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Critical echocardiography

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https://www.readbyqxmd.com/read/28893830/assessment-of-paravalvular-leakage-after-transcatheter-aortic-valve-implantation-add-clinical-signs-to-echocardiographic-data
#1
Corstiaan A den Uil, Mihai Strachinaru, Ben van der Hoven, J Han J Meeder
A 62-year old male with pulmonary fibrosis and aortic valve stenosis underwent TAVI (Corevalve Evolut XL 34 mm) in the build-up for lung transplantation (LuTx). Following post-dilation for a large annular perimeter, moderate paravalvular aortic regurgitation (AR) was observed. After 6 weeks, he was admitted to the ICU with respiratory failure(A). TTE demonstrated residual mild AR (based on a small excentric paravalvular AR jet, <10% circumferential extent, pressure half-time was not reliably measured) and together with borderline elevated NT-pro-BNP, the consultant cardiologist authorized LuTx listing...
September 11, 2017: Echo Research and Practice
https://www.readbyqxmd.com/read/28886842/imaging-assessment-of-the-interatrial-septum-for-transcatheter-atrial-septal-defect-and-patent-foramen-ovale-closure
#2
REVIEW
Mary Z Bechis, David S Rubenson, Matthew J Price
Transcatheter closure of atrial septal defects and patent foramen ovale has become increasingly common with advances in device and imaging technology. The percutaneous approach is now the preferred method of closure when anatomically suitable. Two-dimensional and 3-dimensional echocardiography determines anatomic suitability by characterizing the interatrial defect and its surrounding structures, and is critical for intraprocedural guidance and postprocedure follow-up. This article provides an overview of interatrial anatomy as it pertains to interventional considerations and discusses the transthoracic, transesophageal, and intracardiac echocardiographic modalities used for periprocedural and intraprocedural imaging of the interatrial septum...
October 2017: Interventional cardiology clinics
https://www.readbyqxmd.com/read/28867128/severely-impaired-cardiorespiratory-fitness-in-patients-with-recently-decompensated-systolic-heart-failure
#3
Justin McNair Canada, Cory Ross Trankle, Leo Francis Buckley, Salvatore Carbone, Nayef Antar Abouzaki, Dinesh Kadariya, Keyur Shah, Richard Cooke, Michael Christopher Kontos, Jaideep Patel, Pranav Mankad, Aaron Schatz, Amit Bhatnagar, Ross Arena, Benjamin Wallace Van Tassell, Antonio Abbate
Hospital admission for decompensated heart failure marks a critical inflection point in a patient's health. Despite the improvement in signs or symptoms during hospitalization, patients have a high likelihood of readmission, reflecting a lack of resolution of the underlying condition. Surprisingly, no studies have characterized the cardiorespiratory fitness of such patients. Fifty-two patients (38 [73%] male, age 57 [52 to 65] years, left ventricular ejection fraction 31% [24 to 38]) underwent cardiopulmonary exercise testing 4 (1 to 10) days after hospital discharge, when stable and without overt signs of volume overload...
August 7, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28866972/comparison-of-continous-wave-doppler-ultrasound-monitor-and-echocardiography-to-assess-cardiac-output-in-intensive-care-patients
#4
Ahmad Elgendy, Ian M Seppelt, Andrew S Lane
BACKGROUND: Continuous-wave Doppler (CWD) ultrasound through the left ventricular outflow tract is one modality used for non-invasive cardiac output measurement. The ultrasonic cardiac output monitor (USCOM) is a relatively new monitor which uses a small, transcutaneous ultrasound probe to measure cardiac output with CWD via the suprasternal window. It is faster and less complex to train new users than conventional echocardiography. In addition to stroke volume (SV), the USCOM can calculate stroke volume variation (SVV) and the Smith-Madigan inotropy index (SMII), which is an estimate of the pre-load independent contractility of the myocardium...
