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Right heart failure

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https://www.readbyqxmd.com/read/28822963/%C3%AE-1a-subtype-adrenergic-agonist-therapy-for-failing-right-ventricle
#1
Patrick M Cowley, Guan-Ying Wang, Sunil K Joshi, Philip M Swigart, David H Lovett, Paul C Simpson, Anthony J Baker
Failure of the right ventricle (RV) is a serious disease with a poor prognosis and limited treatment options. Signaling by α1-adrenergic receptors (α1-ARs), in particular the α1A-subtype, mediate cardioprotective effects in multiple heart failure models. Recent studies show that chronic treatment with the α1A-subtype agonist A61603 improves function and survival in a model of LV failure. The goal of this study was to determine if chronic A61603 treatment is beneficial in a RV failure model. We used tracheal instillation of the fibrogenic antibiotic bleomycin in mice to induce pulmonary fibrosis, pulmonary hypertension, and RV failure within 2 wk...
August 19, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28820558/young-patient-with-advanced-heart-failure-no-longer-a-candidate-for-heart-transplantation-after-mitraclip%C3%A3-%C3%A2-procedure
#2
Cosmo Godino, Andrea Scotti, Eustachio Agricola, Carlo A Pivato, Mauro Chiarito, Stefano Stella, Massimo Maccherini, Alberto Margonato, Antonio Colombo
In Europe, mitral regurgitation (MR) is the second most common form of valvular heart disease requiring surgical treatment. The case is presented of a 36-year-old woman with end-stage heart failure secondary to chemotherapy-induced cardiotoxicity, complicated by severe MR. She was listed for heart transplantation and underwent percutaneous MitraClip® implantation in order to preclude further clinical deterioration while awaiting a suitable donor. The one-year follow-up showed a strong improvement of symptoms and mostly reverse left ventricular remodelling, with consequent removal from the heart transplantation list...
March 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28818352/longitudinal-sequential-biventricular-assessment-in-adults-with-transposition-of-the-great-arteries-and-relationship-with-adverse-outcomes
#3
M Riahi, A Claman, M Kiess, M Orgad, D Human, S Chakrabarti, J Leipsic, J Grewal
BACKGROUND: In a cohort of congenitally corrected transposition of the great arteries (cc-TGA) and transposition of the great arteries after atrial switch procedure (d-TGA) the study objectives were: 1) to assess the change of quantitative systemic right ventricle (sRV) parameters over time and; 2) to examine the relationship of quantitative sRV parameters with adverse clinical outcomes. METHODS AND RESULTS: Single-center cohort study that included 49 (39%) cc-TGA and 76 (61%) d-TGA patients >18years who had at least one MUGA sRV assessment, 18/39 had more than one respectively...
August 5, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28817814/cardiac-computed-tomography-angiographic-findings-as-predictors-of-late-heart-failure-in-an-asymptomatic-diabetic-cohort-an-8-year-prospective-follow-up-study
#4
David A Halon, Jubran Ayman, Ronen Rubinshtein, Barak Zafrir, Mali Azencot, Basil S Lewis
OBJECTIVES: Predictive models for heart failure (HF) in heterogeneous populations have had limited success. We examined cardiac computed tomography angiography (CTA) predictors of HF or cardiovascular death (HF-CVD) in a prospective study of asymptomatic diabetics undergoing baseline assessment by CTA. METHODS: The subjects (n = 735, aged 55-74 years, 51.2% women) had no clinical history of cardiovascular disease at study entry. Coronary artery calcium (CAC) score, CTA-defined coronary atherosclerosis, cardiac chamber volumes, and clinical data were collected and late outcome events recorded over 8...
August 18, 2017: Cardiology
https://www.readbyqxmd.com/read/28816096/management-of-severe-pulmonary-hemorrhage-in-a-neonate-on-veno-arterial-ecmo-by-the-temporary-clamping-of-the-endotracheal-tube-a-case-report
#5
Vaclav Vobruba, Tomas Grus, Frantisek Mlejnsky, Jan Belohlavek, Jan Hridel, Lukas Lambert
Severe pulmonary hemorrhage in the newborn is an infrequent, but life-threatening, event. A newborn with persistent pulmonary hypertension and a large persistent ductus arteriosus and open foramen ovale presented with hypoxemia and progressive right heart failure shortly after birth, requiring veno-arterial extracorporeal membrane oxygenation (ECMO) support. Twenty minutes after the initiation of ECMO, the patient developed severe pulmonary hemorrhage refractory to conventional treatment. As a last resort, the endotracheal tube was clamped...
