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Diastolic dysfunction

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https://www.readbyqxmd.com/read/28937040/surgical-outcomes-of-anomalous-origin-of-the-left-coronary-artery-from-the-pulmonary-artery-in-children-an-echocardiography-follow-up
#1
Yan Gao, Jing Zhang, Guo-Ying Huang, Xue-Cun Liang, Bing Jia, Xiao-Jing Ma
BACKGROUND: Anomalous origin of the left coronary artery from the pulmonary artery (ALCAPA) is a rare but potentially life-threatening congenital heart defect. A retrospective analysis was carried out to elucidate the surgical outcomes of ALCAPA in infants and children using follow-up echocardiography. METHODS: From September 2008 to March 2017, 26 children diagnosed with ALCAPA underwent left coronary re-implantation. All surviving patients received echocardiography during follow-up...
October 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28935634/assessment-of-left-ventricular-function-and-peripheral-vascular-arterial-stiffness-in-patients-with-dipper-and-non-dipper-hypertension
#2
Yan Chen, Ju-Hua Liu, Zhe Zhen, Yuan Zuo, Qingshan Lin, Mingya Liu, Chunting Zhao, Min Wu, Gaozhen Cao, Run Wang, Hung-Fat Tse, Kai-Hang Yiu
A non-dipper pattern of high blood pressure is associated with increased risk of organ damage and cardiovascular disease in patients with hypertension. The aim of the study was to evaluate the left ventricular (LV) remodeling and function and arterial stiffness in a dipper/non-dipper pattern of high blood pressure in patients with hypertension. A total of 183 hypertensive patients with no history of adverse cardiovascular events were divided into two groups based on 24 hours ambulatory blood pressure monitoring (ABPM): 66 patients with a dipper pattern and 117 patients with non-dipper pattern...
September 20, 2017: Journal of Investigative Medicine: the Official Publication of the American Federation for Clinical Research
https://www.readbyqxmd.com/read/28935506/endothelial-specific-sirt3-deletion-impairs-glycolysis-and-angiogenesis-and-causes-diastolic-dysfunction
#3
Xiaochen He, Heng Zeng, Sean T Chen, Richard J Roman, Judy L Aschner, Sean Didion, Jian-Xiong Chen
Endothelial glycolysis plays a critical role in the regulation of angiogenesis. We investigated the role of Sirtuin 3 (SIRT3) on endothelial cell (EC) glycolytic metabolism, angiogenesis, and diastolic function. Our aim was to test the hypothesis that loss of SIRT3 in ECs impairs endothelial glycolytic metabolism and angiogenesis and contributes to myocardial capillary rarefaction and the development of diastolic dysfunction. Using SIRT3 deficient ECs, SIRT3 was found to regulate a metabolic switch between mitochondrial respiration and glycolysis...
September 18, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/28934928/complexity-of-pathomechanisms-leading-to-diastolic-heart-failure-in-diabetes-mellitus-potential-field-for-therapeutic-interventions
#4
Michael Schwarzer, Michel Noutsias, Frank Spillmann, P Christian Schulze, Torsten Doenst, Carsten Tschöpe
Advanced glycation end products (AGE) have been implicated in diabetes associated complications. They have been suggested as potential mediators in the progression of diabetic heart failure and as a potential target for treatment. Brunvand et al. now provided evidence in that the suggested causal relationship between AGE and diastolic myocardial dysfunction cannot be confirmed in children with type 1 diabetes. The early signs of diastolic myocardial impairment were associated with higher BMI, but not with HbA1c levels...
September 21, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28934669/transforming-growth-factor-beta-tgf-%C3%AE-mediates-cardiac-fibrosis-and-induces-diabetic-cardiomyopathy
#5
REVIEW
Yiyang Yue, Ke Meng, Yuejie Pu, Xiaoming Zhang
Cardiovascular diseases account for the major cause of morbidity and mortality among individuals with diabetes. The diabetic cardiomyopathy (DCM) is a type of diabetic cardiovascular disease, which further directs to the heart failure. The researchers found that diabetes induced cardiac fibrosis plays a vital role in several of the pathological changes that associated with DCM, causing left ventricular hypertrophy (LVH), diastolic dysfunction and systolic dysfunction. However, the mechanisms involved in the pathogenesis of DCM are still elusive...
