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Functional echocardiography

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https://www.readbyqxmd.com/read/28548989/imaging-adult-patients-with-fontan-circulation
#1
Salil Ginde, Benjamin H Goot, Peter C Frommelt
PURPOSE OF REVIEW: Survival after the Fontan procedure for palliation of single ventricle congenital heart disease has improved. However, adults with Fontan circulation are at risk for several complications including heart failure, thromboembolism, and protein-losing enteropathy. This review discusses the role of noninvasive imaging for surveillance and early detection of anatomic and functional abnormalities of the Fontan circulation that can impact the risk for Fontan failure over time...
May 25, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28545116/n-terminal-pro-b-type-natriuretic-peptide-in-amniotic-fluid-of-fetuses-with-known-or-suspected-cardiac-load
#2
Christina Leufgen, Ulrich Gembruch, Birgit Stoffel-Wagner, Rolf Fimmers, Waltraut M Merz
BACKGROUND: Myocardial dysfunction occurs in a variety of fetal disorders. Findings from adult cardiology, where n-terminal pro-B-type natriuretic peptide (nt-proBNP) is an established biomarker of left ventricular dysfunction have been extended to fetal life. Since fetal blood sampling is technically challenging we investigated amniotic fluid nt-proBNP for its suitability to diagnose fetal myocardial dysfunction. METHODS: Ultrasound, Doppler examination and echocardiography was applied to classify cases and controls...
2017: PloS One
https://www.readbyqxmd.com/read/28544830/assessment-of-contributors-of-aortopathy-and-subclinical-left-ventricular-dysfunction-in-normally-functioning-bicuspid-aortic-valves
#3
Kamil Tuluce, Selcen Yakar Tuluce, Ersin Cagri Simsek, Serdar Bayata, Cem Nazli
BACKGROUND: Left ventricular (LV) function and the dimensions of aortic valves from normally functioning bicuspid aortic valve (BAV) patients were compared with those of healthy control patients. A comparison between patients with antero-posterior BAV (BAV-AP) or right-left BAV (BAV-RL) was also performed, and the determinants of aortopathy and LV function were investigated. METHODS: Sixty-eight patients with aortic velocities <2 m/s and trivial or mild aortic regurgitation were included in the study...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28543789/surgical-management-of-traumatic-tricuspid-insufficiency
#4
Zhiqi Zhang, Kanhua Yin, Lili Dong, Yongxin Sun, Changfa Guo, Yi Lin, Chunsheng Wang
BACKGROUND: This study reviews our experience with traumatic tricuspid insufficiency (TTI) following blunt chest trauma. METHODS: From January 2010 to June 2016, 10 patients (nine males, mean age 49.0 ± 12.4 years) underwent surgical treatment of TTI following blunt chest trauma. The mean intervals between trauma and diagnosis and between trauma and surgery were 74.1 and 81.8 months, respectively. Preoperatively, all patients exhibited severe tricuspid regurgitation...
May 24, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/28543090/association-of-pulse-pressure-with-left-ventricular-geometry-and-function-in-elderly-nonhypertensive-patients-with-diabetes-a-3d-speckle-tracking-echocardiography-study
#5
Qingqing Wang, Kaibin Tan, Hongmei Xia, Yunhua Gao
PURPOSE: The aims of this study were to investigate and compare the left ventricular (LV) geometry and function in elderly nonhypertensive type 2 diabetic patients with normal (NPP, <60 mm Hg) and with high (HPP, ≥60 mmHg) 24-hour pulse pressure, and to explore the independent predictors of LV strain values in these patients. METHODS: A total of 76 elderly nonhypertensive type 2 diabetic patients with normal (≥55%) LV ejection fraction (LVEF) were included, 36 of whom had HPP...
