the heart, in thromboembolic events as well as in the course of cardiac invasive procedures. The objectiv...

Twenty patients with mitral insufficiency (MI) due to ruptured chordae tendineae, papillary muscle infarction, or left ventricular enlargement with no organic disease of the mitral valve have been studied during the past 3 years. Nineteen had valve replacement, and one had plastic repair of ruptured chordae tendineae; all have been followed from 6 months to 3 years. Preoperative data were diffe...

A case of traumatic tricuspid insufficiency is presented. In the diagnosis of ruptured chordae tendineae of the tricuspid valve, two-dimensional echocardiography was an essential diagnostic procedure, while M-mode echocardiography showed no specific findings. Ruptured chordae tendineae of the tricuspid valve were confirmed at operation.

AMONG THE LESIONS responsible for insufficiency of the mitral valve is rupture of the chordae tendineae. It is our purpose to describe the significant clinical and pathologic findings in 20 cases of insufficiency of the mitral valve due to rupture of the chordae tendineae. This report is based on those cases in which ruptured mitral chordae tendineae were found at necropsy at the Mayo Clinic du...