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Treatment of heart failure

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https://www.readbyqxmd.com/read/29451818/overexpression-of-heart-specific-small-subunit-of-myosin-light-chain-phosphatase-results-in-heart-failure-and-conduction-disturbance
#1
Takuro Arimura, Antoine Muchir, Masayoshi Kuwahara, Sachio Morimoto, Taisuke Ishikawa, Cheng-Kun Du, Dong-Yun Zhan, Shu Nakao, Noboru Machida, Ryo Tanaka, Yoshihisa Yamane, Takeharu Hayashi, Akinori Kimura
Mutations in genes encoding components of sarcomere cause cardiomyopathy, which is often associated with abnormal Ca 2+ sensitivity of muscle contraction. We previously showed that a heart-specific myosin light chain phosphatase small subunit, hHS-M 21 , increases the Ca 2+ -sensitivity of muscle contraction. The aim of this study was to investigate the function of hHS-M 21 in vivo and the causative role of abnormal Ca 2+ sensitivity in cardiomyopathy. We generated transgenic (Tg) mice with cardiac-specific overexpression of hHS-M 21 ...
February 16, 2018: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29451509/-diagnosis-and-treatment-of-blood-volume-changes-in-acute-heart-failure-a-brief-practical-guide
#2
Paola Ciancetta, Salvatore M Maggiore, Flavia Petrini, Raffaele De Caterina
The correct management of acute heart failure continues to pose diagnostic and therapeutic challenges. In particular, administering the right type and dose of fluids and drugs, thus avoiding fluid overload while establishing organ perfusion, is of key importance in stabilizing critical patients and improving prognosis. A correct estimate of the fluid volume status, however, may be difficult, as the invasive evaluation of cardiac filling pressures by cardiac catheterization is limited in routine medical practice, and there is no universal consensus on the best tools for its non-invasive evaluation...
January 2018: Giornale Italiano di Cardiologia
https://www.readbyqxmd.com/read/29451110/-risk-of-heart-failure-diminished-thanks-to-stomach-reduction-in-obesity
#3
B Botter, E Koolen, G van Montfort, F Bracke, A Bouwman, M Buise
BACKGROUND: Obesity is a chronic disease and a risk factor for heart failure. In end-stage heart failure, heart transplantation may be the only available treatment option, but obesity is a contraindication for this treatment because of its unfavourable prognosis. Bariatric surgery and its subsequent weight loss may affect the indication for transplantation in patients with heart failure and morbid obesity. CASE DESCRIPTION: A 46-year-old patient with morbid obesity and heart failure underwent gastric sleeve resection in preparation of a heart transplantation...
2018: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/29451101/severe-tricuspid-regurgitation-and-seizure-on-postpartum-day-10-case-report-of-late-postpartum-eclampsia
#4
Martin Vanden Eede, Matthew Schroyens
OBJECTIVE AND IMPORTANCE: Late postpartum eclampsia is characterized by pre-eclampsia and tonic-clonic seizures presenting more than 48 hours postpartum. It is a rare, frightening and dangerous complication that requires rapid recognition and adequate treatment. CLINICAL PRESENTATION: We present a case of late postpartum eclampsia, initially diagnosed as right-sided heart failure, 10 days postpartum.Two days after the delivery she developed mild swelling of both feet, progressive shortness of breath on exertion and orthopnea...
February 16, 2018: Acta Clinica Belgica
https://www.readbyqxmd.com/read/29450487/systolic-blood-pressure-and-outcomes-in-patients-with-heart-failure-with-preserved-ejection-fraction
#5
Apostolos Tsimploulis, Phillip H Lam, Cherinne Arundel, Steven N Singh, Charity J Morgan, Charles Faselis, Prakash Deedwania, Javed Butler, Wilbert S Aronow, Clyde W Yancy, Gregg C Fonarow, Ali Ahmed
Importance: Lower systolic blood pressure (SBP) levels are associated with poor outcomes in patients with heart failure. Less is known about this association in heart failure with preserved ejection fraction (HFpEF). Objective: To determine the associations of SBP levels with mortality and other outcomes in HFpEF. Design, Setting, and Participants: A propensity score-matched observational study of the Medicare-linked Organized Program to Initiate Lifesaving Treatment in Hospitalized Patients with Heart Failure (OPTIMIZE-HF) registry included 25 354 patients who were discharged alive; 8873 (35...