May 22, 2017: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/28542926/effect-of-spironolactone-on-exercise-tolerance-and-arterial-function-in-older-adults-with-heart-failure-with-preserved-ejection-fraction
#6
Bharathi Upadhya, William G Hundley, Peter H Brubaker, Timothy M Morgan, Kathryn P Stewart, Dalane W Kitzman
OBJECTIVES: To evaluate the effects of an aldosterone antagonist on exercise intolerance in older adults with heart failure and preserved ejection fraction (HFpEF). DESIGN: Randomized, placebo-controlled, double-blind trial. SETTING: Academic medical center, Winston-Salem, North Carolina. PARTICIPANTS: Older adults (N = 80, aged 71 ± 1; 80% female) with stable compensated HFpEF and controlled blood pressure (BP)...
May 19, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28542596/progressive-mitochondrial-protein-lysine-acetylation-and-heart-failure-in-a-model-of-friedreich-s-ataxia-cardiomyopathy
#7
Amanda R Stram, Gregory R Wagner, Brian D Fogler, P Melanie Pride, Matthew D Hirschey, R Mark Payne
INTRODUCTION: The childhood heart disease of Friedreich's Ataxia (FRDA) is characterized by hypertrophy and failure. It is caused by loss of frataxin (FXN), a mitochondrial protein involved in energy homeostasis. FRDA model hearts have increased mitochondrial protein acetylation and impaired sirtuin 3 (SIRT3) deacetylase activity. Protein acetylation is an important regulator of cardiac metabolism and loss of SIRT3 increases susceptibility of the heart to stress-induced cardiac hypertrophy and ischemic injury...
2017: PloS One
https://www.readbyqxmd.com/read/28541599/improvement-of-left-ventricular-diastolic-function-and-left-heart-morphology-in-young-women-with-morbid-obesity-six-months-after-bariatric-surgery
#8
Katarzyna Kurnicka, Justyna Domienik-Karłowicz, Barbara Lichodziejewska, Maksymilian Bielecki, Marta Kozłowska, Sylwia Goliszek, Olga Dzikowska-Diduch, Wojciech Lisik, Maciej Kosieradzki, Piotr Pruszczyk
BACKGROUND: Obesity contributes to left ventricular diastolic dysfunction (LVDD) and may lead to diastolic heart failure. Weight loss (WL) after bariatric surgery (BS) may influence LV morphology and function. Using echocardiography, this study assessed the effect of WL on LV diastolic function (LVDF) and LV and left atrium (LA) morphology 6 months after BS in young women with morbid obesity. METHODS: Echocardiography was performed in 60 women with BMI ≥ 40kg/m², aged 37...
May 25, 2017: Cardiology Journal
https://www.readbyqxmd.com/read/28540527/alignment-of-inducible-vascular-progenitor-cells-on-a-micro-bundle-scaffold-improves-cardiac-repair-following-myocardial-infarction
#9
Anurag Jamaiyar, Weiguo Wan, Vahagn Ohanyan, Molly Enrick, Danielle Janota, Devan Cumpston, Hokyung Song, Kelly Stevanov, Christopher L Kolz, Tatev Hakobyan, Feng Dong, Bi-Min Zhang Newby, William M Chilian, Liya Yin
Ischemic heart disease is still the leading cause of death even with the advancement of pharmaceutical therapies and surgical procedures. Early vascularization in the ischemic heart is critical for a better outcome. Although stem cell therapy has great potential for cardiovascular regeneration, the ideal cell type and delivery method of cells have not been resolved. We tested a new approach of stem cell therapy by delivery of induced vascular progenitor cells (iVPCs) grown on polymer micro-bundle scaffolds in a rat model of myocardial infarction...
