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https://www.readbyqxmd.com/read/28527022/comparison-of-echocardiographic-parameters-to-assess-right-ventricular-function-in-pulmonary-hypertension
#1
Hirohisa Amano, Shichiro Abe, Suguru Hirose, Ryutaro Waku, Taiki Masuyama, Masashi Sakuma, Shigeru Toyoda, Isao Taguchi, Teruo Inoue, Chuwa Tei
Although measurement of right ventricular ejection fraction (RVEF) may be relevant for evaluation of therapeutic efficacy and/or prognosis in patients with pulmonary hypertension, RVEF obtained by echocardiography has limited accuracy. In contrast, radionuclide and/or magnetic resonance imaging can measure RVEF more reliably. In this study, we investigated the relationship between RVEF measured by radionuclide angiography and the echocardiographic parameters that are recommended by the American Society of Echocardiography as representative of right heart function...
May 19, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28526545/obstructive-sleep-apnoea-and-right-ventricular-function-a-combined-assessment-by-speckle-tracking-and-three-dimensional-echocardiography
#2
Agostino Buonauro, Maurizio Galderisi, Ciro Santoro, Angelo Canora, Maria Luisa Bocchino, Francesco Lo Iudice, Maria Lembo, Roberta Esposito, Sabrina Castaldo, Bruno Trimarco, Alessandro Sanduzzi
BACKGROUND: Little is known on right ventricular (RV) involvement in obstructive sleep apnoea (OSA). This study aimed at evaluating early RV dysfunction by standard and advanced echocardiography in OSA. METHODS: Fifty-nine OSA patients without heart failure and 29 age-matched controls underwent standard, speckle tracking and real time 3D echocardiography of right ventricle. OSA patients performed lung function tests and overnight cardio-respiratory monitoring with evaluation of apnea-hypopnea index (AHI)...
May 4, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28526502/hemodynamic-parameters-predict-adverse-outcomes-following-biventricular-conversion-with-single-ventricle-palliation-takedown
#3
Melissa A Herrin, David Zurakowski, Christopher W Baird, Puja Banka, Jesse J Esch, Pedro J Del Nido, Sitaram M Emani
OBJECTIVE: Patients with a borderline left ventricular hypoplasia in the hypoplastic left heart syndrome variant or an unbalanced atrioventricular canal who undergo initial single-ventricle palliation may be candidates for biventricular (BiV) conversion following left ventricle (LV) recruitment procedures. We investigated associations among preoperative parameters and postoperative outcomes in patients undergoing BiV conversion. METHODS: We performed a retrospective review of patients who underwent BiV conversion to determine variables associated with clinical outcomes...
April 11, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28526207/3d-echocardiographic-diagnosis-of-right-ventricular-perforation-with-polymethylmethacrylate-particles-after-vertebroplasty
#4
Stefaan Bouchez, Eckhard Mauermann, Tine Philipsen, Patrick Wouters
No abstract text is available yet for this article.
February 16, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28525971/left-ventricular-mural-thrombus-and-dual-coronary-embolization-associated-with-hyperthyroid-cardiomyopathy-and-atrial-fibrillation-a-case-report
#5
Guohui Liu, Ping Yang, Yuquan He
BACKGROUND: The majority of acute myocardial infarction (AMI) events are caused by thrombotic occlusion of the coronary artery, secondary to atherosclerotic plaque erosion or rupture. However, coronary embolism (CE), while rare, is being increasingly recognized as an important cause of AMI. We present the case of a patient with multi-site coronary artery embolization associated with hyperthyroid-related cardiomyopathy and atrial fibrillation. CASE PRESENTATION: A 49-year-old female with a history of hyperthyroidism and atrial fibrillation (AF) was admitted to our hospital presenting with right upper limb pain and swelling...
