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https://www.readbyqxmd.com/read/29346633/intraoperative-epicardial-focal-pulmonary-venous-electrocardiography-in-patients-with-atrial-fibrillation
#1
Grzegorz Suwalski, Robert Emery, Jakub Mróz, Kamil Kaczejko, Leszek Gryszko, Andrzej Cwetsch, Andrzej Skrobowski
OBJECTIVES: In patients referred to off-pump coronary artery bypass grafting, pulmonary vein isolation (PVI) may be used for those with persistent atrial fibrillation (AF), an alternative to the Maze procedure. However, the success rate of PVI in persistent AF is limited. The study assesses the prognostic value of focal epicardial electrocardiography of the pulmonary veins (PVs) for surgical ablation results. METHODS: We mapped 140 PV in 35 cases undergoing off-pump coronary artery bypass grafting...
January 15, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29346192/image-quality-overall-evaluability-and-effective-radiation-dose-of-coronary-computed-tomography-angiography-with-prospective-electrocardiographic-triggering-plus-intracycle-motion-correction-algorithm-in-patients-with-a-heart-rate-over-65-beats-per-minute
#2
Gianluca Pontone, Giuseppe Muscogiuri, Andrea Baggiano, Daniele Andreini, Andrea I Guaricci, Marco Guglielmo, Fabio Fazzari, Saima Mushtaq, Edoardo Conte, Andrea Annoni, Alberto Formenti, Elisabetta Mancini, Massimo Verdecchia, Laura Fusini, Lorenzo Bonfanti, Elisa Consiglio, Mark G Rabbat, Antonio L Bartorelli, Mauro Pepi
PURPOSE: Recently, a new intracycle motion correction algorithm (MCA) was introduced to reduce motion artifacts from heart rate (HR) in coronary computed tomography angiography (cCTA). The aim of the study was to evaluate the image quality, overall evaluability, and effective radiation dose (ED) of cCTA with prospective electrocardiographic (ECG) triggering plus MCA as compared with standard protocol with retrospective ECG triggering in patients with HR≥65 bpm. MATERIALS AND METHODS: One hundred consecutive patients (67±10 y) scheduled for cCTA with 65<HR<80 bpm were retrospectively analyzed...
January 16, 2018: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/29339139/improved-coronary-magnetic-resonance-angiography-using-gadobenate-dimeglumine-in-pediatric-congenital-heart-disease
#3
Miguel Silva Vieira, Markus Henningsson, Nathalie Dedieu, Vassilios S Vassiliou, Aaron Bell, Sujeev Mathur, Kuberan Pushparajah, Carlos Alberto Figueroa, Tarique Hussain, René Botnar, Gerald F Greil
BACKGROUND: CMRA in pediatrics remains challenging due to the smaller vessel size, high heart rates (HR), potential image degradation caused by limited patient cooperation and long acquisition times. High-relaxivity contrast agents have been shown to improve coronary imaging in adults, but limited data is available in children. We sought to investigate whether gadobenate dimeglumine (Gd-BOPTA) together with self-navigated inversion-prepared coronary magnetic resonance angiography (CMRA) sequence design improves coronary image quality in pediatric patients...
January 12, 2018: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/29335317/reduced-n-type-ca2-channels-in-atrioventricular-ganglion-neurons-are-involved-in-ventricular-arrhythmogenesis
#4
Dongze Zhang, Huiyin Tu, Liang Cao, Hong Zheng, Robert L Muelleman, Michael C Wadman, Yu-Long Li
BACKGROUND: Attenuated cardiac vagal activity is associated with ventricular arrhythmogenesis and related mortality in patients with chronic heart failure. Our recent study has shown that expression of N-type Ca2+ channel α-subunits (Cav2.2-α) and N-type Ca2+ currents are reduced in intracardiac ganglion neurons from rats with chronic heart failure. Rat intracardiac ganglia are divided into the atrioventricular ganglion (AVG) and sinoatrial ganglion. Ventricular myocardium receives projection of neuronal terminals only from the AVG...
