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https://www.readbyqxmd.com/read/29283475/the-importance-of-integrated-left-atrial-evaluation-from-hypertension-to-heart-failure-with-preserved-ejection-fraction
#1
REVIEW
Matteo Beltrami, Alberto Palazzuoli, Luigi Padeletti, Elisabetta Cerbai, Stefano Coiro, Michele Emdin, Rossella Marcucci, Doralisa Morrone, Matteo Cameli, Ketty Savino, Roberto Pedrinelli, Giuseppe Ambrosio
AIM: Functional analysis and measurement of left atrium are an integral part of cardiac evaluation, and they represent a key element during non-invasive analysis of diastolic function in patients with hypertension (HT) and/or heart failure with preserved ejection fraction (HFpEF). However, diastolic dysfunction remains quite elusive regarding classification, and atrial size and function are two key factors for left ventricular (LV) filling evaluation. Chronic left atrial (LA) remodelling is the final step of chronic intra-cavitary pressure overload, and it accompanies increased neurohormonal, proarrhythmic and prothrombotic activities...
December 28, 2017: International Journal of Clinical Practice
https://www.readbyqxmd.com/read/29251180/maternal-steroid-therapy-for-fetuses-with-immune-mediated-complete-atrioventricular-block-a-systematic-review-and-meta-analysis
#2
Andrea Ciardulli, Francesco D'Antonio, Elena Rita Magro-Malosso, Gabriele Saccone, Lamberto Manzoli, Mackenzy Radolec, Vincenzo Berghella
INTRODUCTION: To explore the effect of maternal fluorinated steroid therapy on fetuses affected by immune-mediated complete atrio-ventricular block (CAVB) in utero. MATERIAL AND METHODS: Pubmed, Embase, Cinahl and ClinicalTrials.gov databases were searched. Only studies reporting the outcome of fetuses with immune CAVB diagnosed on prenatal ultrasound without any cardiac malformations and treated with fluorinated steroids compared to those not treated were included...
December 17, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29250271/valproic-acid-as-a-cause-of-transient-atrio-ventricular-conduction-block-episodes
#3
Vedat Davutoglu, Munife Neyal, Gokhan Altunbas
Herein we share, to our knowledge for the first time, a a case of valproic acid use complicated by symptomatic atrio-ventricular conduction block episodes on Holter monitoring. Symptomatic atrio-ventricular block episodes should be considered as an unusual side effect of valproic acid despite normal blood therapeutic level. Before consideration of pacemaker implantation in such cases, valproic acid usage should be investigated, and dose reduction should be attempted.
February 2017: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/29250223/california-study-of-ablation-caabl-early-utilization-after-index-hospitalization-for-non-valvular-atrial-fibrillation
#4
Uma Srivatsa, Beate Danielsen, Ezra Amsterdam, Yingbo Yang, Dali Fan, Nayereh Pezeshkian, Richard H White
Background: Catheter ablation (ABL) for non-valvular AF (NVAF) is recommended for symptomatic patients refractory to medical therapy and its success is related to the duration of the arrhythmia prior to intervention.Our aim was to assess the early utilization and the factors that prompted ABL in patients hospitalized for new onset NVAF. Methods: Using de-identified administrative discharge records for hospitalizations and emergency department (ED) visits, we determined the patients who had a first-time (since 1991) health record diagnosis of AF between2005 - 2011...
June 2017: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/29194877/tachycardia-with-varying-atrio-ventricular-relationships-what-is-the-mechanism
#5
Wei Wei, Yumei Xue, Roderick Tung, Xunzhang Wang, Yang Liu, Michael Shehata, Shulin Wu
No abstract text is available yet for this article.
December 1, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29183712/correlation-between-the-sudden-jump-like-increases-of-the-atrio-hisian-interval-induced-during-burst-atrial-pacing-and-during-programmed-atrial-stimulation-in-patients-with-atrioventricular-nodal-reentrant-tachycardia
#6
Iskra H Bayraktarova, Milko K Stoyanov, Boyan T Kunev, Tchavdar N Shalganov
PURPOSE: To study the correlation between the sudden prolongations of the atrio-Hisian (AH) interval with ≥50 ms during burst and programmed atrial stimulation, and to define whether the AH jump during burst atrial pacing is a reliable diagnostic criterion for dual AV nodal physiology. METHODS: Retrospective data on 304 patients with preliminary ECG diagnosis of AV nodal reentrant tachycardia (AVNRT), confirmed during electrophysiological study, was analyzed for the presence of AH jump during burst and programmed atrial stimulation, and for correlation between the pacing modes for inducing the jump...
