4,448 results match your criteria procainamide hydrochloride


Electrical or pharmacologic cardioversion for atrial fibrillation in the ED?

CJEM 2021 Jan 10;23(1):32-33. Epub 2020 Dec 10.

Department of Emergency Medicine, Room C231, Foothills Medical Centre, University of Calgary, 1403-29 Street NW, Calgary, AB, T2N 2T9, Canada.

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January 2021

Procainamide for the Rapid Suppression of Premature Ventricular Contractions: An (Almost) Forgotten Tool in the Cardiologist's Armamentarium.

Diagnostics (Basel) 2021 Feb 20;11(2). Epub 2021 Feb 20.

Cardiac Imaging Unit, NorthWest Heart Centre, Manchester University NHS Foundation Trust, Manchester M23 9LT, UK.

In the last few years, cardiac magnetic resonance (CMR) imaging has progressively acquired a central role in the diagnosis and management of patients with ventricular arrhythmias (VA) [... Read More

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February 2021

Tsetse salivary glycoproteins are modified with paucimannosidic N-glycans, are recognised by C-type lectins and bind to trypanosomes.

PLoS Negl Trop Dis 2021 Feb 2;15(2):e0009071. Epub 2021 Feb 2.

Department of Vector Biology, Liverpool School of Tropical Medicine, Liverpool, United Kingdom.

African sleeping sickness is caused by Trypanosoma brucei, a parasite transmitted by the bite of a tsetse fly. Trypanosome infection induces a severe transcriptional downregulation of tsetse genes encoding for salivary proteins, which reduces its anti-hemostatic and anti-clotting properties. To better understand trypanosome transmission and the possible role of glycans in insect bloodfeeding, we characterized the N-glycome of tsetse saliva glycoproteins. Read More

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February 2021

Bolus Intravenous Procainamide in Patients with Frequent Ventricular Ectopics during Cardiac Magnetic Resonance Scanning: A Way to Ensure High Quality Imaging.

Diagnostics (Basel) 2021 Jan 27;11(2). Epub 2021 Jan 27.

First Department of Cardiology, AHEPA Hospital, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 546 36 Thessaloniki, Greece.

Acquiring high-quality cardiac magnetic resonance (CMR) images in patients with frequent ventricular arrhythmias remains a challenge. We examined the safety and efficacy of procainamide when administered on the scanner table prior to CMR scanning to suppress ventricular ectopy and acquire high-quality images. Fifty consecutive patients (age 53. Read More

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January 2021

The Analysis of Human Serum N-Glycosylation in Patients with Primary and Metastatic Brain Tumors.

Life (Basel) 2021 Jan 6;11(1). Epub 2021 Jan 6.

Institute of Chemistry, Faculty of Materials Science and Engineering, University of Miskolc, 3515 Miskolc, Hungary.

The identification of patients with different brain tumors is solely built on imaging diagnostics, indicating the need for novel methods to facilitate disease recognition. Glycosylation is a chemical modification of proteins, reportedly altered in several inflammatory and malignant diseases, providing a potential alternative route for disease detection. In this paper, we report the quantitative analysis of serum N-glycosylation of patients diagnosed with primary and metastatic brain tumors. Read More

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January 2021

[Type I Brugada electrocardiographic pattern associated with Influenza B and fever. Report of a case].

Rev Med Chil 2020 Sep;148(9):1368-1370

Unidad Coronaria, Hospital Militar de Santiago, Santiago, Chile.

We report a 44-year-old male who was admitted for Influenza B and fever, presenting a type I Brugada pattern on the electrocardiogram. He evolved without cardiovascular symptoms. The pharmacological test with intravenous Procainamide reproduced type I Brugada pattern and the programmed electrical stimulation was negative for ventricular arrhythmias. Read More

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September 2020

Interleukin 4 deficiency limits the development of a lupus-like disease in mice triggered by phospholipids in a non-bilayer arrangement.

Scand J Immunol 2021 Mar 25;93(3):e13002. Epub 2020 Dec 25.

