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Anas Stenosis

Laura Arroyo Pareja, Ana Triviño, Carolina España
No abstract text is available yet for this article.
February 20, 2019: Archivos de Bronconeumología
Ana González-Mansilla, Pablo Martinez-Legazpi, Andrea Prieto, Elena Gomá, Pilar Haurigot, Candelas Pérez Del Villar, Victor Cuadrado, Antonia Delgado-Montero, Raquel Prieto, Teresa Mombiela, Esther Pérez-David, Elena Rodríguez González, Yolanda Benito, Raquel Yotti, Manuel Pérez-Vallina, Francisco Fernández-Avilés, Javier Bermejo
OBJECTIVE: To obtain reference values of aortic valve area (AVA) in a large population and to infer the risk of overestimating aortic stenosis (AS) when focusing on flow-corrected indices of severity. METHODS: We prospectively measured indices of AS in all consecutive echocardiograms performed in a large referral cardiac imaging laboratory for 1 year. We specifically analysed the distribution of AVA, indexed AVA and velocity ratio (Vratio) in patients with and without AS, the latter defined as the coexistence of valvular outflow obstruction (Vmax ≥2...
February 16, 2019: Heart: Official Journal of the British Cardiac Society
Tushar Kotecha, Ana Martinez-Naharro, Michele Boldrini, Daniel Knight, Philip Hawkins, Sundeep Kalra, Deven Patel, Gerry Coghlan, James Moon, Sven Plein, Tim Lockie, Roby Rakhit, Niket Patel, Hui Xue, Peter Kellman, Marianna Fontana
OBJECTIVES: The study sought to assess the performance of cardiovascular magnetic resonance (CMR) myocardial perfusion mapping against invasive coronary physiology reference standards for detecting coronary artery disease (CAD, defined by fractional flow reserve [FFR] ≤0.80), microvascular dysfunction (MVD) (defined by index of microcirculatory resistance [IMR] ≥25) and the ability to differentiate between the two. BACKGROUND: Differentiation of epicardial (CAD) and MVD in patients with stable angina remains challenging...
February 11, 2019: JACC. Cardiovascular Imaging
Carla Leal Moreira, Ana Castro, Fernanda Silva, Paulo Almeida, António Nórton de Matos, Clemente Neves Sousa, Rui Almeida, António Cabrita, José Alexandre Queirós
The vascular access is the mainstay of hemodialysis. Arteriovenous fistula has been prioritized as the first choice of long-term vascular access for its inferior rate of complications and improved patient survival. Rope ladder and buttonhole venipuncture are the most common techniques for arteriovenous fistulae cannulation. Much of the concern regarding buttonhole cannulation is the increased risk for potentially severe systemic infections. Increased risk for stenosis and thrombosis has been addressed but not confirmed...
February 1, 2019: Hemodialysis International
Sara Guerreiro, António Miguel Ferreira, João Abecasis, Carla Saraiva, Hélder Dores, Gonçalo Cardoso, Ana Coutinho Santos, Mariana Castro, Miguel Mendes
INTRODUCTION: The CAD-RADSTM classification was recently introduced in an attempt to standardize coronary computed tomography angiography (CCTA) reports and to provide recommendations for further management. The aim of this study was to assess how additional cardiac investigations were being ordered before the introduction of the CAD-RADS classification in a tertiary hospital's CCTA reports. METHODS: We conducted a single-center retrospective analysis of 200 patients (103 women, mean age 59±13 years) who underwent CCTA for suspected or known coronary artery disease prior to the systematic introduction of the CAD-RADS classification in the reports...
January 17, 2019: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
Mario Augusto Cray da Costa, Ana Caroline Wippich
This paper presents a case study of a 30-year-old male patient with dyspnea on exertion had echocardiographic diagnosis of aortic subvalvar stenosis. Discrete mitral regurgitation and aortic valve dysplasia with mild to moderate insufficiency and hypertrophic cardiomyopathy were also noted. During surgery, a rare condition was identified: presence of papillary muscle anomaly associated with the subaortic membrane as a cause of obstruction of the left ventricular outflow tract. With the resection of these structures and a mitral valve annuloplasty, the patient evolved with a significant improvement of clinical condition and heart failure, with no residual mitral insufficiency...
