keyword
MENU ▼
Read by QxMD icon Read
search

Atrioventricular block

keyword
https://www.readbyqxmd.com/read/29792287/safety-tolerability-pharmacokinetics-and-pharmacodynamics-of-glpg1690-a-novel-autotaxin-inhibitor-to-treat-idiopathic-pulmonary-fibrosis-flora-a-phase-2a-randomised-placebo-controlled-trial
#1
Toby M Maher, Ellen M van der Aar, Olivier Van de Steen, Lisa Allamassey, Julie Desrivot, Sonia Dupont, Liesbeth Fagard, Paul Ford, Ann Fieuw, Wim Wuyts
BACKGROUND: Idiopathic pulmonary fibrosis (IPF) causes irreversible loss of lung function. People with IPF have increased concentrations of autotaxin in lung tissue and lysophosphatidic acid (LPA) in bronchoalveolar lavage fluid and exhaled condensate. GLPG1690 (Galapagos, Mechelen, Belgium) is a novel, potent, selective autotaxin inhibitor with good oral exposure. We explored the effects of GLPG1690 in patients with IPF. METHODS: This was a randomised, double-blind, placebo-controlled phase 2a study done in 17 centres in Italy, Ukraine and the UK...
May 18, 2018: Lancet Respiratory Medicine
https://www.readbyqxmd.com/read/29789287/lyme-carditis-and-atrioventricular-block
#2
Douglas Wan, Adrian Baranchuk
No abstract text is available yet for this article.
May 22, 2018: CMAJ: Canadian Medical Association Journal, Journal de L'Association Medicale Canadienne
https://www.readbyqxmd.com/read/29784481/intraventricular-delay-and-blocks
#3
REVIEW
Fabio M Leonelli, Giuseppe Bagliani, Roberto De Ponti, Luigi Padeletti
From the atrioventricular node, electrical activation is propagated to both ventricles by a system of specialized conducting fibers, His Purkinje System (HPS), guaranteeing a fast, synchronous depolarization of both ventricles. From the predivisional common stem, a right and left branch separate, subdividing further in a fairly predictable fashion. Synchronous ventricular activation results in a QRS with specific characteristics and duration of less than 110 milliseconds. Block or delay in any part of the HPS changes the electrocardiographic (ECG) morphology...
June 2018: Cardiac Electrophysiology Clinics
https://www.readbyqxmd.com/read/29784480/atrioventricular-nodal-conduction-disease
#4
REVIEW
Giuseppe Bagliani, Fabio M Leonelli, Roberto De Ponti, Ezio Mesolella, Luigi Padeletti
This article describes the different anatomic structures involved in normal atrioventricular conduction and their pathologic states. It defines their effects on the electrocardiogram, and describes how to localize the level and evaluate the severity of conduction disease by electrocardiographic analysis. It illustrates the relevance of intracavitary recordings in the diagnosis of level of block.
June 2018: Cardiac Electrophysiology Clinics
https://www.readbyqxmd.com/read/29784478/gerbezius-pulsus-mira-inconstantia-and-the-first-descriptions-of-the-atrioventricular-block
#5
REVIEW
Donatella Lippi
This article reconstructs the steps leading to the identification of the atrioventricular block, from its first descriptions to current studies, highlighting the roles of Arthur Keith (1866-1955) and Martin Flack (1882-1931), who contributed to establish the theoretic basis for electrocardiography.
June 2018: Cardiac Electrophysiology Clinics
https://www.readbyqxmd.com/read/29784020/atrioventricular-block-after-acute-myocardial-infarction-and-its-association-with-other-clinical-parameters-in-pakistani-patients-an-institutional-perspective
#6
Kashif Ali Hashmi, Amir Shehzad, Atif Ali Hashmi, Amir Khan
OBJECTIVES: Conduction defects complicating acute myocardial infarction are frequently associated with increased morbidity and mortality. As frequency of this complication has not been widely studied in our population, therefore in this study we aimed to evaluate the frequency of complete atrioventricular block in patients with acute ST segment elevation myocardial infarction and its association with other clinical parameters. RESULTS: The mean age of the patients was 50...
