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Critical echocardiography

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https://www.readbyqxmd.com/read/29351144/cardiac-dysfunction-in-critical-illness
#1
Allison Dalton, Sajid Shahul
PURPOSE OF REVIEW: Sepsis and septic shock are prevalent conditions that are likely to increase in prevalence in the future. Given the high mortality and morbidity associated with sepsis and sepsis-induced cardiac dysfunction, we must continue to make advances in knowledge of the complex physiologic interactions and how we may target specific mediators for potential therapeutic options in the future. RECENT FINDINGS: Multiple biomarkers have been discovered, which when assayed in sepsis-induced cardiomyopathy predict morbidity and mortality...
January 17, 2018: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/29340858/critical-care-echocardiography-a-certification-pathway-for-advanced-users
#2
EDITORIAL
Scott J Millington, Alberto Goffi, Robert T Arntfield
No abstract text is available yet for this article.
January 16, 2018: Canadian Journal of Anaesthesia, Journal Canadien D'anesthésie
https://www.readbyqxmd.com/read/29338148/novel-applications-of-bedside-monitoring-to-plumb-patient-hemodynamic-state-and-response-to-therapy
#3
Fabio Guarracino, Pietro Bertini, Michael R Pinsky
Hemodynamic monitoring is essential during the treatment of the critically ill in order to address the hemodynamic alterations and assess the response to treatment. Traditionally classified causes of shock and underlying pathophysiological mechanisms are often neglected by resuscitative strategies included in the guidelines. Most of hemodynamic management focuses on the ability to early recognise patients susceptible to increase cardiac output (CO) and mean arterial pressure (MAP) after a defined fluid challenge by eliciting Starling's law of the heart, and less is known of the ones presenting in shock and not volume responsive...
January 16, 2018: Minerva Anestesiologica
https://www.readbyqxmd.com/read/29337842/perioperative-coagulation-management-in-liver-transplant-recipients
#4
Dmitri Bezinover, Daniel Dirkmann, James Findlay, Cosmin Guta, Matthias Hartmann, Ramona Nicolau-Raducu, Ahmed M Mukhtar, Marina Moguilevitch, Evan Pivalizza, David Rosenfeld, Fuat Saner, Christopher Wray, Gebhardt Wagener, James West
We review contemporary coagulation management for patients undergoing liver transplantation. A better understanding of the complex physiologic changes that occur in patients with end-stage liver disease has resulted in significant advances in anesthetic and coagulation management. A group of internationally recognized experts have critically evaluated current approaches for coagulopathy detection and management. Strategies for blood component and factor replacement have been evaluated and recommended therapies proposed...
January 15, 2018: Transplantation
https://www.readbyqxmd.com/read/29337094/vitamin-d-attenuates-pressure-overload-induced-cardiac-remodeling-and-dysfunction-in-mice
#5
Liang Zhang, Xiao Yan, Jie Bai, Tesfaldet Habtemariam Hidru, Qing-Shan Wang, Hui-Hua Li
Vitamin D (VD) and its analogues play critical roles in metabolic and cardiovascular diseases. Recent studies have demonstrated that VD exerts a protective role in cardiovascular diseases. However, the beneficial effect of VD on pressure overload-induced cardiac remodeling and dysfunction and its underlying mechanisms are not fully elucidated. In this study, cardiac dysfunction and hypertrophic remodeling in mice were induced by pressure overload. Cardiac function was evaluated by echocardiography, and myocardial histology was detected by H&E and Masson's trichrome staining...
January 11, 2018: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29331956/adenosine-production-by-biomaterial-supported-mesenchymal-stromal-cells-reduces-the-innate-inflammatory-response-in-myocardial-ischemia-reperfusion-injury
#6
Eric Y Shin, Lanfang Wang, Marina Zemskova, Juline Deppen, Kai Xu, Frederick Strobel, Andrés J García, Rabindra Tirouvanziam, Rebecca D Levit
BACKGROUND: During myocardial ischemia/reperfusion (MI/R) injury, there is extensive release of immunogenic metabolites that activate cells of the innate immune system. These include ATP and AMP, which upregulate chemotaxis, migration, and effector function of early infiltrating inflammatory cells. These cells subsequently drive further tissue devitalization. Mesenchymal stromal cells (MSCs) are a potential treatment modality for MI/R because of their powerful anti-inflammatory capabilities; however, the manner in which they regulate the acute inflammatory milieu requires further elucidation...
