Left ventricular long-axis changes in early diastole and systole: impact of systolic function on diastole

2002 ◽  
Vol 102 (5) ◽  
pp. 515-522 ◽  
Author(s):  
Gabriel W. YIP ◽  
Yan ZHANG ◽  
Peggy Y. TAN ◽  
Mei WANG ◽  
Pik-Yuk HO ◽  
...  

Impaired long-axis motion is a sensitive marker of systolic myocardial dysfunction, but no data are available that relate long-axis changes in systole with those in diastole, particularly in subjects with diastolic dysfunction and a ‘normal’ left ventricular (LV) ejection fraction. A total of 311 subjects (including 105 normal healthy volunteers) aged 20-89 years with variable degrees of systolic function (LV ejection fraction range 0.15-0.84) and diastolic function were studied using tissue Doppler echocardiography and M-mode echocardiography to determine mean mitral annular amplitude and peak velocity in systole and early and late diastole. The LV systolic mitral annular amplitude (SLAX, where LAX is long-axis amplitude) and peak velocity (Sm) correlated well with the respective early diastolic components (ELAX and Em) and late diastolic (atrial) components (ALAX and Am). A non-linear equation fitted better than a linear relationship (non-linear model: SLAX against ELAX, r2 = 0.67; Sm against Em, r2 = 0.60; SLAX against ALAX and Sm against Am, r2 = 0.42). After adjusting for age, sex and heart rate, linear relationships of early diastolic (ELAX, r2 = 0.70; Em, r2 = 0.60) and late diastolic (ALAX, r2 = 0.61; Am, r2 = 0.64) long-axis amplitudes and velocities with the respective values for SLAX and Sm were found, even in those subjects with apparently ‘isolated’ diastolic dysfunction. Long-axis changes in systole or diastole did not correlate with Doppler mitral velocities. We conclude that ventricular long-axis changes in early diastole are closely related to systolic function, even in subjects with diastolic dysfunction. ‘Pure’ or isolated diastolic dysfunction is uncommon.

2017 ◽  
Vol 9 (2) ◽  
pp. 147-154
Author(s):  
Rezwana Siddique ◽  
Tuhin Haque ◽  
Md Kabiruzzaman ◽  
Sohel Reza Chowdhury ◽  
Fazila Tun Nesa Malik ◽  
...  

Background: Hypertension is an emerging risk factor for developing heart failure with preserved ejection fraction (HFpEF). Diastolic dysfunction most frequently associated with a subclinical impairment of systolic function in patients with HFpEF. The aim of this study was to detect early impairment of left ventricular function in hypertensive patients with preserved ejection fraction using Tissue Doppler Imaging (TDI).Methods: This cross-sectional study included a total 105 subjects who were divided into three groups (group-1: 35 healthy control; group-2: 35 hypertensive patients without concentric left ventricular hypertrophy, and group-3: 35 hypertensive patients with concentric left ventricular hypertrophy having left ventricular ejection fraction (LVEF)>50% on 2D echocardiography). They underwent TDI to measure systolic dysfunction by systolic annular velocity during systole (S´) and diastolic dysfunction by diastolic filling pressure (E/E´).Results: The results were obtained in 105 subjects: group-1 (40.63±5.0years; 34.4% male); group-2 (49.57±9.7years; 34.4% male) and group-3 (55.17±8.5years; 31.2% male). LVMI and RWT were significantly higher (p<0.001) in both hypertensive groups. The presence of systolic dysfunction by TDI as evidence by systolic annular velocity (S´) was significantly reduced (p<0.001) in both hypertensive groups compared to controls (0.08±0.11 vs.06±0.01 vs. 0.05±0.01).The presence of diastolic dysfunction by TDI as evidence by diastolic filling pressure (E/E´) were significantly higher (p<0.001) in both groups of hypertensive patients. There was significant correlation between E/E´ and S´(r = -593; p= <0.001).Conclusion: TDI provided a new insight into impaired systolic function by detecting lower values of S´ and impaired diastolic function by detecting higher values of E/E´ in hypertensive patients. This study was a clear reflection of early impairment of LV function in hypertensive patients (with or without C-LVH) and it might be helpful for identifying hypertensive patients who are at high risk for heart failure.Cardiovasc. j. 2017; 9(2): 147-154


