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QT prolonging medication

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https://www.readbyqxmd.com/read/28323171/acquired-long-qt-syndrome-in-hospitalized-patients
#1
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
#2
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
#3
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
#4
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/a-common-genetic-variant-risk-score-is-associated-with-drug-induced-qt-prolongation-and-torsade-de-pointes-risk-a-pilot-study
#5
David G Strauss, Jose Vicente, Lars Johannesen, Ksenia Blinova, Jay W Mason, Peter Weeke, Elijah R Behr, Dan M Roden, Raymond 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...
February 17, 2017: Circulation
https://www.readbyqxmd.com/read/28211989/timothy-syndrome-1-genotype-without-syndactyly-and-major-extracardiac-manifestations
#6
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
#7
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 rising resistance, dihydroartemisinin-piperaquine (DP) remains a first line therapy for uncomplicated malaria in many parts of Cambodia. While generally well-tolerated as a 3-day regimen, compressed 2-day regimens were associated with treatment-limiting cardiac repolarization effects in a recent clinical trial. To better estimate the risks of piperaquine concentration on QT interval prolongation, we pooled data from 3 randomized clinical trials between 2010 and 2014 in northern Cambodia. A population pharmacokinetic model was developed to compare exposure-response relationships between 2-day (2DP) and 3-day (3DP) regimens while accounting for differences in regimen and sample collection times between studies...
February 13, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28193195/assessing-the-burden-of-treatment-emergent-adverse-events-associated-with-atypical-antipsychotic-medications
#8
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
https://www.readbyqxmd.com/read/28186837/methadone-and-corrected-qt-prolongation-in-pain-and-palliative-care-patients-a-case-control-study
#9
Katherine M Juba, Tina M Khadem, David J Hutchinson, Jack E Brown
BACKGROUND: Methadone (ME) is commonly used in pain and palliative care (PPC) patients with refractory pain or intolerable opioid adverse effects (AEs). A unique ME AE is its corrected QT (QTc) interval prolongation risk, but most evidence exists in methadone maintenance therapy patients. OBJECTIVE: Our goal was to identify QTc interval prolongation risk factors in PPC patients receiving ME and other medications known to prolong the QTc interval and develop a risk stratification tool...
February 10, 2017: Journal of Palliative Medicine
https://www.readbyqxmd.com/read/28159815/validation-of-the-prognostic-utility-of-the-electrocardiogram-for-acute-drug-overdose
#10
Alex F Manini, Ajith P Nair, Rajesh Vedanthan, David Vlahov, Robert S Hoffman
BACKGROUND: While it is certain that some emergency department patients with acute drug overdose suffer adverse cardiovascular events (ACVE), predicting ACVE is difficult. The prognostic utility of the ECG for heterogeneous drug overdose patients remains to be proven. This study was undertaken to validate previously derived features of the initial ECG associated with ACVE in this population. METHODS AND RESULTS: We performed a prospective validation cohort study to evaluate adult emergency department patients with acute drug overdose at 2 urban university hospitals over 5 years in whom an emergency department admission ECG was performed...
February 3, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28126150/drug-induced-qtc-prolongation
#11
Fady S Riad, Andrew M Davis, Michael P Moranville, John F Beshai
QTc prolongation has a high prevalence of and is associated with increased all-cause mortality. Nonetheless, QTc prolonging medications are often used during patient hospitalizations despite baseline prolongation and QTc changes. Data regarding the real-world relative risk of QTc prolongation in the hospital setting are lacking. In this study, we sought to quantify the degree and relative risk of QTc prolongation in patients receiving Arizona Center for Education and Research on Therapeutics (AzCERT) "known risk" medications...
January 15, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28116499/lack-of-relationship-between-plasma-levels-of-escitalopram-and-qtc-interval-length
#12
Mar Carceller-Sindreu, Javier de Diego-Adeliño, Maria J Portella, Xavier Garcia-Moll, Maria Figueras, Aina Fernandez-Vidal, Josep M Queraltó, Dolors Puigdemont, Enric Álvarez
Despite safety concerns raised by the European Medicines Agency (EMA), evidence supporting QT-lengthening effects of escitalopram is far to be conclusive. We aimed to evaluate the relationship between escitalopram plasma levels (Escit-PL) and corrected QT-interval length (QTc-length) in 91 outpatients recruited from a hospital setting. Fifteen patients had an abnormally prolonged QTc-interval, and 3 had QTc-intervals ≥500 ms. No correlation between Escit-PL and QTc-length was found (r = 0.08; p = 0.45)...