August 1, 2017: Perfusion
https://www.readbyqxmd.com/read/28815593/hypothalamic-neurons-out-of-control
#6
Quentin J Pittman
There is now considerable evidence that a number of pathophysiological conditions, including heart failure (HF), lead to excessive secretion into the blood of the neurohypophysial hormone, arginine vasopressin (AVP). This article is protected by copyright. All rights reserved.
August 17, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28814664/pulmonary-arterial-hypertension-treatment-with-carvedilol-for-heart-failure-a-randomized-controlled-trial
#7
Samar Farha, Didem Saygin, Margaret M Park, Hoi I Cheong, Kewal Asosingh, Suzy Aa Comhair, Olivia R Stephens, Emir C Roach, Jacqueline Sharp, Kristin B Highland, Frank P DiFilippo, Donald R Neumann, W H Wilson Tang, Serpil C Erzurum
BACKGROUND: Right-sided heart failure is the leading cause of death in pulmonary arterial hypertension (PAH). Similar to left heart failure, sympathetic overactivation and β-adrenoreceptor (βAR) abnormalities are found in PAH. Based on successful therapy of left heart failure with β-blockade, the safety and benefits of the nonselective β-blocker/vasodilator carvedilol were evaluated in PAH. METHODS: PAH Treatment with Carvedilol for Heart Failure (PAHTCH) is a single-center, double-blind, randomized, controlled trial...
August 17, 2017: JCI Insight
https://www.readbyqxmd.com/read/28813731/a-case-of-fulminant-hepatic-failure-secondary-to-congestive-heart-failure-without-evidence-of-acute-cardiac-decompensation
#8
Kalyan Wagle, Oluwaseun A Akinseye, Prakash Shrestha, Madhuri Chandnani, Raiko Munankarmi, Vivian Ripin, Jimmy Yee
There are so far only a few reported cases of acute fulminant hepatic failure resulting from acute cardiomyopathy. This is a rare occurrence, especially in patients that do not exhibit any signs and symptoms of acute cardiac decompensation. We report a case of fulminant liver failure with nondiagnostic work up for the common causes of liver failure. This patient had concurrent history of congestive heart failure, but did not have acute decompensation. Right upper quadrant sonogram revealed hepatomegaly of 15 cm, trace amount of perihepatic ascites, pericholecystic fluid, and also thickened edematous gallbladder wall with no stones, no common bile duct stones, and no portal vein thrombosis...
April 2017: South Dakota Medicine: the Journal of the South Dakota State Medical Association
https://www.readbyqxmd.com/read/28810603/intratracheal-administration-of-isosorbide-dinitrate-improves-pulmonary-artery-pressure-and-ventricular-remodeling-in-a-rat-model-of-heart-failure-following-myocardial-infarction
#9
Xuelian Wang, Qingqing Xu, Tianqi Li, Yaocong Rong, Weilin Hong, Yan Huang, Xingui Guo
Pulmonary hypertension due to left heart disease is associated with poor outcomes. This study investigated the beneficial effects of isosorbide dinitrate (ISDN) inhalation on pulmonary pressure and ventricular remodeling in a rat model of heart failure (HF) following myocardial infarction (MI). To assess the effect of ISDN on pulmonary pressure, 20 male Sprague-Dawley (SD) rats were randomized to four groups: Normal saline (NS) 1 ml/kg, ISDN 1 mg/kg, NS 3 ml/kg or ISDN 3 mg/kg following coronary ligation. Assessments included pulmonary and systemic artery pressure alterations, lung weight/body weight and plasma nitric oxide (NO) concentration...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28808947/the-sydney-heart-bank-improving-translational-research-while-eliminating-or-reducing-the-use-of-animal-models-of-human-heart-disease
#10
REVIEW
C G Dos Remedios, S P Lal, A Li, J McNamara, A Keogh, P S Macdonald, R Cooke, E Ehler, R Knöll, S B Marston, J Stelzer, H Granzier, C Bezzina, S van Dijk, F De Man, G J M Stienen, J Odeberg, F Pontén, W Linke, J van der Velden
The Sydney Heart Bank (SHB) is one of the largest human heart tissue banks in existence. Its mission is to provide high-quality human heart tissue for research into the molecular basis of human heart failure by working collaboratively with experts in this field. We argue that, by comparing tissues from failing human hearts with age-matched non-failing healthy donor hearts, the results will be more relevant than research using animal models, particularly if their physiology is very different from humans. Tissue from heart surgery must generally be used soon after collection or it significantly deteriorates...