2021 ◽  
Vol 11 (11) ◽  
pp. 1153
Author(s):  
Alessandra Scatteia ◽  
Angelo Silverio ◽  
Roberto Padalino ◽  
Francesco De Stefano ◽  
Raffaella America ◽  
...  

The left ventricular (LV) ejection fraction (EF) is the preferred parameter applied for the non-invasive evaluation of LV systolic function in clinical practice. It has a well-recognized and extensive role in the clinical management of numerous cardiac conditions. Many imaging modalities are currently available for the non-invasive assessment of LVEF. The aim of this review is to describe their relative advantages and disadvantages, proposing a hierarchical application of the different imaging tests available for LVEF evaluation based on the level of accuracy/reproducibility clinically required.


Blood ◽  
2016 ◽  
Vol 128 (22) ◽  
pp. 8-8
Author(s):  
Omar Niss ◽  
Michael D. Taylor ◽  
Robert Fleck ◽  
Tarek Alsaied ◽  
Jeffrey Towbin ◽  
...  

Abstract Background: We have recently shown that the cardiomyopathy of sickle cell anemia (SCA) is characterized by restrictive physiology (diastolic dysfunction, left atrial [LA] enlargement and normal systolic function) superimposed on hyperdynamic features (left ventricular [LV] enlargement and eccentric hypertrophy) (JACC Cardiovasc Imaging 9:244-253;2016; PNAS 2016 in press). Similar to other restrictive cardiomyopathies, SCA-related cardiomyopathy may lead to mild, secondary pulmonary hypertension (PH) with elevated tricuspid regurgitant jet velocity (TRV), and can be complicated by arrhythmias and sudden death. Diastolic dysfunction is the principal pathology leading to restrictive physiology. Myocardial fibrosis is a common cause of non-SCA restrictive physiology, but the cause of the diastolic dysfunction that underlies SCA-related cardiomyopathy is undetermined. Focal fibrosis, as detected by late gadolinium enhancement (LGE) on cardiac magnetic resonance imaging (CMR), is rare in SCA. However, diffuse myocardial fibrosis, which is not detected by LGE, has not been studied before in SCA. Therefore, we aimed to detect myocardial fibrosis in SCA using a novel CMR T1-mapping technique to quantify the myocardial extracellular volume (ECV) fraction, which correlates with histologic diffuse fibrosis. Methods: We conducted a prospective study of children and adults with SCA (NCT02410811) who underwent CMR, echocardiography, and laboratory testing (including N-terminal pro-brain type natriuretic peptide [NT-proBNP], a marker of ventricular stress). ECV was measured from pre- and post-gadolinium T1 maps using a modified Look-Locker inversion recovery (MOLLI) sequence. Chamber sizes and cardiac performance were evaluated using CMR, while TRV and diastolic parameters were measured by echocardiography. Results: Twenty-five patients with a median age of 19 years (range 6-61 years) were evaluated. ECV was increased in all SCA patients (mean 44 ± 8% vs. 25 ± 3% in normal subjects, P<0.001). One patient had focal fibrosis by LGE and one had systolic dysfunction. Among patients with normal systolic function, 17 patients (71%) had diastolic abnormalities and 7 (29%) had normal diastolic function. Seven out of 17 patients with diastolic abnormalities (29% of the total group) met the definition of diastolic dysfunction, and 10 had inconclusive classification. Patients with diastolic dysfunction had significantly higher ECV (49 ± 7% vs 37 ± 4%, P=0.01; Panel A), NT-proBNP (191 ± 261 vs. 33 ± 33 pg/mL, P=0.04; Panel B), and lower hemoglobin (8.4±0.3 vs.10.9±1.4 g/dL, P=0.004, Panel C) compared to patients with normal diastolic function. Systolic function was similar in both groups (LV ejection fraction 61 ± 4% vs. 62 ± 3.4%, P=0.86). In patients with higher ECV (³40%), LV diastolic abnormalities were more common (99% vs 33%, P=0.003) and LA volume index was significantly increased (57 ± 11 vs. 46 ± 12 mL/m2, P=0.04) compared to patients with ECV <40%. Increased ECV was associated with anemia (R=-0.46, P=0.03; Panel D) and elevated NT-proBNP (R=0.62, P=0.001; Panel E), but not with LV ejection fraction (P=0.66; Panel F), LV mass (P=0.92) or TRV (P=0.65). Conclusions: ECV is markedly elevated in SCA, indicating the presence of significant diffuse myocardial fibrosis in all patients studied. High ECV is associated with more severe anemia, diastolic dysfunction, and high NT-proBNP. Diffuse myocardial fibrosis is a novel process underlying diastolic dysfunction and SCA-related cardiomyopathy, the features of which may be mistaken for pulmonary arterial hypertension. Identifying and therapeutically targeting the root-cause of myocardial fibrosis, or interrupting the development of myocardial fibrosis, should be studied to mitigate cardiopulmonary disease and decrease early mortality in SCA. Figure. Figure. Disclosures Quinn: Silver Lake Research Corporation: Consultancy; Eli Lilly: Research Funding; Amgen: Research Funding.


