Evaluation of the left ventricle longitudinal deformity using myocardial-tracking signals in severely obese adolescents

2015 ◽  
Vol 26 (4) ◽  
pp. 749-753 ◽  
Author(s):  
Norma Balderrábano ◽  
Blanca Del Rio ◽  
Elsy Navarrete ◽  
Arturo Berber ◽  
Nancy Méndez
Keyword(s):  
Left Ventricle ◽  
Cross Sectional Study ◽  
Left Ventricular ◽  
The Body ◽  
School Age Children ◽  
Left Ventricular Ejection ◽  
Cross Sectional ◽  
Ventricular Ejection Fraction ◽  
Obese Adolescents ◽  
Severely Obese

AbstractBackgroundThe global prevalence of obesity in school-age children and adolescents has increased in recent decades. Obesity modifies some aspects of the cardiovascular system in order to preserve the body homoeostasis. Echocardiography to study ventricular function plays an important role in the evaluation of pathological re-modelling associated with left ventricular dysfunction. The aim of this study was to evaluate the left ventricle function and structure with conventional echocardiography and to analyse the longitudinal deformity of the left ventricle using myocardial-tracking signals in a group of severely obese adolescents.Methods and resultsWe carried out a descriptive cross-sectional study. We describe the evaluation of the left ventricle using conventional bi-dimensional echocardiography and the myocardial-tracking signals in severely obese adolescents. There were 34 severely obese adolescents included in our study; 52% had a left ventricular ejection fraction<55%, the left ventricular end-diastolic diameter was increased in 70.5% of patients, and 32.3% had an increase in left ventricular mass. On average, 78.9% had abnormal values of left ventricle longitudinal deformations. The number of segments affected per patient was, on average, 5.8, with the anterior apical segment being the most commonly affected. There was a decrease in global longitudinal deformity in 79.4% of the cases.ConclusionMore than half of this group of asymptomatic severely obese adolescents showed abnormalities in left ventricular structure and function evaluated using traditional echocardiographic methods, but 100% of the cases showed abnormalities in longitudinal deformation in at least one of the 17 left ventricle segments evaluated using myocardial-tracking signals.

scholarly journals GH Receptor Exon 3 Genotype and Echocardiographic Abnormalities in Patients With Active Acromegaly

2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. A643-A644
Author(s):  
Karla Serrano ◽  
Etual Espinosa ◽  
Daniel Marrero-Rodríguez ◽  
Eduardo Almeida ◽  
Gloria Silva-Roman ◽  
...  
Keyword(s):  
Systolic Dysfunction ◽  
Cross Sectional Study ◽  
Left Ventricular ◽  
Left Ventricular Ejection ◽  
Genotype 3 ◽  
Cross Sectional ◽  
Ventricular Ejection Fraction ◽  
Gh Receptor ◽  
Active Acromegaly