November 2018: Brazilian Journal of Cardiovascular Surgery
Marcio Miyamotto, Cecilia Naomi Kanegusuku, Carla Mariko Okabe, Christiano Marlo Paggi Claus, Fernanda Zandavalli Ramos, Ágata Rothert, Ana Paula Nudelmann Gubert, Ricardo César Rocha Moreira
Compression of the celiac axis by the median arcuate ligament of the diaphragm can cause nonspecific symptoms such as abdominal pain, vomiting, and weight loss. There is a known association between stenosis or occlusion of the celiac trunk and aneurysms of the pancreaticoduodenal artery. Treatment strategies for patients who have this association should be selected on a case-by-case basis. We describe the case of a patient with pancreaticoduodenal artery aneurysm associated with compression of the celiac trunk by the arcuate ligament, which were managed with endovascular and laparoscopic techniques, respectively...
July 2018: Jornal Vascular Brasileiro
Raúl Franco-Gutiérrez, Alberto José Pérez-Pérez, Virginia Franco-Gutiérrez, Ana María Testa-Fernández, Andrea López-López, Ruth Pérez-Férnandez, Manuel Lorenzo López-Reboiro, Margarita Regueiro-Abel, María Generosa Crespo-Leiro, Carlos González-Juanatey
OBJECTIVES: To evaluate whether carotid disease is associated with coronary artery disease (CAD) extension in patients undergoing treadmill exercise stress echocardiography (EE). METHODS: We retrospectively studied 156 patients without previous vascular disease who underwent EE, carotid ultrasonography, and coronary angiography between 2002 and 2013. Low-, intermediate-, and high-risk EE were defined as negative, localized ischemia, and multivessel/extensive ischemia EE respectively; carotid disease according to Mannheim and American Society of Echocardiography Consensus and CAD extension from zero to three vessel disease as stenosis ≥50% by visual assessment...
December 28, 2018: Echocardiography
Ana Fátima Esteves, Dulce Brito, Joana Rigueira, Inês Ricardo, Raquel Pires, Mónica Mendes Pedro, Fátima Veiga, Fausto Pinto
INTRODUCTION: Valvular heart disease (VHD) is increasing worldwide, mostly because of aging. Percutaneous valve intervention is the preferred therapeutic option in high-risk patients. OBJECTIVE: To characterize the profiles of patients with VHD admitted to the cardiology ward at a tertiary referral center. METHODS: On the basis of ICD-9 codes for VHD, the discharge notes of 287 patients hospitalized over a 22-month period were reviewed and analyzed...
December 13, 2018: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
Ana Ponte, Rolando Pinho, Adélia Rodrigues, Luísa Proença, Joana Silva, Jaime P Rodrigues, Mafalda Sousa, João Carlos Silva, João Carvalho
Background and Aims: This study aims to evaluate the role of an advanced endoscopist to study the entire colon after an incomplete colonoscopy. Methods: All patients with an elective incomplete colonoscopy performed under deep sedation in our department between January 2010 and October 2016 were included. Patients with a colonic stenosis, an inadequate bowel preparation, or a colonoscopy performed without deep sedation were excluded. Included patients were followed up to evaluate if and what type of subsequent examinations (colonoscopy by an advanced endoscopist, single-balloon enteroscopy [SBE], and/or CT colonography) was performed to complete the study of the entire colon...
November 2018: GE Portuguese Journal of Gastroenterology
Ana Djordjevic Dikic, Milorad Tesic, Nikola Boskovic, Vojislav Giga, Jelena Stepanovic, Marija Petrovic, Milan Dobric, Srdjan Aleksandric, Stefan Juricic, Miodrag Dikic, Ivana Nedeljkovic, Milan Nedeljkovic, Miodrag Ostojic, Branko Beleslin
BACKGROUND: The potential of angiography to evaluate the hemodynamic severity of a left main coronary artery (LM) stenosis is limited. Noninvasive transthoracic Doppler echocardiographic coronary flow velocity reserve (CFVR) evaluation of intermediate coronary stenosis has demonstrated remarkably high negative prognostic value. The aim of this study was to assess clinical outcomes in patients with angiographically intermediate LM stenosis and preserved CFVR (>2.0) as evaluated by transthoracic Doppler echocardiographic CFVR...
