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QT prolonging medication

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https://www.readbyqxmd.com/read/28497864/valbenazine-for-tardive-dyskinesia-a-systematic-review-of-the-efficacy-and-safety-profile-for-this-newly-approved-novel-medication-what-is-the-number-needed-to-treat-number-needed-to-harm-and-likelihood-to-be-helped-or-harmed
#1
REVIEW
Leslie Citrome
OBJECTIVE: The objective of this systematic review was to describe the efficacy, tolerability, and safety of valbenazine for the treatment of tardive dyskinesia (TD). DATA SOURCES: The pivotal registration trials were accessed by querying http://www.ncbi.nlm.nih.gov/pubmed/ and http://www.clinicaltrials.gov, for the search terms 'valbenazine' OR 'NBI-98854', and by also querying the EMBASE (Elsevier) commercial database for clinical poster abstracts, and by asking the manufacturer for copies of posters presented at congresses...
May 12, 2017: International Journal of Clinical Practice
https://www.readbyqxmd.com/read/28496937/amiodarone-induced-third-degree-atrioventricular-block-and-extreme-qt-prolongation-generating-torsade-des-pointes-in-paroxysmal-atrial-fibrillation
#2
Orlando Robert Sequeira, Nelson Javier Aquino, Nancy Beatriz Gómez, Laura Beatriz García, Cristina Cáceres, Oscar A Lovera, Osmar Antonio Centurión
Amiodarone is still the most potent antiarrhythmic drug in the prevention of life threatening ventricular arrhythmias and demonstrates a very low incidence of torsade de pointes. An unusual case of an 81-year-old woman who developed serious abnormalities of the conduction system of the heart and torsade des pointes during intravenous infusion of amiodarone for the treatment of paroxysmal atrial fibrillation is described. To the best of our knowledge, this is the first case showing an association of intravenous amiodarone-induced third degree atrioventricular block and extreme QT interval prolongation generating torsade des pointes in a patient with paroxysmal atrial fibrillation who required an implantable cardioverter-defibrillator...
October 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/28495651/percentile-categorization-of-qt-interval-as-an-approach-for-identifying-adult-patients-at-risk-for-cardiovascular-death
#3
Reza Mohebi, Ayesha Jehan, Aaron Grober, Victor Froelicher
BACKGROUND: The results from studies of the association of QT prolongation with CVD have been inconsistent. OBJECTIVES: To compare the major correction formulas to percentile values of QT for heart rate ranges as to their ability to remove the relationship of QT to heart rate and to predict cardiovascular death(CVD). METHODS: Participants were 16,531 veterans who had an initial ECG at the Veterans Affairs Medical Center, Palo Alto between March 31, 1987, and December 20, 1999 and were followed for CVD...
May 8, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28488266/qt-interval-prolongation-in-opioid-agonist-treatment-analysis-of-continuous-12-lead-electrocardiogram-recordings
#4
Geoffrey K Isbister, Amanda L Brown, Anthony Gill, Alexander J Scott, Leonie Calver, Adrian J Dunlop
BACKGROUND: Methadone is a widely used opioid agonist treatment associated with QT prolongation and torsades des pointes. We investigated the QT interval in patients treated with methadone or buprenorphine using continuous 12-lead holter recordings. METHODS: We prospectively recorded 24 h holters in patients prescribed methadone or buprenorphine, compared to controls. After their normal dose a continuous 12-lead holter recorder was attached for 24 h. Digital electrocardiograms were extracted hourly from the holter recordings...
May 9, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28486375/domperidone-for-lactation-what-health-care-providers-need-to-know
#5
Catherine A Sewell, Christina Y Chang, Miriam M Chehab, Christine P Nguyen
This commentary serves to raise health care provider awareness about the regulatory status and available evidence regarding domperidone for insufficient lactation. Breastfeeding provides significant health benefits for mothers and infants, and insufficient milk production remains the most common reason for early weaning. Domperidone, a dopamine receptor antagonist that may increase milk production, is not approved for any human use in the United States. It is approved in some countries for certain gastrointestinal disorders, but is not approved in any country for lactation enhancement...