Circulation ◽  
2007 ◽  
Vol 116 (suppl_16) ◽  
Author(s):  
Kaoru Dohi ◽  
Katsuya Onishi ◽  
Shinya Kato ◽  
Takeshi Takamura ◽  
Naoki Fujimoto ◽  
...  

Background: We tested the hypothesis that speckle-tracking strain imaging can quantify longitudinal right ventricular (RV) function and its association with left ventricular (LV) function in patients with myocardial infarction (MI). Methods: To quantify longitudinal RV function, 39 patients with old MI (OMI: LV ejection fraction 17 – 77 %, 45 ±16 %) and 29 age matched normal controls (Control: LV ejection fraction 65 ± 5 %) were studied with echocardiography. Longitudinal RV global peak systolic strain was assessed from apical four-chamber view using speckle-tracking imaging (EchoPAC, GE Electronic). RV fractional area change was also analyzed. Results: Longitudinal RV global peak systolic strain was significantly impaired in OMI compared to Control (−18 ± 5* and −25 ± 4 %, *p < 0.05 vs. Control) whereas RV fractional area change failed to discriminate from normal to impaired RV function (OMI: 48 ± 11 vs. Control: 52 ± 6 %, p = NS). When divided OMI into three groups regarding to plasma BNP level (Group A: BNP < 100 pg/ml; n = 14, Group B: 100 pg/ml ≤ BNP < 500 pg/ml; n = 14, and Group C; BNP ≥ 500 pg/ml; n = 11), Group A had no significant relations between longitudinal RV global peak systolic strain and LV ejection fraction (y = −0.07x − 11, r = 0.30, p = NS) whereas those were significantly correlated in Group B (y = −0.18x − 11, r = 0.59*, *p < 0.05). Furthermore, the strongest correlation between longitudinal RV global peak systolic strain and LV ejection fraction was observed in Group C (y = −0.58x + 5, r = 0.90*, *p < 0.05). Conclusion: Speckle tracking strain imaging quantified longitudinal RV global systolic function and exhibited its BNP-related dependency to LV systolic function in patents with OMI.


2020 ◽  
Vol 9 ◽  
pp. 204800402092636
Author(s):  
Luca Faconti ◽  
Iain Parsons ◽  
Bushra Farukh ◽  
Ryan McNally ◽  
Lorenzo Nesti ◽  
...  

