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Digoxin toxicity

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https://www.readbyqxmd.com/read/29316267/elderly-patients-with-suspected-chronic-digoxin-toxicity-a-comparison-of-clinical-characteristics-of-patients-receiving-and-not-receiving-digoxin-fab
#1
Hooman Arbabian, Hwee Min Lee, Andis Graudins
OBJECTIVE: The aim of the present study was to compare clinical features of patients with elevated serum digoxin concentrations who were treated with digoxin-Fab with those where the immunotherapy was not given by a tertiary hospital toxicology service. METHODS: This was a retrospective series of patients with supratherapeutic serum digoxin concentrations referred to the toxicology service from August 2013 to October 2015. Data collected included demographics, presenting complaint, digoxin dose, other medications taken, serum digoxin, potassium and creatinine concentration on presentation and initial and post-digoxin-Fab heart rate...
January 8, 2018: Emergency Medicine Australasia: EMA
https://www.readbyqxmd.com/read/29315692/comprehensive-review-of-cardiovascular-toxicity-of-drugs-and-related-agents
#2
REVIEW
Přemysl Mladěnka, Lenka Applová, Jiří Patočka, Vera Marisa Costa, Fernando Remiao, Jana Pourová, Aleš Mladěnka, Jana Karlíčková, Luděk Jahodář, Marie Vopršalová, Kurt J Varner, Martin Štěrba
Cardiovascular diseases are a leading cause of morbidity and mortality in most developed countries of the world. Pharmaceuticals, illicit drugs, and toxins can significantly contribute to the overall cardiovascular burden and thus deserve attention. The present article is a systematic overview of drugs that may induce distinct cardiovascular toxicity. The compounds are classified into agents that have significant effects on the heart, blood vessels, or both. The mechanism(s) of toxic action are discussed and treatment modalities are briefly mentioned in relevant cases...
January 5, 2018: Medicinal Research Reviews
https://www.readbyqxmd.com/read/29210311/the-role-of-gut-microbiota-in-the-modulation-of-drug-action-a-focus-on-some-clinically-significant-issues
#3
Diego Currò
A healthy gut microbiota is necessary for the normal operation of several body functions, including gastrointestinal sensitivity and motility, lipid and glucid metabolism, immune surveillance, and host behavior. In addition, intestinal bacteria contribute to determining the pharmacological properties of several drugs by producing different drug metabolizing enzymes. Areas covered: Four enzymatic processes are discussed: prodrug activation; drug inactivation; drug deconjugation; and hydrolysis of natural glycosides with further metabolism of released aglycones...
December 6, 2017: Expert Review of Clinical Pharmacology
https://www.readbyqxmd.com/read/29208503/maternal-complications-induced-by-digoxin-treatment-of-fetal-tachycardia-a-retrospective-series-of-18-cases
#4
S Moatassim, S Touleimat, T Hazelzet, M-D Brasseur, A Diguet, I Durand, E Verspyck
OBJECTIVE: To evaluate maternal tolerance to digoxin, used alone or associated to other antiarrhythmic drugs in the management of fetal tachycardia. PATIENTS AND METHODS: This retrospective study was conducted at Rouen University Hospital between January 2009 and July 2016. All women who have received a treatment by either digoxin alone or associated with another antiarrhythmic drug for fetal tachycardia were included in the study. Maternal cardiac and extracardiac adverse effects were reported and comparisons between electrocardiograms before and during treatment with digoxin alone were performed...
December 2, 2017: Journal of Gynecology Obstetrics and Human Reproduction
https://www.readbyqxmd.com/read/29174112/mechanism-of-rhinella-icterica-spix-1824-toad-poisoning-using-in-vitro-neurobiological-preparations
#5
Raquel Soares Oliveira, Allan Pinto Leal, Barbara Ogata, Carlos Gabriel Moreira de Almeida, Douglas Silva Dos Santos, Leandro Homrich Lorentz, Cleci Menezes Moreira, Karla de Castro Figueiredo Bordon, Eliane Candiani Arantes, Tiago Gomes Dos Santos, Cháriston André Dal Belo, Lúcia Vinadé
The biological activity of Rhinella icterica toxic secretion (RITS) was evaluated on chick neuromuscular junctions, rat heart́s tissue and mice hippocampal slices. At chick biventer cervicis preparation, RITS (5, 10 and 20μg/mL) produced a concentration-independent irreversible neuromuscular blockade, which was preceded by a transitory increase of muscle twitch tension with the lowest concentration, in 120minutes recordings. In this set of experiments, RITS incubation partially prevented the curare neuromuscular blockade...