Laboratorio de Biomembranas, Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, México.

Non-bilayer phospholipids arrangements (NPAs) are transient molecular associations different from lipid bilayers. When they become stable, they can trigger a disease in mice resembling human lupus, which is mainly characterized by the production of anti-NPA IgG antibodies. NPAs are stabilized on liposomes or cell bilayers by the drugs procainamide or chlorpromazine, which produce drug-induced lupus in humans. Read More

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Coxsackievirus B Type 4 Infection in β Cells Downregulates the Chaperone Prefoldin URI to Induce a MODY4-like Diabetes via Silencing.

Cell Rep Med 2020 Oct 20;1(7):100125. Epub 2020 Oct 20.

Molecular Oncology Programme, Growth Factors, Nutrients and Cancer Group, Centro Nacional de Investigaciones Oncológicas, CNIO, Madrid 28029, Spain.

Enteroviruses are suspected to contribute to insulin-producing β cell loss and hyperglycemia-induced diabetes. However, mechanisms are not fully defined. Here, we show that coxsackievirus B type 4 (CVB4) infection in human islet-engrafted mice and in rat insulinoma cells displays loss of unconventional prefoldin RPB5 interactor (URI) and PDX1, affecting β cell function and identity. Read More

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October 2020

Amiodarone-Induced Neutropenia: An Uncommon Side Effect of a Common Drug.

Cureus 2020 Oct 12;12(10):e10913. Epub 2020 Oct 12.

Internal Medicine, MedStar Washington Hospital Center, Washington DC, USA.

Amiodarone is widely used as an antiarrhythmic agent for the treatment of both supraventricular and ventricular arrhythmias in various inpatient as well as outpatient settings. Classified as a class III antiarrhythmic agent, it acts mainly by inhibition of potassium channels in the cardiac muscle. Adverse effects are quite common and usually involve pulmonary, gastrointestinal, endocrine, dermatologic, or neuromuscular systems. Read More

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October 2020

Arylamine N-acetyltransferase acetylation polymorphisms: paradigm for pharmacogenomic-guided therapy- a focused review.

Expert Opin Drug Metab Toxicol 2021 Jan 3;17(1):9-21. Epub 2020 Nov 3.

Bluewater Diagnostic Laboratory , Mount Washington, KY, USA.

Introduction: The N-acetylation polymorphism has been the subject of comprehensive reviews describing the role of arylamine N-acetyltransferase 2 (NAT2) in the metabolism of numerous aromatic amine and hydrazine drugs.

Areas Covered: We describe and review data that more clearly defines the effects of haplotypes and genotypes on the expression of acetylator phenotype towards selected drugs within human hepatocytes in vitro, within human hepatocyte cultures in situ, and clinical measures such as bioavailability, plasma metabolic ratios of parent to N-acetyl metabolite, elimination rate constants and plasma half-life, and/or clearance determinations in human subjects. We review several drugs (isoniazid, hydralazine, sulfamethazine, amifampridine, procainamide, sulfasalazine, amonafide and metamizole) for which phenotype-guided therapy may be important. Read More

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January 2021

Brugada syndrome unmasked by fever: a comprehensive review of literature.

J Community Hosp Intern Med Perspect 2020 Jun 14;10(3):224-228. Epub 2020 Jun 14.

Saint Mary Medical Center, Langhorne, PA, USA.

Background: The Brugada pattern is identified on the EKG by a coved ST-segment elevation accompanied by a negative T wave in the early precordial leads in the absence of a cardiac structural abnormality. Brugada pattern and Brugada syndrome should be differentiated, as the latter is associated with an increased risk of sudden cardiac death.

Methods: The literature was searched using multiple databases to identify all the articles on Brugada pattern. Read More

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Epigenetic control of natriuretic peptides: implications for health and disease.

Cell Mol Life Sci 2020 Dec 18;77(24):5121-5130. Epub 2020 Jun 18.

IRCCS Neuromed, Pozzilli, Isernia, Italy.