September 2017: Critical Care and Resuscitation: Journal of the Australasian Academy of Critical Care Medicine
https://www.readbyqxmd.com/read/28866112/hemodynamic-assessment-of-septic-shock-patients-using-transpulmonary-thermodilution-and-critical-care-echocardiography-a-comparative-study
#5
Philippe Vignon, Emmanuelle Begot, Arnaud Mari, Stein Silva, Loïc Chimot, Pierre Delour, Frédéric Vargas, Bruno Filloux, David Vandroux, Julien Jabot, Bruno François, Nicolas Pichon, Marc Clavel, Bruno Levy, Michel Slama, Béatrice Riu-Poulenc
BACKGROUND: To assess the agreement between transpulmonary thermodilution (TPT) and critical care echocardiography (CCE) in ventilated septic shock patients. METHODS: Ventilated patients in sinus rhythm requiring advanced hemodynamic assessment for septic shock were included in this prospective multicenter descriptive study. Patients were assessed successively using TPT and CCE in random order. Data were interpreted independently at bedside by two investigators who proposed therapeutic changes based on predefined algorithms...
August 30, 2017: Chest
https://www.readbyqxmd.com/read/28865557/multimodality-noninvasive-imaging-in-the-monitoring-of-pediatric-heart-transplantation
#6
REVIEW
Steven J Kindel, Hao H Hsu, Tarique Hussain, Jonathan N Johnson, Colin J McMahon, Shelby Kutty
Orthotopic heart transplantation is a well-established and effective therapeutic option for children with end-stage heart failure. Multiple modalities, including noninvasive cardiac imaging, cardiac catheterization, angiography, and endomyocardial biopsy, are helpful to monitor these patients for graft dysfunction, rejection, and vasculopathy. Because of morbidities associated with invasive monitoring, noninvasive imaging plays a key role in the surveillance and evaluation of symptoms in pediatric transplant recipients...
September 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28857907/predicting-fluid-responsiveness-in-critically-ill-patients-by-using-combined-end-expiratory-and-end-inspiratory-occlusions-with-echocardiography
#7
Mathieu Jozwiak, François Depret, Jean-Louis Teboul, Jean-Emmanuel Alphonsine, Christopher Lai, Christian Richard, Xavier Monnet
OBJECTIVES: First, we aimed at assessing whether fluid responsiveness is predicted by the effects of an end-expiratory occlusion on the velocity-time integral of the left ventricular outflow tract. Second, we investigated whether adding the effects of an end-inspiratory occlusion and of an end-expiratory occlusion on velocity-time integral can predict fluid responsiveness with similar reliability than end-expiratory occlusion alone but with a higher threshold, which might be more compatible with the precision of echocardiography...
August 29, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28839307/pulse-oximetry-as-a-screening-tool-for-critical-congenital-heart-defects-in-newborns
#8
Muhammad Shahzad, Talal Waqar, Khawaja Ahmad Irfan Waheed, Rafia Gul, Syeda Tahseen Fatima
OBJECTIVE: To evaluate the effectiveness of pulse oximetry as a screening tool for critical congenital heart defects in newborns. METHODS: This cross-sectional study was conducted at the neonatology department of the Children's Hospital and the Institute of Child Health, Lahore, Pakistan, from January to June 2016, and comprised neonates aged up to 07 days. Babies with a prenatal diagnosis of heart defects and those whose parents refused to give consent were excluded...
August 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28836006/management-of-superior-vena-cava-syndrome-in-critically-ill-cancer-patients
#9
Sarah Morin, Adeline Grateau, Danielle Reuter, Eric de Kerviler, Constance de Margerie-Mellon, Cédric de Bazelaire, Lara Zafrani, Benoit Schlemmer, Elie Azoulay, Emmanuel Canet
PURPOSE: The purpose of this study is to describe the management and outcome of critically ill cancer patients with Superior Vena Cava Syndrome (SVCS). METHODS: All cancer patients admitted to the medical intensive care unit (ICU) of the Saint-Louis University Hospital for a SVCS between January 2004 and December 2016 were included. RESULTS: Of the 50 patients included in the study, obstruction of the superior vena cava was partial in two-thirds of the cases and complete in one-third...
August 24, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28826682/echocardiography-for-intraoperative-decision-making-in-mitral-valve-surgery-a-pilot-simulation-based-training-module
#10
Rex Joseph Morais, Balakrishnan Ashokka, Suresh Paranjothy, Chiang Siau, Lian Kah Ti
Echocardiographic assessment of the repaired or replaced mitral valve intraoperatively involves making a high-impact joint decision with the surgeon, in a time-sensitive manner, in a dynamic clinical situation. These decisions have to take into account the degree of imperfection if any, the likelihood of obtaining a better result, the underlying condition of the patient, and the impact of a longer cardiopulmonary bypass period if the decision is made to reintervene. Traditional echocardiography teaching is limited in its ability to provide this training...