November 25, 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29151478/low-incidence-of-esophageal-lesions-after-pulmonary-vein-isolation-using-contact-force-sensing-catheter-without-esophageal-temperature-probe
#7
Christian Blockhaus, Patrick Müller, Stephan Vom Dahl, Silke Leonhardt, Dieter Häussinger, Shqipe Gerguri, Lucas Clasen, Jan Schmidt, Muhammed Kurt, Christoph Brinkmeyer, Malte Kelm, Dong-In Shin, Hisaki Makimoto
Pulmonary vein isolation (PVI) is a cornerstone therapy for atrial fibrillation (AF). Although severe complications are rather rare, the development of an atrio-esophageal fistula (AEF) is a fatal complication with a very high mortality even after surgical treatment. The use of esophageal temperature probes (ETP) during PVI may protect the esophagus but it is still under debate since the ETP may also lead to esophageal lesions. The aim of this study was to evaluate the clinical safety of PVI using contact-force (CF) sensing catheter without esophageal temperature monitoring...
November 17, 2017: International Heart Journal
https://www.readbyqxmd.com/read/29132930/a-novel-algorithm-increases-the-delivery-of-effective-cardiac-resynchronization-therapy-during-atrial-fibrillation-the-crtee-randomized-cross-over-trial
#8
Christopher J Plummer, Christopher M Frank, Zsolt Bári, Yahya S Al Hebaishi, Ruth Nicholson Klepfer, Robert W Stadler, Subham Ghosh, Shufeng Liu, Suneet Mittal
BACKGROUND: Cardiac resynchronization therapy (CRT) requires a high % of ventricular pacing (%Vp) to maximize its clinical benefits. Atrial fibrillation (AF) has been shown to reduce %Vp in CRT due to competition with irregular intrinsic atrio-ventricular (AV) conduction. We report the results of a prospective randomized cross-over trial evaluating the amount of effective CRT delivered during AF with a novel algorithm (eCRTAF). OBJECTIVE: To determine whether eCRTAF increases the amount of effective CRT delivered during AF when compared to a currently available rate regularization algorithm...
November 10, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29128861/atrial-cardiomyopathy-in-an-adult-labrador-retriever-dog
#9
E Bomassi, J Rousselot, S Libermann, I Raymond Letron, S Etchepareborde, C Misbach
A 7-year-old castrated male Labrador retriever was examined for a 10-day history of weakness and syncope. Physical examination revealed bradycardia and a grade III/VI left apical systolic heart murmur. Electrocardiography demonstrated bradycardia, absence of P waves and an atrio-ventricular nodal escape rhythm. Echocardiography revealed marked biatrial enlargement. Thoracic radiographs showed no evidence of pulmonary edema. Routine plasma biochemistry and electrolytes, basal serum cortisol, total thyroxin concentration, and complete blood count were within normal limits...
November 2017: Schweizer Archiv Für Tierheilkunde
https://www.readbyqxmd.com/read/29121498/cardiac-involvement-in-myotonic-dystrophy-the-role-of-troponins-and-n-terminal-pro-b-type-natriuretic-peptide
#10
Rea Valaperta, Claudia De Siena, Rosanna Cardani, Fortunata Lombardia, Edina Cenko, Benedetta Rampoldi, Barbara Fossati, Elisa Brigonzi, Roberta Rigolini, Paola Gaia, Giovanni Meola, Elena Costa, Raffaele Bugiardini
BACKGROUND AND AIMS: Myotonic dystrophy type 1 (DM1) and type 2 (DM2) are dominant inherited muscular dystrophies with multiple systemic involvement, often producing cardiac injury. This study sought to determine the clinical significance of elevated high sensitivity cardiac troponin T and I (hs-cTnT and hs-cTnI), and N-terminal pro B-type natriuretic peptide (NT-pro-BNP) in this population. METHODS: Sixty DM patients (35 men and 25 women; mean age: 45.1 years, range: 12-73 years) underwent clinical cardiac investigations and measurements of serum hs-cTnT, hs-cTnI, creatine kinase (CK), and NT-proBNP...