May 19, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28525920/torsade-de-pointes-arrhythmias-arise-at-the-site-of-maximal-heterogeneity-of-repolarization-in-the-chronic-complete-atrioventricular-block-dog
#6
Albert Dunnink, Thom R G Stams, Alexandre Bossu, Veronique M F Meijborg, Jet D M Beekman, Sofieke C Wijers, Jacques M T De Bakker, Marc A Vos
Aims: The chronic complete atrioventricular block (CAVB) dog is highly sensitive for drug-induced torsade de pointes (TdP) arrhythmias. Focal mechanisms have been suggested as trigger for TdP onset; however, its exact mechanism remains unclear. In this study, detailed mapping of the ventricles was performed to assess intraventricular heterogeneity of repolarization in relation to the initiation of TdP. Methods and results: In 8 CAVB animals, 56 needles, each containing 4 electrodes, were inserted in the ventricles...
May 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28525524/easy-placement-of-annular-sutures-during-minimally-invasive-aortic-valve-replacement
#7
Toshinori Totsugawa, Arudo Hiraoka, Kentaro Tamura, Hidenori Yoshitaka, Taichi Sakaguchi
Placing annular sutures at the right coronary cusp is difficult during minimally invasive aortic valve replacement. We propose the partial everting mattress method, whereby a prosthetic valve is implanted in a supra-annular position at the left coronary and noncoronary cusps, with pledgets on the left ventricular side, but in an intra-annular position at the right coronary cusp, with pledgets on the aortic side. Needles can be grasped in forehand pass at all three coronary cusps. Our method enables easy placement of annular stitches even in the small surgical field, without adversely influencing the hemodynamic performance of the prosthesis...
May 18, 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/28524449/technical-feasibility-and-safety-of-image-guided-parieto-occipital-ventricular-catheter-placement-with-the-assistance-of-a-wearable-head-up-display
#8
Jang W Yoon, Robert E Chen, Karim ReFaey, Roberto J Diaz, Ronald Reimer, Ricardo J Komotar, Alfredo Quinones-Hinojosa, Benjamin L Brown, Robert E Wharen
BACKGROUND: Wearable technology is growing in popularity as a result of its ability to interface with normal human movement and function. METHODS: Using proprietary hardware and software, neuronavigation images were captured and transferred wirelessly via a password-encrypted network to the head-up display. The operating surgeon wore a loupe-mounted wearable head-up display during image-guided parieto-occipital ventriculoperitoneal shunt placement in two patients...
May 19, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28523732/long-term-respiratory-outcomes-after-primary-total-correction-for-tetralogy-of-fallot-and-absent-pulmonary-valve-in-patient-with-respiratory-symptoms
#9
Takaya Hoashi, Toru Iwasa, Koji Kagisaki, Masatoshi Shimada, Kenichi Kurosaki, Isao Shiraishi, Hajime Ichikawa
OBJECTIVE: To review long-term respiratory outcomes for tetralogy of Fallot and absent pulmonary valve (TOF/APV) in respiratory symptomatic populations. METHODS: Of 25 consecutive patients undergoing primary total correction for TOF/APV between 1987 and 2016, Sixteen patients (64%) with a preoperative respiratory disturbance were enrolled. The median age at operation was 1.9 months old, including 4 neonates and 12 infants. Ten patients (62.5%) preoperatively necessitated mechanical ventilator support...
May 19, 2017: Congenital Heart Disease
https://www.readbyqxmd.com/read/28523642/autosomal-recessive-nonsyndromic-arrhythmogenic-right-ventricular-cardiomyopathy-without-cutaneous-involvements-a-novel-mutation
#10
Mahdieh Soveizi, Bahareh Rabbani, Yousef Rezaei, Sedigheh Saedi, Nasim Najafi, Majid Maleki, Nejat Mahdieh
The arrhythmogenic right ventricular dysplasia/cardiomyopathy (ARVD/C) is a genetic disease frequently associated with desmosomal mutations, mainly attributed to dominant mutations in the Plakophilin-2 (PKP2) gene. Naxos and Carvajal are the syndromic forms of ARVD/C due to recessive mutations. Herein, we report an autosomal recessive form of nonsyndromic ARVD/C caused by a mutation in the PKP2 gene. After examination and implementation of diagnostic modalities, the definite diagnosis of ARVD/C was confirmed by detection of ventricular tachycardia with a left bundle branch configuration and a superior axis, T-wave inversion in right precordial leads (i...