January 15, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29333217/gender-differences-in-clinical-profiles-of-stress-induced-cardiomyopathy
#5
Hyung Yoon Kim, Joon-Hyung Doh, Shin Yi Jang, Eun Kyoung Kim, Joo-Yong Hahn, Duk-Kyung Kim
Background: Although stress-induced cardiomyopathy (SCMP) is reported to be more common in women, little is known about gender differences in patients with SCMP. The aim of the study was to describe clinical features of patients with SCMP according to gender. Methods: One hundred and three patients diagnosed with definite SCMP at a single tertiary institute from January 1997 to August 2014 were enrolled. SCMP was more common in women than in men. Results: Age at presentation was not significantly different between the two groups (p = 0...
December 2017: Journal of Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/29325976/profile-of-brugada-syndrome-patients-presenting-with-their-first-documented-arrhythmic-event-data-from-the-survey-on-arrhythmic-events-in-brugada-syndrome-sabrus
#6
Anat Milman, Antoine Andorin, Jean-Baptiste Gourraud, Pieter G Postema, Frederic Sacher, Philippe Mabo, Sung-Hwan Kim, Jimmy Jm Juang, Shingo Maeda, Yoshihide Takahashi, Tsukasa Kamakura, Takeshi Aiba, Giulio Conte, Georgia Sarquella-Brugada, Eran Leshem, Michael Rahkovich, Aviram Hochstadt, Yuka Mizusawa, Elena Arbelo, Zhengrong Huang, Isabelle Denjoy, Carla Giustetto, Yanushi D Wijeyeratne, Carlo Napolitano, Yoav Michowitz, Ramon Brugada, Ruben Casado-Arroyo, Jean Champagne, Leonardo Calo, Jacob Tfelt-Hansen, Silvia G Priori, Masahiko Takagi, Christian Veltmann, Pietro Delise, Domenico Corrado, Elijah R Behr, Fiorenzo Gaita, Gan-Xin Yan, Josep Brugada, Antoine Leenhardt, Arthur A M Wilde, Pedro Brugada, Kengo F Kusano, Kenzo Hirao, Gi-Byoung Nam, Vincent Probst, Bernard Belhassen
BACKGROUND: Detailed information on the profile of Brugada syndrome (BrS) patients presenting their first arrhythmic event (AE) after prophylactic implantation of a cardioverter defibrillator (ICD) is limited. OBJECTIVES: 1) To compare clinical, electrocardiographic, electrophysiologic and genetic profiles of patients who exhibited their first documented AE as aborted cardiac arrest (CA) (group A) with those in whom the AE was documented after prophylactic ICD implantation (group B); 2) To characterize group B patients' profile using the Class II indications for ICD implantation established by HRS/EHRA/APHRS Expert Consensus Statement in 2013...
January 8, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29324968/long-term-effects-of-an-intensive-lifestyle-intervention-on-electrocardiographic-criteria-for-left-ventricular-hypertrophy-the-look-ahead-trial
#7
Tina E Brinkley, Andrea Anderson, Elsayed Z Soliman, Alain G Bertoni, Frank Greenway, William C Knowler, Stephen P Glasser, Edward S Horton, Mark A Espeland
Background: Left ventricular hypertrophy assessed by electrocardiography (ECG-LVH) is a marker of subclinical cardiac damage and a strong predictor of cardiovascular disease (CVD) events. The prevalence of ECG-LVH is increased in obesity and type 2 diabetes; however, there are no data on the long-term effects of weight loss on ECG-LVH. The purpose of this study was to determine whether an intensive lifestyle intervention reduces ECG-LVH in overweight and obese adults with type 2 diabetes...
