keyword
MENU ▼
Read by QxMD icon Read
search

heart remodelling

keyword
https://www.readbyqxmd.com/read/29792339/pulmonary-hypertension-in-congenital-heart-disease
#1
Emma Pascall, Robert Mr Tulloh
Pulmonary hypertension is defined as a mean pulmonary arterial pressure ≥25 mmHg. We focus on its relevance in congenital heart disease, reviewing pathophysiology, diagnosis and management. Pulmonary hypertension is a relatively common complication of congenital heart disease, with adult prevalence between 5 and 10%. A multifactorial cause is recognized, relating to the size and nature of cardiac defect as well as environmental and genetic factors. More complex disease is increasingly recognized rather than pure Eisenmenger complex...
May 24, 2018: Future Cardiology
https://www.readbyqxmd.com/read/29791869/ghrelin-and-the-heart
#2
Takeshi Tokudome, Kentaro Otani, Mikiya Miyazato, Kenji Kangawa
Ghrelin, a growth hormone-releasing peptide that was first discovered in the stomach of rats in 1999, is an endogenous ligand of growth hormone secretagogue receptor. Ghrelin exerts its potent growth hormone-releasing and orexigenic activities by binding to specific receptors in the brain. Subsequent studies showed that ghrelin participates in the regulation of diverse processes, including energy balance, body weight maintenance, and glucose and fat metabolism, and demonstrated that ghrelin is beneficial for treatment of cardiac diseases...
May 20, 2018: Peptides
https://www.readbyqxmd.com/read/29791840/dynamic-cellular-integration-drives-functional-assembly-of-the-heart-s-pacemaker-complex
#3
Michael Bressan, Trevor Henley, Jonathan D Louie, Gary Liu, Danos Christodoulou, Xue Bai, Joan Taylor, Christine E Seidman, J G Seidman, Takashi Mikawa
Impulses generated by a multicellular, bioelectric signaling center termed the sinoatrial node (SAN) stimulate the rhythmic contraction of the heart. The SAN consists of a network of electrochemically oscillating pacemaker cells encased in a heterogeneous connective tissue microenvironment. Although the cellular composition of the SAN has been a point of interest for more than a century, the biological processes that drive the tissue-level assembly of the cells within the SAN are unknown. Here, we demonstrate that the SAN's structural features result from a developmental process during which mesenchymal cells derived from a multipotent progenitor structure, the proepicardium, integrate with and surround pacemaker myocardium...
May 22, 2018: Cell Reports
https://www.readbyqxmd.com/read/29789980/metabolic-remodeling-of-substrate-utilization-during-heart-failure-progression
#4
REVIEW
Liang Chen, Jiangping Song, Shengshou Hu
Heart failure (HF) is a clinical syndrome caused by a decline in cardiac systolic or diastolic function, which leaves the heart unable to pump enough blood to meet the normal physiological requirements of the human body. It is a serious disease burden worldwide affecting nearly 23 million patients. The concept that heart failure is "an engine out of fuel" has been generally accepted and metabolic remodeling has been recognized as an important aspect of this condition; it is characterized by defects in energy production and changes in metabolic pathways involved in the regulation of essential cellular functions such as the process of substrate utilization, the tricarboxylic acid cycle, oxidative phosphorylation, and high-energy phosphate metabolism...
May 23, 2018: Heart Failure Reviews
https://www.readbyqxmd.com/read/29788278/prognostic-value-of-left-ventricular-reverse-remodelling-and-recurrent-mitral-regurgitation-after-personalized-surgical-treatment-of-patients-with-non-ischaemic-cardiomyopathy-and-functional-mitral-regurgitation
#5
Annelieke H J Petrus, Laurens F Tops, Eva Timmer, Michel I M Versteegh, Olaf M Dekkers, Robert J M Klautz, Jerry Braun
OBJECTIVES: The aim of this study was to determine the prevalence of left ventricular reverse remodelling (LVRR) and recurrent mitral regurgitation (MR) at mid-term follow-up (1-2 years after surgery) in patients after personalized surgical treatment of heart failure and functional MR due to non-ischaemic cardiomyopathy and to assess their prognostic impact on long-term clinical outcomes. METHODS: Consecutive patients with refractory heart failure and non-ischaemic MR, who underwent mitral valve surgery with or without additional procedures, were identified...
May 19, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29786408/impact-of-additional-tricuspid-valve-annuloplasty-in-tof-patients-undergoing-pulmonary-valve-replacement
#6
Sabrina Lueck, Eike Bormann, Kathrin Rellensmann, Sven Martens, Andreas Rukosujew
BACKGROUND: Many patients with tetralogy of Fallot (TOF) who underwent surgical correction of their congenital cardiac malformation during infancy develop right ventricular dysfunction and exercise intolerance in the long term. The right ventricle (RV) dilates due to the development of severe pulmonary regurgitation (and secondary tricuspid insufficiency). To reduce RV dilation and improve exercise tolerance pulmonary valve replacement (PVR) is the common therapeutic strategy. Whether concomitant tricuspid valve repair (TVR) is beneficial in these pure volume-overload conditions is still unknown...
