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Cardiac ultrasound

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https://www.readbyqxmd.com/read/27920655/deep-vein-thrombosis-as-initial-manifestation-of-whipple-disease
#1
Mônica Souza de Miranda Henriques, Alexandre Rolim da Paz, Ana Beatriz Person Gaertner, Cibelle Ingrid Stephen Melo, Priscyanne Lins Filgueiras, Rafaella Alencar Jerome
INTRODUCTION: Wipple disease (WD) is a rare chronic disease caused by the bacillus Tropheryma whipplei. Constitutive, rheumatologic, gastrointestinal, cardiac, cerebral, lymphatic, cutaneous, and ophthalmological signs are possible systemic symptoms. However, thrombotic manifestations are rarely described as "stroke-like syndrome" or arterial thrombosis. Diagnosis is based on clinical manifestations and pathological examination. Laboratory findings may include anemia, leukocytosis, and thrombocytosis...
September 2016: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/27911009/echocardiographic-predictors-of-outcome-in-patients-with-chronic-obstructive-pulmonary-disease
#2
Ivan Stankovic, Robert Marcun, Aleksandra Janicijevic, Jerneja Farkas, Sasa Kadivec, Ivan Ilic, Aleksandar N Neskovic, Mitja Lainscak
BACKGROUND: We aimed to assess the relationship between echocardiographic characteristics and mortality in patients with chronic obstructive pulmonary disease (COPD). METHODS: We prospectively studied 154 patients (mean age 71 ± 10 years, 71% male) with COPD. All patients underwent transthoracic Doppler echocardiography within 48 hours of hospital admission. Primary endpoint was all-cause mortality during a median period of 22 months. RESULTS: Mildly elevated tricuspid regurgitation pressure and mitral E/e' ratio were the most commonly encountered echocardiographic abnormalities, observed in 60% and 56% of patients, respectively...
December 2, 2016: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/27910051/ultrasound-targeted-microbubble-destruction-for-cardiac-gene-delivery
#3
Shuyuan Chen, Paul A Grayburn
Ultrasound targeted microbubble destruction (UTMD) is a novel technique that is used to deliver a gene or other bioactive substance to organs of living animals in a noninvasive manner. Plasmid DNA binding with cationic liposome into nanoparticles are assembled into the shell of microbubbles, which are circulated by intravenous injection. Intermittent bursts of ultrasound with low frequency and high mechanical index destroys the microbubbles and releases the nanoparticles into targeted organ to transfect local organ cells...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27907878/ultrasound-in-cardiac-trauma
#4
Theodosios Saranteas, Andreas F Mavrogenis, Christina Mandila, John Poularas, Fotios Panou
In the perioperative period, the emergency department or the intensive care unit accurate assessment of variable chest pain requires meticulous knowledge, diagnostic skills, and suitable usage of various diagnostic modalities. In addition, in polytrauma patients, cardiac injury including aortic dissection, pulmonary embolism, acute myocardial infarction, and pericardial effusion should be immediately revealed and treated. In these patients, arrhythmias, mainly tachycardia, cardiac murmurs, or hypotension must alert physicians to suspect cardiovascular trauma, which would potentially be life threatening...
November 5, 2016: Journal of Critical Care
https://www.readbyqxmd.com/read/27907850/automated-annotation-and-quantitative-description-of-ultrasound-videos-of-the-fetal-heart
#5
Christopher P Bridge, Christos Ioannou, J Alison Noble
Interpretation of ultrasound videos of the fetal heart is crucial for the antenatal diagnosis of congenital heart disease (CHD). We believe that automated image analysis techniques could make an important contribution towards improving CHD detection rates. However, to our knowledge, no previous work has been done in this area. With this goal in mind, this paper presents a framework for tracking the key variables that describe the content of each frame of freehand 2D ultrasound scanning videos of the healthy fetal heart...