October 21, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/29117988/an-overlooked-case-of-pacemaker-related-heart-failure
#11
Hitesh C Patel, Justin A Mariani
This case describes an iatrogenic cause of heart failure: the pacemaker syndrome. The diagnosis was initially overlooked but in retrospect could have easily been made by reviewing the rhythm strip recorded during the echocardiogram. The patient eventually received the correct treatment to restore atrioventricular synchrony and experienced rapid resolution to her disabling symptoms. LEARNING POINTS: New-onset heart failure following a pacemaker implant should be evaluated with an echocardiogram...
December 2017: Echo Research and Practice
https://www.readbyqxmd.com/read/29105381/early-gestational-hypoxia-and-adverse-developmental-outcomes
#12
REVIEW
Helen E Ritchie, Diana J Oakes, Debra Kennedy, Jaimie W Polson
Hypoxia is a normal and essential part of embryonic development. However, this state may leave the embryo vulnerable to damage when oxygen supply is disturbed. Embryofetal response to hypoxia is dependent on duration and depth of hypoxia, as well as developmental stage. Early postimplantation rat embryos were resilient to hypoxia, with many surviving up to 1.5 hr of uterine clamping, while most mid-gestation embryos were dead after 1 hour of clamping. Survivors were small and many had a range of defects, principally terminal transverse limb reduction defects...
October 16, 2017: Birth Defects Research
https://www.readbyqxmd.com/read/29068040/electrophysiological-effects-of-desflurane-in-children-with-wolff-parkinson-white-syndrome-a-randomized-crossover-study
#13
H Hino, Y Oda, Y Yoshida, T Suzuki, M Shimada, K Nishikawa
BACKGROUND: We hypothesized that, compared with propofol, desflurane prolongs the antegrade accessory pathway effective refractory period (APERP) in children undergoing radiofrequency catheter ablation for Wolff-Parkinson-White (WPW) syndrome. METHODS: In this randomized crossover study, children aged 4.1-16.1 years undergoing radiofrequency catheter ablation for WPW syndrome were randomly divided into four groups according to the concentration of desflurane and anesthetics used in the first and the second electrophysiological studies (EPS)...
October 25, 2017: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/29054201/electrocardiographic-features-various-atrial-site-pacing
#14
REVIEW
Asit Das
Atrial pacing is done for either symptomatic sinus node dysfunction (SND) or for maintenance of atrio-ventricular synchrony in a dual chamber pacemaker. Conventionally, atrial lead is placed in the right atrial appendage. Atrial conduction disorder in patients with permanent pacing results in higher incidence of atrial fibrillation. Atrial septal pacing has emerged as a solution to this problem. So, it is extremely important to understand the different features of paced P wave from various atrial pacing sites...
September 2017: Indian Heart Journal
https://www.readbyqxmd.com/read/29033310/relation-of-elevated-serum-uric-acid-levels-to-first-degree-heart-block-and-other-cardiac-conduction-defects-in-hospitalized-patients-with-type-2-diabetes
#15
Alessandro Mantovani, Riccardo Rigolon, Isabella Pichiri, Giovanni Morani, Stefano Bonapace, Clementina Dugo, Giacomo Zoppini, Enzo Bonora, Giovanni Targher
AIMS: Several studies have reported that moderately elevated serum uric acid levels are associated with an increased risk of tachyarrhythmias (mainly atrial fibrillation) in patients with and without type 2 diabetes mellitus (T2DM). It is currently unknown whether an association also exists between elevated serum uric acid levels and cardiac conduction defects in patients with T2DM. METHODS: We retrospectively analyzed a hospital-based sample of 967 patients with T2DM discharged from our Division of Endocrinology over the years 2007-2014...