Abstract Background: The GH receptor (GHR) exon 3 polymorphism occurs at a genomic level. Approximately 50-60% of the population is homozygous for the exon-3 containing genotype (+3/+3), 30-40% are heterozygous (+3/-3) and 10-20% are homozygous for the exon-3 lacking genotype (-3/-3). Some studies suggest that children homo- and heterozygous for the GHR exon 3 lacking genotype (-more efficient 3/-3 and +3/-3, respectively) respond better to treatment with exogenous rhGH and there is also in vitro evidence showing a more efficient signal transduction through this exon 3 deleted isoform. Some studies have found that patients with acromegaly harboring the exon 3-deleted genotype may have a higher prevalence of diabetes and hypertension. Hypothesis and Objective: Patients with active acromegaly harboring the exon 3-lacking GHR genotype may have more echocardiographic abnormalities than those who are homozygous for the exon 3 containing genotype. Patients and Methods: This is a cross-sectional study of patients with active acromegaly, defined by an IGF-1 level &gt; 1.3 times the upper limit of normal (x ULN), who underwent transthoracic echocardiography. Exon-3 GHR genotype was determined by PCR using previously described sense and antisense primers. Results: The cohort consisted of 28 patients, 54% female, with a mean age of 51 ± 12 years. Mean disease duration at the time of echocardiographic examination was 4.48 ± 4.7 years; median basal GH and IGF-1 were 12 ± 26 ng/mL and 2.4 ± 1.04 x ULN. The prevalence of hypertension and diabetes were 43% and 36%, respectively. Fifty three percent of the patients were homozygous for the exon 3-containaing genotype (+3/+3), 18% were homozygous for the exon 3-lacking genotype (-3/-3) and 29% were heterozygous (+3/-3). Clinical and biochemical features did not differ between patients with the different GHR genotypes, except for hypertension that was more prevalent in the +3/+3 genotype group (60% vs 23%, p= 0.04). The frequency of the different echocardiographic parameters was similar among groups (left ventricular hypertrophy 33% vs 15%, p= 0.27; diastolic dysfunction 47% vs 31%, p= 0.39; subclinical systolic dysfunction 42% vs 54%, p= 0.54; left ventricular ejection fraction 59±10% vs 60±16%, p= 0.83); aortic valve abnormalities 19% vs 15%, p=0.63; mitral valve abnormalities 46% vs 15%, p=0.07). Conclusions: Echocardiographic abnormalities in patients with active acromegaly do not differ among patients with the different GHR exon 3 genotypes. The clinical spectrum of acromegaly varies considerably. Although such variability is usually related to the severity of the hypersomatotropinemia, in many patients this is not the case.

scholarly journals Is High Sensitive-Troponin I A Reliable Biomarker For Cardiac Injury In Methadone Toxicity? A Prospective Cross-Sectional Study

2021 ◽  
Author(s):  
Hasan Shemirani ◽  
Masoumeh Sadeghi ◽  
Azadeh Davoudian Dehkordi ◽  
Farzad Gheshlaghi
Keyword(s):  
Troponin I ◽  
Cardiac Injury ◽  
High Sensitivity ◽  
Cross Sectional Study ◽  
Left Ventricular ◽  
Left Ventricular Ejection ◽  
Cross Sectional ◽  
Ventricular Ejection Fraction ◽  
High Sensitivity Troponin ◽  
High Sensitive Troponin

Abstract Background: Methadone is a synthetic opioid mostly used for detoxification therapy, as its use increases; the possibility for methadone-induced cardiotoxicity may rise. The aim of this study was to determine the association of high-sensitivity troponin I levels as a predictor of cardiac injury in methadone toxicity.Methods: Sixty methadone toxicity patients included in this prospective cross-sectional study from October 2018-November 2020. High-sensitivity troponin I level and electrocardiogram were assessed in patients at admission. All patients underwent echocardiography at admission and 30 days later and compared this findings between two groups based on high-sensitivity troponin I results.Results: Mean age of the patients was 34.5±11.1 years (males: 66%). Twelve (20%) patients had positive high sensitive-troponin results. Long QT interval and inverted T in precordial leads were mostly observed in individuals with positive high-sensitivity troponin I (75% vs. 35%, P=0.013 and 83% vs. 16%, P<0.001, respectively). Patients with elevated troponin had reduced left ventricular ejection fraction in comparison to normal group during admission (43.1±15.4% vs. 55%, P<0.001) and this left ventricular ejection fraction remained abnormal after 30 days (43.7±21.6%). Patients in positive high-sensitivity troponin I group had higher regional wall motion abnormality frequency both at admission and 30 days later compared to the other group (0 day: 42% vs. 0, P<0.001, 30th days: 25% vs. 4%, P=0.020).Conclusion: Patients with simultaneous methadone toxicity and positive high-sensitivity troponin I had worse cardiac outcomes and this biomarker could be probably used for better implementation of therapeutic interventions and prognosis.

scholarly journals Comparison of tools for assessing fatigue in patients with heart failure