June 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28480041/risk-of-qt-prolongation-and-torsade-de-pointes-associated-with-exposure-to-hydroxyzine-re-evaluation-of-an-established-drug
#6
Anne-Françoise Schlit, Annie Delaunois, Aurore Colomar, Branderley Claudio, Luca Cariolato, Rossen Boev, Jean-Pierre Valentin, Christopher Peters, Victor S Sloan, Jürgen W G Bentz
Several noncardiac drugs have been linked to cardiac safety concerns, highlighting the importance of post-marketing surveillance and continued evaluation of the benefit-risk of long-established drugs. Here, we examine the risk of QT prolongation and/or torsade de pointes (TdP) associated with the use of hydroxyzine, a first generation sedating antihistamine. We have used a combined methodological approach to re-evaluate the cardiac safety profile of hydroxyzine, including: (1) a full review of the sponsor pharmacovigilance safety database to examine real-world data on the risk of QT prolongation and/or TdP associated with hydroxyzine use and (2) nonclinical electrophysiological studies to examine concentration-dependent effects of hydroxyzine on a range of human cardiac ion channels...
June 2017: Pharmacology Research & Perspectives
https://www.readbyqxmd.com/read/28460758/subclinical-ventricular-repolarization-abnormality-in-uncontrolled-compared-with-controlled-treated-hypertension
#7
Marwan S M Al-Nimer, Ismail I Hussein
BACKGROUND: Antihypertensive medications have variable effects on the duration of the QT interval. This study aims to demonstrate the subclinical ventricular conduction defect in treating hypertensive patients taking in consideration the status of the blood pressure control with the antihypertensive agents. METHODS: This cross-section study was performed at the Departments of Physiology and Pharmacology, College of Medicine, Al-Mustansiriya University, Baghdad, Iraq...
March 2017: Indian Heart Journal
https://www.readbyqxmd.com/read/28429460/automated-t-wave-analysis-can-differentiate-acquired-qt-prolongation-from-congenital-long-qt-syndrome
#8
Alan Sugrue, Peter A Noseworthy, Vaclav Kremen, J Martijn Bos, Bo Qiang, Ram K Rohatgi, Yehu Sapir, Zachi I Attia, Peter Brady, Pedro J Caraballo, Samuel J Asirvatham, Paul A Friedman, Michael J Ackerman
BACKGROUND: Prolongation of the QT on the surface electrocardiogram can be due to either genetic or acquired causes. Distinguishing congenital long QT syndrome (LQTS) from acquired QT prolongation has important prognostic and management implications. We aimed to investigate if quantitative T-wave analysis could provide a tool for the physician to differentiate between congenital and acquired QT prolongation. METHODS: Patients were identified through an institution-wide computer-based QT screening system which alerts the physician if the QTc ≥ 500 ms...
April 21, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28417026/cardiovascular-complications-of-acute-amphetamine-abuse-cross-sectional-study
#9
Elham Bazmi, Farinaz Mousavi, Leila Giahchin, Tahmineh Mokhtari, Behnam Behnoush
OBJECTIVES: This study aimed to evaluate cardiovascular complications among patients who abuse amphetamines. METHODS: This cross-sectional study took place between April 2014 and April 2015 among 3,870 patients referred to the Toxicology Emergency Department of Baharlou Hospital, Tehran University of Medical Sciences, Tehran, Iran. Those with clinical signs of drug abuse and positive urine screening tests were included in the study, while cases of chronic abuse were excluded...
February 2017: Sultan Qaboos University Medical Journal
https://www.readbyqxmd.com/read/28407228/deleterious-protein-altering-mutations-in-the-scn10a-voltage-gated-sodium-channel-gene-are-associated-with-prolonged-qt
#10
Maen D Abou Ziki, Sara B Seidelmann, Emily Smith, Gourg Atteya, Yuexin Jiang, Rodolfo Gil Fernandes, Mark A Marieb, Joseph G Akar, Arya Mani
Long QT syndrome (LQT) is a pro-arrhythmogenic condition with life threatening complications. Fifteen genes have been associated with congenital LQT however, the genetic causes remain unknown in more than 20% of cases. Eighteen patients with history of palpitations, presyncope, syncope and prolonged QT were referred to the Yale Cardiovascular Genetics Program. All subjects underwent whole exome sequencing (WES) followed by confirmatory Sanger sequencing. Mutation burden analysis was carried out using WES data from sixteen subjects with no identifiable cause of LQT...