January 23, 2017: European Archives of Psychiatry and Clinical Neuroscience
https://www.readbyqxmd.com/read/28100427/the-possible-role-of-propofol-in-drug-induced-torsades-de-pointes-a-real-world-single-center-analysis
#13
Victor A Abrich, Harish Ramakrishna, Arjun Mehta, Farouk Mookadam, Komandoor Srivathsan
BACKGROUND: Torsades de pointes (TdP) is a polymorphic ventricular tachycardia associated with QT prolongation. Propofol is a sedative-anesthetic with proarrhythmic effects on cardiac myocytes. We performed a retrospective study to determine the incidence of TdP following propofol exposure at Mayo Clinic (Rochester, MN) from 08/11/1998-11/20/2015. METHODS: We queried our database using key search terms to identify patients exposed to propofol who developed TdP perioperatively or during non-surgical sedation...
April 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28087566/application-of-whole-exome-sequencing-in-the-clinical-diagnosis-and-management-of-inherited-cardiovascular-diseases-in-adults
#14
Sara B Seidelmann, Emily Smith, Lakshman Subrahmanyan, Daniel Dykas, Maen D Abou Ziki, Bani Azari, Fady Hannah-Shmouni, Yuexin Jiang, Joseph G Akar, Mark Marieb, Daniel Jacoby, Allen E Bale, Richard P Lifton, Arya Mani
BACKGROUND: With the advent of high throughput sequencing, the identification of genetic causes of cardiovascular disease (CVD) has become an integral part of medical diagnosis and management and at the forefront of personalized medicine in this field. The use of whole exome sequencing for clinical diagnosis, risk stratification, and management of inherited CVD has not been previously evaluated. METHODS AND RESULTS: We analyzed the results of whole exome sequencing in first 200 adult patients with inherited CVD, who underwent genetic testing at the Yale Program for Cardiovascular Genetics...
February 2017: Circulation. Cardiovascular Genetics
https://www.readbyqxmd.com/read/28073687/adverse-event-detection-using-the-fda-post-marketing-drug-safety-surveillance-system-cardiotoxicity-associated-with-loperamide-abuse-and-misuse
#15
Kimberley A Swank, Eileen Wu, Cindy Kortepeter, Jana McAninch, Robert L Levin
OBJECTIVE: The purpose of this investigation was to identify and characterize post-marketing reports of cardiotoxicity, including torsades de pointes (TdP), associated with loperamide use. METHODS: We searched the U.S. Food and Drug Administration Adverse Event Reporting System (FAERS) database for post-marketing reports of serious cardiac adverse events associated with loperamide use from December 28, 1976 (U.S. drug approval date), through December 14, 2015. We also conducted a Pubmed and Google Scholar search to identify additional published reports of cardiotoxicity associated with loperamide in the medical literature through February 11, 2016...
January 7, 2017: Journal of the American Pharmacists Association: JAPhA
https://www.readbyqxmd.com/read/28071178/psychotropic-drugs-and-ventricular-repolarisation-the-effects-on-qt-interval-t-peak-to-t-end-interval-and-qt-dispersion
#16
Tiziano Acciavatti, Giovanni Martinotti, Mariangela Corbo, Eduardo Cinosi, Matteo Lupi, Fabrizio Ricci, Rosa Di Scala, Emilia D'Ugo, Viola De Francesco, Raffaele De Caterina, Massimo di Giannantonio
OBJECTIVE: We aimed to investigate in a clinical setting, the effects of different classes of psychotropic drugs on cardiac electrophysiological measures linked with an increased risk of sudden cardiac death. METHODS: We conducted a cross-sectional study in a population of 1059 psychiatric inpatients studying the effects of various psychotropic drugs on the T-peak to T-end (TpTe) interval, QT dispersion and QT interval. RESULTS: Methadone use showed a strong association with TpTe prolongation (odds ratio (OR)=12...