May 21, 2018: BMC Research Notes
https://www.readbyqxmd.com/read/29782862/evaluation-of-cardiac-arrhythmic-risks-using-a-rabbit-model-of-left-ventricular-systolic-dysfunction
#7
Bianca Hemmeryckx, Yuanbo Feng, Liesbeth Frederix, Marleen Lox, Sander Trenson, Rob Vreeken, Hua Rong Lu, David Gallacher, Yicheng Ni, H Roger Lijnen
Patients with heart disease have a higher risk to develop cardiac arrhythmias, either spontaneously or drug-induced. In this study, we have used a rabbit model of myocardial infarction (MI) with severe left ventricular systolic dysfunction (LVSD) to study potential drug-induced cardiac risks with N-(piperidin-2-ylmethyl)-2,5-bis(2,2,2-trifluoroethoxy)benzamide (flecainide). Upon ligation of the left circumflex arteries, male New Zealand White rabbits developed a large MI and moderate or severe LVSD 7 weeks after surgery, in comparison to SHAM-operated animals...
May 18, 2018: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29782250/-effect-of-right-ventricular-myocardial-contractility-on-the-response-to-cardiac-resynchronization-therapy
#8
D I Lebedev, S V Popov, A I Mishkina, M V Lebedeva
AIM: To determine the effect of right ventricular myocardial contractility on the response to cardiac resynchronization therapy (CRT). MATERIALS AND METHODS: The study included 80 patients (49 men, mean age 54±10.5) diagnosed with dilated cardiomyopathy, complete left bundle branch block, and the QRS complex width 146 to 240 ms (183±32 ms). Heart failure was NYHA FC III, ejection fraction (EF) - 30.1±3.8 %, 6‑min walk test - 290.5±64.3 m, and end-diastolic volume (EDV) - 220...
2018: Kardiologiia
https://www.readbyqxmd.com/read/29778818/the-fate-of-the-tricuspid-valve-following-the-transatrial-closure-of-the-ventricular-septal-defect
#9
Raffaele Giordano, Massimiliano Cantinotti, Luigi Di Tommaso, Giuseppe Comentale, Andrea Tozzi, Emanuele Pilato, Gabriele Iannelli, Gaetano Palma
BACKGROUND: The transatrial repair of the ventricular septal defect (VSD) requires an adequate exposure of its rim. We retrospectively evaluated the impact of adopting the tricuspid valve incision (TVI) technique, either with detachment or radial incision, on the postoperative outcome of children undergoing surgical VSD repair. METHODS: From January 2008 to September 2017 we retrospectively enrolled 141 patients, divided into two groups: 97 patients were subjected to TVI (68...
May 17, 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29778339/lower-risk-of-postoperative-arrhythmias-in-congenital-heart-surgery-following-intraoperative-administration-of-magnesium
#10
Dingchao He, Nimisha Aggarwal, David Zurakowski, Richard A Jonas, Charles I Berul, Sridhar Hanumanthaiah, Jeffrey P Moak
OBJECTIVES: Postoperative arrhythmias are common in children undergoing congenital heart surgery. We evaluated whether intraoperative administration of magnesium was associated with a reduced occurrence of specific postoperative arrhythmias, as has been described previously, or had a broader effect on multiple arrhythmia types, and whether there existed a dose-effect of intraoperative magnesium. METHODS: We used a historical prospective observational cohort study...