April 13, 2017: Clinical Genetics
https://www.readbyqxmd.com/read/28376710/electrocardiographic-changes-mimicking-acute-coronary-syndrome-in-a-large-intracranial-tumour-a-diagnostic-dilemma
#11
Nilukshana Yogendranathan, H M M T B Herath, S P Pahalagamage, Aruna Kulatunga
BACKGROUND: ST elevation Myocardial infarction is a medical emergency. A variety of noncardiac conditions had been known to mimic the ECG changes that are seen in acute coronary syndrome. Although the common ECG changes that are documented with raised intracranial pressure are T inversions, prolongation of QT interval and sinus bradycardia, ST elevation or depression, arrhythmias and prominent U waves have also been recognized. However, ST elevations in association with primary intracranial tumours are rarely reported...
April 4, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28356904/clinical-utility-of-patiromer-sodium-zirconium-cyclosilicate-and-sodium-polystyrene-sulfonate-for-the-treatment-of-hyperkalemia-an-evidence-based-review
#12
REVIEW
Mario V Beccari, Calvin J Meaney
INTRODUCTION: Hyperkalemia is a serious medical condition that often manifests in patients with chronic kidney disease and heart failure. Renin-angiotensin-aldosterone system inhibitors are known to improve outcomes in these disease states but can also cause drug-induced hyperkalemia. New therapeutic options exist for managing hyperkalemia in these patients which warrant evidence-based evaluation. AIM: The objective of this article was to review the efficacy and safety evidence for patiromer, sodium zirconium cyclosilicate (ZS9), and sodium polystyrene sulfonate (SPS) for the treatment of hyperkalemia...
2017: Core Evidence
https://www.readbyqxmd.com/read/28323171/acquired-long-qt-syndrome-in-hospitalized-patients
#13
Haixu Yu, Li Zhang, Jinqiu Liu, Ying Liu, Peter R Kowey, Yanli Zhang, Yue Chen, Yushan Wei, Lianjun Gao, Huihua Li, Jie Du, Yunlong Xia
BACKGROUND: Acquired long QT syndrome (ALQTS) has long been overlooked in clinical practice. Recent studies reported that severe ALQTS (QTc ≥500 ms) in hospitalized patients is associated with increased all-cause mortality. OBJECTIVE: We aimed to determine the role of ALQTS in the clinical outcomes of hospitalized patients. METHODS: Electronic medical records were reviewed to identify severe ALQTS in hospitalized patients in a single study center from 9-1-2013 to 2-28-2014...
March 16, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28292795/primary-care-management-of-opioid-use-disorders-abstinence-methadone-or-buprenorphine-naloxone
#14
REVIEW
Anita Srivastava, Meldon Kahan, Maya Nader
OBJECTIVE: To advise physicians on which treatment options to recommend for specific patient populations: abstinence-based treatment, buprenorphine-naloxone maintenance, or methadone maintenance. SOURCES OF INFORMATION: PubMed was searched and literature was reviewed on the effectiveness, safety, and side effect profiles of abstinence-based treatment, buprenorphine-naloxone treatment, and methadone treatment. Both observational and interventional studies were included...
March 2017: Canadian Family Physician Médecin de Famille Canadien
https://www.readbyqxmd.com/read/28238088/prevalence-of-resting-ecg-abnormalities-in-systemic-lupus-erythematosus-a-single-center-experience
#15
Gihyun Myung, Lindsy J Forbess, Mariko L Ishimori, Sumeet Chugh, Daniel Wallace, Michael H Weisman
Cardiovascular complications are a major cause of morbidity and even mortality among systemic lupus erythematosus (SLE) patients. Whether cardiac arrhythmias contribute to this burden among SLE patients, however, is not currently known. The goal of this study was to determine the prevalence of cardiac conduction abnormalities among SLE patients from a single center. We retrospectively reviewed the medical records of SLE patients who had 12-lead electrocardiograms (ECGs) available from various settings at a single academic center over the period of 10 years...
February 25, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28229241/acquired-prolongation-of-qt-interval-as-a-risk-factor-for-torsade-de-pointes-ventricular-tachycardia-a-narrative-review-for-the-anesthesiologist-and-intensivist
#16
REVIEW
Arsen Uvelin, Jasmina Pejaković, Vesna Mijatović
More than 70% of intensive care unit (ICU) patients experience heart rhythm disturbances, and these patients have correspondingly higher mortality rates. Consequently, one of the standards of care in ICUs is continuous electrocardiography monitoring. One of the potentially preventable dysrhythmic events is the occurrence of torsade de pointes ventricular tachycardia in the setting of acquired prolonged QT interval. This type of ventricular tachycardia can be malignant because it often progresses to ventricular fibrillation...