May 17, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28820555/satellite-atrial-septal-vegetations-secondary-to-mitral-valve-endocarditis
#11
Germán Cedielq, Marta Guillen Marzo, Ramón de Castro Aritmendiz, Jairo Toro Gil, Alfredo Bardají
Infective endocarditis is a challenging clinical problem with a high rate of mortality. Early recognition of this disease, and especially its complications, remain a critical task for the cardiologist. In this scenario, atrial endocarditis is a rare and sometimes unrecognized complication of mitral valve endocarditis. Herein is reported a clinical case that shows how a satellite vegetation in the atrial septum can be produced in a patient with mitral regurgitation secondary to mitral valve endocarditis. Video 1: Transthoracic echocardiography showing the presence of vegetation in the posterior mitral leaflet, severe secondary mitral regurgitation, and satellite vegetation in the atrial septum...
March 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28817424/impact-of-simulator-based-training-in-focused-transesophageal-echocardiography-a-randomized-controlled-trial
#12
Andreas Bloch, Robert von Arx, Reto Etter, David Berger, Heiko Kaiser, Armando Lenz, Tobias M Merz
BACKGROUND: The aim of the study was to determine if training in transesophageal echocardiography (TEE) using a TEE simulator improves the ability of novice operators to perform and interpret a focused critical care TEE. METHODS: In this prospective, randomized, controlled study with blinded outcome assessment, 44 intensive care unit trainees were randomly assigned to a control group receiving 4 hours of lecture-based training only, or an intervention group which was additionally trained for 4 hours using a TEE simulator...
October 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28801532/activation-of-nkx2-5-calr-p53-signaling-pathway-by-hyperglycemia-induces-cardiac-remodeling-and-dysfunction-in-adult-zebrafish
#13
Sun Yanyi, Wang Qiuyun, Fang Yuehua, Wu Chunfang, Lu Guoping, Chen Zhenyue
Hyperglycemia is an independent risk factor for diabetic cardiomyopathy in humans; however, the underlying mechanisms have not been thoroughly elucidated. Zebrafish (Danio rerio) was used in this study as a novel vertebrate model to explore the signaling pathways of human adult cardiomyopathy. Hyperglycemia was induced by alternately immersing adult zebrafish in a glucose solution or water. The hyperglycemic fish gradually exhibited some hallmarks of cardiomyopathy such as myocardial hypertrophy and apoptosis, myofibril loss, fetal gene reactivation, and severe arrhythmia...
August 11, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28783626/fast-and-fully-automatic-left-ventricular-segmentation-and-tracking-in-echocardiography-using-shape-based-b-spline-explicit-active-surfaces
#14
Joao Pedrosa, Sandro Queiros, Olivier Bernard, Jan Engvall, Thor Edvardsen, Eike Nagel, Jan Dhooge
Cardiac volume/function assessment remains a critical step in daily cardiology and 3D ultrasound plays an increasingly important role. Fully automatic left ventricular segmentation is, however, a challenging task due to the artifacts and low contrast-to-noise ratio of ultrasound imaging. In the present work, a fast and fully automatic framework for full cycle endocardial left ventricle segmentation is proposed. This approach couples the advantages of the B-spline explicit active surfaces framework, a purely image information approach, to those of statistical shape models to give prior information about the expected shape for an accurate segmentation...
August 2, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28770031/systematic-left-ventricular-assist-device-implant-eligibility-with-non-invasive-assessment-the-siena-protocol
#15
REVIEW
Matteo Cameli, Ferdinando Loiacono, Stefania Sparla, Marco Solari, Elisabetta Iardino, Giulia Elena Mandoli, Sonia Bernazzali, Massimo Maccherini, Sergio Mondillo
In patients with end-stage left ventricular (LV) heart failure who receive LV assist device (LVAD) implantation, right ventricular (RV) failure represents a possible critical complication that heavily affects morbidity and mortality. Several clinical, laboratory, hemodynamic, and echocardiographic variables have been found to be associated with RV failure occurrence after surgery. Different models and risk scores have been proposed, with poor results. No accordance has ever been reached about RV pre-operative evaluation, and time has come to introduce a standardized systematic protocol for LVAD suitability assessment according to RV function...