November 19, 2016: Medical Image Analysis
https://www.readbyqxmd.com/read/27903535/magnetic-resonance-imaging-of-cardiac-strain-pattern-following-transplantation-of-human-tissue-engineered-heart-muscles
#6
Xulei Qin, Johannes Riegler, Malte Tiburcy, Xin Zhao, Tony Chour, Babacar Ndoye, Michael Nguyen, Jackson Adams, Mohamed Ameen, Thomas S Denney, Phillip C Yang, Patricia Nguyen, Wolfram H Zimmermann, Joseph C Wu
BACKGROUND: The use of tissue engineering approaches in combination with exogenously produced cardiomyocytes offers the potential to restore contractile function after myocardial injury. However, current techniques assessing changes in global cardiac performance after such treatments are plagued by relatively low detection ability. Since the treatment is locally performed, this detection could be improved by myocardial strain imaging that measures regional contractility. METHODS AND RESULTS: Tissue engineered heart muscles (EHMs) were generated by casting human embryonic stem cell-derived cardiomyocytes with collagen in preformed molds...
November 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27903485/endovascular-repair-of-thoraco-abdominal-aortic-aneurysm-in-high-surgical-risk-patients-fenestrated-and-branched-endografts
#7
E Gallitto, M Gargiulo, A Freyrie, C Bianchini Massoni, R Pini, C Mascoli, G L Faggioli, S Ancetti, A Stella
AIM: To report early and mid-term results of endovascular repair of thoraco-abdominal aneurysms (TAAA) by using of Cook-Zenith fenestrated/branched endografts (FB-EVAR) in high-surgical risk patients unfit for open repair (OR). METHODS: Between January 2012 and April 2015, all the patients with TAAA, considered at high-surgical risk for OR and treated by Cook-Zenith FB-EVAR, were prospectively enrolled. Patients were studied using a thoraco-abdominal computer tomography angiography (CTA) and dedicated software for advanced vessels analysis...
November 26, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27902608/transient-ulnar-artery-compression-facilitates-transradial-access
#8
Zhi-Ming Zhou, Zhen-Xian Yan, Bin Nie, Yong-He Guo, Yu-Jie Zhou
BACKGROUND: Unsuccessful radial artery puncture is one of the important causes of transradial procedure failure. Ulnar artery compression made the radial artery pulse stronger. Whether it would make transradial access easier, however, is uncertain. METHODS: A prospective randomized controlled trial was conducted among 446 patients who planned for transradial cardiac catheterization. Patients were randomized to receiving either transient ulnar artery compression (UC) or standard treatment (standard) for half an hour prior to needle insertion (217 UC, 229 standard)...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27895830/development-of-a-subspecialty-cardiology-curriculum-for-paediatric-registrars-in-malawi-implementation-of-a-long-distance-hybrid-model
#9
Laura Newberry, Neil Kennedy, Elizabeth A Greene
BACKGROUND: Malawi has a high burden of paediatric cardiac disease but a limited number of health providers familiar with these chronic diseases. Given the rising number of Malawian postgraduate paediatric trainees at the University of Malawi College of Medicine, we sought to remedy this lack of basic cardiology training with a long-distance, module-based curriculum that could be utilised independently, as needed, with on-site teaching. We also wished to evaluate the initial modules for utility and improvement in knowledge and confidence in each topic...
June 2016: Malawi Medical Journal: the Journal of Medical Association of Malawi
https://www.readbyqxmd.com/read/27889772/sonodynamic-therapy-inhibits-fibrogenesis-in-rat-cardiac-fibroblasts-induced-by-tgf-%C3%AE-1
#10
Yuanyuan Guo, Zengxiang Dong, Yuanqi Shi, Wei Wang, Lu Wang, Jing Sun, Xin Sun, Zhen Tian, Jianting Yao, Zhitao Li, Jiali Cheng, Ye Tian
BACKGROUND/AIMS: Sonodynamic therapy (SDT) is a localized ultrasound-activated therapy for atherosclerosis when combined with a sonosensitizer, 5-aminolevulinic acid (ALA), but whether it can prevent cardiac fibrosis has not been studied. In the present study, we evaluated the effects SDT on fibrogenesis in rat cardiac fibroblasts. METHODS: The primary cardiac fibroblasts were isolated from rats, and induced to fibrogenesis with TGF-β1. With this in vitro model, we tested the preventive effects of SDT on fibrogenesis and further the underlying mechanism...