November 17, 2018: Journal of the American Society of Echocardiography
David R A Reyes, Mariana J Gomes, Camila M Rosa, Luana U Pagan, Silmeia G Zanati, Ricardo L Damatto, Eder A Rodrigues, Robson F Carvalho, Ana A H Fernandes, Paula F Martinez, Aline R R Lima, Marcelo D M Cezar, Luiz E F M Carvalho, Katashi Okoshi, Marina P Okoshi
We evaluated the influence of aerobic exercise on cardiac remodelling during the transition from compensated left ventricular (LV) hypertrophy to clinical heart failure in aortic stenosis (AS) rats. Eighteen weeks after AS induction, rats were assigned into sedentary (AS) and exercised (AS-Ex) groups. Results were compared to Sham rats. Exercise was performed on treadmill for 8 weeks. Exercise improved functional capacity. Echocardiogram showed no differences between AS-Ex and AS groups. After exercise, fractional shortening and ejection fraction were lower in AS-Ex than Sham...
November 20, 2018: Journal of Cellular and Molecular Medicine
Carlos Roberto Giúdice, Patricio Esteban Lodi, Ana Milena Olivares, Ignacio Pablo Tobia, Gabriel Andrés Favre
PURPOSE: To evaluate safety, efficacy and functional outcomes after open vesicourethral re - anastomosis using different approaches based on previous urinary continence. MATERIALS AND METHODS: Retrospective study of patients treated from 2002 to 2017 due to vesicourethral anastomosis stricture (VUAS) post radical prostatectomy (RP) who failed endoscopic treatment with at least 3 months of follow-up. Continent and incontinent patients post RP were assigned to abdominal (AA) or perineal approach (PA), respectively...
September 20, 2018: International Braz J Urol: Official Journal of the Brazilian Society of Urology
Raúl Franco-Gutiérrez, Alberto José Pérez-Pérez, Virginia Franco-Gutiérrez, Ana María Testa-Fernández, Rafael Carlos Vidal-Pérez, Manuel Lorenzo López-Reboiro, Víctor Manuel Puebla-Rojo, Melisa Santás-Álvarez, María Generosa Crespo-Leiro, Carlos González-Juanatey
BACKGROUND: Relationship between carotid and coronary artery disease (CAD) in patients undergoing invasive and non-invasive test is unclear. The aim of the study is to evaluate whether carotid disease is associated with CAD in patients submitted to exercise echocardiography (EE) and if it improves the EE ability to predict CAD. METHODS: We retrospectively studied 156 subjects without previous vascular disease who underwent EE, carotid ultrasonography and coronary angiography between 2002 and 2013...
October 9, 2018: Cardiovascular Ultrasound
Ana Fehrmann, Melanie Treutlein, Tanja Rudolph, Volker Rudolph, Kilian Weiss, Daniel Giese, Alexander C Bunck, David Maintz, Bettina Baeßler
PURPOSE: Severe aortic stenosis (AS) is known to be associated with substantial myocardial remodelling, leading to diffuse myocardial fibrosis (DMF). Native myocardial T1 is emerging as a novel imaging biomarker for the non-invasive assessment of DMF. In contrast, no studies exist elucidating changes of myocardial T2 reflecting myocardial oedema in the presence of AS. The purpose of the present study was to combine native T1 and T2 mapping in order to characterize myocardial tissue changes in the setting of severe AS...
October 2018: European Journal of Radiology
María Teresa Nogales-Romo, Carlos Ferrera, Pablo Salinas, Pedro Martínez-Losas, Luis Nombela-Franco, Iván Javier Núñez-Gil, Francisco Javier Noriega, María Del Trigo, Nieves Gonzalo, Pilar Jiménez-Quevedo, Javier Escaned, Antonio Fernández-Ortiz, Carlos Macaya, Ana Viana-Tejedor
OBJECTIVES: Our purpose was to describe the prevalence, distribution, extension, and prognostic value of coronary artery disease (CAD) in patients resuscitated from sudden cardiac arrest (SCA) with non-diagnostic electrocardiogram (ECG). BACKGROUND: The impact of CAD and the indication for cardiac catheterization (CC) in patients resuscitated from SCA with non-diagnostic ECG are uncertain. METHODS: We included prospectively and consecutively 545 patients resuscitated from SCA with at least one CC during hospitalization...