August 14, 2017: Biophysical Reviews
https://www.readbyqxmd.com/read/28807581/right-heart-function-during-and-after-community-acquired-pneumonia-in-adults
#11
Kevin E Boczar, Vicente F Corrales-Medina, Ian G Burwash, Julio A Chirinos, Girish Dwivedi
BACKGROUND: New-onset or worsening heart failure is the most common extra-pulmonary complication of community-acquired pneumonia (CAP) during the first 30 days after diagnosis. METHODS: We evaluated the changes in the right ventricular function amongst adult CAP survivors from the time of acute infection to its resolution. We performed comprehensive transthoracic echocardiographic examinations to assess right heart function during the acute illness and the convalescent period (four to six weeks after hospital discharge)...
July 27, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28805292/incidence-and-outcomes-of-primary-central-nervous-system-lymphoma-in-solid-organ-transplant-recipients
#12
Parag Mahale, Meredith S Shiels, Charles F Lynch, Eric A Engels
Primary central nervous system lymphoma (PCNSL) risk is greatly increased in immunosuppressed HIV-infected people. Using data from the United States transplant registry linked with 17 cancer registries (1987-2014), we studied PCNSL and systemic non-Hodgkin lymphoma (NHL) in 288,029 solid organ transplant recipients. Transplant recipients had elevated incidence for PCNSL compared with the general population (standardized incidence ratio=65.1; N=168), and this elevation was stronger than for systemic NHL (standardized incidence ratio=11...
August 14, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28805026/correlation-of-6-minute-walk-test-with-left-ventricular-function-and-quality-of-life-in-heart-failure-due-to-chagas-disease
#13
Mayara da Costa Chambela, Mauro Felippe Felix Mediano, Roberto Rodrigues Ferreira, André Miguel Japiassú, Mariana Caldas Waghabi, Gilberto Marcelo Sperandio da Silva, Roberto Magalhães Saraiva
OBJECTIVES: To evaluate the correlation of the total distance walked during the six-minute walk test (6-MWT) with left ventricular function and quality of life in patients with Chagas Disease (ChD) complicated by heart failure. METHODS: This cross-sectional study of adult patients with ChD and heart failure diagnosed based on Framingham criteria. 6MWT was performed following international guidelines. New York Heart Association functional class, brain natriuretic peptide (BNP) serum levels, echocardiographic parameters, and quality of life (SF-36 and MLHFQ questionnaires) were determined and their correlation with the distance covered at the 6MWT was tested...
August 14, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28801688/-tricuspid-valve-regurgitation-indications-and-operative-techniques
#14
R Lange, N Piazza, T Günther
Functional tricuspid valve (TV) regurgitation secondary to left heart disease (e.g. mitral insufficiency and stenosis) is observed in 75% of the patients with TV regurgitation and is thus the most common etiology; therefore, the majority of patients who require TV surgery, undergo concomitant mitral and/or aortic valve surgery. Uncorrected moderate and severe TV regurgitation may persist or even worsen after mitral valve surgery, leading to progressive heart failure and death. Patients with moderate to severe TV regurgitation show a 3-year survival rate of 40%...
August 11, 2017: Herz
https://www.readbyqxmd.com/read/28801528/epidemiology-and-natural-history-of-the-cardiorenal-syndromes-in-a-cohort-with-echocardiography
#15
Thomas A Mavrakanas, Aisha Khattak, Karandeep Singh, David M Charytan
BACKGROUND AND OBJECTIVES: It is unknown whether echocardiographic parameters are independently associated with the cardiorenal syndrome. No direct comparison of the natural history of various cardiorenal syndrome types has been conducted. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: Our retrospective cohort study enrolled adult patients with at least one transthoracic echocardiography between 2004 and 2014 at a single health care system. Information on comorbidities was extracted using condition-specific diagnostic codes...