September 1, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28933414/association-between-low-serum-bicarbonate-concentrations-and-cardiovascular-disease-in-patients-in-the-end-stage-of-renal-disease
#6
Vaia D Raikou, Despina Kyriaki
BACKGROUND: Metabolic acidosis, a common condition particularly in the end-stage of renal disease patients, results in malnutrition, inflammation and oxidative stress. In this study, we focused on the association between low serum bicarbonate and cardiovascular disease in patients on intermittent dialysis. METHODS: We studied 52 on-line-pre-dilution hemodiafiltration (on-l HDF) patients, 32 males and 20 females, with a mean age of 58.01 ± 15.4 years old. Metabolic acidosis was determined by serum bicarbonate concentrations less than 22 mmol/L...
November 15, 2016: Diseases (Basel)
https://www.readbyqxmd.com/read/28929246/a-numerical-study-of-the-hemodynamic-effect-of-the-aortic-valve-on-coronary-flow
#7
Shaily Wald, Alex Liberzon, Idit Avrahami
During diastole, coronary perfusion depends on the pressure drop between the myocardial tissue and the coronary origin located at the aortic root. This pressure difference is influenced by the flow field near the closing valve leaflets. Clinical evidence is conclusive that patients with severe aortic stenosis (AS) suffer from diastolic dysfunction during hyperemia, but show increased coronary blood flow (CBF) during rest. Transcatheter aortic valve implantation (TAVI) was shown to decrease rest CBF along with its main purpose of improving the aortic flow and reducing the risk of heart failure...
September 19, 2017: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/28928716/cushing-s-disease-subclinical-left-ventricular-systolic-and-diastolic-dysfunction-revealed-by-speckle-tracking-echocardiography-and-tissue-doppler-imaging
#8
Beata Uzie Bło-Życzkowska, Paweł Krzesinński, Przemysław Witek, Grzegorz Zielinński, Agnieszka Jurek, Grzegorz Gielerak, Andrzej Skrobowski
OBJECTIVE: Novel echocardiographic techniques, such as speckle tracking echocardiography (STE) and tissue Doppler imaging, are sensitive tools for assessing left ventricular (LV) performance. LV global longitudinal strain (GLS), assessed by STE, is a sensitive marker of myocardial systolic function. Cardiovascular complications in patients with Cushing's disease (CD) determine a higher mortality than that in an age- and gender-matched population. Cardiac systolic dysfunction may be detected in early stages by STE...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28928607/speckle-tracking-evaluation-of-right-ventricular-functions-in-children-with-sickle-cell-disease
#9
Osama Abd Rab Elrasol Tolba, Mohamed Ramadan El-Shanshory, Mohamed Abd Elaziz El-Gamasy, Walid Ahmed El-Shehaby
BACKGROUND: Cardiac dysfunction is a risk factor for death in patients with sickle cell disease (SCD). AIM OF THE WORK: Aim of the work is to evaluate the right ventricular systolic and diastolic functions by tissue Doppler and speckling tracking imaging in children with SCD. SUBJECTS AND METHODS: Thirty children with SCD and thirty controls were subjected to clinical, laboratory evaluations, and echocardiographic study using GE Vivid 7 (GE Medical System, Horten, Norway with a 3...
September 2017: Annals of Pediatric Cardiology
https://www.readbyqxmd.com/read/28927559/association-of-aortic-root-dilation-from-early-adulthood-to-middle-age-with-cardiac-structure-and-function-the-cardia-study
#10
Chike C Nwabuo, Henrique T Moreira, Henrique D Vasconcellos, Bharath Ambale-Venkatesh, Kihei Yoneyama, Yoshiaki Ohyama, Ravi K Sharma, Anderson C Armstrong, Mohammed R Ostovaneh, Cora E Lewis, Kiang Liu, Pamela J Schreiner, Kofo O Ogunyankin, Samuel S Gidding, João A C Lima
BACKGROUND: The human aorta dilates with advancing age. However, the association between progressive aortic dilation with aging and cardiac remodeling has not been established in studies of community-dwelling adults. The aim of this study was to test the hypothesis that there would be a relationship between aortic size increase over the early adult life span with left ventricular (LV) structural remodeling and subclinical LV dysfunction in middle age, even in the absence of overt cardiovascular and valvular disease...