February 14, 2018: JAMA Cardiology
https://www.readbyqxmd.com/read/29449950/impact-of-malnutrition-on-survival-and-healthcare-utilization-in-medicare-beneficiaries-with-diabetes-a-retrospective-cohort-analysis
#6
Naseer Ahmed, Yong Choe, Vikkie A Mustad, Sumita Chakraborty, Scott Goates, Menghua Luo, Jeffrey I Mechanick
Objective: The aim of this study was to examine the impact of pre-existing malnutrition on survival and economic implications in elderly patients with diabetes. Research design and methods: A retrospective observational study was conducted to examine the impact of malnutrition with or without other significant health conditions on survival time and healthcare costs using the Centers for Medicare and Medicaid Services (CMS) data from 1999 to 2014 for beneficiaries with a confirmed first date of initial diagnosis of diabetes (n=15 121 131)...
2018: BMJ Open Diabetes Research & Care
https://www.readbyqxmd.com/read/29449707/modulation-of-cardiac-stem-cell-characteristics-by-metoprolol-in-hypertensive-heart-disease
#7
Sherin Saheera, Ajay Godwin Potnuri, Renuka R Nair
Cardiac stem cells (CSCs) play a vital role in cardiac remodeling. Uncontrolled hypertension leads to cardiac hypertrophy, followed by cardiac failure. Pathological remodeling is associated with enhanced oxidative stress. Decreased cardiac stem cell efficiency is speculated in heart diseases. Maintaining a healthy stem cell population is essential for preventing progressive cardiac remodeling. Some anti-hypertensive drugs are cardioprotective. However, the effect of these drugs on CSCs has not been investigated...
February 15, 2018: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/29449368/immunosuppressive-therapy-improves-both-short-and-long-term-prognosis-in-patients-with-virus-negative-nonfulminant-inflammatory-cardiomyopathy
#8
Jort Merken, Mark Hazebroek, Pieter Van Paassen, Job Verdonschot, Vanessa Van Empel, Christian Knackstedt, Myrurgia Abdul Hamid, Michael Seiler, Julian Kolb, Philipp Hoermann, Christian Ensinger, Hans-Peter Brunner-La Rocca, Gerhard Poelzl, Stephane Heymans
BACKGROUND: Inflammatory cardiomyopathy (infl-CMP) is characterized by increased cardiac inflammation in the absence of viruses, ischemia, valvular disease, or other apparent causes. Studies addressing the efficacy of immunosuppressive therapy in patients with infl-CMP are sparse. This study retrospectively investigates whether immunosuppressive agents on top of heart failure therapy according to current guidelines improves cardiac function and long-term outcome in patients with infl-CMP...
February 2018: Circulation. Heart Failure
https://www.readbyqxmd.com/read/29449364/diabetic-cardiomyopathy-an-update-of-mechanisms-contributing-to-this-clinical-entity
#9
REVIEW
Guanghong Jia, Michael A Hill, James R Sowers
Heart failure and related morbidity and mortality are increasing at an alarming rate, in large part, because of increases in aging, obesity, and diabetes mellitus. The clinical outcomes associated with heart failure are considerably worse for patients with diabetes mellitus than for those without diabetes mellitus. In people with diabetes mellitus, the presence of myocardial dysfunction in the absence of overt clinical coronary artery disease, valvular disease, and other conventional cardiovascular risk factors, such as hypertension and dyslipidemia, has led to the descriptive terminology, diabetic cardiomyopathy...
February 16, 2018: Circulation Research
https://www.readbyqxmd.com/read/29449079/cost-effectiveness-of-ivabradine-in-the-treatment-of-chronic-heart-failure
#10
Michael A Adena, Gary Hamann, Andrew P Sindone
BACKGROUND: In the Systolic Heart failure treatment with the I f inhibitor Trial (SHIFT) randomised placebo-controlled trial, ivabradine was shown to reduce hospital admissions for worsening heart failure (HF) and deaths due to HF in patients with symptomatic systolic HF and an elevated resting heart rate (HR). This analysis evaluates the cost effectiveness of adding ivabradine to optimal standard HF treatment in patients with a HR≥77 bpm. METHODS: A Markov model was developed to assess the impact of ivabradine on mean survival and quality of life over a patient's lifetime (10 years)...
February 8, 2018: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/29447958/serelaxin-as-a-novel-therapeutic-opposing-fibrosis-and-contraction-in-lung-diseases
#11
REVIEW
Maggie Lam, Simon G Royce, Chrishan S Samuel, Jane E Bourke
The most common therapies for asthma and other chronic lung diseases are anti-inflammatory agents and bronchodilators. While these drugs oppose disease symptoms, they do not reverse established structural changes in the airways and their therapeutic efficacy is reduced with increasing disease severity. The peptide hormone, relaxin, is a Relaxin Family Peptide Receptor 1 (RXFP1) receptor agonist with unique combined effects in the lung that differentiates it from these existing therapies. Relaxin has previously been reported to have cardioprotective effects in acute heart failure as well anti-fibrotic actions in several organs...
