BACKGROUND Left ventricular false tendons (LVFTs) are related to precordial murmurs, ventricular arrhythmias and some repolarization abnormalities. Early repolarization (ER) is a specific type of repolarization abnormality. OBJECTIVE The aim of the present study was to investigate the relationship between LVFTs and ER. METHODS This study retrospectively included 99 consecutive healthy subje...

The left ventricular (LV) pressure-volume (P-V) relationship is a resultant of several determinants, including initial ventricular volume, geometry, and wall stiffness. A quantitative index of one of these determinants, LV wall stiffness, was developed from a mathematical analysis of the isolated P-V relationship. Since this relationship was exponential, stiffness (dP/dV) could be expressed by ...

OBJECTIVE To determine the effects of ventricular pacing on the normal contraction sequence of the helical ventricular myocardial band, and its' impact on left ventricular function. METHODS Ten pigs (25-68 kg) underwent analysis of percent segmental shortening (%SS) by sonomicrometry, with crystals placed along the fiber orientation of the ascending and descending segments, and posterior LV w...

INTRODUCTION Left ventricular geometry is associated with cardiovascular events and prognosis. The Tei index of myocardial performance is a combined index of systolic and diastolic dysfunction and has been shown to be a predictor of cardiovascular outcome in heart diseases. The relationship between the Tei index and left ventricular geometry has not been well studied. This study examined the as...

The changes in left ventricular (LV) structure and geometry that evolve after myocardial injury or overload usually involve chamber dilation and/or hypertrophy. Such architectural remodeling can be classified as eccentric or concentric. Consideration of LV volume, mass, and relative wall thickness (or mass/volume) allows classification of LV remodeling that includes virtually all LV remodeling ...

The occurrence of signs and symptoms of heart failure (HF) with normal left ventricular ejection fraction and predominant anomalies of left ventricular (LV) relaxation and stiffness (i.e. diastolic HF) is increasingly recognized. Notably, in recent years survival rate of systolic HF has improved, whereas the prognosis for diastolic HF remains unchanged. This may be in part attributable to the l...

OBJECTIVE To assess left ventricular (LV) strain and displacement and their relations to LV geometry in patients with aortic stenosis (AS). DESIGN Cross-sectional echocardiographic study in patients with AS. Peak circumferential, radial and longitudinal strain, and radial, longitudinal and transverse displacement were measured by 2D speckle tracking. Severity of AS was assessed from energy lo...

objective: several studies have shown that chichorium intybus l. (c. intybus) which possesses flavonoid compounds has an effective role in treatment of cardiovascular diseases. contractile dysfunction mostly occurs after acute myocardial infarction, cardiac bypass surgery, heart transplantation and coronary angioplasty. the aim of the present study was to investigate the effect of aqueous extra...

Takotsubo cardiomyopathy (TCM), also known as stress-induced cardiomyopathy, is a clinical syndrome of transient left ventricular (LV) apical wall motion abnormality with relative preservation of the basal heart segments in the absence of any significant atherosclerosis. Recurrence of this condition is rare. We report a postmenopausal woman, who experienced two episodes of TCM within 4 months f...

BACKGROUND Regional left ventricular (LV) diastolic wall motion abnormalities detected by color kinesis (CK), an echocardiographic technique, may be a more sensitive measure to postischemic damage following coronary spasm than parameters of global diastolic function. METHODS AND RESULTS Regional LV diastolic wall motion was evaluated by using CK in 18 patients with variant angina on the day f...