September 15, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28923309/altered-penile-caveolin-expression-in-diabetes-potential-role-in-erectile-dysfunction
#11
Jay Parikh, Alice Zemljic-Harpf, Johnny Fu, Dimosthenis Giamouridis, Tung-Chin Hsieh, Adam Kassan, Karnam S Murthy, Valmik Bhargava, Hemal H Patel, M Raj Rajasekaran
BACKGROUND: The pathophysiology of increased severity of erectile dysfunction in men with diabetes and their poor response to oral pharmacotherapy are unclear. Defective vascular endothelium and consequent impairment in the formation and action of nitric oxide (NO) are implicated as potential mechanisms. Endothelial NO synthase, critical for NO generation, is localized to caveolae, plasma membrane lipid rafts enriched in structural proteins, and caveolins. Type 2 diabetes mellitus (T2DM)-induced changes in caveolin expression are recognized to play a role in cardiovascular dysfunction...
September 8, 2017: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/28920862/enhanced-endothelium-epithelial-sodium-channel-signaling-prompts-left-ventricular-diastolic-dysfunction-in-obese-female-mice
#12
Guanghong Jia, Javad Habibi, Annayya R Aroor, Michael A Hill, Vincent G DeMarco, Li E Lee, Lixin Ma, Brady J Barron, Adam Whaley-Connell, James R Sowers
OBJECTIVE: Enhanced activation of cell specific mineralocorticoid receptors (MRs) in obesity plays a key role in the development of cardiovascular disease including cardiac diastolic dysfunction as a critical prognosticator. Our previous investigations demonstrated that selective endothelium MR activation promotes a maladaptive inflammatory response and fibrosis in cardiovascular tissue in female mice fed a western diet (WD), and this was associated with expression and activation of the epithelial sodium channel on the surface of endothelial cells (EnNaC)...
September 8, 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28918835/left-ventricular-false-tendons-are-associated-with-left-ventricular-dilation-and-impaired-systolic-and-diastolic-function
#13
Michael E Hall, Joseph A Halinski, Thomas N Skelton, William F Campbell, Michael R McMullan, Robert C Long, Myrna N Alexander, James D Pollard, John E Hall, Ervin R Fox, Michael D Winniford, Daisuke Kamimura
BACKGROUND: Left ventricular false tendons (LVFTs) are chord-like structures that traverse the LV cavity and are generally considered to be benign. However, they have been associated with arrhythmias, LV hypertrophy and LV dilation in some small studies. We hypothesize that LVFTs are associated with LV structural and functional changes assessed by echocardiography. METHODS: We retrospectively evaluated echocardiographic and clinical parameters of 126 patients identified as having LVFTs within the past 2 years and compared them to 85 age-matched controls without LVFTs...
September 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28914852/-efficiency-of-immunosuppressive-therapy-in-virus-negative-and-virus-positive-patients-with-morphologically-verified-lymphocytic-myocarditis
#14
O V Blagova, A V Nedostup, E A Kogan, V A Sulimov
AIM: To evaluate the efficiency of immunosuppressive therapy (IST) in virus-negative (V-) and virus-positive (V+) patients with lymphocytic myocarditis (LM). SUBJECTS AND METHODS: 60 patients (45 males) (mean age 46.7±11.8 years) with dilated cardiomyopathy (mean left ventricular (LV) end diastolic size (EDS) 6.7±0.7 cm; ejection fraction (EF) 26.2±9.1%) were examined. The diagnosis of active/borderline LM was verified by right ventricular endomyocardial biopsy in 38 patients, by intraoperative LV biopsy in 10, in the study of explanted hearts from 3 patients and at autopsy in 9...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28914725/sleep-duration-and-quality-as-related-to-left-ventricular-structure-and-function
#15
Jae-Hon Lee, Sung Keun Park, Jae-Hong Ryoo, Chang-Mo Oh, Jeong Gyu Kang, Rodrigo B Mansur, Jeffrey E Alfonsi, Yena Lee, Sun-Han Shin, Roger S McIntyre, Ju Young Jung
OBJECTIVE: Inadequate sleep is associated with increased risk of cardiovascular events; however, the associations between sleep duration or quality and cardiac function or structure are not well understood. This cross-sectional study was conducted to investigate to what extent sleep duration and quality are associated with left ventricular (LV) diastolic dysfunction or structural deterioration. METHODS: A total of 31,598 healthy Korean adults who received echocardiography and completed the Pittsburg Sleep Quality Index were enrolled in this study...