January 13, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29312752/adult-echocardiographic-nomograms-overview-critical-review-and-creation-of-a-software-for-automatic-fast-and-easy-calculation-of-normal-values
#7
REVIEW
Massimiliano Cantinotti, Raffaele Giordano, Marco Paterni, Daniel Saura, Marco Scalese, Eliana Franchi, Nadia Assanta, Martin Koestenberg, Raluca Dulgheru, Tadafumi Sugimoto, Anne Bernard, Luis Caballero, Patrizio Lancellotti
There is a crescent interest on normal adult echocardiographic values and the introduction of new deformation imaging and 3D parameters pose the issue of normative data. A multitude of nomograms has been recently published, however data are often fragmentary, difficult to find, and their strengths/limitations have been never evaluated. AIMS: (I) to provide a review of current echocardiographic nomograms; (II) to generate a tool for easy and fast access to these data. A literature search was conducted accessing the National Library of Medicine using the keywords: 2D/3D echocardiography, strain, left/right ventricle, atrial, mitral/tricuspid valve, aorta, reference values/nomograms/normal values...
December 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29304157/conditional-deletion-of-rb1-in-the-tie2-lineage-leads-to-aortic-valve-regurgitation
#8
Marina Freytsis, Lauren Baugh, Zhiyi Liu, Irene Georgakoudi, Philip W Hinds, Lauren D Black, Gordon S Huggins
OBJECTIVE: Aortic valve disease is a complex process characterized by valve interstitial cell activation, disruption of the extracellular matrix culminating in valve mineralization occurring over many years. We explored the function of the retinoblastoma protein (pRb) in aortic valve disease, given its critical role in mesenchymal cell differentiation including bone development and mineralization. APPROACH AND RESULTS: We generated a mouse model of conditional pRb knockout (cKO) in the aortic valve regulated by Tie2-Cre-mediated excision of floxed RB1 alleles...
2018: PloS One
https://www.readbyqxmd.com/read/29303901/certification-in-critical-care-echocardiography-the-evolution-of-an-emerging-picu-practice
#9
Erik Su, Bereketeab Haileselassie, Antonio Hernandez, José L Díaz-Gómez
No abstract text is available yet for this article.
January 2018: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/29299707/lupus-myocarditis-receiving-the-rituximab-therapy-a-monocentric-retrospective-study
#10
Chrong-Reen Wang, Yi-Shan Tsai, Wei-Ting Li
Despite high-dose corticosteroids alone or with immunosuppressive agents as the standard therapy in lupus myocarditis (LM), an immune complex-mediated critical setting, such management is still associated with resistant disease and even mortality. A retrospective study was performed for the refractory LM patients treated with rituximab (RTX), a very limited experience in English literatures. A retrospective review of the myocarditis manifestation was carried out in hospitalized Han Chinese patients with SLE from February 2007 to January 2017...
January 3, 2018: Clinical Rheumatology
https://www.readbyqxmd.com/read/29287130/a-brief-history-of-fetal-echocardiography-and-its-impact-on-the-management-of-congenital-heart-disease
#11
Dev Maulik, Navin C Nanda, Devika Maulik, Gustavo Vilchez
Congenital heart disease (CHD), the most common congenital malformation, is associated with adverse outcome. Development of fetal echocardiography has made prenatal diagnosis of CHD a reality, and in the process revolutionized its management. This historical review briefly narrates this development over the decades focusing on the emergence of the primary modalities of fetal echocardiography comprised of the time-motion mode, two-dimensional B-mode, spectral Doppler, color Doppler, and three- and four-dimensional cardiac imaging...