February 12, 2018: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29447854/risk-factors-associated-complications-for-postoperative-urinary-retention-after-lumbar-surgery-for-lumbar-spinal-stenosis
#12
Joshua L Golubovsky, Haariss Ilyas, Jinxiao Chen, Joseph E Tanenbaum, Thomas E Mroz, Michael P Steinmetz
BACKGROUND CONTEXT: Postoperative Urinary Retention (POUR) is a very common post-operative complication of all surgeries (5 - 70%) that may lead to complications such as urinary tract infection (UTI), bladder over-distention, autonomic dysregulation, and increased postoperative length of stay (LOS). Within the field of spine surgery, the reported incidence of POUR is highly variable (5.6 - 38%). Lack of clear stratification of surgical level, spinal pathology, and inadequate sample size is a major limitation of available studies concerning POUR following spine surgery that may lead to inconsistency in the incidence of POUR and the ability to model its occurrence and consequences...
February 12, 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29447789/comprehensive-electrocardiogram-to-device-time-for-primary-percutaneous-coronary-intervention-in-st-segment-elevation-myocardial-infarction-a-report-from-the-american-heart-association-mission-lifeline-program
#13
Jay S Shavadia, William French, Anne S Hellkamp, Laine Thomas, Eric R Bates, Steven V Manoukian, Michael C Kontos, Robert Suter, Timothy D Henry, Harold L Dauerman, Matthew T Roe
BACKGROUND: Assessing hospital-related network-level primary percutaneous coronary intervention (PCI) performance for ST-segment elevation myocardial infarction (STEMI) is challenging due to differential time-to-treatment metrics based on location of diagnostic electrocardiogram (ECG) for STEMI. METHODS: STEMI patients undergoing primary PCI at 588 PCI-capable hospitals in AHA Mission: Lifeline (2008-2013) were categorized by initial STEMI identification location: PCI-capable hospitals (Group 1); pre-hospital setting (Group 2); and non-PCI-capable hospitals (Group 3)...
March 2018: American Heart Journal
https://www.readbyqxmd.com/read/29447430/aucubin-protects-against-pressure-overload-induced-cardiac-remodelling-via-%C3%AE-3-ar-nnos-cascades
#14
Qing-Qing Wu, Yang- Xiao, Ming-Xia Duan, Yuan Yuan, Xiao-Han Jiang, Zheng Yang, Hai-Han Liao, Wei Deng, Qi-Zhu Tang
BACKGROUND AND PURPOSE: Aucubin, the predominant component of Eucommia ulmoides Oliv., plays an indispensable role in regulating oxidative stress. Considering that oxidative stress has previously been demonstrated to contribute to acute and chronic myocardial injury, we tested the effects of aucubin on cardiac remodelling and heart failure. EXPERIMENTAL APPROACH: In the first set of experiments, H9c2 cardiomyocytes and neonatal rat cardiomyocytes pre-treated with aucubin (1, 3 10, 25, 50 μM) were challenged with phenylephrine...
February 15, 2018: British Journal of Pharmacology
https://www.readbyqxmd.com/read/29447225/low-apolipoprotein-a-i-levels-in-friedreich-s-ataxia-and-in-frataxin-deficient-cells-implications-for-therapy
#15
QingQing Wang, Lili Guo, Cassandra J Strawser, Lauren A Hauser, Wei-Ting Hwang, Nathaniel W Snyder, David R Lynch, Clementina Mesaros, Ian A Blair
Friedreich's ataxia (FA) is an autosomal recessive neurodegenerative disorder, which results primarily from reduced expression of the mitochondrial protein frataxin. FA has an estimated prevalence of one in 50,000 in the population, making it the most common hereditary ataxia. Paradoxically, mortality arises most frequently from cardiomyopathy and cardiac failure rather than from neurological effects. Decreased high-density lipoprotein (HDL) and apolipoprotein A-I (ApoA-l) levels in the general population are associated with an increased risk of mortality from cardiomyopathy and heart failure...
2018: PloS One
https://www.readbyqxmd.com/read/29445539/the-clinical-usefulness-of-a-self-administered-questionnaire-for-sleep-disordered-breathing-in-patients-with-neuromuscular-disease
#16
Cathy Zhang, Michelle Ramsay, Panagis Drakatos, Joerg Steier
Background: Patients with neuromuscular disease (NMD) are at risk of developing sleep-disordered breathing (SDB) with hypercapnic respiratory failure. We hypothesised that a self-administered questionnaire (SiNQ-5 scores) may be useful to assess patients who are established on treatment for NMD with SDB. Methods: Patients attending a tertiary referral centre filled in the SiNQ-5 (range 0-10 points, lower scores indicating fewer symptoms). The questionnaire contains five questions related to breathlessness, sleep and posture...