November 25, 2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27887762/extracardiac-signs-of-fluid-overload-in-the-critically-ill-cardiac-patient-a-focused-evaluation-using-bedside-ultrasound
#11
REVIEW
William Beaubien-Souligny, Josée Bouchard, Georges Desjardins, Yoan Lamarche, Mark Liszkowski, Pierre Robillard, André Denault
Fluid balance management is of great importance in the critically ill cardiac patient. Although intravenous fluids are a cornerstone therapy in the management of unstable patients, excessive administration coupled with cardiac dysfunction leads to elevation in central venous pressure and end-organ venous congestion. Fluid overload is known to have a detrimental effect on organ function and is responsible for significant morbidity in critically ill patients. Multisystem bedside point of care ultrasound imaging can be used to assess signs of fluid overload and venous congestion in critically ill patients...
August 24, 2016: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/27886159/cardiac-monitoring-in-patients-on-trastuzumab-correlation-of-ultrasound-and-radionuclide-ventriculography
#12
Erika Matos, Borut Jug, Barbara Vidergar Kralj, Branko Zakotnik
BACKGROUND: Guidance on cardiac surveillance during adjuvant trastuzumab therapy remains elusive. The recommended methods are 2-dimensional echocardiography (2D-ECHO) and electrocardiography gated equilibrium radionuclide ventriculography (RNV). We assessed the correlation and possible specific merits of these two methods. METHODS: In a prospective cohort study in patients undergoing post-anthracycline adjuvant trastuzumab therapy, clinical assessment, 2D-ECHO and RNV were performed at baseline, 4, 8 and 12 months...
November 25, 2016: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/27884577/low-pressure-pericardial-tamponade-case-report-and-review-of-the-literature
#13
Brooks M Walsh, Lauren A Tobias
BACKGROUND: Focused cardiac ultrasound (FoCUS) is accurate for determining the presence of a pericardial effusion. Using FoCUS to evaluate for pericardial tamponade, however, is more involved. Many experts teach that tamponade is unlikely if the inferior vena cava (IVC) shows respiratory variation and is not distended. CASE REPORT: A 53-year-old woman presented to the emergency department (ED) with severe orthostatic hypotension, exertional dyspnea, and hypoxia...
November 21, 2016: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/27882155/clinical-value-of-diagnosing-aortico-left-ventricular-tunnel-by-echocardiography
#14
Manying Xie, Jiabao Yin, Qing Lv, Jing Wang
In order to assess the clinical value of echocardiography in the diagnosis of aortico-left ventricular tunnel (ALVT) the echocardiographic data and clinical manifestations of six patients with ALVT were analyzed in the present study. Based on the results, a comprehensive study was conducted regarding 147 cases from related documents. Six patients were confirmed with ALVT by surgery. The echocardiographic images of the patients revealed an abnormal communication beginning in the ascending aorta above the coronary arteries, bypassing the aortic valve, and ending in the left ventricle...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27878625/reference-ranges-of-fetal-cardiac-biometric-parameters-using-three-dimensional-ultrasound-with-spatiotemporal-image-correlation-m%C3%A2-mode-and-their-applicability-in-congenital-heart-diseases
#15
Giselle Darahem Tedesco, Marilim de Souza Bezerra, Fernanda Silveira Bello Barros, Wellington P Martins, Luciano Marcondes Machado Nardozza, Milene Carvalho Carrilho, Antonio Fernandes Moron, Francisco Herlânio Costa Carvalho, Liliam Cristine Rolo, Edward Araujo Júnior
To determine reference values for fetal heart biometric parameters using the spatiotemporal image correlation (STIC) M mode and their applicability in congenital heart diseases (CHDs). A cross-sectional prospective study was conducted with 300 singleton pregnancies between 20 and 33 + 6 weeks of gestation. Right ventricular wall thickness (RVWT), interventricular septum thickness (IVST), and left ventricular wall thickness (LVWT) were measured off-line using the STIC-M mode with the cursor perpendicular to the interventricular septum...