December 2017: Echocardiography
https://www.readbyqxmd.com/read/29283343/cardiac-lesion-mapping-in-vivo-using-intracardiac-myocardial-elastography
#12
Ethan Bunting, Clement Papadacci, Elaine Wan, Vincent Sayseng, Julien Grondin, Elisa E Konofagou
Radio frequency (RF) ablation of the myocardium is used to treat various cardiac arrhythmias. The size, spacing, and transmurality of lesions have been shown to affect the success of the ablation procedure; however, there is currently no method to directly image the size and formation of ablation lesions in real time. Intracardiac myocardial elastography (ME) has been previously used to image the decrease in cardiac strain during systole in the ablated region as a result of the lesion formation. However, the feasibility of imaging multiple lesions and identifying the presence of gaps between lesions has not yet been investigated...
January 2018: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/29260440/frequency-and-prognostic-impact-of-basic-critical-care-echocardiography-abnormalities-in-patients-with-acute-respiratory-distress-syndrome
#13
Kay Choong See, Jeffrey Ng, Wen Ting Siow, Venetia Ong, Jason Phua
BACKGROUND: Among intensive care unit (ICU) patients with acute respiratory distress syndrome (ARDS), apart from acute cor pulmonale (ACP), the frequency and prognostic impact of basic critical care echocardiography (BCCE) abnormalities are not well defined. METHODS: Observational study of patients with ARDS, admitted from September 2012 to May 2014, who underwent BCCE within 48 h of admission to a 20-bed medical ICU. We examined the association of two major BCCE-detected abnormalities (left ventricular ejection fraction < 40% and severe ACP) with ICU/hospital mortality and ICU/hospital length of stay...
December 19, 2017: Annals of Intensive Care
https://www.readbyqxmd.com/read/29243396/bariatric-surgery-induced-cardiac-and-lipidomic-changes-in-obesity-related-heart-failure-with-preserved-ejection-fraction
#14
Deana Mikhalkova, Sujata R Holman, Hui Jiang, Mohammed Saghir, Eric Novak, Andrew R Coggan, Robert O'Connor, Adil Bashir, Ali Jamal, Daniel S Ory, Jean E Schaffer, J Christopher Eagon, Linda R Peterson
OBJECTIVE: To determine the effects of gastric bypass on myocardial lipid deposition and function and the plasma lipidome in women with obesity and heart failure with preserved ejection fraction (HFpEF). METHODS: A primary cohort (N = 12) with HFpEF and obesity underwent echocardiography and magnetic resonance spectroscopy both before and 3 months and 6 months after bariatric surgery. Plasma lipidomic analysis was performed before surgery and 3 months after surgery in the primary cohort and were confirmed in a validation cohort (N = 22)...
December 15, 2017: Obesity
https://www.readbyqxmd.com/read/29229678/epitope-mapping-of-serca2a-identifies-an-antigenic-determinant-that-induces-mainly-atrial-myocarditis-in-a-j-mice
#15
Bharathi Krishnan, Chandirasegaran Massilamany, Rakesh H Basavalingappa, Arunakumar Gangaplara, Rajkumar A Rajasekaran, Muhammad Z Afzal, Vahid Khalilzad-Sharghi, You Zhou, Jean-Jack Riethoven, Shyam S Nandi, Paras K Mishra, Raymond A Sobel, Jennifer L Strande, David Steffen, Jay Reddy
Sarcoplasmic/endoplasmic reticulum Ca2+ adenosine triphosphatase (SERCA)2a, a critical regulator of calcium homeostasis, is known to be decreased in heart failure. Patients with myocarditis or dilated cardiomyopathy develop autoantibodies to SERCA2a suggesting that they may have pathogenetic significance. In this report, we describe epitope mapping analysis of SERCA2a in A/J mice that leads us to make five observations: 1) SERCA2a contains multiple T cell epitopes that induce varying degrees of myocarditis...
December 11, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29229611/opposing-actions-of-fibroblast-and-cardiomyocyte-smad3-signaling-in-the-infarcted-myocardium
#16
Ping Kong, Arti V Shinde, Ya Su, Ilaria Russo, Bijun Chen, Amit Saxena, Simon J Conway, Jonathan M Graff, Nikolaos G Frangogiannis
Background -Transforming Growth Factor (TGF)-βs regulate a wide range of cellular responses by activating Smad-dependent and Smad-independent cascades. In the infarcted heart, Smad3 signaling is activated in both cardiomyocytes and interstitial cells. We hypothesized that cell-specific actions of Smad3 regulate repair and remodeling in the infarcted myocardium. Methods -In order to dissect cell-specific Smad3 actions in myocardial infarction, we generated mice with Smad3 loss in activated fibroblasts, or in cardiomyocytes...