October 2, 2018: Catheterization and Cardiovascular Interventions
Imran Rashid, Ghassan J Maghzal, Yung-Chih Chen, David Cheng, Jihan Talib, Darren Newington, Minqin Ren, Saumitra K Vajandar, Amy Searle, Ana Maluenda, Eva-Lotte Lindstedt, Andrew Jabbour, Antony J Kettle, Andre Bongers, Carl Power, Erik Michaëlsson, Karlheinz Peter, Roland Stocker
Aims: As the inflammatory enzyme myeloperoxidase (MPO) is abundant in ruptured human atherosclerotic plaques, we aimed to investigate the role of MPO as a potential diagnostic and therapeutic target for high-risk plaque. Methods and results: We employed the tandem stenosis model of atherosclerotic plaque instability in apolipoprotein E gene knockout (Apoe-/-) mice. To test the role of MPO, we used Mpo-/-Apoe-/- mice and the 2-thioxanthine MPO inhibitor AZM198. In vivo MPO activity was assessed by liquid chromatography-tandem mass spectrometry detection of 2-chloroethidium generation from hydroethidine and by bis-5HT-DTPA-Gd (MPO-Gd) molecular magnetic resonance imaging (MRI), while plaque phenotype was verified histologically...
September 14, 2018: European Heart Journal
Brendan L Eck, Raymond F Muzic, Jacob Levi, Hao Wu, Rachid Fahmi, Yuemeng Li, Anas Fares, Mani Vembar, Amar Dhanantwari, Hiram G Bezerra, David L Wilson
In this work, we clarified the role of acquisition parameters and quantification methods in myocardial blood flow (MBF) estimability for myocardial perfusion imaging using CT (MPI-CT). We used a physiologic model with a CT simulator to generate time-attenuation curves across a range of imaging conditions, i.e. tube current-time product, imaging duration, and temporal sampling, and physiologic conditions, i.e. MBF and arterial input function width. We assessed MBF estimability by precision (interquartile range of MBF estimates) and bias (difference between median MBF estimate and reference MBF) for multiple quantification methods...
September 13, 2018: Physics in Medicine and Biology
Gregory J Nadolski, Stephen J Hunt, Charles N Weber, Mustafa Mohammed, Santiago Pulido, Michael Noji, Ana Chisholm, Terence P F Gade
PURPOSE: To establish the capability of near-infrared fluorescence (NIRF) imaging for the detection of matrix metalloproteinase 2 (MMP-2) activity as a biomarker of vascular remodeling (VR) in arteriovenous fistulae (AVFs) in vivo. MATERIALS AND METHODS: AVFs were created in the right groins of Wistar rats (n = 10), and sham procedures were performed in the contralateral groins. Fistulography via a left common carotid artery approach confirmed stenosis (> 50%) in a subset of animals (n = 5) 4 weeks after AVF creation...
September 2018: Journal of Vascular and Interventional Radiology: JVIR
Anastase Dzudie, Bonaventure Suiru Dzekem, Cabral Tantchou Tchoumi, Leopold Ndemnge Aminde, Ana O Mocumbi, Martin Abanda, Friedrich Thienemann, Andre Pascal Kengne, Karen Sliwa
INTRODUCTION: The epidemiology of pulmonary hypertension (PH) in low- to middle-income countries is poorly characterised. We assessed the prevalence, baseline characteristics and mortality rate in patients with echocardiographically diagnosed PH at a rural cardiac centre in Cameroon. METHODS: We conducted a prospective cohort study in a subsample of 150 participants, aged 18 years and older, diagnosed with PH [defined as right ventricular systolic pressure (RVSP) ≥ 35 mmHg in the absence of pulmonary stenosis and right heart failure]...
July 2018: Cardiovascular Journal of Africa
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