April 18, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29759839/short-lasting-episodes-of-torsade-de-pointes-in-the-chronic-atrioventricular-block-dog-model-have-a-focal-mechanism-while-longer-lasting-episodes-are-maintained-by-re-entry
#11
Nele Vandersickel, Alexandre Bossu, Jan De Neve, Albert Dunnink, Veronique M F Meijborg, Marcel A G van der Heyden, Jet D M Beekman, Jacques M T De Bakker, Marc A Vos, Alexander V Panfilov
OBJECTIVES: This study investigated the arrhythmogenic mechanisms responsible for torsade de pointes (TdP) in the chronic atrioventricular block dog model, known for its high susceptibility for TdP. BACKGROUND: The mechanism of TdP arrhythmias has been under debate for many years. Focal activity as well as re-entry have both been mentioned in the initiation and the perpetuation of TdP. METHODS: In 5 TdP-sensitive chronic atrioventricular block dogs, 56 needle electrodes were evenly distributed transmurally to record 240 unipolar local electrograms simultaneously...
December 26, 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29758403/progression-of-intra-hisian-atrioventricular-block-will-this-presage-a-renaissance-of-his-bundle-studies
#12
EDITORIAL
Melvin M Scheinman
No abstract text is available yet for this article.
May 11, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29755837/chagasic-cardiomyopathy-and-pompe-disease-case-report
#13
Rafael Ob de Morais, Ândrea V Chaves-Markman, Anna Pp Miranda, Ingrid G Amorim, Maria da Ga de M Cavalcanti, Manuel Markman, Brivaldo Markman-Filho
BACKGROUND: Pompe disease is a lysosomal storage disease with an autosomal recessive inheritance characterized by an insufficient activity of the acid alpha-glucosidase enzyme. The incidence varies from 1:40000 to 1:200000 live births and cardiac involvement in adults is rare. Chagas disease is an infection caused by the protozoan Trypanosoma cruzi, in which one-third of the cases progress to the chronic form, and may lead to cardiac involvement, usually from the fifth decade of life onwards...
2018: American Journal of Cardiovascular Disease
https://www.readbyqxmd.com/read/29753687/istaroxime-a-positive-inotropic-agent-devoid-of-proarrhythmic-properties-in-sensitive-chronic-atrioventricular-block-dogs
#14
Alexandre Bossu, Amée Kostense, Henriette D M Beekman, Marien J C Houtman, Marcel A G van der Heyden, Marc A Vos
Current inotropic agents in heart failure therapy associate with low benefit and significant adverse effects, including ventricular arrhythmias. Istaroxime, a novel Na+ /K+ -transporting ATPase inhibitor, also stimulates SERCA2a activity, which would confer improved inotropic and lusitropic properties with less proarrhythmic effects. We investigated hemodynamic, electrophysiological and potential proarrhythmic and antiarrhythmic effects of istaroxime in control and chronic atrioventricular block (CAVB) dogs sensitive to drug-induced Torsades de Pointes arrhythmias (TdP)...
May 10, 2018: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29749935/improvement-of-reverse-remodeling-using-electrocardiogram-fusion-optimized-intervals-in-cardiac-resynchronization-therapy-a-randomized-study
#15
Emilce Trucco, José María Tolosana, Elena Arbelo, Ada Doltra, María Ángeles Castel, Eva Benito, Roger Borràs, Eduard Guasch, Silvia Vidorreta, Barbara Vidal, Silvia Montserrat, Marta Sitges, Antonio Berruezo, Josep Brugada, Lluís Mont
OBJECTIVES: The aim of this study was to compare patient response to cardiac resynchronization therapy (CRT) using fusion-optimized atrioventricular (AV) and interventricular (VV) intervals versus nominal settings. BACKGROUND: The additional benefit obtained by AV- and VV-interval optimization in patients undergoing CRT remains controversial. Previous studies show short-term benefit in hemodynamic parameters; however, midterm randomized comparison between electrocardiogram optimization and nominal parameters is lacking...