May 22, 2018: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/29786039/role-of-soluble-st2-levels-and-beta-blockers-dosage-on-cardiovascular-events-of-patients-with-unselected-st-segment-elevation-myocardial-infarction
#7
Wei-Ping Huang, Xuan Zheng, Lei He, Xi Su, Cheng-Wei Liu, Ming-Xiang Wu
Background: Serum soluble ST2 (sST2) levels are elevated early after acute myocardial infarction and are related to adverse left ventricular (LV) remodeling and cardiovascular outcomes in ST-segment elevation myocardial infarction (STEMI). Beta-blockers (BB) have been shown to improve LV remodeling and survival. However, the relationship between sST2, final therapeutic BB dose, and cardiovascular outcomes in STEMI patients remains unknown. Methods: A total of 186 STEMI patients were enrolled at the Wuhan Asia Heart Hospital between January 2015 and June 2015...
June 5, 2018: Chinese Medical Journal
https://www.readbyqxmd.com/read/29785961/trajectories-of-childhood-blood-pressure-and-adult-left-ventricular-hypertrophy-the-bogalusa-heart-study
#8
Tao Zhang, Shengxu Li, Lydia Bazzano, Jiang He, Paul Whelton, Wei Chen
This longitudinal study aims to characterize longitudinal blood pressure (BP) trajectories from childhood and examine the impact of level-independent childhood BP trajectories on adult left ventricular hypertrophy (LVH) and remodeling patterns. The longitudinal cohort consisted of 1154 adults (787 whites and 367 blacks) who had repeated measurements of BP 4 to 15 times from childhood (4-19 years) to adulthood (20-51 years) and assessment of echocardiographic LV dimensions in adulthood. Model-estimated levels and linear slopes of BP at childhood age points were calculated in 1-year intervals using the growth curve parameters and their first derivatives, respectively...
May 21, 2018: Hypertension
https://www.readbyqxmd.com/read/29785959/common-carotid-artery-diameter-and-risk-of-cardiovascular-events-and-mortality-pooled-analyses-of-four-cohort-studies
#9
Sanaz Sedaghat, Thomas T van Sloten, Stéphane Laurent, Gérard M London, Bruno Pannier, Maryam Kavousi, Francesco Mattace-Raso, Oscar H Franco, Pierre Boutouyrie, M Arfan Ikram, Coen D A Stehouwer
Carotid arterial diameter enlargement is a manifestation of arterial remodeling and may be a risk factor for cardiovascular disease (CVD). We evaluated the association between carotid artery diameter and risk of stroke, coronary heart disease, CVD, and all-cause mortality and explored whether the associations could be explained by processes involved in arterial remodeling, that is, blood pressure-related media thickening, arterial stiffness, arterial wall stress, and atherosclerosis. We included 4887 participants (mean age 67±9 years; 54% women) from 4 cohort studies: Rotterdam Study, NEPHROTEST, Hoorn Study, and a study by Blacher et al...
May 21, 2018: Hypertension
https://www.readbyqxmd.com/read/29785884/morphological-changes-and-myocardial-function-assessed-by-traditional-and-novel-echocardiographic-methods-in-preadolescent-athlete-s-heart
#10
Anders W Bjerring, Hege Ew Landgraff, Svein Leirstein, Anette Aaeng, Hamza Z Ansari, Jørg Saberniak, Klaus Murbræch, Henrik Bruun, Thomas M Stokke, Kristina H Haugaa, Jostein Hallén, Thor Edvardsen, Sebastian I Sarvari
Background Athlete's heart is a term used to describe the morphological and functional changes in the hearts of athletes. Recent studies suggest that these changes may occur even in preadolescent athletes. This study aims to improve our understanding of the changes occurring in the preadolescent athlete's heart. Design and methods Cardiac morphology and function in 76 preadolescent cross-country skiers (aged 12.1 ± 0.2 years) were compared with 25 age-matched non-competing preadolescents. Echocardiography was performed in all subjects, including 2D speckle-tracking strain echocardiography and 3D echocardiography...
