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https://www.readbyqxmd.com/read/28822348/risk-factors-for-potential-drug-drug-interactions-in-intensive-care-unit-patients
#1
Slobodan M Janković, Ana V Pejčić, Miloš N Milosavljević, Valentina D Opančina, Nikola V Pešić, Tamara T Nedeljković, Goran M Babić
PURPOSE: To determine risk factors for each severity-based category of potential drug-drug interactions (DDIs) encountered at intensive care unit (ICU) patients. METHODS: This was a retrospective cohort analysis of patients treated at the ICU of the Clinical Center Kragujevac, a public tertiary care hospital in Kragujevac, Serbia. Three interaction checkers were used to reveal drug-drug interactions: Medscape, Epocrates and Micromedex. RESULTS: The study included 201 patients, 66...
August 14, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28821169/predictors-of-pre-procedural-concentrations-of-direct-oral-anticoagulants-a-prospective-multicentre-study
#2
Anne Godier, Anne-Sophie Dincq, Anne-Céline Martin, Adrian Radu, Isabelle Leblanc, Marion Antona, Marc Vasse, Jean-Louis Golmard, François Mullier, Isabelle Gouin-Thibault
Aims: Patients receiving direct oral anticoagulants (DOACs) frequently undergo elective invasive procedures. Their management is challenging. We aimed to determine the optimal duration of DOAC discontinuation that ensures a minimal anticoagulant effect during the procedure. Methods and results: This prospective multicentre study included 422 DOAC-treated patients requiring an invasive procedure. Pre-procedural DOAC concentration ([DOAC]) and routine haemostasis assays were performed to determine i/the proportion of patients who achieved a minimal pre-procedural [DOAC] (≤30 ng/mL) according to the duration of DOAC discontinuation, ii/the predictors of minimal [DOAC] and, iii/the ability of routine assays to predict minimal [DOAC]...
August 14, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28820069/apixaban-effective-and-safe-in-preventing-thromboembolic-events-in-patients-with-atrial-fibrillation-and-renal-failure
#3
Francesca Cortese, Pietro Scicchitano, Michele Gesualdo, Gabriella Ricci, Santa Carbonara, Carlo Franchini, Brigida Immacolata Pia Schiavone, Filomena Corbo, Marco Matteo Ciccone
Thromboembolic events, principally stroke, represent among the leading causes of morbidity and mortality of subjects with atrial fibrillation, with an incidence about 5 times higher compared to healthy subjects. Chronic kidney disease, frequently associated with atrial fibrillation, determines itself a further increase of thromboembolic events, bleeding and mortality. In addition, the presence of renal failure complicates the pharmacological management of these patients, mainly due to the side effects of antiarrhythmic and anticoagulant drugs with renal excretion, due to their accumulation...
August 17, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28814663/parasympathetic-dysfunction-and-antiarrhythmic-effect-of-vagal-nerve-stimulation-following-myocardial-infarction
#4
Marmar Vaseghi, Siamak Salavatian, Pradeep S Rajendran, Daigo Yagishita, William R Woodward, David Hamon, Kentaro Yamakawa, Tadanobu Irie, Beth A Habecker, Kalyanam Shivkumar
Myocardial infarction causes sympathetic activation and parasympathetic dysfunction, which increase risk of sudden death due to ventricular arrhythmias. Mechanisms underlying parasympathetic dysfunction are unclear. The aim of this study was to delineate consequences of myocardial infarction on parasympathetic myocardial neurotransmitter levels and the function of parasympathetic cardiac ganglia neurons, and to assess electrophysiological effects of vagal nerve stimulation on ventricular arrhythmias in a chronic porcine infarct model...
August 17, 2017: JCI Insight
https://www.readbyqxmd.com/read/28814251/the-role-of-radiopharmaceuticals-in-amiodarone-induced-thyroid-pathology
#5
Doina Piciu, Alexandru Irimie
Amiodarone is a di-iodinated benzofuran derivative and is classified as a class III antiarrhythmic agent. It is one of the most powerful and effective antiarrhythmics, being a first-line agent due to its ability to treat ventricular and supraventricular dysrhythmias; since 1960 the drug has become one of the most frequently prescribed antiarrhythmics, despite its potentially serious, side effects. By far, one of the most challenging condition is the thyroid pathology induced by this drug. Each 200 mg tablet of amiodarone contains approximately 75 mg of iodine, 3-10% from each tablet being released as free iodine...