December 11, 2017: Circulation
https://www.readbyqxmd.com/read/29226818/rate-response-programming-tailored-to%C3%A2-the-force-frequency-relationship-improves-exercise-tolerance-in-chronic-heart-failure
#17
John Gierula, Maria F Paton, Judith E Lowry, Haqeel A Jamil, Rowenna Byrom, Michael Drozd, Jack O Garnham, Richard M Cubbon, David A Cairns, Mark T Kearney, Klaus K Witte
OBJECTIVES: This study sought to examine whether the heart rate (HR) at which the force-frequency relationship (FFR) slope peaks (critical HR) could be used to tailor HR response in chronic heart failure (CHF) patients with cardiac pacemakers and whether this favorably influences exercise capacity. BACKGROUND: CHF secondary to left ventricular (LV) systolic dysfunction is characterized by blunting of the positive relationship between HR and LV contractility known as the FFR...
November 27, 2017: JACC. Heart Failure
https://www.readbyqxmd.com/read/29223726/computed-tomography-measurement-of-the-left-atrial-appendage-for-optimal-sizing-of-the-watchman-device
#18
Bo Xu, Jorge Betancor, Kimi Sato, Serge Harb, Karim Abdur Rehman, Kunal Patel, Arnav Kumar, Paul C Cremer, Wael Jaber, L Leonardo Rodriguez, Paul Schoenhagen, Oussama Wazni
INTRODUCTION: Percutaneous left atrial appendage (LAA) occlusion is an emerging treatment option for patients with non-valvular atrial fibrillation who cannot tolerate oral anticoagulation. The Watchman device (Boston Scientific Corporation, Natick, MA, USA) is deployed at the ostium of the LAA, and an appropriately sized device is critical for successful occlusion. However, standardized imaging protocols for device sizing have not been established. OBJECTIVES: We investigated the clinical utility of a standardized imaging protocol, with pre-procedural multi-detector cardiac computed tomography (MDCT), and intra-procedural transesophageal echocardiography (TEE), for Watchman device sizing...
December 5, 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29205940/relation-of-serum-adma-apelin-13-and-lox-1-levels-with-inflammatory-and-echocardiographic-parameters-in-hemodialysis-patients
#19
Ibrahim Dogan, Tolga Dogan, Mucahit Yetim, Huseyin Kayadibi, Mehmet B Yilmaz, Baris Eser, Macit Kalcik, Yusuf Karavelioglu
Cardiovascular diseases are the leading causes of mortality in patients with chronic kidney disease. Nitric oxide has a critical role in both endothelial dysfunction and the atherosclerosis process. We aimed to investigate the relationships between serum asymmetric dimethyl arginine (ADMA), LOX-1, and Apelin-13 levels, which are known to act over nitric oxide with endothelial dysfunction and cardiac morphology as well as with each other in hemodialysis patients. The study comprised a total of 120 patients (53 females and 67 males) receiving hemodialysis three times a week for at least 6 months and an age-gender matched control group (55 females and 58 males)...
December 4, 2017: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/29202259/bedside-lung-ultrasound-in-the-care-of-the-critically-ill
#20
Máté Rudas, Sam Orde, Marek Nalos
OBJECTIVE: To describe the technique and review the utility of bedside lung ultrasound in acute care. SUMMARY: Lung ultrasound is a useful point-of-care investigation in acute care, especially in patients with dyspnoea or haemodynamic instability. Although normal lung parenchyma is not accessible to ultrasound, distinctive artefacts arising from parietal and visceral pleura indirectly imply the presence of normal lung. As aeration of lung tissue reduces with disease process, visual assessment of several pathologic entities by ultrasound becomes possible...
December 2017: Critical Care and Resuscitation: Journal of the Australasian Academy of Critical Care Medicine
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