The natriuretic peptides (NPs) family, including a class of hormones and their receptors, is largely known for its beneficial effects within the cardiovascular system to preserve regular functions and health. The concentration level of each component of the family is of crucial importance to guarantee a proper control of both systemic and local cardiovascular functions. A fine equilibrium between gene expression, protein secretion and clearance is needed to achieve the final optimal level of NPs. Read More

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December 2020

A randomized multicenter clinical trial to evaluate the efficacy of melatonin in the prophylaxis of SARS-CoV-2 infection in high-risk contacts (MeCOVID Trial): A structured summary of a study protocol for a randomised controlled trial.

Trials 2020 Jun 3;21(1):466. Epub 2020 Jun 3.

Clinical Pharmacology Department, Clinical Trial Unit, La Paz University Hospital - IdiPAZ, Paseo de la Castellana, 261, 28046, Madrid, Spain.

Objectives: Primary objective: to evaluate the efficacy of melatonin as a prophylactic treatment on prevention of symptomatic SARS-CoV-2 infection among healthcare workers at high risk of SARS-CoV-2 exposure. Secondary objectives: To evaluate the efficacy of melatonin as a prophylactic treatment on prevention of asymptomatic SARS-CoV-2 infection.To evaluate the efficacy of melatonin to prevent the development of severe COVID-19 in the participants enrolled in this study who develop SARS-CoV-2 infection along the trial. Read More

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Propoxur resistance associated with insensitivity of acetylcholinesterase (AChE) in the housefly, Musca domestica (Diptera: Muscidae).

Sci Rep 2020 05 21;10(1):8400. Epub 2020 May 21.

Department of Entomology, China Agricultural University, Beijing, 100193, China.

Two unique housefly strains, PSS and N-PRS (near-isogenic line with the PSS), were used to clarify the mechanisms associated with propoxur resistance in the housefly, Musca domestica. The propoxur-selected resistant (N-PRS) strain exhibited >1035-fold resistance to propoxur and 1.70-, 12. Read More

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Successful management of ventricular fibrillation and ventricular tachycardia using defibrillation and intravenous amiodarone therapy in a cat.

J Vet Emerg Crit Care (San Antonio) 2020 Jul 13;30(4):474-480. Epub 2020 May 13.

Department of Small Animal Emergency and Critical Care, The Hebrew University Veterinary Teaching Hospital, Koret School of Veterinary Medicine, Hebrew University of Jerusalem, Rehovot, Israel.

Objective: To describe the successful management of ventricular fibrillation (VF) and ventricular tachycardia (VT) using cardiopulmonary resuscitation, including defibrillation, followed by continuous rate infusion of IV amiodarone, in a cat with cardiac arrest secondary to tachyarrhythmia.

Case Summary: A 12-year-old previously healthy neutered male Scottish Fold cat presented following an acute episode of collapse. Initial physical examination revealed severe tachycardia and cardiovascular collapse. Read More

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Robustness in glycosylation systems: effect of modified monosaccharides, acceptor decoys and azido sugars on cellular nucleotide-sugar levels and pattern of N-linked glycosylation.

Mol Omics 2020 08 30;16(4):377-386. Epub 2020 Apr 30.

Department of Chemical & Biological Engineering, Biomedical Engineering and Medicine, University at Buffalo, State University of New York, Buffalo, NY 14260, USA.

Small molecule monosaccharide analogs (e.g. 4F-GlcNAc, 4F-GalNAc) and acceptor decoys (e. Read More

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Antiarrhythmic drug effects on premature beats are partly determined by prior cardiac activation frequency in perfused guinea-pig heart.

Authors:
Oleg E Osadchii

Exp Physiol 2020 05 20;105(5):819-830. Epub 2020 Apr 20.

Department of Biomedical Sciences, University of Copenhagen, Copenhagen N, Denmark.