2018 ◽  
Vol 71 (5) ◽  
pp. 2404-2410 ◽  
Author(s):  
Eliane Nepomuceno ◽  
Luma Nascimento Silva ◽  
Débora Cristine Prévide da Cunha ◽  
Rejane Kiomi Furuya ◽  
Marcus Vinicius Simões ◽  
...  
Keyword(s):  
Heart Failure ◽  
New York ◽  
Heart Association ◽  
Cross Sectional Study ◽  
Left Ventricular ◽  
Left Ventricular Ejection ◽  
Cross Sectional ◽  
Ventricular Ejection Fraction ◽  
Significance Level ◽  
Patients With Heart Failure

ABSTRACT Objective: To compare the distributions of measurements of the Dutch Fatigue Scale (DUFS), Dutch Exertion Fatigue Scale (DEFS), and Fatigue Pictogram tools, according to the New York Heart Association (NYHA) Functional Classification and left ventricular ejection fraction (LVEF). Method: Methodological, cross-sectional study with 118 patients with heart failure. Variance analysis, Pearson's correlation, and Fisher's exact tests were carried out, with a significance level of 0.05. Results: There was an increase in the DUFS and DEFS means with worsening of the NYHA-FC (p<0.001, for both tools). Correlations among the LVEF resulted in positive and weak magnitude for the DEFS (r=0.18; p=0.05) and for the DUFS (r=0.16; p=0.08). Just the item A on the Fatigue Pictogram had an association with the NYHA-FC (p<0.001) and the LVEF (p=0.03). Conclusion: Three tools detected worsening in fatigue levels according to the illness severity assessed by the NYHA-FC.

scholarly journals Left Atrial Enlargement an Early Predictor for Development of Systolic Dysfunction – Results of a Cross-Sectional Study Conducted in Georgia

2017 ◽  
Vol 13 (33) ◽  
pp. 1
Author(s):  
Eka Rukhadze ◽  
Nino Tabagari-Bregvadze ◽  
Levan Tvildiani
Keyword(s):  
Left Ventricular Systolic Dysfunction ◽  
Systolic Dysfunction ◽  
Systolic Pressure ◽  
Cross Sectional Study ◽  
Left Ventricular ◽  
Left Ventricular Ejection ◽  
Sectional Study ◽  
Cross Sectional ◽  
Ventricular Ejection Fraction ◽  
Early Predictor

Background and Aims: Left ventricular systolic dysfunction, even asymptomatic, is associated with the development of heart failure (HF) and all-cause mortality. Left ventricular ejection fraction (LVEF) is the most commonly used marker of left ventricular systolic function. It is well established that early detection and treatment of reduced LVEF, as well as the aggressive management of predisposing conditions, delays the manifestation of HF. Our study aimed to measure the association between LVEF and other echocardiographic variables in a population with LVEF within the normal range and without symptoms of HF. Methods: We conducted a cross-sectional study in 2008-2009. Results: We analyzed echocardiographic and clinical data of 146 patients: 66.4% were women; mean age was 55 (40 –69 years). LVEF significantly correlated only with left atrium (LA) size (Beta -0.266, p < 0.05). The correlation was inverse and remained significant after adjusting for age, gender, obesity, diabetes, arterial hypertension, left ventricular hypertrophy, pulmonary systolic pressure, mitral regurgitation, and diastolic dysfunction. Conclusions: We found that the earliest structural change associated with LVEF tendency to decrease was LA size. Further research is needed to assess the LA enlargement as an early predictor of systolic dysfunction development.

Evaluation of inflammatory and cardiac-electrophysiological markers in patients undergoing peritoneal dialysis

2020 ◽  
Vol 14 (17) ◽  
pp. 1641-1649
Author(s):  
Junyan Fang ◽  
Haixia Su ◽  
Ahui Song ◽  
Yan Tong ◽  
Zehui Huang ◽  
...  
Keyword(s):  
Peritoneal Dialysis ◽  
Cross Sectional Study ◽  
Left Ventricular ◽  
High Serum ◽  
Left Ventricular Ejection ◽  
Dialysis Patients ◽  
Related Factors ◽  
Cross Sectional ◽  
Ventricular Ejection Fraction ◽  
Interval Ratio