January 9, 2018: American Journal of Hypertension
https://www.readbyqxmd.com/read/29322004/thoughts-modulate-the-expression-of-inflammatory-genes-and-may-improve-the-coronary-blood-flow-in-patients-after-a-myocardial-infarction
#8
Carlo Dal Lin, Mariela Marinova, Giorgio Rubino, Elisabetta Gola, Alessandra Brocca, Giorgia Pantano, Laura Brugnolo, Cristiano Sarais, Umberto Cucchini, Biancarosa Volpe, Chiara Cavalli, Maura Bellio, Emilia Fiorello, Sofia Scali, Mario Plebani, Sabino Iliceto, Francesco Tona
Background: Mental stress is one of the main risk factors for cardiovascular disease. Meditation and music listening are two techniques that are able to counteract it through the activation of specific brain areas, eliciting the so-called Relaxing Response (RR). Epidemiological evidence reveals that the RR practice has a beneficial prognostic impact on patients after myocardial infarction. We aimed to study the possible molecular mechanisms of RR underlying these findings. Methods: We enrolled 30 consecutive patients after myocardial infarction and 10 healthy controls...
January 2018: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/29320326/mediastinal-and-pleural-mr-imaging-practical-approach-for-daily-practice
#9
Constantine A Raptis, Sebastian R McWilliams, Kristy L Ratkowski, Jordi Broncano, Daniel B Green, Sanjeev Bhalla
Radiologists in any practice setting should be prepared to use thoracic magnetic resonance (MR) imaging for noncardiac and nonangiographic applications. This begins with understanding the sequence building blocks that can be used to design effective thoracic MR imaging protocols. In most instances, the sequences used in thoracic MR imaging are adapted from protocols used elsewhere in the body. Some modifications, including the addition of electrocardiographic gating or respiratory triggering, may be necessary for certain applications...
January 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29320324/spectrum-of-coronary-artery-aneurysms-from-the-radiologic-pathology-archives
#10
Jean Jeudy, Charles S White, Seth J Kligerman, Jonathan L Killam, Allen P Burke, Jacob W Sechrist, Amar B Shah, Rydhwana Hossain, Aletta Ann Frazier
Advances in medical diagnosis reveal that coronary artery aneurysms (CAAs) may develop in several clinical scenarios and manifest variable symptoms, imaging appearances, and outcomes. Aneurysms are pathologically classified into three groups: atherosclerotic, inflammatory, and noninflammatory. The last category is associated with congenital, inherited, and connective tissue disorders. Overlap exists among the groups, because secondary atherosclerotic change may be present in an aneurysm of any cause. Atherosclerosis is the most common cause of CAAs in adults, and inflammation is considered the underlying mechanism...
January 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29318960/the-role-of-inflammation-in-epicardial-adipose-tissue-in-heart-diseases
#11
Zdenek Matloch, Anna Cinkajzlova, Milos Mraze, Martin Haluzik
Epicardial adipose tissue is not only a specific adipose tissue depot but also an active endocrine organ producing numerous substances with an important role in the development of obesity-related heart diseases. It is located between myocardium and visceral pericardium and consists predominantly of adipocytes, immunocompetent cells, ganglia and interconnecting nerve branches. Several studies documented a positive correlation between pericardial and epicardial fat and left ventricular hypertrophy and septal thickening, leading to diastolic dysfunction, electrocardiographic abnormalities and facilitating cardiac failure...
January 9, 2018: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/29318634/high-density-contact-and-non-invasive-mapping-of-focal-atrial-tachycardia-evidence-of-dual-endocardial-exits-from-an-epicardial-focus
#12
Seigo Yamashita, Darren A Hooks, Ghassen Cheniti, Pierre Jais
We report a case of recurrent focal atrial tachycardia (AT) which mechanisms could be resolved by using non-invasive electrocardiographic imaging (ECGI) reconstructing epicardial potentials and rapid high-density endocardial contact mapping (Rhythmia™). ECGI demonstrated focal activity from the anterior of the left superior pulmonary vein antrum, although Rhythmia™ showed focal activity from the high anterior left atrium with the 2nd focus originating from the site where identical to the focus on the ECGI map with slightly delay (by 8 ms)...