Objectives Running a marathon has been equivocally associated with acute changes in cardiac performance. First-phase ejection fraction is a novel integrated echocardiographic measure of left ventricular contractility and systo-diastolic coupling which has never been studied in the context of physical activity. The aim of this study was to assess first-phase ejection fraction following recreational marathon running along with standard echocardiographic indices of systolic and diastolic function. Design and participants: Runners (n = 25, 17 males), age (mean ± standard deviation) 39 ± 9 years, were assessed before and immediately after a marathon race which was completed in 4 h, 10 min ± 47 min. Main outcome measures Central hemodynamics were estimated with applanation tonometry; cardiac performance was assessed using standard M-mode two-dimensional Doppler, tissue-doppler imaging and speckle-tracking echocardiography. First-phase ejection fraction was calculated as the percentage change in left ventricular volume from end-diastole to the time of peak aortic blood flow. Results Conventional indices of systolic function and cardiac performance were similar pre- and post-race while aortic systolic blood pressure decreased by 9 ± 8 mmHg ( P < 0.001) and first-phase ejection fraction increased by approximately 48% from 16.3 ± 3.9% to 22.9 ± 2.5% ( P < 0.001). The ratio of left ventricular transmitral Doppler early velocity (E) to tissue-doppler imaging early annular velocity (e′) increased from 5.1 ± 1.8 to 6.2 ± 1.3 ( P < 0.01). Conclusion In recreational marathon runners, there is a marked increase in first-phase ejection fraction after the race despite no other significant change in cardiac performance or conventional measure of systolic function. More detailed physiological studies are required to elucidate the mechanism of this increase.


2018 ◽  
Vol 88 (3) ◽  
Author(s):  
Elio Gorga ◽  
Marta Scodro ◽  
Francesca Valentini ◽  
Renzo D'Ortona ◽  
Mariachiara Arisi ◽  
...  

Psoriasis is a systemic inflammatory disease with a great prevalence in general population. The inappropriate activation of the cellular immune system has been hypothesized to be an independent cardiovascular risk factor, given the higher incidence of cardiovascular disorders in psoriatic patients. Echocardiographic abnormalities have been demonstrated too: the aim of our study was to evaluate the presence of preclinical cardiac dysfunction in a cohort of psoriatic patients without cardiovascular risk factors. We enrolled 52 patients with the diagnosis of chronic plaque psoriasis, compared with a control group not affected by any relevant systemic diseases and inflammatory disorders. In all patients and control group, echocardiographic conventional and tissue Doppler (TDI) studies were conducted. The analysis of echocardiographic parameters revealed normal dimension, mass and systolic function of the left ventricle. Left ventricular diastolic dysfunction was found in 36.5% patients in the psoriasis group versus 0% in control group, and significant reduction of the E/A ratio was found also for the right ventricle. A significant increase of mitral regurgitation has been found in psoriatic patients (p=0.005). The early recognition of cardiovascular pre-clinic disease in psoriatic patients may guide a strict follow up and an early treatment, potentially improving cardiovascular prognosis.


2021 ◽  
Vol 8 (7) ◽  
pp. 911
Author(s):  
Sabapathy K.

Background: The aim of the present study is to detect left ventricular (LV) mass and to find out sub clinical LV diastolic dysfunction in hypertensive patients with preserved LV ejection fraction (EF) using echocardiographic parameters.Methods: 96 patients with hypertension were randomly selected irrespective of their sex, race and risk factor and enrolled into this study. Left ventricular mass index (LVMI) and geometrical pattern LV structure were measured. Sub clinical diastolic dysfunction was also assessed by tissue Doppler.Results: Out of 96 patients, 24 had ECG evidence of LV hypertrophy (LVH) 66 were having increased LVMI (154±20), rest 30 had normal LVMI (108±12). They were divided by LV geometrical pattern into concentric LVH (40), eccentric LVH (26), concentric remodeling (19) and normal (11). Diastolic dysfunction in these patients were assessed by E/E´ measurement which was abnormally increased in 42 out of 66 patients with increased LVMI (20±3.4) and 16 out of 30 patients with normal LVMI.Conclusions: Echocardiographic examination help us to find out LVH precisely by calculating LVMI. It also reveals structural changes like concentric LVH, eccentric LVH, concentric remodeling. A significant number of patients with hypertension with normal LV ejection fraction has sub clinical LV diastolic dysfunction which was detected by tissue Doppler imaging (E/E′). The increase in LVMI with or without concentric LVH is an independent risk factor and prognostic marker for cardio vascular events that occur in hypertensive patients. In this study we infer that patients with increase in LVMI with concentric LVH pattern with normal ejection fraction needs more aggressive treatment and regular follow up to prevent cardiovascular complications.