February 22, 2017: Journal of Anesthesia
https://www.readbyqxmd.com/read/28213480/common-genetic-variant-risk-score-is-associated-with-drug-induced-qt-prolongation-and-torsade-de-pointes-risk-a-pilot-study
#17
David G Strauss, Jose Vicente, Lars Johannesen, Ksenia Blinova, Jay W Mason, Peter Weeke, Elijah R Behr, Dan M Roden, Ray Woosley, Gulum Kosova, Michael A Rosenberg, Christopher Newton-Cheh
BACKGROUND: Drug-induced QT interval prolongation, a risk factor for life-threatening ventricular arrhythmias, is a potential side effect of many marketed and withdrawn medications. The contribution of common genetic variants previously associated with baseline QT interval to drug-induced QT prolongation and arrhythmias is not known. METHODS: We tested the hypothesis that a weighted combination of common genetic variants contributing to QT interval at baseline, identified through genome-wide association studies, can predict individual response to multiple QT-prolonging drugs...
April 4, 2017: Circulation
https://www.readbyqxmd.com/read/28211989/timothy-syndrome-1-genotype-without-syndactyly-and-major-extracardiac-manifestations
#18
Róbert Sepp, Lidia Hategan, Attila Bácsi, Judit Cseklye, László Környei, János Borbás, Márta Széll, Tamás Forster, István Nagy, Zoltán Hegedűs
Timothy syndrome 1 (TS1) is a rare genetic disorder characterized by multisystem abnormalities including QT prolongation, congenital heart defects, facial dysmorphism, episodic hypoglycemia, and neurological symptoms. A morphological hallmark of TS1 is syndactyly, present in all cases. TS1 is caused by the canonical p.Gly406Arg mutation in the alternatively spliced exon 8A in the CACNA1C gene, encoding for the main cardiac L-type calcium channel. A variant case of TS1 is reported. The proband had intermittent fetal bradycardia with heart rate of 72 bpm...
March 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28193647/piperaquine-population-pharmacokinetics-and-cardiac-safety-in-cambodia
#19
Pattaraporn Vanachayangkul, Chanthap Lon, Michele Spring, Sommethy Sok, Winita Ta-Aksorn, Chanikarn Kodchakorn, Sut-Thang Pann, Soklyda Chann, Mali Ittiverakul, Sabaithip Sriwichai, Nillawan Buathong, Worachet Kuntawunginn, Mary So, Theng Youdaline, Erin Milner, Mariusz Wojnarski, Charlotte Lanteri, Jessica Manning, Satharath Prom, Mark Haigney, Louis Cantilena, David Saunders
Despite the rising rates of resistance to dihydroartemisinin-piperaquine (DP), DP remains a first-line therapy for uncomplicated malaria in many parts of Cambodia. While DP is generally well tolerated as a 3-day DP (3DP) regimen, compressed 2-day DP (2DP) regimens were associated with treatment-limiting cardiac repolarization effects in a recent clinical trial. To better estimate the risks of piperaquine on QT interval prolongation, we pooled data from three randomized clinical trials conducted between 2010 and 2014 in northern Cambodia...
May 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28193195/assessing-the-burden-of-treatment-emergent-adverse-events-associated-with-atypical-antipsychotic-medications
#20
Pierre-Michel Llorca, Christophe Lançon, Ann Hartry, T Michelle Brown, Dana B DiBenedetti, Siddhesh A Kamat, Clément François
BACKGROUND: Treatment of schizophrenia and major depressive disorder (MDD) with atypical antipsychotics (AAPs) show improved efficacy and reduced side effect burden compared with older antipsychotic medications. However, a risk of treatment-emergent adverse events (TEAEs) remains. TEAEs are hard to quantify and perspectives on the importance of TEAEs differ across patients and between patients and physicians. The current study is a qualitative assessment that investigates TEAEs of AAPs from both patient and physician perspectives to provide better understanding of the occurrence and burden of TEAEs associated with these medications...
February 13, 2017: BMC Psychiatry
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