August 11, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28801203/echocardiographic-prediction-of-cardiac-resynchronization-therapy-response-requires-analysis-of-both-mechanical-dyssynchrony-and-right-ventricular-function-a-combined-analysis-of%C3%A2-patient-data-and-computer-simulations
#16
Wouter M van Everdingen, John Walmsley, Maarten J Cramer, Iris van Hagen, Bart W L De Boeck, Mathias Meine, Tammo Delhaas, Pieter A Doevendans, Frits W Prinzen, Joost Lumens, Geert E Leenders
BACKGROUND: Pronounced echocardiographically measured mechanical dyssynchrony is a positive predictor of response to cardiac resynchronization therapy (CRT), whereas right ventricular (RV) dysfunction is a negative predictor. The aim of this study was to investigate how RV dysfunction influences the association between mechanical dyssynchrony and left ventricular (LV) volumetric remodeling following CRT. METHODS: One hundred twenty-two CRT candidates (mean LV ejection fraction, 19 ± 6%; mean QRS width, 168 ± 21 msec) were prospectively enrolled and underwent echocardiography before and 6 months after CRT...
August 8, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28801076/early-development-of-right-ventricular-ischemic-lesions-in-a-novel-large-animal-model-of-acute-right-heart-failure-in-chronic-thromboembolic-pulmonary-hypertension
#17
David Boulate, Jennifer Arthur Ataam, Andrew J Connolly, Genevieve Giraldeau, Myriam Amsallem, Benoit Decante, Lilia Lamrani, Elie Fadel, Peter Dorfmuller, Frederic Perros, Francois Haddad, Olaf Mercier
BACKGROUND: Our aim was to develop a model of acute right heart failure (ARHF) in the setting of pulmonary hypertension and to characterize acute right ventricular lesions that develop early after hemodynamic restoration. METHODS AND RESULTS: We used a described piglet model of chronic pulmonary hypertension (cPH) induced by pulmonary artery occlusions. We induced ARHF in animals with cPH (ARHF-cPH group, n=9) by volume loading and iterative acute pulmonary embolisms until hemodynamic compromise followed by dobutamine infusion for hemodynamic restoration prior to sacrifice for right ventricular tissue evaluation...
August 8, 2017: Journal of Cardiac Failure
https://www.readbyqxmd.com/read/28800891/concomitant-mitral-repair-and-continuous-flow-left-ventricular-assist-devices-is-it-warranted
#18
Shinichi Fukuhara, Koji Takeda, Codruta Chiuzan, Jiho Han, Paul A Kurlansky, Hiroo Takayama, Yoshifumi Naka
BACKGROUND: Pre-existing mitral pathology is common in patients undergoing continuous-flow left ventricular assist device implantation. We sought to investigate whether concurrent mitral repair confers any advantage. METHODS: From March 2004 to October 2014, 374 patients received a continuous-flow left ventricular assist device. Of these, a total of 115 patients with pre-existing mitral regurgitation (MR) greater than moderate were identified and included in the analysis...
April 22, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28800179/short-term-outcomes-of-atrial-flutter-ablation
#19
Byomesh Tripathi, Shilpkumar Arora, Abhishek Mishra, Vishwa Reddy Kundoor, Sopan Lahewala, Varun Kumar, Mahek Shah, Dhairya Lakhani, Harshil Shah, Nilay V Patel, Nileshkumar J Patel, Mihir Dave, Abhishek Deshmukh, Sattur Sudhakar, Radha Gopalan
BACKGROUND: Understanding the factors associated with early readmissions following atrial flutter (AFL) ablation is critical to reduce the cost and improving the quality of life in AFL patients. METHOD: The study cohort was derived from the National readmission database 2013-14. International Classification of Diseases, 9th Revision (ICD-9-CM) diagnosis code 427.32 and procedure code 37.34 were used to identify AFL and catheter ablation respectively. The primary and secondary outcomes were 90-day readmission and complications including in-hospital mortality...
August 11, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28800178/outcomes-of-catheter-ablation-of-ventricular-tachycardia-with-mechanical-hemodynamic-support-an-analysis-of-the-medicare-database
#20
Arash Aryana, André d'Avila, Christina L Cool, Marc A Miller, Fermin C Garcia, Gregory E Supple, Srinivas R Dukkipati, Dhanunjaya Lakkireddy, T Jared Bunch, Mark R Bowers, Padraig Gearoid O'Neill, Vivek Y Reddy, Francis E Marchlinski
INTRODUCTION: There is a paucity of data in favor of mechanical support during catheter ablation of ventricular tachycardia (VT). This study investigated the outcomes of VT ablation associated with mechanical support using percutaneous ventricular assist device (PVAD) versus intra-aortic balloon pump (IABP). METHODS AND RESULTS: We retrospectively examined the outcomes of patients who underwent VT ablation associated with PVAD versus IABP from 2010-2013, captured by the Medicare Inpatient Standard Analytic File database...
August 11, 2017: Journal of Cardiovascular Electrophysiology
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