July 2017: Basic Research in Cardiology
https://www.readbyqxmd.com/read/28540072/standard-imaging-techniques-in-transcatheter-aortic-valve-replacement
#10
REVIEW
Arash Salemi, Berhane M Worku
Transcatheter aortic valve replacement (TAVR) has become a widely accepted therapeutic option for patients with severe, symptomatic aortic stenosis at intermediate, high, or extreme risk for conventional surgery as determined through a heart team approach. Two valve prostheses are currently available and the Food and Drug Administration (FDA) approved in the United States for TAVR: the self-expandable Medtronic CoreValve (Medtronic, Inc., Minneapolis, MN, USA) and the balloon-expandable Edwards Sapien Valve (Edwards Lifesciences, Irvine CA, USA)...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28540067/utility-of-cardiac-magnetic-resonance-for-evaluation-of-mitral-regurgitation-prior-to-mitral-valve-surgery
#11
REVIEW
Neil K Mehta, Jiwon Kim, Jonathan Y Siden, Sara Rodriguez-Diego, Javid Alakbarli, Antonino Di Franco, Jonathan W Weinsaft
Mitral regurgitation (MR) is a common cause of morbidity worldwide and an accepted indication for interventional therapies which aim to reduce or resolve adverse clinical outcomes associated with MR. Cardiac magnetic resonance (CMR) provides highly accurate means of assessing MR, including a variety of approaches that can measure MR based on quantitative flow. Additionally, CMR is widely accepted as a reference standard for cardiac chamber quantification, enabling reliable detection of subtle changes in cardiac chamber size and function so as to guide decision-making regarding timing of mitral valve directed therapies...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28539827/traditional-chinese-medication-qiliqiangxin-protects-against-cardiac-remodeling-and-dysfunction-in-spontaneously-hypertensive-rats
#12
Hui Wang, Xiaomin Zhang, Pujiao Yu, Qiulian Zhou, Jialiang Zhang, Haifeng Zhang, Hongsheng Zhu, Chenlin Zhang, Wenming Yao, Lin Che, Jiahong Xu, Yihua Bei, Xinli Li
Qiliqiangxin (QLQX), a traditional Chinese herbs medication, exerted protective effect in chronic heart failure patients in a multicenter randomized double-blind study. QLQX has also been found to improve cardiac function and reduce cardiac fibrosis in spontaneously hypertension animal model. However, the effect of longterm treatment with QLQX in such a condition and the related molecular mechanisms remain largely unknown. In the present study, thirteen-week-old spontaneously hypertensive rats (SHRs) were treated by daily intragastric administration of QLQX or saline for one year...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28539566/traumatic-tricuspid-regurgitation
#13
Yan Cheng, Lei Yao, Shengjun Wu
Traumatic tricuspid regurgitation is a rare and progressive disease. Early diagnosis and surgical valve repair are very important. A 57-year-old male was referred to our hospital with a history of blunt chest trauma. Three-dimensional echocardiography showed severe tricuspid regurgitation and demonstrated two main anterior leaflet chordaes of the tricuspid valve rupture and the whole anterior leaflet prolapsed. The diagnosis was severe tricuspid regurgitation due to leaflet chordae rupture secondary to blunt chest trauma...
May 23, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28539414/moderately-elevated-homocysteine-does-not-contribute-to-thoracic-aortic-aneurysm-in-mice
#14
Jasmin Roohi, Benjamin Kang, David Bernard, Djahida Bedja, Harry C Dietz, Lawrence C Brody
Background: Moderate hyperhomocysteinemia is an attractive target for intervention because it is present in 5-7% of the population and can be reversed by diet. This approach presupposes that hyperhomocysteinemia is directly involved in the disease process. Epidemiologic studies have indicated that moderately elevated homocysteine may contribute to thoracic aortic aneurysm (TAA) dilatation and dissection in humans. In vitro, elevated homocysteine disrupts the structure and function of extracellular matrix components, suggesting that moderate hyperhomocysteinemia may contribute to the development and/or progression of TAA...