November 23, 2017: Neurotoxicology
https://www.readbyqxmd.com/read/29169235/hypermagnesuria-in-humans-following-acute-intravenous-administration-of-digoxin
#6
Nabil Abu-Amer, Eldar Priel, Steven J.D. Karlish, Zvi Farfel, Haim Mayan
Background: Hypomagnesemia is a known predisposing condition for the appearance of digitalis toxicity. The detection of a genetic form of Mg urinary wasting with hypomagnesemia being caused by a mutation in the γ subunit (FXYD2) of the Na,K-ATPase, the pharmacological target of Digoxin, prompted us to investigate whether Digoxin administration increases urinary Mg excretion. Methods: Two groups of subjects, with rapid atrial fibrillation, received intravenous Digoxin (n = 9) or verapamil (n = 8), for heart rate control...
October 30, 2017: Nephron
https://www.readbyqxmd.com/read/29130514/involvement-of-src-signaling-in-the-synergistic-effect-between-cisplatin-and-digoxin-on-cancer-cell-viability
#7
Duane Gischewski Pereira, Mariana Alves Resende Salgado, Sayonarah Carvalho Rocha, Hérica L Santos, José Augusto Fp Villar, Ruben G Contreras, Carlos Frederico Leite Fontes, Leandro Augusto Barbosa, Vanessa Faria Cortes
Cisplatin and other platinum-containing drugs have played a crucial role in anticancer treatments for over 30 years. However, treatment with cisplatin may cause serious side effects, such as myelosuppression, nausea, ototoxicity, nephrotoxicity and cell resistance processes. In addition, cardiotonic steroids, particularly digoxin, have recently been suggested to exert potent anticancer effects. Therefore, it is possible that the combined treatment of HeLa cells with cisplatin and digoxin can ameliorate the cytotoxic effects and decrease the side effects of cisplatin...
November 11, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28964110/a-model-of-cardiac-ryanodine-receptor-gating-predicts-experimental-ca-2-dynamics-and-ca-2-triggered-arrhythmia-in-the-long-qt-syndrome
#8
Dan Wilson, Bard Ermentrout, Jan Němec, Guy Salama
Abnormal Ca(2+) handling is well-established as the trigger of cardiac arrhythmia in catecholaminergic polymorphic ventricular tachycardia and digoxin toxicity, but its role remains controversial in Torsade de Pointes (TdP), the arrhythmia associated with the long QT syndrome (LQTS). Recent experimental results show that early afterdepolarizations (EADs) that initiate TdP are caused by spontaneous (non-voltage-triggered) Ca(2+) release from Ca(2+)-overloaded sarcoplasmic reticulum (SR) rather than the activation of the L-type Ca(2+)-channel window current...
September 2017: Chaos
https://www.readbyqxmd.com/read/28960089/efficacy-and-safety-of-dronedarone-in-the-treatment-of-patients-with-atrial-fibrillation
#9
Mohammed Hasan Khan, Yogita Rochlani, Wilbert S Aronow
Dronedarone, a derivative of amiodarone with structural modifications, was designed to have similar electrophysiological properties with a less toxic profile. Areas covered: Brief overview of the pharmacology of dronedarone followed by a summary of randomized clinical trials testing the efficacy of dronedarone in maintaining normal sinus rhythm and clinical outcomes associated with these trials. In depth discussion and commentary on trial findings which may seem contradictory at first approach and brief discussion of post-marketing surveillance studies...
October 6, 2017: Expert Opinion on Drug Safety
https://www.readbyqxmd.com/read/28912988/accidental-intrathecal-administration-of-digoxin-in-an-elderly-male-with-end-stage-renal-disease
#10
Claudia Martin, Kitae Kevin Park, Antonio Liu
The systemic effects of digoxin toxicity have been well-known. However, there has been no case citing the effects of intrathecal digoxin in light of end-stage renal disease in the elderly. Here, we report on the case of the successful management of accidental intrathecal digoxin administration in an elderly male with end-stage renal disease.