January 1, 2018: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/29782286/-ngal-as-a-marker-for-some-extrarenal-complications-in-acute-coronary-syndrome
#11
M A Shalenkova, Z D Mikhailova, P F Klimkin
AIM: To study the role of neutrophil gelatinase-associated lipocalin (NGAL) as a marker for extrarenal complications in patients with acute coronary syndrome (ACS). MATERIALS AND METHODS: For 110 patients with ACS on days 1-3 of hospitalization, concentrations of NGAL, serum (s-NGAL) and urinary (u-NGAL) NGAL, and N-terminal fragment of pro-B natriuretic peptide (NT-proBNP) were measured, and transthoracic echocardiography was performed. Incidence of cardiovascular complications was determined during the stay in the hospital; hemodynamic parameters (systolic and diastolic blood pressure, heart rate) were measured on admission...
2018: Kardiologiia
https://www.readbyqxmd.com/read/29782259/-relationship-of-remodeling-of-carotid-arteries-and-left-ventricular-geometry-in-patients-with-chronic-glomerulonephritis
#12
I T Murkamilov, K A Aitbaev, A S Sarybaev, V V Fomin, I G Gordeev, Z R Rayimzhanov, N A Redjapova, F A Yusupov
PURPOSE: to study clinical-functional features of remodeling of carotid arteries and its relation to restructuring of the left ventricle (LV) in patients with chronic glomerulonephritis at pre-dialysis stage. MATERIALS AND METHODS: We examined 269 patients (189 men, 80 women) with chronic glomerulonephritis (CGN) aged 17-71 years, at pre-dialysis stages of the disease. We analyzed biochemical parameters of peripheral blood with the determination of daily proteinuria and glomerular filtration rate (GFR)...
April 2018: Kardiologiia
https://www.readbyqxmd.com/read/29778861/multicenter-randomized-controlled-crossover-trial-comparing-hemodynamic-optimization-against-echocardiographic-optimization-of-av-and-vv-delay-of-cardiac-resynchronization-therapy-the-bravo-trial
#13
Zachary I Whinnett, S M Afzal Sohaib, Mark Mason, Edward Duncan, Mark Tanner, David Lefroy, Mohamed Al-Obaidi, Sue Ellery, Francisco Leyva-Leon, Tim Betts, Mark Dayer, Paul Foley, Jon Swinburn, Martin Thomas, Raj Khiani, Tom Wong, Zaheer Yousef, Dominic Rogers, Paul R Kalra, Vignesh Dhileepan, Katherine March, James Howard, Andreas Kyriacou, Jamil Mayet, Prapa Kanagaratnam, Michael Frenneaux, Alun D Hughes, Darrel P Francis
OBJECTIVES: BRAVO (British Randomized Controlled Trial of AV and VV Optimization) is a multicenter, randomized, crossover, noninferiority trial comparing echocardiographic optimization of atrioventricular (AV) and interventricular delay with a noninvasive blood pressure method. BACKGROUND: Cardiac resynchronization therapy including AV delay optimization confers clinical benefit, but the optimization requires time and expertise to perform. METHODS: This study randomized patients to echocardiographic optimization or hemodynamic optimization using multiple-replicate beat-by-beat noninvasive blood pressure at baseline; after 6 months, participants were crossed over to the other optimization arm of the trial...
May 11, 2018: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29777919/brain-to-bone-what-is-the-contribution-of-the-brain-to-skeletal-homeostasis
#14
REVIEW
Anna Idelevich, Roland Baron
The brain, which governs most, if not all, physiological functions in the body, from the complexities of cognition, learning and memory, to the regulation of basal body temperature, heart rate and breathing, has long been known to affect skeletal health. In particular, the hypothalamus - located at the base of the brain in close proximity to the medial eminence, where the blood-brain-barrier is not as tight as in other regions of the brain but rather "leaky", due to fenestrated capillaries - is exposed to a variety of circulating body cues, such as nutrients (glucose, fatty acids, amino acids), and hormones (insulin, glucagon, leptin, adiponectin) [1-3]...
May 16, 2018: Bone
https://www.readbyqxmd.com/read/29777559/utility-of-heart-rate-turbulence-and-t-wave-alternans-to-assess-risk-for-re-admission-and-cardiac-death-in-hospitalized-heart-failure-patients
#15
Shinya Yamada, Akiomi Yoshihisa, Yu Sato, Takamasa Sato, Masashi Kamioka, Takashi Kaneshiro, Masayoshi Oikawa, Atsushi Kobayashi, Hitoshi Suzuki, Takafumi Ishida, Yasuchika Takeishi
BACKGROUND: Heart failure (HF) patients have a higher risk of recurrent HF and cardiac death, and electrical remodeling is considered to be an important factor for HF progression. The present study aimed to validate the utility of electrocardiogram and Holter monitoring for the risk stratification of HF patients. METHODS: Our study comprised 215 patients (144 males, mean age 62 years) who had been hospitalized due to acute decompensated HF. Electrocardiogram (QRS duration and QTc interval) and 24-hour Holter monitoring (heart rate variability, heart rate turbulence and T-wave alternans [TWA]) were performed in stable condition before discharge...