Background: The Tp-e/QT (peak to end of T-wave duration/QT interval) ratio is a promising marker of myocardial repolarization and ventricular arrhythmogenesis. Its elevation is associated with sudden cardiac death in different clinical conditions. This study was designed to assess the possible association between increased Tp-e/QT ratio and clinical factors in peritoneal dialysis patients. Materials & methods: We devised a prospective cross-sectional study, which included 107 patients who were divided into groups according to their Tp-e/QT ratio. The association of an increased Tp-e/QT ratio with related factors was analyzed with multivariate logistic regression. Results: Thirty-one patients, who had an elevated Tp-e/QT ratio, showed higher values of IL-6, left ventricular end-systolic diameter, Tp-e, percentage of diabetes mellitus, coronary artery calcification, and left ventricular ejection fraction. Multivariate analysis revealed that IL-6 was an independent risk factor for a higher Tp-e/QT ratio after adjustments. Conclusion: Our study revealed that a high serum IL-6 level in peritoneal dialysis patients increased the risk of a higher Tp-e/QT ratio, which indicated a potentially hazardous interplay between inflammation and arrhythmogenesis.

scholarly journals Assosıation Between Left Ventricle Ejection Fraction and Vitamin D Levels in Congestive Heart Failure; a cross-sectional study

2020 ◽  
Author(s):  
Betul Ozdemir
Keyword(s):  
Heart Failure ◽  
Vitamin D ◽  
Congestive Heart Failure ◽  
Left Ventricle ◽  
Ejection Fraction ◽  
Left Ventricular ◽  
Left Ventricular Ejection ◽  
Cross Sectional ◽  
Ventricular Ejection Fraction ◽  
Vitamin D Levels

Background: Congestive heart failure (CHF) is a chronic disease that incidence is growing in the population. Vitamin D effects on directly myocardial cells. The aim of this study was to investigate the association between vitamin D levels with ejection fraction of left ventricle. Methods: The study population consisted of 101 patients admitted with heart failure. Age, gender, and demographic characteristics (diabetes mellitus, hypertension, smoking-nonsmoking, coronary artery disease) of all patients were recorded. In all patients for blood analyses vitamin D, creatine, crp and lipid profile were studied. And all patients were studied echocardiography. Results: CHF patients, in our population 35 (34.7%) patient is female and 66 (65.3%) patient is male. The mean age of our patients was calculated as 67.4±12.9 years. Our patients laboratory parameters mean were measured for vitamin D 24.3±17.3 ng/ml. Left Ventricular Ejection Fraction (LVEF) mean was measured 31.8±9.5. In our study group LVEF and vitamin D was correlated with each other Conclusion: Vitamin D and LVEF had a positive correlation in heart failure patients. It may be occured with the protective effect of vitamin D or consequence of hipovitaminosis. J Pharm Care 2020; 8(2): 50-52.

New Hybrid Method for Left Ventricular Ejection Fraction Assessment from Radionuclide Ventriculography Images

2020 ◽  
Vol 16 ◽  
Author(s):  
Halima Dziri ◽  
Mohamed Ali Cherni ◽  
Dorra Ben Sellem
Keyword(s):  
Left Ventricular Ejection Fraction ◽  
Left Ventricle ◽  
Ejection Fraction ◽  
Positive Predictive Value ◽  
Roc Curve ◽  
Radionuclide Ventriculography ◽  
Left Ventricular ◽  
The Other ◽  
Left Ventricular Ejection ◽  
Ventricular Ejection Fraction

Background: In this paper, we propose a new efficient method of radionuclide ventriculography image segmentation to estimate the left ventricular ejection fraction. This parameter is an important prognostic factor for diagnosing abnormal cardiac function. Methods: The proposed method combines the Chan-Vese and the mathematical morphology algorithms. It was applied to diastolic and systolic images obtained from the Nuclear Medicine Department of Salah AZAIEZ Institute.In order to validate our proposed method, we compare the obtained results to those of two methods of the literature. The first one is based on mathematical morphology, while the second one uses the basic Chan-Vese algorithm. To evaluate the quality of segmentation, we compute accuracy, positive predictive value and area under the ROC curve. We also compare the left ventricle ejection fraction estimated by our method to that of the reference given by the software of the gamma-camera and validated by the expert, using Pearson’s correlation coefficient, ANOVA test and linear regression. Results and conclusion: Static results show that the proposed method is very efficient in the detection of the left ventricle. The accuracy was 98.60%, higher than that of the other two methods (95.52% and 98.50%). Likewise, the positive predictive value was the highest (86.40% vs. 83.63% 71.82%). The area under the ROC curve was also the most important (0.998% vs. 0.926% 0.919%). On the other hand, Pearson's correlation coefficient was the highest (99% vs. 98% 37%). The correlation was significantly positive (p<0.001).