May 19, 2017: Annals of Human Genetics
https://www.readbyqxmd.com/read/28523319/amyloidosis-a-rare-cause-of-refractory-heart-failure-in-a-young-female
#11
Irina Iuliana Costache, Claudia Florida Costea, Mihai Danciu, Victor Vlad Costan, Viviana Aursulesei, Gabriela FlorenŢa Dumitrescu, Mihaela Dana Turliuc, Anca Sava
Cardiac amyloidosis may occur in any type of systemic amyloidosis. The clinical picture is often characterized by restrictive cardiomyopathy. We report the case of a 41-year-old female patient admitted to the Department of Cardiology with clinical signs of right heart failure: congested jugular veins, hepatomegaly, peripheral edema, ascites associated with atrial fibrillation, low values of arterial blood pressure and oliguria. Echocardiographic findings were helpful for the diagnosis of cardiac amyloidosis: enlarged atrial cavities, normal size ventricles, thickened ventricular septum and posterior left ventricle wall with normal left ventricular ejection fraction, mitral and tricuspid regurgitation...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28522095/the-reduction-of-central-sleep-apnoea-severity-in-the-left-lateral-position-is-not-due-to-an-improvement-in-cardiac-haemodynamics-in%C3%A2-patients-with-chronic-heart-failure
#12
Egidio Traversi, Davide Rossi, Roberto Maestri, Francesca Olmetti, Maria Teresa La Rovere, Gian Domenico Pinna
OBJECTIVE: The severity of central sleep apnoea (CSA), a common comorbidity in patients with chronic heart failure (CHF) and reduced ejection fraction, markedly decreases from the supine to the lateral sleeping position, with no difference between the left and right positions. The mechanisms responsible for this beneficial effect have not yet been elucidated. METHODS: We tested the hypothesis that CSA attenuation in the left lateral position is due, at least in part, to an improvement in cardiac haemodynamics...
June 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28521893/pulmonary-hypertension-in-infants-children-and-young-adults
#13
REVIEW
Georg Hansmann
Pulmonary hypertension (PH) in neonates, infants, children, adolescents, and young adults is a complex condition that can be associated with several cardiac, pulmonary, and systemic diseases contributing to morbidity and mortality. The underlying pulmonary hypertensive vascular disease (PHVD) is characterized by inflammation, pulmonary vascular remodeling, and angio-obliteration leading to elevated pulmonary arterial pressure and resistance, right ventricular dysfunction, left ventricular compression, and subsequent heart failure...
May 23, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28521513/astragalus-polysaccharides-attenuate-monocrotaline-induced-pulmonary-arterial-hypertension-in-rats
#14
Lin-Bo Yuan, Chun-Yan Hua, Sheng Gao, Ya-Ling Yin, Mao Dai, Han-Yan Meng, Piao-Piao Li, Zhong-Xin Yang, Qing-Hua Hu
Astragalus polysaccharides (APS) have been shown to possess a variety of biological activities including anti-oxidant and anti-inflammation functions in a number of diseases. However, their function in pulmonary arterial hypertension (PAH) is still unknown. Rats received APS (200[Formula: see text]mg/kg once two days) for 2 weeks after being injected with monocrotaline (MCT; 60[Formula: see text]mg/kg). The pulmonary hemodynamic index, right ventricular hypertrophy, and lung morphological features of the rat models were examined, as well as the NO/eNOS ratio of wet lung and dry lung weight and MPO...
May 18, 2017: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/28520951/non-selective-his-bundle-pacing-with-a-biphasic-waveform-enhancing-septal-resynchronization
#15
Daniel F Ortega, Luis D Barja, Emilio Logarzo, Nicolas Mangani, Analia Paolucci, Maria P Bonomini
Aims: His bundle pacing has shown to prevent detrimental effects from right ventricular apical pacing (RVA) and proved to resynchronize many conduction disturbances cases. However, the extent of His bundle pacing resynchronization is limited. An optimized stimulation waveform could expand this limit when implemented in His bundle pacing sets. In this work, we temporarily implemented RVA and Non-selective His bundle pacing with a biphasic anodal-first waveform (AF-nHB) and compared their effects against sinus rhythm (SR)...