2000 ◽  
pp. 363-369 ◽  
Author(s):  
G Mercuro ◽  
S Zoncu ◽  
P Colonna ◽  
P Cherchi ◽  
S Mariotti ◽  
...  

OBJECTIVE: To verify whether the accuracy of data on myocardial function provided by pulsed-wave tissue Doppler imaging (PWTDI), a new echocardiographic application that allows quantitative measurements of myocardial wall velocities, could help towards a better understanding of the natural history of acromegalic cardiomyopathy. DESIGN: Eighteen patients with active acromegaly (ten men and eight women; mean age 48.0+/-15.0 years) with no other detectable cause of heart disease underwent PWTDI. Thirteen healthy individuals matched for age and body mass index acted as a control group. METHODS: Ejection fraction (EF), transmitral early/late diastolic velocity (E/A) ratio and isovolumic relaxation time (IVRT) were measured by conventional echocardiography; systolic peak (Sv) and early (Ev) and late (Av) diastolic peak velocities, Ev/Av ratio and regional IVRT (IVRTs) were obtained by PWTDI. RESULTS: All patients showed appreciably abnormal left ventricular global diastolic function represented by prolongation of the IVRT (P<0.001). Using PWTDI we found a prolongation of IVRTs and inversion of the Ev/Av ratio. In addition, the Ev/Av ratio proved to be significantly negatively correlated with IVRT; this correlation was not present in the case of the E/A ratio. Furthermore, a decrease in Sv was detected in the basal segment of the lateral wall (P<0.01), which had the greatest degree of diastolic dysfunction. CONCLUSIONS: PWTDI confirmed the acknowledged diastolic dysfunction that accompanies acromegalic cardiomyopathy and highlighted the greater sensitivity of regional PWTDI with respect to global Doppler diastolic indexes. Furthermore, by revealing an impairment of regional systolic function in presence of a normal EF, the findings with PWTDI contradicted the largely accepted theory that systolic function remains normal for several years in patients affected by acromegalic cardiomyopathy.


2007 ◽  
Vol 51 (2) ◽  
pp. 168-175 ◽  
Author(s):  
Cláudia Maria V. Freire ◽  
Ana Luiza M.T. Moura ◽  
Márcia de Melo Barbosa ◽  
Lucas José de C. Machado ◽  
Anelise Impeliziere Nogueira ◽  
...  

Diabetes mellitus, a disease that has been reaching epidemic proportions, is an important risk factor to the development of cardiovascular complication. Diabetes causes changes within the cardiac structure and function, even in the absence of atherosclerotic disease. The left ventricular diastolic dysfunction (VE) represents the earliest pre-clinical manifestation of diabetic cardiomyopathy, preceding the systolic dysfunction and being able to evolve to symptomatic heart failure. The doppler echocardiography has emerged as an important noninvasive diagnostic tool, providing reliable data in the stages of diastolic function, as well as for systolic function. With the advent of recent echocardiographic techniques, such as tissue Doppler and color M-mode, the accuracy in identifying the moderate diastolic dysfunction, the pseudonormal pattern, has significantly improved. Due to cardiometabolic repercussions of DM, a detailed evaluation of cardiovascular function in diabetic patients is important, and some alterations may be seen even in patients with gestational diabetes.


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