We studied the relationship between the degree of mitral protrusion and degree of mitral regurgitation in an experimental model in which the degree of mitral protrusion could be adjusted. The model was developed by dissecting the dorsal papillary muscle through a left atriotomy in 5 dogs and re-attaching the papillary muscle to the original site using a single mattress suture threading through ...

OBJECTIVE To determine the efficacy and safety of percutaneous transvenous mitral commissurotomy (PTMC), using multi-track double balloon technique in juvenile mitral stenosis. DESIGN Open non-randomised intervention. SETTING Cardiac catheterisation laboratories of The Mater Hospital, The Nairobi Hospital and Kenyatta National Hospital from 1996 to 2001. PATIENTS Forty five consecutive pa...

In cases of old myocardial infarction, the presence of mitral valve regurgitation is one of the predicting factors of long-term prognosis. The mechanism of ischemic mitral regurgitation consists of mitral annular dilatation, left ventricular (LV) dilatation followed by tethering of the mitral valve, etc. Since long-term prognosis of the patients in whom the degree of mitral valve regurgitation ...

Concomitant aortic and mitral valve replacement or concomitant aortic valve replacement and mitral repair can be a challenge for the cardiac surgeon: in particular, because of their structure and design, two bioprosthetic heart valves or an aortic valve prosthesis and a rigid mitral ring can interfere at the level of the mitroaortic junction. Therefore, when a mitral bioprosthesis or a rigid mi...

this report presents a case of left radial artery pseudoaneurysm developing at the previous site of invasive monitoring. the patient had prosthetic mitral valve replacement one month earlier, and anti-coagulation therapy had started on the first post-operative day. the patient’s radial artery aneurysm with a 4-centimeter diameter was resected and the radial artery was ligated.

purpose: to determine the prevalence of keratoconus (kcn) in patients with mitral valve prolapse (mvp). methods: this descriptive study was conducted on patients with mvp at shahid rajaei hospital during 2003-2004. corneal topography was performed in 392 subjects with absolute mitral valve prolapse based on perloff’s major criteria. orbscan was carried out in suspected kcn cases. results: patie...

A lthough the incidence of mitral stenosis has declined precipitously in the Western world due to the reduced incidence of rheumatic heart disease, mitral regurgitation remains one of the most common valvular pathologies. Many patients affected by severe mitral valve disease are elderly with multiple comorbidities and are at high risk for traditional open surgical mitral valve repair or replace...

Lack of normal mitral leaflet apposition and abnormal pointing of the flail component into the left atrium (LA) during systole are typical features of mitral leaflet flail which generate haemodynamically relevant mitral regurgitation (MR). The most common reason for mitral leaflet flail is chord rupture. Rarely, severe prolapse with the leaflet tip bulging into the LA causing severe MR can also...

On their long lateral dendrites, mitral cells of the olfactory bulb form dendrodendritic synapses with large populations of granule cell interneurons. The mitral-granule cell microcircuit operating through these reciprocal synapses has been implicated in inducing synchrony between mitral cells. However, the specific mechanisms of mitral cell synchrony operating through this microcircuit are lar...