New Findings: What is the central question of this study? Can antiarrhythmic drug effects on repolarization, conduction time and excitation wavelength in premature beats be determined by prior cardiac activation frequency? What is the main finding and its importance? In premature beats induced after a series of cardiac activations at a slow rate, antiarrhythmics prolong repolarization but evoke little or no conduction delay, thus increasing the excitation wavelength, which indicates an antiarrhythmic effect. Fast prior activation rate attenuates prolongation of repolarization, while amplifying the conduction delay induced by drugs, which translates into the reduced excitation wavelength, indicating proarrhythmia. These findings suggest that a sudden increase in heart rate can shape adverse pharmacological profiles in patients with ventricular ectopy. Read More

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Electrical versus pharmacological cardioversion for emergency department patients with acute atrial fibrillation (RAFF2): a partial factorial randomised trial.

Lancet 2020 02;395(10221):339-349

Department of Emergency Medicine, Ottawa Hospital Research Institute, University of Ottawa, Ottawa, ON, Canada.

Background: Acute atrial fibrillation is the most common arrythmia treated in the emergency department. Our primary aim was to compare conversion to sinus rhythm between pharmacological cardioversion followed by electrical cardioversion (drug-shock), and electrical cardioversion alone (shock-only). Our secondary aim was to compare the effectiveness of two pad positions for electrical cardioversion. Read More

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February 2020

Intravenous Sotalol for the Treatment of Ventricular Dysrhythmias in an Infant on Extracorporeal Membrane Oxygenation.

Pediatr Cardiol 2020 Feb 29;41(2):418-422. Epub 2019 Oct 29.

Division of Cardiology, Department of Pediatrics, Rush University Medical College, 1753 W. Congress Pkwy., Pavilion 654, Chicago, IL, 60612, USA.

Sotalol is a class III anti-arrhythmic agent with beta receptor blocking properties. Intravenous (IV) sotalol may be useful to treat refractory atrial and ventricular arrhythmias. A report on the efficacy and safety of IV sotalol in an infant on extracorporeal membrane oxygenation (ECMO) and continuous renal replacement therapy (CRRT), who developed refractory ventricular arrhythmias following surgery for congenital heart disease. Read More

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February 2020

Brugada syndrome & AKAP9: Reconciling clinical findings with diagnostic uncertainty.

J Electrocardiol 2019 Nov - Dec;57:119-121. Epub 2019 Sep 7.

Department of Cardiology, St. Joseph's Health, New York Medical College, Paterson, NJ, USA. Electronic address:

Introduction: Brugada Syndrome typically presents with sudden nocturnal arrhythmias. Diagnosis may be challenging due to variable and transient electrocardiogram patterns and nondiagnostic provocation studies. Genetic testing can establish the etiology, but results may be inconclusive with variants of uncertain significance. Read More

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September 2019

Isoniazid-Induced Systemic Lupus Erythematosus: A Case Report.

Drug Saf Case Rep 2019 Sep 20;6(1). Epub 2019 Sep 20.

Department of Pharmacology, Government Medical College, Bhavnagar, Gujarat, 364001, India.

Systemic lupus erythematosus (SLE) can be induced by various medications, such as hydralazine, procainamide, isoniazid, methyldopa, chlorpromazine, quinidine, and minocycline. A patient was admitted complaining of fever with chills and rigor. After being diagnosed with tuberculous meningitis, the patient was given antituberculosis treatment. Read More

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September 2019

Brugada syndrome in a young patient with type 1 myotonic dystrophy requiring an implantable cardioverter defibrillator for primary prevention: a case report.

Eur Heart J Case Rep 2019 Jun;3(2)

2nd Department of Cardiology, University of Ioannina, Stavros Niarchos Avenue, Ioannina, Greece.

Background : Cardiac electrical disturbances represent the most frequent cardiac manifestations of myotonic dystrophy Type 1 (MD1). Limited data suggest that the prevalence of Brugada syndrome in MD1 may be increased compared to the general population.

Case Summary : We report a case of a 22-year-old asymptomatic man with repolarization abnormalities in leads V1-V3 suggestive of Type III Brugada pattern. Read More

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A Multicenter Randomized Trial to Evaluate a Chemical-first or Electrical-first Cardioversion Strategy for Patients With Uncomplicated Acute Atrial Fibrillation.