January 10, 2018: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29317970/evaluation-of-the-tp-te-interval-qtc-and-p-wave-dispersion-in-patients-with-coronary-artery-ectasia
#13
Ronan Conlon, Richard Tanner, Santhosh David, Gabor Szeplaki, Joseph Galvin, John Keaney, Edward Keelan, Usama Boles
Background: Coronary artery ectasia (CAE) is defined as a diffuse dilatation of the diameter of the ectatic segment of the coronary artery, 1.5 times greater than that of the adjacent segment. The Tp-Te interval, P-wave and QTc dispersions are relatively new electrocardiographic markers associated with an increased risk of developing arrhythmias. Despite CAE increasing in prevalence in recent years, there is a sparsity of data available about its arrhythmogenic effect. The aim of the study was to evaluate QTc, P-wave dispersion and Tp-Te and Tp-Te/QT ratio in patients with CAE...
December 2017: Cardiology Research
https://www.readbyqxmd.com/read/29315424/cardiac-resynchronization-therapy-in-patients-with-end-stage-hypertrophic-cardiomyopathy
#14
Ammar M Killu, Jae-Yoon Park, Jaskanwal D Sara, David O Hodge, Bernard J Gersh, Rick A Nishimura, Samuel J Asirvatham, Christopher J McLeod
Aims: A dilated/end-stage phase of hypertrophic cardiomyopathy (HCM) is rare but well-recognized. The role for cardiac resynchronization therapy (CRT) in this subset of patients remains unexplored. We aimed to clarify the impact of bi-ventricular pacing CRT in dilated/end-stage HCM. Methods and results: The Mayo Clinic HCM database was interrogated to identify patients with ejection fraction (EF) <50% and CRT. Control subjects were identified in 1:1 manner...
January 1, 2018: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29315324/a-novel-biomarker-for-prediction-of-atrial-fibrillation-susceptibility-in-patients-with-celiac-disease
#15
Selcuk Kucukseymen, Ayhan Hilmi Cekin, Nermin Bayar, Sakir Arslan, Elif Uygur Kucukseymen, Tanju Mercan, Semir Ozdemir
BACKGROUND: Celiac disease (CD), a serious autoimmune disorder that occurs in people who are genetically predisposed, is induced by dietary gluten intake and affects primarily the small intestine. Many studies have identified an increased risk of cardiovascular problems in patients with CD. Moreover, these patients are susceptible to certain liver diseases, as well as fibrosis. OBJECTIVE: The aim of this study was to assess the presence of fibrosis using the De Ritis ratio, determining its effect on the electromechanical features of the left atrium and its susceptibility to atrial fibrillation (AF) in patients with CD...
2018: PloS One
https://www.readbyqxmd.com/read/29315054/ambulatory-management-of-pulmonary-embolism
#16
Houssam Abusibah, Muntasir M Abdelaziz, Peter Standen, Praveen Bhatia, Mahir Ma Hamad
The diagnosis of pulmonary embolism can be very difficult and elusive. It depends greatly on the use of diagnostic tests, which are in turn interpreted according to a pre-test clinical probability. These include non-specific tests such as the chest X-ray and electrocardiograph, which help exclude other conditions such as pneumonia or myocardial infarction. On the other hand, more specific tests such as computed tomography or ventilation/perfusion scanning are used to confirm or exclude the diagnosis of pulmonary embolism...