December 2017: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/28981521/nonalcoholic-fatty-liver-disease-is-associated-with-an-increased-risk-of-heart-block-in-hospitalized-patients-with-type-2-diabetes-mellitus
#16
Alessandro Mantovani, Riccardo Rigolon, Isabella Pichiri, Stefano Bonapace, Giovanni Morani, Giacomo Zoppini, Enzo Bonora, Giovanni Targher
Recent studies suggested that nonalcoholic fatty liver disease (NAFLD) is associated with an increased risk of cardiac tachyarrhythmias (mainly atrial fibrillation) in patients with and without type 2 diabetes mellitus. The aim of this study was to examine whether an association also exists between NAFLD and heart block. We have retrospectively evaluated a hospital-based cohort of 751 patients with type 2 diabetes discharged from our Division of Diabetes and Endocrinology during years 2007-2014. Standard electrocardiograms were performed on all patients...
2017: PloS One
https://www.readbyqxmd.com/read/28967698/right-ventricular-involvement-and-the-extent-of-left-ventricular-enhancement-with-magnetic-resonance-predict-adverse-outcome-in-pulmonary-sarcoidosis
#17
Jan-Peter Smedema, Robert-Jan van Geuns, Joris Ector, Hein Heidbuchel, Gillian Ainslie, Harry J G M Crijns
AIMS: Cardiac involvement is the main determinant of poor outcomes in sarcoidosis. Right ventricular (RV) dysfunction and left ventricular (LV) late gadolinium enhancement (LGE) have been reported to be predictive of adverse outcome in non-ischaemic cardiomyopathies. The aim of our study was to determine whether delayed RV LGE with cardiovascular magnetic resonance would be predictive of adverse events in addition to LV LGE during the long-term follow-up of pulmonary sarcoidosis patients...
October 2, 2017: ESC Heart Failure
https://www.readbyqxmd.com/read/28956130/the-left-atrio-vertebral-ratio-a-new-simple-means-for-assessing-left-atrial-enlargement-on-computed-tomography
#18
Marie Montillet, Marie Baqué-Juston, Jean-Pierre Tasu, Sandra Bertrand, Frédéric Berthier, Naïma Zarqane, Philippe Brunner
OBJECTIVE: The purpose of this study is to describe a new method to quickly estimate left atrial enlargement (LAE) on Computed Tomography. METHODS: Left atrial (LA) volume was assessed with a 3D-threshold Hounsfield unit detection technique, including left atrial appendage and excluding pulmonary venous confluence, in 201 patients with ECG-gated 128-slice dual-source CT and indexed to body surface area. LA and vertebral axial diameter and area were measured at the bottom level of the right inferior pulmonary vein ostium...
September 27, 2017: European Radiology
https://www.readbyqxmd.com/read/28941612/recipient-atrial-fibrillation-manifesting-as-an-irregular-monomorphic-atrial-tachycardia-in-the-donor-heart
#19
Nicolas Johner, Mehdi Namdar, Andréa Buttu, Sophie Perenet, Philippe Meyer, Dipen C Shah
A 63-year-old man presented with a 1-year history of atrial tachycardia (AT) 6 years after orthotopic heart transplantation with bicaval anastomosis. Twelve-lead electrocardiogram showed monomorphic AT with isoelectric intervals across all leads and strikingly irregular PP intervals. At electrophysiology study, the native left atrium's rhythm was atrial fibrillation (AF) while the donor atria exhibited centrifugal activation of irregular cycle length originating from a site along the left atrial anastomosis...
October 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28912041/postoperative-b-type-natriuretic-peptide-monitoring-for-the-assessment-of-the-magnitude-of-shunting-through-blalock-taussig-anastomoses
#20
Cristian Mirabile, Alessandra Mazzola, Liana Valeanu, Vanessa Lopez-Lopez, Claudio Barbanti, Camilla Biselli, Carole Hennequin, Sophie Malekzadeh-Milani, Mirela Bojan
BACKGROUND: The Modified Blalock-Taussig shunt (MBTS) is the most common palliative operation performed in patients with complex cardiac defects. Postoperative morbidity and mortality rates are high, mainly due to shunt thrombosis and over-shunting. Over-shunting may be difficult to identify postoperatively based on conventional criteria. Since plasma B-type natriuretic peptide (BNP) concentrations correlate with the magnitude of shunting in various left-to-right shunt cardiac defects, we investigated its ability to identify postoperative MBTS over-shunting...
December 15, 2017: International Journal of Cardiology
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