August 16, 2017: Current Radiopharmaceuticals
https://www.readbyqxmd.com/read/28811871/do-all-patients-with-atrial-fibrillation-need-long-term-anticoagulation
#6
Munish Sharma, Rohit Masih, Daniel A N Mascarenhas
Atrial fibrillation (AF) is the most common cardiac arrhythmia worldwide with an estimated number of 2.7-6.1 million cases in the United States (US) alone. The incidence of AF is expected to increase 2.5 fold over the next 50 years in the US. The management of AF is complex and includes mainly three aspects; restoration of sinus rhythm, control of ventricular rate and prevention of systemic thromboembolism. AF as a cause of systemic embolization has been well known for many years, and majority of patients are on oral anticoagulants (OACs) to prevent this...
June 7, 2017: Clinics and Practice
https://www.readbyqxmd.com/read/28810904/antiarrhythmic-drug-therapy-among-patients-presenting-to-emergency-department-with-symptomatic-atrial-fibrillation-a-prospective-nationwide-cohort
#7
Tero Penttilä, Heikki Mäkynen, Juha Hartikainen, Harri Hyppölä, Timo Lauri, Mika Lehto, Juha Lund, M J Pekka Raatikainen
BACKGROUND: Atrial fibrillation (AF) is a common arrhythmia that causes numerous visits to emergency departments (ED). The aim of the FinFib2 study was to evaluate whether treatment of patients with AF in ED is consistent with the contemporary European Society of Cardiology (ESC) management guidelines. Here we report the results of antiarrhythmic drug therapy (AAD) in ED. METHODS: All patients within the two-week study period whose primary reason for the ED visit was symptomatic AF were included into this prospective multicentre study...
August 15, 2017: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
https://www.readbyqxmd.com/read/28802656/rethinking-papillary-muscle-resection-for-refractory-ventricular-tachycardia-in-the-lvad-era-a-case-report
#8
Zachary J Il'Giovine, Adam D DeVore, Chetan B Patel, Jason Koontz, Jacob Schroder
We report the case of a 57-year-old man with a history of ischemic cardiomyopathy who presented to the hospital with recurrent episodes of ventricular tachycardia refractory to antiarrhythmic medications. Mapping identified a deep premature ventricular contraction focus in the anterolateral papillary muscle, an area that has been previously identified as difficult to treat with radiofrequency catheter ablation. The hospital course was complicated by cardiogenic shock and VT-storm, and the patient ultimately underwent surgical resection of the anterolateral papillary muscle with left ventricular assist device placement as a successful bridge to cardiac transplantation...
July 12, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28800211/pharmacokinetics-and-bioequivalence-of-branded-and-generic-formulations-of-dofetilide-0-5-mg-capsules-after-single-dose-administration-in-healthy-subjects
#9
James T VanderLugt, Charles Bon, Dean Knuth, Rhonda Schreiber, Michael D Ruff
Class III antiarrhythmics are preferred therapy for managing atrial fibrillation/flutter. Dofetilide 0.5-mg capsules were US Food and Drug Administration (FDA) approved in 1999 to treat atrial fibrillation/flutter. Bioequivalence of generic dofetilide is important for treating arrhythmias because drug concentrations must be consistent to maintain normal sinus rhythm. Generic dofetilide 0.5-mg capsule pharmacokinetics were compared with branded product in 2 open-label, 2-way crossover, single-dose studies - 1 study each in fasted and fed healthy subjects...
August 11, 2017: Clinical Pharmacology in Drug Development
https://www.readbyqxmd.com/read/28797665/functionalized-polymer-monoliths-with-carbamylated-amylose-for-the-enantioselective-reversed-phase-nano-liquid-chromatographic-separation-of-a-set-of-racemic-pharmaceuticals
#10
Ali Fouad, Adel A Marzouk, Samy M Ibrahim, Sobhy M El-Adl, Ashraf Ghanem
Here we report the first encapsulation of three carbamylated amylose namely R-, S- and R/S-amylose 2,3(3,5-dimethylphenylcarbamate)-6-ethylphenylcarbamate in organic polymer monolith in situ capillary columns. The columns were investigated for the enantioselective nano-liquid chromatographic separation of a set of racemic pharmaceuticals, namely, α- and β-blockers, anti-inflammatory drugs, antifungal drugs, norepinephrine-dopamine reuptake inhibitors, catecholamines, sedative hypnotics, antihistaminics, anticancer drugs, and antiarrhythmic drugs...
