Model-based multichannel detection of cardiac conduction abnormalities

Abnormalities of cardiac conduction in diabetics.

Cardiac conduction abnormalities during percutaneous balloon mitral or aortic valvotomy.

To evaluate the electrophysiologic changes in the cardiac conduction system that occur during percutaneous mitral or aortic balloon valvotomy, we prospectively studied the conduction system in 19 patients (10 mitral, 8 aortic, and 1 both) undergoing this procedure. A His bundle electrogram was recorded in all patients, and when sinus rhythm was present, the atrioventricular (AV) node effective ...

Adaptive multiscale model for simulating cardiac conduction.

We present a multiscale model and an adaptive numerical scheme for simulating cardiac action potential propagation along a linear strand of heart muscle cells. This model couples macroscale partial differential equations posed over the tissue to microscale equations posed over discrete cellular geometry. The microscopic equations are used only near action potential wave fronts, and the macrosco...

mortality forecasting based on lee-carter model

over the past decades a number of approaches have been applied for forecasting mortality. in 1992, a new method for long-run forecast of the level and age pattern of mortality was published by lee and carter. this method was welcomed by many authors so it was extended through a wider class of generalized, parametric and nonlinear model. this model represents one of the most influential recent d...

Detection of cardiac abnormalities by mass chest x-ray surveys.

Of the various types of suspected chest pathology found in 70 mm. x-ray films taken during mass surveys cardiac enlargement is quite common. In order to determine if possible the significance and value of such findings a follow-up study was made of cases of cardiac enlargement detected as a result of chest x-ray surveys conducted by our Bureau of Tuberculosis Control from March 1950 to March 19...