September 13, 2017: Psychosomatic Medicine
https://www.readbyqxmd.com/read/28914601/left-ventricular-long-axis-function-assessed-with-cardiac-cine-mr-imaging-is-an-independent-predictor-of-all-cause-mortality-in-patients-with-reduced-ejection-fraction-a-multicenter-study
#16
Simone Romano, Robert M Judd, Raymond J Kim, Han W Kim, Igor Klem, John F Heitner, Dipan J Shah, Jennifer Jue, Afshin Farzaneh-Far
Purpose To evaluate the prognostic value of a simple index of left ventricular (LV) long-axis function-lateral mitral annular plane systolic excursion (MAPSE)-in a large multicenter population of patients with reduced ejection fraction (EF) who were undergoing cardiac magnetic resonance (MR) imaging. Materials and Methods This retrospective study included 1040 consecutive patients (mean age, 59.5 years ± 15.8) at four U.S. medical centers who were undergoing cardiac MR imaging for assessment of LV dysfunction with EF less than 50%...
September 14, 2017: Radiology
https://www.readbyqxmd.com/read/28913656/new-insights-into-cardiac-involvement-in-juvenile-scleroderma-a-three-dimensional-echocardiographic-assessment-unveils-subclinical-ventricle-dysfunction
#17
Reyhan Dedeoglu, Amra Adroviç, Funda Oztunç, Sezgin Sahin, Kenan Barut, Ozgur Kasapcopur
Cardiac manifestations in juvenile scleroderma or systemic sclerosis (JSSc) have poor prognosis, begin in early stages of the disease, and remain clinically asymptomatic. New echocardiography modalities, such as 2D/3D speckle tracking (STE, strain analysis for regional and global ventricular functions), can detect cardiac involvement in early stages. We assessed 21 JSSc patients and 19 controls using 2D/3D STE. The left ventricular end diastolic volume, end systolic volume, and ejection fraction of the patient and control groups were significantly different (99...
September 14, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28912185/restrictive-cardiomyopathy-genetics-pathogenesis-clinical-manifestations-diagnosis-and-therapy
#18
REVIEW
Eli Muchtar, Lori A Blauwet, Morie A Gertz
Restrictive cardiomyopathy (RCM) is characterized by nondilated left or right ventricle with diastolic dysfunction. The restrictive cardiomyopathies are a heterogenous group of myocardial diseases that vary according to pathogenesis, clinical presentation, diagnostic evaluation and criteria, treatment, and prognosis. In this review, an overview of RCMs will be presented followed by a detailed discussion on 3 major causes of RCM, for which tailored interventions are available: cardiac amyloidosis, cardiac sarcoidosis, and cardiac hemochromatosis...
September 15, 2017: Circulation Research
https://www.readbyqxmd.com/read/28912181/hypertrophic-cardiomyopathy-genetics-pathogenesis-clinical-manifestations-diagnosis-and-therapy
#19
REVIEW
Ali J Marian, Eugene Braunwald
Hypertrophic cardiomyopathy (HCM) is a genetic disorder that is characterized by left ventricular hypertrophy unexplained by secondary causes and a nondilated left ventricle with preserved or increased ejection fraction. It is commonly asymmetrical with the most severe hypertrophy involving the basal interventricular septum. Left ventricular outflow tract obstruction is present at rest in about one third of the patients and can be provoked in another third. The histological features of HCM include myocyte hypertrophy and disarray, as well as interstitial fibrosis...
September 15, 2017: Circulation Research
https://www.readbyqxmd.com/read/28911024/ambulatory-pulse-pressure-predicts-the-development-of-left-ventricular-diastolic-dysfunction-in-over-20-years-of-follow-up
#20
Tero J W Pääkkö, Reko J Renko, Juha S Perkiömäki, Y Antero Kesäniemi, Antti S Ylitalo, Jarmo A Lumme, Heikki V Huikuri, Heikki Ruskoaho, Olli Vuolteenaho, Olavi H Ukkola
BACKGROUND: Ambulatory blood pressure (ABP) has been shown to have an association with left ventricular diastolic dysfunction (LVDD) in cross-sectional assessments. We evaluated the association between ABP measurement (ABPM) and the development of LVDD during over 20 years of follow up in 414 middle-aged subjects from OPERA cohort. METHODS: ABPM, clinical, and anthropometric measurements were performed in baseline. Echocardiographic measurements were performed at baseline and during follow-up and E/E' ≥15 was considered indicating significant LVDD...
October 1, 2017: American Journal of Hypertension
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