May 17, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28520540/virtual-surgery-for-conduit-reconstruction-of-the-right-ventricular-outflow-tract
#16
Chin Siang Ong, Yue-Hin Loke, Justin Opfermann, Laura Olivieri, Luca Vricella, Axel Krieger, Narutoshi Hibino
PURPOSE: Virtual surgery involves the planning and simulation of surgical reconstruction using three-dimensional (3D) modeling based upon individual patient data, augmented by simulation of planned surgical alterations including implantation of devices or grafts. Here we describe a case in which virtual cardiac surgery aided us in determining the optimal conduit size to use for the reconstruction of the right ventricular outflow tract. DESCRIPTION: The patient is a young adolescent male with a history of tetralogy of Fallot with pulmonary atresia, requiring right ventricle-to-pulmonary artery (RV-PA) conduit replacement...
May 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28520537/anomalous-origin-of-right-coronary-artery-from-left-coronary-sinus-13-cases-treated-with-the-reimplantation-technique
#17
Alain Cubero, Alejandro Crespo, Gadah Hamzeh, Andrés Cortes, Daniel Rivas, José Ignacio Aramendi
OBJECTIVES: Anomalous aortic origin of a coronary artery is uncommon but potentially clinically significant. Manifestations vary from asymptomatic patients to those who present with angina pectoris, myocardial infarction, heart failure, syncope, arrhythmias, and sudden death. We describe our experience with surgical reimplantation and results at midterm follow-up. METHODS: Between February 2003 and July 2016, a total of 13 patients with anomalous origin of the right coronary artery (RCA) from the left sinus underwent surgical reimplantation...
May 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28518124/direct-re-implantation-of-left-coronary-artery-into-the-aorta-in-adults-with-anomalous-origin-of-left-coronary-artery-from-the-pulmonary-artery-alcapa
#18
Reza Tavakoli, Peiman Jamshidi, Nassrin Yamani, Max Gassmann
Anomalous origin of the left coronary artery from the pulmonary artery (ALCAPA) is a rare congenital anomaly which is one of leading causes of myocardial ischemia and infarction in children. If left untreated, it results in a 90% mortality rate in the first year of life. In patients who survive to the adulthood, the coronary steal phenomenon and retrograde left-sided coronary flow provide a substrate for chronic subendocardial ischemia, which may lead to left ventricular dysfunction, ischemic mitral regurgitation, malignant ventricular arrhythmias, and sudden cardiac death...
April 24, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28517030/gerbode-defect-and-multivalvular-dysfunction-complex-complications-in-adult-congenital-heart-disease
#19
Catarina Ruivo, Joana Guardado, Fernando Montenegro Sá, Fátima Saraiva, Alexandre Antunes, Joana Correia, João Morais
We report a clinical case of a 40-year-old male with surgically corrected congenital heart disease (CHD) 10 years earlier: closure of ostium primum, mitral annuloplasty, and aortic valve and root surgery. The patient was admitted with acute heart failure. Transesophageal echocardiography (TEE) revealed a dysmorphic and severely incompetent aortic valve, a partial tear of the mitral valve cleft repair and annuloplasty ring dehiscence. A true left ventricular-to-right atrial shunt confirmed a direct Gerbode defect...
May 18, 2017: Echocardiography
https://www.readbyqxmd.com/read/28517022/impact-and-management-of-left-ventricular-function-on-the-prognosis-of-takotsubo-syndrome
#20
Ibrahim El-Battrawy, Uzair Ansari, Siegfried Lang, Michael Behnes, Katja Schramm, Christian Fastner, Xiaobo Zhou, Jürgen Kuschyk, Erol Tülümen, Susanne Röger, Martin Borggrefe, Ibrahim Akin
AIMS: Early research has proposed that patients with Takotsubo syndrome (TTS) could have a higher mortality rate than the general population. Our study was conducted to determine the short- and long-term outcome of TTS patients associated with a significantly compromised left ventricular function on hospital admission. METHODS AND RESULTS: Our institutional database constituted a collective of 112 patients diagnosed with TTS between 2003 and 2015. The patients were classified into two groups based on the left ventricular ejection fraction (LVEF), with those presenting with a LVEF >35% on admission categorized into one group (n=65, 58%) and those presenting with LVEF ≤35% (n=47, 42%) categorized into another group...
May 18, 2017: European Journal of Clinical Investigation
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