May 18, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29777508/endothelial-progenitor-cells-in-heart-failure-an-authentic-expectation-for-potential-future-use-and-a-lack-of-universal-definition
#16
REVIEW
Andie H Djohan, Ching-Hui Sia, Poay Sian Lee, Kian-Keong Poh
Congestive heart failure (CHF) is a prevalent disease (especially among the elderly) with high mortality and morbidity rates. The pathological hallmark of CHF is a loss of cardiomyocytes leading to cardiac fibrosis and dysfunctional cardiac remodeling, which culminates in organ failure. Endothelial progenitor cells (EPCs) are bone marrow-derived cells that contribute to maintenance of the integrity of endothelial wall and protect ischemic myocardium through forming new blood vessels (vasculogenesis) or proliferation of pre-existing vasculature (angiogenesis)...
May 17, 2018: Journal of Cardiovascular Translational Research
https://www.readbyqxmd.com/read/29777282/ambulatory-intravenous-inotropic-support-and-or-levosimendan-in-pediatric-and-congenital-heart-failure-safety-survival-improvement-or-transplantation
#17
Sotiria C Apostolopoulou, George A Vagenakis, Alexandros Tsoutsinos, Felicia Kakava, Spyridon Rammos
End-stage heart failure (HF) frequently needs continuous inotropic support in hospital and has high morbidity and mortality in absence of heart transplantation. This study reports outcome, efficacy, and safety of continuous ambulatory inotropes (AI) and/or periodic levosimendan (LS) infusions in pediatric HF patients. The study included 27 patients, median age 9.4 (0.1-26.1) years, with severe HF (6 myocarditis, 13 dilated cardiomyopathy, 2 restrictive cardiomyopathy, 6 repaired congenital heart disease). Dobutamine and milrinone AI were administered in 21 patients through a permanent central catheter for median duration 1...
May 18, 2018: Pediatric Cardiology
https://www.readbyqxmd.com/read/29776421/evidence-for-a-hyper-reductive-redox-in-a-sub-set-of-heart-failure-patients
#18
Thiagarajan Sairam, Amit N Patel, Meenu Subrahmanian, Rajendiran Gopalan, Steven M Pogwizd, Sudha Ramalingam, Ramalingam Sankaran, Namakkal Soorapan Rajasekaran
BACKGROUND: Oxidative stress has been linked to heart failure (HF) in humans. Antioxidant-based treatments are often ineffective. Therefore, we hypothesize that some of the HF patients might have a reductive stress (RS) condition. Investigating RS-related mechanisms will aid in personalized optimization of redox homeostasis for better outcomes among HF patients. METHODS: Blood samples were collected from HF patients (n = 54) and healthy controls (n = 42) and serum was immediately preserved in - 80 °C for redox analysis...
May 18, 2018: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29775412/inhibitor-of-lysyl-oxidase-improves-cardiac-function-and-the-collagen-mmp-profile-in-response-to-volume-overload
#19
Elia C El Hajj, Milad C El Hajj, Van K Ninh, Jason D Gardner
The cardiac extracellular matrix is a complex architectural network that serves many functions including providing structural and biochemical support to surrounding cells, and regulating intercellular signaling pathways. Cardiac function is directly affected by extracellular matrix (ECM) composition, and alterations of the ECM contribute to progression of heart failure. Initially, collagen deposition is an adaptive response that aims to preserve tissue integrity and maintain normal ventricular function. However, the synergistic effects of the pro-inflammatory and pro-fibrotic responses induce a vicious cycle which causes excess activation of myofibroblasts, significantly increasing collagen deposition and accumulation in the matrix...
May 18, 2018: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29775405/the-mouse-heart-attack-research-tool-mhart-1-0-database
#20
Kristine Y DeLeon-Pennell, Rugmani Padmanabhan Iyer, Yonggang Ma, Andriy Yabluchanskiy, Rogelio Zamilpa, Ying Ann Chiao, Presley Cannon, Courtney Cates, Elizabeth R Flynn, Ganesh V Halade, Lisandra E de Castro Bras, Merry L Lindsey
The generation of Big Data has enabled systems-level dissections into the mechanisms of cardiovascular pathology. Integration of genetic, proteomic, and pathophysiological variables across platforms and laboratories fosters discoveries through multidisciplinary investigations and minimizes unnecessary redundancy in research efforts. The Mouse Heart Attack Research Tool (mHART) consolidates a large dataset of over 10 years of experiments from a single laboratory for cardiovascular investigators to generate novel hypotheses and identify new predictive markers of progressive left ventricular remodeling following myocardial infarction (MI) in mice...
May 18, 2018: American Journal of Physiology. Heart and Circulatory Physiology
keyword
keyword
111827
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"