Left intraventricular diastolic and systolic pressure gradients
نویسندگان
چکیده
منابع مشابه
Relationship between early diastolic intraventricular pressure gradients, an index of elastic recoil, and improvements in systolic and diastolic function.
BACKGROUND Early diastolic intraventricular pressure gradients (IVPGs) have been proposed to relate to left ventricular (LV) elastic recoil and early ventricular "suction." Animal studies have demonstrated relationships between IVPGs and systolic and diastolic indices during acute ischemia. However, data on the effects of improvements in LV function in humans and the relationship to IVPGs are l...
متن کاملRight and left ventricular diastolic flow field: why are measured intraventricular pressure gradients small?
Right and left ventricular (RV/LV) diastolic filling involves rapidly changing flow in a chamber with geometry undergoing temporal changes in size and shape; the right ventricle is the most challenging to model analytically, looking triangular when viewed from the front, and having irregular crescent-shaped transverse cross-sections. Accordingly, diastolic fluid dynamics in health and disease a...
متن کاملDoppler-derived ejection intraventricular pressure gradients provide a reliable assessment of left ventricular systolic chamber function.
BACKGROUND Ejection intraventricular pressure gradients are caused by the systolic force developed by the left ventricle (LV). By postprocessing color Doppler M-mode (CDMM) images, we can measure noninvasively the ejection intraventricular pressure difference (EIVPD) between the LV apex and the outflow tract. This study was designed to assess the value of Doppler-derived EIVPDs as noninvasive i...
متن کاملRelationship among diastolic intraventricular pressure gradients, relaxation, and preload: impact of age and fitness.
Diastolic intraventricular pressure gradients (IVPGs) are a measure of the ability of the ventricle to facilitate its filling using diastolic suction. We assessed 15 healthy young but sedentary subjects, aged <50 yr (young subjects; age, 35 +/- 9 yr); 13 healthy but sedentary seniors, aged >65 yr with known reductions in ventricular compliance (elderly sedentary subjects; age, 70 +/- 4 yr); and...
متن کاملChange of left atrial systolic pressure waveform in relation to left ventricular end-diastolic pressure.
The relation between the left atrial systolic pressure waveform and left ventricular end-diastolic pressure was observed in 17 patients who underwent diagnostic cardiac catheterization. Left atrial pressure and left ventricular pressure were simultaneously recorded from a multisensor catheter before and during angiotensin infusion. Left ventricular systolic pressure and left ventricular end-dia...
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ژورنال
عنوان ژورنال: Experimental Biology and Medicine
سال: 2011
ISSN: 1535-3702,1535-3699
DOI: 10.1258/ebm.2011.011134