Left Ventricle Relative Wall Thickness Can Predict Left Ventricle Diastolic Dysfunction

2018 ◽  
Vol 5 ◽  
pp. 13-19
Author(s):  
Hany Alfayed ◽  
Rashid Alhamdan ◽  
Yousef Maalof ◽  
Osama Maadarani ◽  
Abdelaziz Ashkanani ◽  
...  
2020 ◽  
Vol 21 (Supplement_1) ◽  
Author(s):  
A Aldujeli ◽  
J Laukaitiene ◽  
R Unikas

Abstract Background Regular physical exercise causes a continuous gradual increase of the cardiac left ventricular (LV) mass known as physiological adaptive hypertrophy. The extent of LV remodeling depends on the type, amount, and intensity of the exercise. Purpose The aim of this study was to compare structural changes of the heart among Lithuanian football, basketball players and unathletic controls. Methods A total of 50 Lithuanian males aged between 20-29 years volunteered to participate in the study. Football players (n = 15) playing for local II league football clubs,and Basketball players (n = 15) playing for local minor league basketball teams. All athletes had been regularly engaged in their sport for at least three years. Inactive healthy volunteers (n = 20) of similar age served as controls. Routine transthoracic echocardiographic examinations to measure end-diastolic LV dimensions were performed by cardiology fellow under the supervision of a fully licensed cardiologist. Statistical analyses were performed using the SPSS 20.0 software. The value of p < 0,05 was considered as statistically significant. Results No structural or functional pathologies were evident during the echocardiographic examination in any of the subjects. Absolute interventricular septum (IVS) thickness and LV posterior wall thickness, but not LV diameter, were higher in athletes than in inactive controls (P < 0,001). Indexed LV diameter was higher in football players as compared with non-athlete controls and basketball players (P < 0,05). Left ventricular mass of all athletes were higher as compared with controls (p < 0.001). Relative wall thickness was not increased in football players but was higher in basketball players as compared with controls (p < 0.05). Conclusion Cardiac remodeling in Lithuanian football players resulted in left ventricle eccentric hypertrophy due to the LV dilation, increased LV mass and relatively normal relative wall thickness. However in Lithuanian basketball players we noticed an increase in both relative wall thickness and LV mass resulting in LV concentric hypertrophy. Echocardiographic characteristics Groups n End-diastolic LV diameter(mm) End-diastolic Interventricular septum (mm) End-diastolic LV posterior wall LV mass Football Players 15 56.9 10.8 10.8 242 Basketball players 15 53.6 11.5 11.3 254 Inactive individuals 20 53.2 9.1 9.5 182 P value 0.01 <0.001 <0.001 <0.01 Abstract P955 Figure.


Author(s):  
O. Yu. Korotenko ◽  
N. I. Panev ◽  
S. N. Filimonov

Introduction. Anthracosilicosis (AS) is a serious and common occupational disease of workers in the coal industry, and among somatic diseases in miners more oft en than in the General population, there is an arterial hypertension (AH). One of the complications of such diseases is the development of chronic heart failure, and diastolic heart failure precedes the reduction of contractile function.The aim of the studywas to develop a system of diagnosis of predisposition to the formation of diastolic heart failure in patients with AS and AH.Materials and methods.71 miners with AC in combination with AH aged 40 to 54 years with preserved systolic function of the left  ventricle (LV) were examined. Determined by: the presence of diastolic dysfunction of the ventricles, the presence and degree of respiratory failure, obesity, blood group AB0, MN and Rh, mass index left  ventricular, thickness of the interventricular septum, posterior wall of LV anterior wall of right ventricle, index of relative wall thickness of LV and the average pressure in the pulmonary artery.Results.The higher the detection rate of this complication in the combination of AS and AG in patients with respiratory failure, obesity, with an increased index of myocardial mass of left  ventricle, index of relative wall thickness of LV sphericity index, thickening of the walls of the ventricles, increased pressure in the pulmonary artery, having blood group 0 (I), B (III), MM, NN, Rh-, R+. Th e method of predicting the development of diastolic heart failure is as follows: the survey is carried out once, 10 of the above markers are determined, the data are analyzed using a prognostic table.Conclusions.With the help of the proposed method of predicting the development of diastolic heart failure in miners with AS and AH, it is possible to quickly and with litt le material cost to identify a group of people with a high risk of developing this complication.


Author(s):  
Andrea Di Blasio ◽  
Francesco Di Donato ◽  
Angela De Stefano ◽  
Sabina Gallina ◽  
Monica Granieri ◽  
...  

Author(s):  
Casandra L. Niebel ◽  
Kelley C. Stewart ◽  
Takahiro Ohara ◽  
John J. Charonko ◽  
Pavlos P. Vlachos ◽  
...  

Left ventricular diastolic dysfunction (LVDD) is any abnormality in the filling of the left ventricle and is conventionally evaluated by analysis of the relaxation driven phase, or early diastole. LVDD has been shown to be a precursor to heart failure and the diagnosis and treatment for diastolic failure is less understood than for systolic failure. Diastole consists of two filling waves, early and late and is primarily dependent on ventricular relaxation and wall stiffness.


Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Satoshi Yamada ◽  
Kazunori Okada ◽  
Hisao Nishino ◽  
Hiroyuki Iwano ◽  
Daisuke Murai ◽  
...  