November 23, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27875660/successful-use-of-targeted-temperature-management-after-repair-of-myocardial-rupture-from-blunt-chest-trauma-a-case-report
#16
Wook-Jin Choi, Yun Seok Kim, Jung Seok Hong, Jeong Won Kim
Targeted temperature management (TTM) improves survival and neurological outcome after nontraumatic cardiac arrest. However, TTM is not used widely after traumatic cardiac arrest because of concerns that it might exacerbate bleeding. We report the use of postarrest TTM after repair of blunt myocardial rupture. A 48-year-old man was admitted after being rescued from a major traffic accident by the local emergency service. Focused sonography showed pericardial fluid without cardiac tamponade. Computed tomography showed a large hematoma in the anterior mediastinum associated with hemopericardium...
November 22, 2016: Therapeutic Hypothermia and Temperature Management
https://www.readbyqxmd.com/read/27874196/prenatal-diagnosis-of-upper-extremity-malformations-with-ultrasonography-diagnostic-features-and-perinatal-outcome
#17
Mehmet Serdar Kutuk, Ozguc Altun, Sadan Tutus, Muhammet Ensar Dogan, Mahmut Tuncay Ozgun, Munis Dundar
OBJECTIVE: The aim of this study was to assess the sonographic (US) characteristics, associated malformations, chromosomal status, and perinatal outcomes of fetuses with an upper extremity malformation (UEM) detected by US examination. METHODS: The data of all patients evaluated in the Department of Obstetrics and Gynecology, Prenatal Diagnosis Unit between 2010 and 2015 were searched for UEM. RESULTS: A total of 51 cases with UEM were detected...
November 22, 2016: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/27866678/patient-specific-cfd-models-for-intraventricular-flow-analysis-from-3d-ultrasound-imaging-comparison-of-three-clinical-cases
#18
A M Bavo, A M Pouch, J Degroote, J Vierendeels, J H Gorman, R C Gorman, P Segers
BACKGROUND: As the intracardiac flow field is affected by changes in shape and motility of the heart, intraventricular flow features can provide diagnostic indications. Ventricular flow patterns differ depending on the cardiac condition and the exploration of different clinical cases can provide insights into how flow fields alter in different pathologies. METHODS: In this study, we applied a patient-specific computational fluid dynamics model of the left ventricle and mitral valve, with prescribed moving boundaries based on transesophageal ultrasound images for three cardiac pathologies, to verify the abnormal flow patterns in impaired hearts...
November 11, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27866137/clinical-and-multimodality-imaging-results-at-6-months-of-a-bioresorbable-sirolimus-eluting-scaffold-for-patients-with-single-de-novo-coronary-artery-lesions-the-neovas-first-in-man-trial
#19
Yao-Jun Zhang, Xiao-Zeng Wang, Guosheng Fu, Quan-Min Jing, Geng Wang, Chong-Ying Jin, Li-Hua Xie, Jin-Zan Cai, Bo Xu, Ya-Ling Han
AIMS: The study sought to investigate clinical and multimodality imaging assessment of a bioresorbable sirolimus-eluting scaffold (NeoVas, Lepu Medical, Beijing, China) for patients with single de novo coronary artery lesions. METHODS AND RESULTS: The NeoVas first-in-man study was a prospective, open-label study which enrolled 31 patients with single de novo lesions treated with a bioresorbable sirolimus-eluting scaffold. The primary endpoint was target lesion failure (TLF), a composite of cardiac death, target vessel myocardial infarction and clinically indicated target lesion revascularisation (TLR)...
November 20, 2016: EuroIntervention
https://www.readbyqxmd.com/read/27866017/safety-of-optical-coherence-tomography-in-pediatric-heart-transplant-patients
#20
Sarah M Ulrich, Anja Lehner, Julia Birnbaum, Stefanie Heckel, Nikolaus A Haas, Lale Hakami, Rene Schramm, Robert Dalla Pozza, Marcus Fischer, Rainer Kozlik-Feldmann
BACKGROUND: Cardiac allograft vasculopathy (CAV) is a crucial problem after heart transplantation, in adults as well as in children. CAV is the main risk factor for a reduced long-term graft survival. The early diagnosis and treatment of CAV is essential for a successful long-term preservation of the donor heart. However, asymptomatic progression of CAV and concentric hyperplasia of the coronary arteries may complicate the early diagnosis by conventional measures. Intravascular imaging, such as intravascular ultrasound and optical coherence tomography (OCT), enables the diagnosis of early stage CAV...
November 9, 2016: International Journal of Cardiology
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