2017: Case Reports in Neurological Medicine
https://www.readbyqxmd.com/read/28906558/effects-of-rolapitant-administered-intravenously-or-orally-on-the-pharmacokinetics-of-digoxin-p-glycoprotein-substrate-and-sulfasalazine-breast-cancer-resistance-protein-substrate-in-healthy-volunteers
#11
Xiaodong Wang, Zhi-Yi Zhang, Sujata Arora, Lorraine Hughes, Jing Wang, Daniel Powers, Jennifer Christensen, Sharon Lu, Vikram Kansra
Rolapitant is a selective and long-acting neurokinin-1 receptor antagonist approved in an oral formulation in combination with other antiemetic agents for the prevention of delayed chemotherapy-induced nausea and vomiting in adults. Four open-label phase 1 studies evaluated the safety and drug-drug interactions of a single dose of rolapitant given intravenously (166.5 mg) or orally (180 mg) with oral digoxin (0.5 mg) or sulfasalazine (500 mg), probe substrates for the P-glycoprotein (P-gp) and breast cancer resistance protein (BCRP), respectively...
September 14, 2017: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28869702/the-prevalence-and-preventability-of-potentially-relevant-drug-drug-interactions-in-patients-admitted-for-cardiovascular-diseases-a-cross-sectional-study
#12
Milena Kovačević, Sandra Vezmar Kovačević, Branislava Miljković, Slavica Radovanović, Predrag Stevanović
AIM: The aim was to describe the type and prevalence of potentially relevant drug-drug interactions (pDDIs) in a population of patients admitted for cardiovascular diseases (CVD), and management strategies for reducing the occurrence of pDDIs. METHODS: A retrospective cross-sectional study was performed on Cardiology ward of University Clinical Hospital Center in Belgrade, Serbia. A total of 527 patients, with more than one prescription during hospital stay, were enrolled in this study...
October 2017: International Journal of Clinical Practice
https://www.readbyqxmd.com/read/28807352/unusual-digoxin-toxicity-with-myocardial-injury
#13
Mohamad Jihad Mansour, Maher Kalaoui, Elie Chammas, Omar Hamoui, Tarek Fawaz, Wael A AlJaroudi
A 38-year-old healthy male presented with vomiting and profuse diarrhea, associated with blurry and yellow coloration of the vision (xanthopsia). Laboratory workup was unremarkable, except for hyperkalemia (K 5.2 mEq/L) and mildly elevated troponin level 0.11 ng/mL (cut-off value 0.08). An electrocardiogram showed sinus bradycardia with deep scooping of the T waves. Although the patient denied intake of any drugs, herbs, consumption of plants, a digoxin level was drawn and was significantly elevated >5ng/mL (therapeutic range 0...
July 12, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28693242/bufalin-sensitizes-human-bladder-carcinoma-cells-to-trail-mediated-apoptosis
#14
Kyung-Hwa Kang, Min Ho Han, Jin-Woo Jeong, Cheol Park, Sang-Hyup Lee, Hai Woong Lee, Sang Hoon Hong, Yung Hyun Choi, Su Hyun Hong
Tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL), a member of the TNF superfamily, has garnered interest as it is relatively non-toxic to normal cells, but selectively induces apoptotic cell death in multiple types of transformed or malignant cells. Bufalin is the major digoxin-like immunoreactive component of Sum Su, which is obtained from the skin and parotid venom gland of the toad. Bufalin is known to inhibit cell proliferation and induce apoptosis in a variety of cancer cells. The present study investigated whether bufalin promoted TRAIL-induced apoptotic cell death...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28652884/drug-absorption-related-nephrotoxicity-assessment-on-an-intestine-kidney-chip
#15
Zhongyu Li, Wentao Su, Yujuan Zhu, Tingting Tao, Dong Li, Xiaojun Peng, Jianhua Qin
Drug absorption in the intestine is tightly related to drug-induced nephrotoxicity, which is a relatively common side effect in clinical practice. It highlights a great need to develop predictive models with high accuracy in the early stage during new drug discovery and development. Herein, we presented a novel intestine-kidney chip, which recapitulated drug absorption in the intestine and its resultant drug toxicity on the kidney. This work aims to provide an integrated tool for accurate assessment of drug absorption-related nephrotoxicity in vitro...