January 2, 2018: British Journal of Hospital Medicine
https://www.readbyqxmd.com/read/29310809/relation-of-overall-and-abdominal-adiposity-with-electrocardiogram-parameters-of-subclinical-cardiovascular-disease-in-individuals-aged-45-to-65-years-from-the-netherlands-epidemiology-of-obesity-study
#17
Theodora W Elffers, Renée de Mutsert, Hildo J Lamb, Arie C Maan, Peter W Macfarlane, Ko Willems van Dijk, Frits R Rosendaal, J Wouter Jukema, Stella Trompet
Overall and abdominal obesity are well-established risk factors for cardiometabolic disease. However, associations of overall and abdominal adiposity with electrocardiographic (ECG) markers of subclinical cardiovascular disease (CVD) have not yet been fully elucidated. Therefore, we investigated these associations in a population without preexisting CVD. We performed cross-sectional analyses in the Netherlands Epidemiology of Obesity Study. Body mass index (BMI), total body fat, and waist circumference were assessed in all participants, and abdominal subcutaneous adipose tissue and visceral adipose tissue (by magnetic resonance imaging) were assessed in a random subgroup...
December 11, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/29310559/arrhythmias-in-children-in-early-postoperative-period-after-cardiac-surgery
#18
Manoj Kumar Sahu, Anupam Das, Bharat Siddharth, Sachin Talwar, Sarvesh Pal Singh, Atul Abraham, Arin Choudhury
BACKGROUND: Postoperative arrhythmias are a known complication after cardiac surgical repairs for congenital heart disease. METHODS: Data were reviewed pertaining to incidence, diagnosis, potential risk factors, and management of postoperative arrhythmias in 369 consecutive patients under 18 years of age, undergoing elective open heart surgery. All children were admitted to the intensive care unit and continuous electrocardiographic monitoring was performed. Patient factors such as Aristotle Basic Complexity Score, total surgical duration, hypotension, tachycardia, serum lactate level, and inotropic score were analyzed...
January 2018: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/29309839/predictors-of-ecg-screening-failure-for-the-subcutaneous-implantable-cardioverter-defibrillator-in-children-a-prospective-multi-center-study
#19
Matthew Campbell, Jeremy P Moore, Narayanswami Sreeram, Johannes C von Alvensleben, Anjan Shah, Anjan Batra, Ian Law, Shubhayan Sanatani, Vincent Thomas, Farnoosh Nik-Ahd, Stephen Williams, Nina Nosavan, Jennifer Maldonado, Amelia Hart, Thuan Nguyen, Seshadri Balaji
BACKGROUND: Subcutaneous Implantable Cardioverter Defibrillator (SICD) shows promise for select patients at risk for sudden death. However, patients need to pass an ECG screening (ECG-S) test before they can receive an SICD. Predictors of ECG-S failure in children are unclear. OBJECTIVE: To identify the incidence and predictive factors for failure of ECG-S in children. METHODS: Children ≤18 years with a pre-existing ICD underwent SICD ECG-S...
January 5, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29309601/different-responses-to-exercise-between-andersen-tawil-syndrome-and-catecholaminergic-polymorphic-ventricular-tachycardia
#20
Yuko Y Inoue, Takeshi Aiba, Hiro Kawata, Tomoko Sakaguchi, Wataru Mitsuma, Hiroshi Morita, Takashi Noda, Hiroshi Takaki, Keiko Toyohara, Yoshiaki Kanaya, Toshiyuki Itoi, Takeshi Mitsuhashi, Naokata Sumitomo, Yongkeun Cho, Satoshi Yasuda, Shiro Kamakura, Kengo Kusano, Yoshihiro Miyamoto, Minoru Horie, Wataru Shimizu
Aims: Andersen-Tawil Syndrome (ATS) and catecholaminergic polymorphic ventricular tachycardia (CPVT) are both inherited arrhythmic disorders characterized by bidirectional ventricular tachycardia (VT). The aim of this study was to evaluate the diagnostic value of exercise stress tests for differentiating between ATS and CPVT. Methods and results: We included 26 ATS patients with KCNJ2 mutations from 22 families and 25 CPVT patients with RyR2 mutations from 22 families...
December 22, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
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