scholarly journals The Use of Artificial Hypoxia in Endurance Training in Patients after Myocardial Infarction

2021 ◽  
Vol 18 (4) ◽  
pp. 1633 ◽  
Author(s):  
Agata Nowak-Lis ◽  
Tomasz Gabryś ◽  
Zbigniew Nowak ◽  
Paweł Jastrzębski ◽  
Urszula Szmatlan-Gabryś ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Left Ventricle ◽  
Endurance Training ◽  
Exercise Tolerance ◽  
Collateral Circulation ◽  
Left Ventricular ◽  
Left Ventricular Ejection ◽  
Test Duration ◽  
Hemodynamic Parameters ◽  
Ventricular Ejection Fraction

The presence of a well-developed collateral circulation in the area of the artery responsible for the infarction improves the prognosis of patients and leads to a smaller area of infarction. One of the factors influencing the formation of collateral circulation is hypoxia, which induces angiogenesis and arteriogenesis, which in turn cause the formation of new vessels. The aim of this study was to assess the effect of endurance training conducted under normobaric hypoxia in patients after myocardial infarction at the level of exercise tolerance and hemodynamic parameters of the left ventricle. Thirty-five patients aged 43–74 (60.48 ± 4.36) years who underwent angioplasty with stent implantation were examined. The program included 21 training units lasting about 90 min. A statistically significant improvement in exercise tolerance assessed with the cardiopulmonary exercise test (CPET) was observed: test duration (p < 0.001), distance covered (p < 0.001), HRmax (p = 0.039), maximal systolic blood pressure (SBPmax) (p = 0.044), peak minute ventilation (VE) (p = 0.004) and breathing frequency (BF) (p = 0.044). Favorable changes in left ventricular hemodynamic parameters were found for left ventricular end-diastolic dimension LVEDD (p = 0.002), left ventricular end-systolic dimension LVESD (p = 0.015), left ventricular ejection fraction (LVEF) (p = 0.021), lateral e’ (p < 0.001), septal e’ (p = 0.001), and E/A (p = 0.047). Endurance training conducted in hypoxic conditions has a positive effect on exercise tolerance and the hemodynamic indicators of the left ventricle.

Left ventricular remodeling: is there a real impact of cardiac rehabilitation?

2021 ◽  
Vol 28 (Supplement_1) ◽  
Author(s):  
NPD Cunha ◽  
I Aguiar-Ricardo ◽  
T Rodrigues ◽  
P Silverio Antonio ◽  
S Couto Pereira ◽  
...  
Keyword(s):  
Exercise Training ◽  
Left Ventricle ◽  
Cardiac Rehabilitation ◽  
Phase Ii ◽  
Left Ventricular ◽  
Cardiac Resynchronization ◽  
Left Ventricular Ejection ◽  
Ventricular Ejection Fraction ◽  
Ischemic Disease ◽  
The Impact