January 1, 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28039329/a-genome-wide-interaction-analysis-of-tricyclic-tetracyclic-antidepressants-and-rr-and-qt-intervals-a-pharmacogenomics-study-from-the-cohorts-for-heart-and-aging-research-in-genomic-epidemiology-charge-consortium
#17
Raymond Noordam, Colleen M Sitlani, Christy L Avery, James D Stewart, Stephanie M Gogarten, Kerri L Wiggins, Stella Trompet, Helen R Warren, Fangui Sun, Daniel S Evans, Xiaohui Li, Jin Li, Albert V Smith, Joshua C Bis, Jennifer A Brody, Evan L Busch, Mark J Caulfield, Yii-Der I Chen, Steven R Cummings, L Adrienne Cupples, Qing Duan, Oscar H Franco, Rául Méndez-Giráldez, Tamara B Harris, Susan R Heckbert, Diana van Heemst, Albert Hofman, James S Floyd, Jan A Kors, Lenore J Launer, Yun Li, Ruifang Li-Gao, Leslie A Lange, Henry J Lin, Renée de Mutsert, Melanie D Napier, Christopher Newton-Cheh, Neil Poulter, Alexander P Reiner, Kenneth M Rice, Jeffrey Roach, Carlos J Rodriguez, Frits R Rosendaal, Naveed Sattar, Peter Sever, Amanda A Seyerle, P Eline Slagboom, Elsayed Z Soliman, Nona Sotoodehnia, David J Stott, Til Stürmer, Kent D Taylor, Timothy A Thornton, André G Uitterlinden, Kirk C Wilhelmsen, James G Wilson, Vilmundur Gudnason, J Wouter Jukema, Cathy C Laurie, Yongmei Liu, Dennis O Mook-Kanamori, Patricia B Munroe, Jerome I Rotter, Ramachandran S Vasan, Bruce M Psaty, Bruno H Stricker, Eric A Whitsel
BACKGROUND: Increased heart rate and a prolonged QT interval are important risk factors for cardiovascular morbidity and mortality, and can be influenced by the use of various medications, including tricyclic/tetracyclic antidepressants (TCAs). We aim to identify genetic loci that modify the association between TCA use and RR and QT intervals. METHODS AND RESULTS: We conducted race/ethnic-specific genome-wide interaction analyses (with HapMap phase II imputed reference panel imputation) of TCAs and resting RR and QT intervals in cohorts of European (n=45 706; n=1417 TCA users), African (n=10 235; n=296 TCA users) and Hispanic/Latino (n=13 808; n=147 TCA users) ancestry, adjusted for clinical covariates...
December 30, 2016: Journal of Medical Genetics
https://www.readbyqxmd.com/read/28012712/unintended-consequences-of-adjusting-citalopram-prescriptions-following-the-2011-fda-warning
#18
Lauren B Gerlach, Helen C Kales, Donovan T Maust, Claire Chiang, Claire Stano, Hae Mi Choe, Kara Zivin
OBJECTIVES: In 2011, the U.S. Food and Drug Administration (FDA) issued a safety announcement cautioning providers against prescribing citalopram above 40 mg per day given concerns for QT prolongation. We assessed the impact of a health system quality improvement initiative to identify patients taking higher than the recommended dose of citalopram. DESIGN: Retrospective cohort study. SETTING: Nine primary care clinics within the University of Michigan from March 2012 to February 2013...
November 18, 2016: American Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28007118/rapidly-progressive-cataract-formation-associated-with-non-small-cell-lung-cancer-therapy
#19
Erica Liu, Kamden Kopani
We report 6 patients who developed rapidly progressive hypermature cataracts after starting treatment with rociletinib, a non-small-cell lung cancer therapy with known side effects of hyperglycemia, fatigue, and prolonged QT. Early cataract detection and surgery may prevent complications during future cataract removal. Although rociletinib development has been suspended, there are patients who have been treated and will continue to be treated with this medication based on their physician's judgment. These physicians should know about the potential for rapid vision loss due to cataracts as a manageable side effect...
December 2016: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/27996317/cardiac-arrest-with-clozapine-and-olanzapine-revealing-long-qt-syndrome
#20
Edward Woloszyn, Nishant Whig, Eileen Trigoboff, Jeffery J Grace
The authors describe a rare case of "concealed" congenital Long QT Syndrome (LQTS) Type 3 in a patient with treatment resistant schizophrenia and no known personal or family history of cardiac disease. The patient in this Case Report had a hidden genetic condition revealed only following the essential administration of antipsychotics. As a result, this patient experienced an aborted cardiac arrest and a total of five episodes of ventricular tachycardia (VT) requiring cardioversion. Successful control of the VT occurred with an Automatic Internal Defibrillator (AID), judicious use of antipsychotic medications, and anti-arrhythmic medications...
December 20, 2016: Clinical Schizophrenia & related Psychoses
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