Acad Emerg Med 2019 09 19;26(9):969-981. Epub 2019 Aug 19.

Department of Emergency Medicine, University of Alberta Hospital and the University of Alberta, Edmonton, AB, Canada.

Background: Emergency department (ED) patients with uncomplicated atrial fibrillation (AF) of less than 48 hours may be safely managed with rhythm control. Although both chemical-first and electrical-first strategies have been advocated, there are no comparative effectiveness data to guide clinicians.

Methods: At six urban Canadian centers, ED patients ages 18 to 75 with uncomplicated symptomatic AF of less than 48 hours and CHADS score of 0 or 1 were randomized using concealed allocation in a 1:1 ratio to one of the following strategies: 1) chemical cardioversion with procainamide infusion, followed by electrical countershock if unsuccessful; or 2) electrical cardioversion, followed by procainamide infusion if unsuccessful. Read More

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September 2019

Pharmacokinetic evaluation of a sustained-release compounded procainamide preparation after 24-h (acute) administration in normal dogs.

J Vet Cardiol 2019 Aug 18;24:58-63. Epub 2019 Jun 18.

Department of Small Animal Medicine and Surgery, College of Veterinary Medicine, University of Georgia, 501 DW Brooks Drive, Athens, GA, 30602, USA.

Introduction: The objective of the present study was to evaluate the pharmacokinetics of a compounded sustained-release procainamide formulation in normal dogs.

Animals: Six healthy, purpose-bred mixed-breed dogs participated in the study.

Methods: In phase I, two dogs were administered oral procainamide (30 mg/kg), and plasma was obtained to determine plasma concentration ranges and duration. Read More

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Poly(amidoamine) dendrimer-coated magnetic nanoparticles for the fast purification and selective enrichment of glycopeptides and glycans.

J Sep Sci 2019 Aug 7. Epub 2019 Aug 7.

Department of Chemistry, Hacettepe University, Ankara, Turkey.

Glycosylated proteins modulate various important functions of organisms. To reveal the functions of glycoproteins, in-depth characterization studies are necessary. Although mass spectrometry is a very efficient tool for glycoproteomic and glycomic studies, efficient sample preparation methods are required prior to analyses. Read More

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Combining Glucose Units, /, and Collision Cross Section Values: Multiattribute Data for Increased Accuracy in Automated Glycosphingolipid Glycan Identifications and Its Application in Triple Negative Breast Cancer.

Anal Chem 2019 07 27;91(14):9078-9085. Epub 2019 Jun 27.

Analytics Group, Bioprocessing Technology Institute , Agency for Science, Technology and Research (A*STAR) , Singapore 138668.

Glycan head-groups attached to glycosphingolipids (GSLs) found in the cell membrane bilayer can alter in response to external stimuli and disease, making them potential markers and/or targets for cellular disease states. To identify such markers, comprehensive analyses of glycan structures must be undertaken. Conventional analyses of fluorescently labeled glycans using hydrophilic interaction high-performance liquid chromatography (HILIC) coupled with mass spectrometry (MS) provides relative quantitation and has the ability to perform automated glycan assignments using glucose unit (GU) and mass matching. Read More

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N-acetyltransferase: the practical consequences of polymorphic activity in man.

Xenobiotica 2020 Jan 4;50(1):77-91. Epub 2019 Jun 4.

Section of Computational and Systems Medicine, Faculty of Medicine, Imperial College London, London, UK.

Over the years, numerous studies have supported the premise that individuals possessing the "slow acetylator" phenotype are more at risk from developing drug side-effects. Most prominent amongst these reports are those concerned with hepatotoxicity and peripheral neuropathy following treatment with isoniazid, lupus-like symptoms during procainamide therapy and experiencing hypersensitivity reactions to the various sulphonamide derivatives. Similarly, "slow acetylators" undergoing heavy exposure to arylamines and related carcinogens are more likely to develop bladder cancer. Read More

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January 2020