Background: Longitudinal myocardial shortening is known to be reduced even if left ventricular (LV) ejection fraction (EF) is preserved in patients with hypertensive heart disease (HHD). However, the compensatory mechanism remains to be elucidated. Thus layer-specific longitudinal and circumferential strain as well as stress-strain relationship was observed in HHD patients. Methods: In 46 HHD patients with preserved EF (>50%) and 29 age-matched control subjects, global longitudinal strain (LS) and layer-specific circumferential strain (CS) were measured from the apical 4-chamber view and mid-ventricular short-axis view, respectively, by using speckle tracking echocardiography. LS was measured at innermost LV wall layer, and CS at innermost, midwall, and outermost layers. Layer-specific end-systolic circumferential wall stress (CWS) according to Mirsky’s formula and endocardial meridional wall stress (MWS) were calculated. Results: Systolic blood pressure (147±20 mm Hg), interventricular septal thickness (13±2 mm), and LV dimension (48±4 mm) were greater in HHD than controls, whereas EF was comparable (66±8 vs 66±5%). LS was smaller in HHD than controls (-13±3 vs -17±3%, p<0.001) in spite of reduced MWS (520±141 vs 637±164 dyn·mm -2 , p<0.01), suggesting impaired longitudinal myocardial function in HHD. Similarly, CS was smaller in HHD than controls at outer layer (-6.8±2.2 vs -8.8±2.2%, p<0.01) and at midwall (-11.3±3.4 vs -13.9±3.2%, p<0.01) in spite of reduced CWS (outer: 238±82 vs 336±110 dyn·mm -2 , p<0.001; mid: 360±107 vs 473±131 dyn·mm -2 , p<0.001). In contrast, at the innermost layer, both CS (-26±5 vs -25±5%, p=0.41) and CWS (979±153 vs 992±139 dyn·mm -2 , p=0.72) were comparable between groups. Furthermore, the difference of CS between inner and outer layers significantly correlated with relative wall thickness (r=-0.33, p<0.01). Finally, CS at inner layer significantly correlated with EF (r=-0.43, p<0.001), whereas LS did not. Conclusions: In patients with HHD, intrinsic myocardial shortening was impaired both longitudinally and circumferentially. Some compensatory mechanism associated with increased relative wall thickness might work to maintain subendocardial CS, resulting in preserved EF.


2019 ◽  
Vol 26 (5) ◽  
pp. 43-52
Author(s):  
V. I. Tseluyko ◽  
L. M. Yakovleva ◽  
D. A. Korchagina

The aim – to study the features of structural and functional remodeling of the left ventricle in patients suffering from arterial hypertension with concomitant hypothyroidism and to determine clinical and past medical history and laboratory factors associated with their development. Materials and methods. 50 patients suffering from hypertension with concomitant hypothyroidism were enrolled into the study. Depending on the level of thyroid stimulating hormone in the serum the examined patients were distributed into two groups of 25 patients with the compensated and 25 with decompensated course of hypothyroidism. The control group consisted of 30 patients with hypertension in which the pathology of the thyroid gland was excluded. The comparison of the main parameters of the echocardiography study of the myocardium has been performed depending on hypothyroidism compensation. Assessment of parameters of transmitral diastolic blood flow has been performed. A regression analysis has been conducted to detect the relation of clinical and past medical history factors and echocardiographic parameters with the development of diastolic dysfunction by E/A ratio. The values of central hemodynamics have been studied for evaluation of the contractile function of the myocardium. Results and discussion. According to the results of the echocardiography of both examined groups it has been found that the final systolic and stroke volume exceeded the parameters of the control group. The mean value of the left ventricle ejection fraction was statistically significantly lower than in the control group (p=0.004). The left ventricle myocardial mass in patients with hypothyroidism was statistically significantly greater than in the control group. It was proved that in patients, who were diagnosed with decompensated hypothyroidism, the mean value of the left atrium size to growth by the degree of 2.7 was statistically significantly higher than in the control group (p=0.01), whereas the average value of the ratio of the size of the left atrium to the surface area of the body had no statistically significant differences between the groups. It has been found that in both groups the proportion of patients with diastolic dysfunction in which the E/A ratio was less than 1.0 was higher than in the control group (р=0.01 and p=0.03, respectively). The independent factors of diastolic dysfunction of the left ventricle in patients with hypertension in the presence of hypothyroidism have been found. Conclusions. In the presence of decompensated hypothyroidism in patients with arterial hypertension, both with obesity and with normal body mass index, left ventricular mass indexes were significantly higher in comparison with a control group. Regardless of the compensation of the thyroid state in patients with arterial hypertension, the ejection fraction was significantly lower. According to regression analysis, independent factors for the development of diastolic dysfunction in patients with arterial hypertension and hypothyroidism with a body mass index ≥ 30 kg/m2 is the index of mass of the left ventricular myocardium, determined by the degree of 2.7, the level of total cholesterol to statistical significance – the level of office systolic blood pressure and the duration of hormone replacement therapy for hypothyroidism; with body mass index < 30 kg/m2 – age and left atrial index, determined by body surface area. For patients with arterial hypertension and reduced thyroid gland function, violation of the left ventricular myocardial relaxation is typical as evidenced by a higher proportion of patients with a decrease in E/A to less than 0.8 in these patients.


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