May 24, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28538380/acute-effects-of-cinacalcet-on-arterial-stiffness-and-ventricular-function-in-hemodialysis-patients-a-randomized-double-blinded-crossover-study
#15
Aurélie Poulin, Pierre-Luc Bellemare, Catherine Fortier, Fabrice Mac-Way, Simon Desmeules, Karine Marquis, Valérie Gaudreault, Marcel Lebel, Mohsen Agharazii
BACKGROUND: Serum calcium concentration (Ca) plays an essential role in a vascular muscle tone and myocardial contractility. Previously, we showed that acutely lowering Ca by hemodialysis reduced arterial stiffness. Cinacalcet is a calcimimetic that lowers Ca and parathyroid hormone (PTH). The aim of the present study was to examine whether acute lowering of Ca by cinacalcet improves vascular stiffness and myocardial diastolic dysfunction. METHOD: This is a double-blinded randomized placebo-controlled crossover study that included 21 adult patients with end-stage kidney disease undergoing chronic hemodialysis...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28538235/what-should-we-do-about-low-blood-pressure-in-preterm-infants
#16
Eugene M Dempsey
The management of preterm infants with low blood pressure soon after birth remains unresolved. The definition of what constitutes low blood pressure is uncertain. At birth, mean blood pressure appears to be gestation specific and increases in the first few days of life. Antenatal steroids, delayed cord clamping, and the avoidance of mechanical ventilation are all associated with higher mean blood pressure and less hypotension after birth. Rates of hypotension of 15-50% have been reported in various studies of extremely preterm infants...
2017: Neonatology
https://www.readbyqxmd.com/read/28536728/neonatologist-performed-point-of-care-functional-echocardiography-in-the-neonatal-intensive-care-unit
#17
Woei Bing Poon, Keng Yean Wong
Functional echocardiography (fECHO) refers to a bedside, limited assessment of the ductus arteriosus, myocardial performance and pulmonary or systemic haemodynamics that is brief in nature and addresses a specific clinical question or management dilemma. This point-of-care ultrasonography is increasingly used internationally and locally among neonatal units to assist with management of neonatal haemodynamic conditions. This article intends to explain the modality, its indications, interpretation and implications for management, and how it impacts long-term outcomes, particularly in chronic lung disease for premature infants born before 32 weeks of gestation...
May 2017: Singapore Medical Journal
https://www.readbyqxmd.com/read/28536682/a-case-of-intramural-coronary-amyloidosis-associated-with-hemodialysis
#18
Faisal M Huq Ronny, George Kleinman, Paul James Kurtin, John Thomas Fallon
Dialysis-related amyloidosis predominantly occurs in osteo-articular structures and dialysis-related amyloid (DRA) substances also deposit in extra-articular tissues. Clinical manifestations of DRA include odynophagia, gastrointestinal hemorrhage, intestinal obstruction, kidney stones, myocardial dysfunction, and subcutaneous tumors. The pathological characteristics of DRA in the heart of hemodialysis patients have rarely been reported. We report the case of a 73-year-old female with a history of cerebral palsy and end-stage renal disease status post two failed renal transplants who had been on hemodialysis for 30 years...
January 2017: Autopsy & case reports
https://www.readbyqxmd.com/read/28534651/tert-butylhydroquinone-promotes-angiogenesis-and-improves-heart-functions-in-rats-after-myocardial-infarction
#19
Nan-Qian Zhou, Ning Liu, Peng Li, Song Ping, Qi-Sheng Peng, Wei-Dong Shi
BACKGROUND: Hypertension is an increased risk of heart failure and acute myocardial infarction (MI). Tert-butylhydroquinone (tBHQ), as an antioxidant, shows multiple cardioprotective actions including the reduction in blood pressure. The aim of this study was to investigate whether and how tBHQ improves heart functions in rats. METHODS: The MI model was established in WKY and spontaneously hypertensive rats (SHRs) by ligation of left anterior descending coronary artery...
May 23, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28533915/mechanisms-of-ecg-signs-in-chronic-obstructive-pulmonary-disease
#20
Marte Strømsnes Larssen, Kjetil Steine, Janne Mykland Hilde, Ingunn Skjørten, Christian Hodnesdal, Knut Liestøl, Knut Gjesdal
OBJECTIVE: Patients with chronic obstructive pulmonary disease (COPD) often have abnormal ECGs. Our aim was to separate the effects on ECG by airway obstruction, emphysema and right ventricular (RV) afterload in patients with COPD. METHODS: A cross-sectional study was performed on 101 patients with COPD without left heart disease and 32 healthy age-matched controls. Body mass index (BMI) was measured, and pulmonary function tests, ECG, echocardiography and right heart catheterisation (only patients) were performed...
2017: Open Heart
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