June 2017: Journal of Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/28766046/relationship-between-left-ventricular-diastolic-dysfunction-and-very-late-recurrences-after-multiple-procedures-for-atrial-fibrillation-ablation
#16
Naoaki Onishi, Kazuaki Kaitani, Masashi Amano, Sari Imamura, Jiro Sakamoto, Yodo Tamaki, Soichiro Enomoto, Makoto Miyake, Toshihiro Tamura, Hirokazu Kondo, Chisato Izumi, Yoshihisa Nakagawa
Although very late recurrences (VLRs) (first recurrence >12 months after the last catheter ablation) of atrial fibrillation (AF) after multiple catheter ablation procedures are rare, it remains a critical issue. The risk factors for VLRs remain largely unclear. From December 2011 to April 2014, 253 patients underwent an initial catheter ablation. Of the 253 patients, 21 had AF recurrences within 1 year after the last catheter ablation. The study was conducted in the remaining 232 patients. Left ventricular diastolic dysfunction (LVDD) was assessed by echocardiography using composite categories with tissue Doppler imaging and left atrial volume measurements, i...
August 1, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28749481/evaluation-of-critical-congenital-heart-defects-screening-using-pulse-oximetry-in-the-neonatal-intensive-care-unit
#17
K Van Naarden Braun, R Grazel, R Koppel, S Lakshminrusimha, J Lohr, P Kumar, B Govindaswami, M Giuliano, M Cohen, N Spillane, P Jegatheesan, D McClure, D Hassinger, O Fofah, S Chandra, D Allen, R Axelrod, J Blau, S Hudome, E Assing, L F Garg
OBJECTIVE: To evaluate the implementation of early screening for critical congenital heart defects (CCHDs) in the neonatal intensive care unit (NICU) and potential exclusion of sub-populations from universal screening. STUDY DESIGN: Prospective evaluation of CCHD screening at multiple time intervals was conducted in 21 NICUs across five states (n=4556 infants). RESULTS: Of the 4120 infants with complete screens, 92% did not have prenatal CHD diagnosis or echocardiography before screening, 72% were not receiving oxygen at 24 to 48 h and 56% were born ⩾2500 g...
July 27, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28742197/mir-24-alleviates-cardiomyocyte-apoptosis-after-myocardial-infarction-via-targeting-bim
#18
L-J Pan, X Wang, Y Ling, H Gong
OBJECTIVE: Ischemia hypoxia induces cardiomyocyte (CM) apoptosis in the process of acute myocardial infarction (AMI). It was showed that pro-apoptosis factor BIM participates in regulating tumor cell apoptosis under ischemia or hypoxia condition, while its role in CM apoptosis after AMI is still unclear. It was revealed that miR-24 expression was significantly reduced in myocardial tissue after AMI. Bioinformatics analysis exhibits that miR-24 is targeted to the 3'-UTR of BIM. This study aims to investigate the role of miR-24 in mediating BIM expression and CM apoptosis...
July 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28736288/rapid-decay-of-transthoracic-echocardiography-skills-at-1-month-a-prospective-observational-study
#19
Ryo Yamamoto, David Clanton, Ross E Willis, Rachelle Babbitt Jonas, Ramon F Cestero
OBJECTIVE: Focused transthoracic echocardiography (FTTE) is an emerging tool in the management of critically ill patients, but the lack of adequate training models has limited the expansion of this technology. Although basic FTTE training courses have been shown to be sufficient in developing echocardiography skills, limited data exist regarding skill retention. In an effort to develop an adequate FTTE training model, we sought to determine the degree of skill retention after FTTE training...
July 20, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/28726262/double-aortic-arch-anomalies-in-children-a-systematic-20-year-single-center-study
#20
M Kaldararova, I Simkova, I Varga, P Tittel, M Kardos, M Ondriska, V Vrsanska, J Masura
Aortic arch anomalies underlie numerous congenital disorders. Effectively diagnosing and treating them requires close understanding of cardiovascular embryology. As our Center serves the entire pediatric population of our country, we performed a comprehensive retrospective analysis of all aortic arch anomalies diagnosed at our Center over the past 20 years. We analyzed 40 children with aortic arch anomalies, distinguishing two defect types: Group 1 displayed ring-forming anomalies, and Group 2 other types of aortic arch anomalies that did not form a vascular ring...
July 20, 2017: Clinical Anatomy
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