- Oral presentation
- Open Access
Left ventricular torsional hysteresis in patients with hypertension: a global parameter for diastolic function
© Schiros et al; licensee BioMed Central Ltd. 2013
- Published: 30 January 2013
- Diastolic Function
- Resistant Hypertension
- Mitral Annulus
- Preserve Ejection Fraction
- Ejection Rate
Torsion is an important determinant of left ventricular (LV) systolic and diastolic function. We hypothesized that the area within the torsion volume loop, called the torsional hysteresis (TH), may be an important parameter of diastolic function (DD).
60 resistant hypertension (HTN) patients, 40 healthy controls were studied using cardiac MRI with tissue tagging. Volumetric and torsional parameters were evaluated.
TH as measured by area within torsion volume loops was significantly increased in hypertensive concentric remodeling with associated DD. TH took into account not only active and passive recoil processes of the LV diastolic phase but also the systolic phase and represents a heretofore new assessment of diastolic function.
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