July 23, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28797314/intravenous-sotalol-use-in-a-complex-critically-ill-child-balancing-the-systems-in-choosing-antiarrhythmic-medication
#11
Michele M Pasierb, Stephen P Seslar
In critically ill children, multi-organ-system disease can influence the choice of antiarrhythmic medication. Intravenous therapy is often necessary. There is a scarcity of paediatric critical-care cases demonstrating the dosing, monitoring, and efficacy of intravenous sotalol. This case demonstrates the effective use of intravenous sotalol in an adolescent with renal, hepatic, and haematological dysfunctions.
August 11, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28797251/the-cardioprotective-and-antiarrhythmic-effects-of-nardostachys-chinensis-in-animal-and-cell-experiments
#12
Min Li, Xue Xu, Xinyu Yang, Joey S W Kwong, Hongcai Shang
BACKGROUND: Cardiovascular disease (CVD) is the leading cause of premature death throughout the world. An estimated 17.5 million people died from CVD in 2012, representing 31% of all global deaths. Nardostachys chinensis (NC), a typical traditional Chinese medicine (TCM), plays a crucial role in the management of patients with CVD, especially for those with cardiac arrhythmia. The purpose of this study was to evaluate the cardioprotective and antiarrhythmic effects of NC in animal and cell experiments...
August 10, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28791857/antiarrhythmic-properties-of-atrial-pacing
#13
REVIEW
Magdalena Kliś, Agnieszka Sławuta, Jacek Gajek
Bradycardia, atrial stretch and dilatation, autonomic nervous system disorders, and the presence of triggers such as atrial premature contractions, are factors which predispose a person to paroxysmal AF. Atrial pacing not only eliminates bradycardia but also prevents atrial premature contractions and dispersion of refractoriness, which are a substrate for atrial fibrillation. As the prolonged duration of atrial activation during pacing, especially from locations changing the physiological pattern of this activation (right atrium lateral wall, right atrium appendage), negatively influences both a mechanical and an electrical function of the atria, the atrial pacing site affects an atrial arrhythmogenesis...
March 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28781852/electrical-storm-in-the-inflamed-heart-ventricular-tachycardia-due-to-myocarditis
#14
Gustav Mattsson, Peter Magnusson
Electrical storm during the acute inflammatory phase caused by myocarditis may be resistant to antiarrhythmic therapy. Cardiac imaging including magnetic resonance tomography, positron emission tomography, and endomyocardial biopsy are crucial to guide potential therapeutic options. Optimal management involves a multidisciplinary approach, including expertise beyond cardiology.
August 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28780600/the-anti-influenza-drug-oseltamivir-reduces-atrial-fibrillation-in-an-experimental-whole-heart-model
#15
Gerrit Frommeyer, André Mittelstedt, Julian Wolfes, Christian Ellermann, Simon Kochhäuser, Patrick Leitz, Dirk G Dechering, Lars Eckardt
Recent experimental studies suggested direct effects of the anti-influenza drug oseltamivir on cardiac electrophysiology. We therefore aimed at analyzing potential antiarrhythmic effects of oseltamivir on atrial fibrillation (AF) in an experimental whole-heart model. Twelve rabbit hearts were isolated and Langendorff perfused. Thereafter, hearts were paced at cycle lengths of 350, 250, and 200 ms in the atrium. A standardized protocol employing atrial burst pacing induced AF in 4 of 12 hearts under baseline conditions (33%, 11 episodes)...
