ObjectivesThis research was performed to assess systolic and diastolic left ventricular function in patients with ventricular and AV sequential pacing, placing particular emphasis on the long-term evaluation of left ventricular function in ventricular and AV sequential pacing. We also compared the short-term effects of different modes of pacing on LV function. MethodsWe conducted a prospective ...

This is the fourth and final article in the nuclear cardiology series. After reading and studying this article, the nuclear medicine technologist will be able to: m compare and contrast radio nuclide firstpass and gated equilibrium ventricular function studies including parameters measured, instrumentation, computer methods, and procedural details, and (2) discuss basic normal and abnormal resu...

We assessed the effects of age related changes in chamber size, wall thickness, and heart rate of left ventricular function in 78 normal children, aged 1 1/2 to 12 1/2 years, using computer analysis of their left ventricular echocardiograms. Left ventricular cavity size and wall thickness increased linearly with age. Left ventricular fractional shortening, percentage of wall thickening, and the...

The effects of a large arteriovenous fistula on left and right ventricular hemodynamics and cardiac myocyte size were examined in adult rats at 1 week and 1 month after surgery. Cardiac output, left ventricular function, and right ventricular function were evaluated before obtaining isolated myocytes for cell size measurements. Average heart weight increased 35% at 1 week and 86% at 1 month in ...

breed-wise standard echocardiographic values in dogs have been reported as there is variation in body and chest conformation which limits the application of data of one breed for other breed. labrador retrievers being originated from hunting dogs, might have different echocardiographic values from standard normal range of other dog breeds. so, the present study was aimed to determine the m-mode...

introduction: although left ventricular(lv) function parameters measured by gated myocardial perfusion spect (gspect) have been validated, experimental data have revealed that the calculated the lv function parameters using gspect are affected by patient populations as well as particular acquisition and processing conditions. we tried to determine the normal values of gspect in an iranian popul...

D iabetes is a risk factor for the development of symptomatic heart failure, particularly in elderly patients with type 2 diabetes (1,2). Heart failure that occurs as the result of impaired myocardial relaxation and compliance has been termed diastolic heart failure (3). Diastolic heart failure develops despite normal left ventricular systolic contractile function and leads to significant morbi...