January 2018: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29445001/interventional-treatment-of-severe-tricuspid-regurgitation-early-clinical-experience-in-a-multicenter-observational-first-in-man-study
#17
Alexander Lauten, Hans R Figulla, Axel Unbehaun, Neil Fam, Joachim Schofer, Torsten Doenst, Joerg Hausleiter, Marcus Franz, Christian Jung, Henryk Dreger, David Leistner, Brunilda Alushi, Anja Stundl, Ulf Landmesser, Volkmar Falk, Karl Stangl, Michael Laule
BACKGROUND: Transcatheter caval valve implantation is under evaluation as a treatment option for inoperable patients with severe tricuspid regurgitation (TR). The procedure involves the catheter-based implantation of bioprosthetic valves in the inferior vena cava and superior vena cava to treat symptoms associated with TR. This study is the first to evaluate the feasibility, safety, and efficacy of this interventional concept. METHODS AND RESULTS: Twenty-five patients (mean age, 73...
February 2018: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/29444988/nmda-type-glutamate-receptor-activation-promotes-vascular-remodeling-and-pulmonary-arterial-hypertension
#18
Sébastien J Dumas, Gilles Bru-Mercier, Audrey Courboulin, Marceau Quatredeniers, Catherine Rücker-Martin, Fabrice Antigny, Morad K Nakhleh, Benoit Ranchoux, Elodie Gouadon, Maria-Candida Vinhas, Matthieu Vocelle, Nicolas Raymond, Peter Dorfmüller, Elie Fadel, Frédéric Perros, Marc Humbert, Sylvia Cohen-Kaminsky
Background -Excessive proliferation and apoptosis resistance in pulmonary vascular cells underlie vascular remodeling in pulmonary arterial hypertension (PAH). Specific treatments for PAH exist, mostly targeting endothelial dysfunction, but high pulmonary arterial pressure still causes heart failure and death. Pulmonary vascular remodeling may be driven by metabolic reprogramming of vascular cells to increase glutaminolysis and glutamate production. The N-methyl-D-aspartate receptor (NMDAR), a major neuronal glutamate receptor, is also expressed on vascular cells, but its role in PAH is unknown...
February 14, 2018: Circulation
https://www.readbyqxmd.com/read/29444597/an-experimental-model-for-hypertensive-crises-emergencies-long-term-high-fat-diet-followed-by-acute-vasoconstriction-stress-on-spontaneously-hypertensive-rats
#19
Hong Liu, Wei-Wei Su, Chao-Feng Long, Wei-Jian Zhang, Pei-Bo Li, Zhong Wu, Yin-Yin Liao, Xuan Zeng, Tao-Bin Chen, Yu-Ying Zheng, Zeng-Hao Yan, Cong Bi, Hong-Liang Yao
Currently, the prevention and treatment of hypertensive crises especially when it occurs with serious adverse outcomes have led to worldwide controversy. Despite of clinical possibilities of multiple agents, clinical failures still occur frequently. Therefore, early evaluations and observations of different therapies on appropriate animals should be emphasized. In the present study, an animal model for hypertensive crises emergencies was firstly established and experimentally testified. Five-month-male spontaneously hypertensive rat was consecutively fed with 60%-Kcal fat diet for four, six, and eight weeks with body weight and blood pressure monitored every two weeks, and then followed by an acute vasoconstriction stress of 5-min ice-bath treatment in the 4-h time interval of two adrenaline injections (0...
January 1, 2018: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/29444294/prognosis-of-adult-obstructive-hypertrophic-cardiomyopathy-patients-with-different-morphological-types-after-surgical-myectomy
#20
Bing Tang, Yunhu Song, Hao Cui, Keshan Ji, Qinjun Yu, Changsheng Zhu, Shihua Zhao, Shuiyun Wang
OBJECTIVES: This study aims to assess the impact of morphological type on the prognosis of obstructive hypertrophic cardiomyopathy patients who underwent myectomy. METHODS: We recruited 469 obstructive hypertrophic cardiomyopathy patients refractory to medicinal treatment who have undergone surgical myectomy at a nationwide referral centre. All patients were divided into 3 groups based on the morphological classification of left ventricular hypertrophy and were followed up by telephone every year...
February 12, 2018: European Journal of Cardio-thoracic Surgery
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