May 2017: Biomicrofluidics
https://www.readbyqxmd.com/read/28463019/fatal-cardiac-glycoside-poisoning-due-to-mistaking-foxglove-for-comfrey
#16
I-Lin Wu, Jiun-Hao Yu, Chih-Chuan Lin, Chen-June Seak, Kent R Olson, Hsien-Yi Chen
CONTEXT: Accidental ingestion of foxglove (Digitalis purpurea) can cause significant cardiac toxicity. We report a patient who ingested foxglove mistaking it for comfrey and developed refractory ventricular arrhythmias. The patient died despite treatment with digoxin-specific antibody fragments (DSFab) and veno-arterial extracorporeal membrane oxygenation (VA-ECMO). CASE DETAILS: A 55-year-old woman presented to the emergency department with nausea, vomiting and generalized weakness eight hours after drinking "comfrey" tea...
August 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28444654/digoxin-toxicity-in-a-neonate-caused-by-the-interaction-with-carvedilol
#17
Alexia Moser-Bracher, Christian Balmer, Anna Cavigelli, Aylin Satir, Angela Caduff Good, Dietrich Klauwer
No abstract text is available yet for this article.
March 2017: Klinische Pädiatrie
https://www.readbyqxmd.com/read/28421551/macrolides-digoxin-toxicity-and-the-risk-of-sudden-death-a-population-based-study
#18
Kieran L Quinn, Erin M Macdonald, Tara Gomes, Muhammad M Mamdani, Anjie Huang, David N Juurlink
INTRODUCTION: Digoxin is commonly prescribed to elderly patients with heart failure and atrial fibrillation, and macrolide antibiotics markedly increase the risk of digoxin toxicity. OBJECTIVE: The aim was to determine whether, in older patients receiving digoxin, macrolide antibiotics are associated with sudden death. METHODS: We used a population-based, nested, case-control design from January 1, 1994 to December 31, 2012 in a cohort of Ontario residents aged 66 years or older prescribed digoxin...
September 2017: Drug Safety: An International Journal of Medical Toxicology and Drug Experience
https://www.readbyqxmd.com/read/28398365/-digitalis-a-drug-to-be-scrapped
#19
REVIEW
Franco Cosmi, Barbara Tarquini, Beatrice Mariottoni, Deborah Cosmi
We performed a comprehensive review of the scientific literature on the use of digoxin in heart failure and atrial fibrillation. In congestive heart failure (CHF) there is only one randomized trial with a statistical sample sufficiently large. In this trial (DIG trial), which enrolled patients with systolic left ventricular dysfunction in sinus rhythm, digoxin had a neutral action on mortality and modestly reduced the overall need of hospitalization. The study was conducted in the pre-beta-blocker era and, therefore, it has a doubtful application to the current clinical context...
February 2017: Giornale Italiano di Cardiologia
https://www.readbyqxmd.com/read/28374970/human-bj-fibroblasts-is-an-alternative-to-mouse-balb-c-3t3-cells-in-in-vitro-neutral-red-uptake-assay
#20
Marika Mannerström, Tarja Toimela, Jertta-Riina Sarkanen, Tuula Heinonen
The OECD GD 129 BALB/c 3T3 neutral red uptake (NRU) assay is a standardized test method for estimating starting dose for an acute oral systemic toxicity test in rodents. Mouse BALB/c 3T3 fibroblasts are the most commonly used cells in the NRU assay. We have previously transferred and validated BALB/c 3T3 NRU assay in our GLP laboratory. Subsequently, in order to obtain more human-relevant cytotoxicity data, we performed an intralaboratory validation using human BJ fibroblasts in the NRU assay instead of mouse BALB/c 3T3 fibroblasts...
April 4, 2017: Basic & Clinical Pharmacology & Toxicology
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