Abstract Funding Acknowledgements Type of funding sources: None. Introduction A number of randomized controlled trials have examined the effect of exercise training on left ventricle (LV) remodeling in individuals with cardiovascular disease. However, the results of these trials have been inconclusive.  Purpose Evaluation of the impact of a cardiac rehabilitation program (CRP) on left ventricle remodelling evaluated by echocardiogram.  Methods Observational single centre study including consecutive patients, undergoing structured CRP since June 2016 until February 2020. Phase II CRP included 3 months of exercise training, aerobic and strength exercise, individually prescribed, 3 times a week, 60 minutes sessions. All patients were submitted to a clinical evaluation, echocardiogram, and cardiopulmonary exercise test before and after the CRP. Results 205 patients (62.6 ± 11 years, 83.4% men, 82.3% ischemic disease) were included in a phase II CRP. Most patients had ischemic disease (82.3%) and 23.5% of patients had left ventricular ejection fraction (LVEF) &lt;40%. Of the cardiovascular risk factors, hypertension was the most prevalent (76%), followed by dyslipidaemia (67.4%), active smoking (45.9%) and diabetes (26.9%).  After the CRP, there was a significant improvement of LVEF (from 48.3 ± 13 to 52 ± 11.6 %, p = 0.001) and a significant reduction of LV volumes (LV end-diastolic volume, LVEDV , decreased from 140 ± 81 to 121 ± 57, p = 0.002; LV end-systolic volume , LVESV , reduced from 80 ± 75 to 64 ± 48, p = 0.004). Considering only the patients with LVEF &lt; 40% (n = 38), the improvement was even greater: LVEF increased from 30 ± 8 to 39 ± 13 (p = 0.002); LVEDV reduced from 206 ± 107 to 159 ± 81 (p = 0.001) and LVESV reduced from 142 ± 99 to 101 ± 66 (p = 0.002). 63.6%(n = 14) of these patients improved at least 10% of LVEF and only 1 of them had a cardiac resynchronization therapy device.  Conclusions A phase II CR program was associated with significant improvements in left ventricular reverse remodelling irrespective of baseline EF classification. Those with reduced baseline EF derived an even greater improvement, highlighting the great importance of CR in this subgroup of patients.

scholarly journals CBR3 V244M is associated with LVEF reduction in breast cancer patients treated with doxorubicin

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Jennifer K. Lang ◽  
Badri Karthikeyan ◽  
Adolfo Quiñones-Lombraña ◽  
Rachael Hageman Blair ◽  
Amy P. Early ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cancer Patients ◽  
Care Center ◽  
Left Ventricular ◽  
The Body ◽  
Left Ventricular Ejection ◽  
Breast Cancer Patients ◽  
Ventricular Ejection Fraction ◽  
Echocardiographic Parameters ◽  
The Impact

Abstract Background The CBR3 V244M single nucleotide polymorphism has been linked to the risk of anthracycline-related cardiomyopathy in survivors of childhood cancer. There have been limited prospective studies examining the impact of CBR3 V244M on the risk for anthracycline-related cardiotoxicity in adult cohorts. Objectives This study evaluated the presence of associations between CBR3 V244M genotype status and changes in echocardiographic parameters in breast cancer patients undergoing doxorubicin treatment. Methods We recruited 155 patients with breast cancer receiving treatment with doxorubicin (DOX) at Roswell Park Comprehensive Care Center (Buffalo, NY) to a prospective single arm observational pharmacogenetic study. Patients were genotyped for the CBR3 V244M variant. 92 patients received an echocardiogram at baseline (t0 month) and at 6 months (t6 months) of follow up after DOX treatment. Apical two-chamber and four-chamber echocardiographic images were used to calculate volumes and left ventricular ejection fraction (LVEF) using Simpson’s biplane rule by investigators blinded to all patient data. Volumetric indices were evaluated by normalizing the cardiac volumes to the body surface area (BSA). Results Breast cancer patients with CBR3 GG and AG genotypes both experienced a statistically significant reduction in LVEF at 6 months following initiation of DOX treatment for breast cancer compared with their pre-DOX baseline study. Patients homozygous for the CBR3 V244M G allele (CBR3 V244) exhibited a further statistically significant decrease in LVEF at 6 months following DOX therapy in comparison with patients with heterozygous AG genotype. We found no differences in age, pre-existing cardiac diseases associated with myocardial injury, cumulative DOX dose, or concurrent use of cardioprotective medication between CBR3 genotype groups. Conclusions CBR3 V244M genotype status is associated with changes in echocardiographic parameters suggestive of early anthracycline-related cardiomyopathy in subjects undergoing chemotherapy for breast cancer.

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