AIMS Several methods are used to induce latent left ventricular outflow tract (LVOT) gradients in patients with hypertrophic cardiomyopathy (HCM). We compared LVOT gradients induced by Valsalva manoeuvre (VM) and exercise echocardiography (EE) in patients with HCM treated with percutaneous transluminal septal myocardial ablation (PTSMA). METHODS AND RESULTS Left ventricular outflow tract grad...

We present a patient with cardiac involvement by a metastatic high-grade pleomorphic sarcoma. The tumor metastasized to the endocardium of the left ventricle as well as the lungs, adrenal glands, and thoracolumbar spine. The sarcoma obstructed the left ventricular outflow tract. Approximately 5 months after diagnosis, despite chemotherapy, our patient died suddenly. The exact cause of death is ...

Accessory mitral valve is a rare congenital abnormality and an unusual cause of subvalvular obstruction of the left ventricular outflow tract. Accessory mitral valves are usually detected in children due to symptomatic obstruction; isolated nonobstructive accessory mitral valve is rarely seen in adults. We describe the echocardiographic diagnosis of accessory mitral valve as an isolated congeni...

The effect of nifedipine on the ejection flow pattern in the left ventricular outflow tract was observed using pulsed Doppler echocardiography in 6 patients with hypertrophic cardiomyopathy. After sublingual administration of nifedipine (10 mg) to 1 patient, the turbulent ejection flow pattern became more marked and increased in duration compared with the initial state. An increase in turbulenc...

[1] The Multifluid‐Lyon‐Fedder‐Mobarry (MFLFM) global simulation model incorporating an ionospheric cusp O outflow model based on an empirical relation between downward DC Poynting flux and O outflow flux regulated by the precipitating electron number flux (Fen) is used to simulate the 31 August 2005 storm. A baseline run incorporating the original solar wind data is contrasted against a case w...

We show that outflow rates in jets directly depend on the spectral states of black holes. In particular, in soft states, when the Comptonized electrons are cold, outflow rate is close to zero. In hard states, outflow could be steady, but the rate may be very small – only a few percent of the inflow. In the intermediate states, on the other hand, the outflow rate is the highest – roughly thirty ...

We present a numerical model of an accretion disc with mean-field dynamo action that develops a fast pressure-driven outflow within a cone near the rotation axis and a slower centrifugally driven outflow in the outer parts of the disc. The fast outflow in the cone is confined by the azimuthal field which is produced by the dynamo in the disc and advected to the disc corona. The fast outflow has...

We report on multi-epoch HST/WFPC2 images of the XZ Tauri binary, and its outflow, covering the period from 1995 to 2001. Data from 1995 to 1998 have already been published in the literature. Additional images, from 1999, 2000 and 2001 are presented here. These reveal not only further dynamical and morphological evolution of the XZ Tauri outflow but also that the suspected outflow source, XZ Ta...

PURPOSE To determine the relative contributions to aqueous outflow resistance of the tissues distal to the inner wall of Schlemm's canal. METHODS While performing constant pressure perfusion at 10 mm Hg, a 193-nm excimer laser (Questek) was used to precisely remove portions of sclera, unroofing Schlemm's canal while leaving the inner wall intact. The laser beam was masked to produce a beam 2 ...

Aims. We examine an Infrared Dark Cloud at high spatial resolution as a means to study rotation, outflow, and infall at the onset of massive star formation. Methods. The Infrared Dark Cloud (IRDC) 18223-3 was observed at 1.1 mm and 1.3 mm with the Submillimeter Array (SMA) and follow-up short spacing information was obtained with the IRAM 30 m telescope. Additional data were taken at 3 mm with ...