February 2018: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29746310/beneficial-response-of-blood-pressure-to-short-term-continuous-positive-airway-pressure-in-chinese-patients-with-obstructive-sleep-apnea-hypopnea-syndrome
#16
Xiao Wang, Jian Qiu, Yufeng Wang, Zechuan Cai, Xiaoxia Lu, Taoping Li
BACKGROUND: Obstructive sleep apnea-hypopnea syndrome (OSAHS) is common in people with hypertension and cardiac rhythm disorder. The objectives of this study were to determine the effect of short-term continuous positive airway pressure (CPAP) on blood pressure (BP) and cardiac rhythm in Chinese patients with moderate to severe OSAHS. PATIENTS AND METHODS: Eligible patients in the two hospitals were consecutively enrolled into the prospective study. Ambulatory BP monitoring and Holter monitoring were both performed for 24 h in 214 patients who previously encountered a full night polysomnography...
May 9, 2018: Blood Pressure Monitoring
https://www.readbyqxmd.com/read/29744993/paroxysmal-complete-atrioventricular-block-in-pediatric-heart-transplant-recipients-following-cardiac-catheterization-a-case-series
#17
Defne A Magnetta, Brian Feingold, Lee B Beerman, Brian Blasiole, Gaurav Arora
Late-onset paroxysmal AVB has been described as a rare complication after HT and has been associated with AR or CAV. We describe 4 pediatric HT recipients who developed paroxysmal AVB hours after routine cardiac catheterization in the absence of AR, CAV, or underlying conduction system disease. Four pediatric HT recipients who were >1 year post-transplant had episodes of paroxysmal AVB hours after surveillance cardiac catheterization with EMB. Telemetry demonstrated high-grade block, ranging from 2:1 AVB to complete AVB without ventricular escape for several seconds...
May 10, 2018: Pediatric Transplantation
https://www.readbyqxmd.com/read/29744061/ablation-of-parahisian-premature-ventricular-extrasystoles-by-subtricuspid-retrograde-approach-using-inverted-catheter-technique-back-to-the-anatomy
#18
Basar Candemir, Veysel Duzen, Firat Coskun, Veysel Kutay Vurgun, Huseyin Goksuluk, Nil Ozyuncu, Seda Tan Kurklu, Ali Timucin Altin, Omer Akyurek, Cetin Erol
This report illustrates a feasible and anatomical solution aiming to improve the success and decrease the possible hazards such as atrioventricular block during ablation of parahisian PVCs. We tried to illustrate the specific anatomy pertaining parahisian region and to explain a retrograde subvalvular catheter technique to overcome these procedural obstacles.
May 2018: Clinical Case Reports
https://www.readbyqxmd.com/read/29707483/slow-pathway-modification-for-treatment-of-pseudo-pacemaker-syndrome-due-to-first-degree-atrioventricular-block-with-dual-atrioventricular-nodal-physiology
#19
Joshua M Lader, David Park, Anthony Aizer, Douglas Holmes, Larry A Chinitz, Chirag R Barbhaiya
No abstract text is available yet for this article.
March 2018: HeartRhythm Case Reports
https://www.readbyqxmd.com/read/29701822/permanent-his-bundle-pacing-a-systematic-literature-review-and-meta-analysis
#20
Francesco Zanon, Kenneth A Ellenbogen, Gopi Dandamudi, Parikshit S Sharma, Weijian Huang, Daniel L Lustgarten, Roderick Tung, Hiroshi Tada, Jayanthi N Koneru, Tracy Bergemann, Dedra H Fagan, John Harrison Hudnall, Pugazhendhi Vijayaraman
Aims: Permanent cardiac pacing of the His-bundle restores and retains normal electrical activation of the ventricles. Data on His-bundle pacing (HBP) are largely limited to small single-centre reports, and clinical benefits and risks have not been systematically examined. We sought to systematically examine published studies of patients undergoing permanent HBP and quantify the benefits and risks of the therapy. Methods and results: PubMed, Embase, and Cochrane Library were searched for full-text articles on permanent HBP...
April 26, 2018: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
keyword
keyword
31771
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"