August 6, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28774803/temporal-stability-and-drivers-of-change-in-cardiac-autonomic-nervous-system-activity
#16
Mandy X Hu, Femke Lamers, Brenda W J H Penninx, Eco J C de Geus
OBJECTIVES: This study determined temporal stability of ambulatory measured cardiac autonomic activity for different time periods and investigated potential drivers of changes in this activity. METHODS: Data was drawn from baseline (n=2379), 2-year (n=2245), and 6-year (n=1876) follow-up from the Netherlands Study of Depression and Anxiety. Cardiac autonomic activity was measured with heart rate (HR), respiratory sinus arrhythmia (RSA) and pre-ejection period (PEP)...
July 27, 2017: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/28765943/acute-and-chronic-effects-of-taurine-magnesium-coordination-compound-on-cardiac-sodium-channel-nav1-5
#17
Lin Zhao, Xiao-Xu Yang, Yong-Qiang Yin, Hong Wu, Yi Kang, Jian-Shi Lou
It has been previously demonstrated that taurine magnesium coordination compound (TMCC) produces antiarrhythmic effects in vivo. The present study investigated the acute and chronic effect of TMCC on sodium channels in HEK cells stably expressing human cardiac Nav1.5 sodium channels. The current amplitude, activation and inactivation kinetics, recovery time from inactivation, and use‑dependent block of sodium channels were analyzed using the whole‑cell patch clamp technique. Western blotting was used to analyze Nav1...
July 31, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28765764/focal-ablation-for-atrial-tachycardia-from-the-double-exit-of-the-marshall-bundle-inducing-atrial-fibrillation
#18
Jung Yeon Chin, Jong Woo Kim, Ki-Woon Kang
Atrial fibrillation (AF) from the ligament/vein of Marshall (LOM/VOM) has previously been described. We report the case of a 23-year-old woman with an antiarrhythmic drug-resistant AF induced by two distinct atrial tachycardias (ATs). Focal ablation of these ATs from the double-exit of the Marshall bundle using a three-dimensional map eliminated AF triggering, even though pulmonary vein electrical isolation is the cornerstone for paroxysmal AF. Such mechanisms are important as triggering factors to plan ablation for paroxysmal AF...
August 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/28765762/paroxysmal-atrial-fibrillation-recurrences-and-quality-of-life-in-symptomatic-patients-a-crossover-study-of-flecainide-and-pilsicainide
#19
Tsuyoshi Shiga, Koichiro Yoshioka, Eiichi Watanabe, Hisako Omori, Masahiro Yagi, Yasuo Okumura, Naoki Matsumoto, Kengo Kusano, Chikara Oshiro, Takanori Ikeda, Naohiko Takahashi, Takashi Komatsu, Atsushi Suzuki, Tsuyoshi Suzuki, Yasuto Sato, Takeshi Yamashita
BACKGROUND: The therapeutic goals of atrial fibrillation (AF) patients are to reduce symptoms and prevent severe complications associated with AF. This study compared the efficacy of flecainide versus pilsicainide in reducing the frequency of AF and improving quality of life (QOL) in symptomatic paroxysmal AF patients without structural heart disease. METHODS: The Atrial Fibrillation and Quality Of Life (AF-QOL) study was a prospective, multicenter, randomized, open-label crossover study that compared flecainide and pilsicainide as antiarrhythmic drug therapy...
August 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/28765754/radiofrequency-catheter-ablation-is-effective-for-atrial-fibrillation-patients-with-hypertrophic-cardiomyopathy-by-decreasing-left-atrial-pressure
#20
Hiroki Ikenaga, Yukiko Nakano, Noboru Oda, Kazuyoshi Suenari, Akinori Sairaku, Takehito Tokuyama, Hiroshi Kawazoe, Hiroya Matsumura, Shunsuke Tomomori, Yasuki Kihara
BACKGROUND: Radiofrequency catheter ablation (RFCA) for atrial fibrillation (AF) refractory to medical therapy remains controversial in patients with hypertrophic cardiomyopathy (HCM); the acute effects on the direct left atrial (LA) pressure are not completely understood. METHODS: We consecutively studied patients with HCM (n=15) and without HCM (NHCM, n=106) who underwent extensive encircling pulmonary vein isolation for drug-refractory AF. We compared clinical parameters, echocardiographic parameters, electrophysiological parameters, LA pressures using hemodynamic catheterization and recurrence rate in both groups...
August 2017: Journal of Arrhythmia
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