keyword
MENU ▼
Read by QxMD icon Read
search

qt prolongation

keyword
https://www.readbyqxmd.com/read/29145955/cardiovascular-complications-of-cancer%C3%A2-therapy-best-practices-in-diagnosis-prevention-and-management-part-2
#1
REVIEW
Hui-Ming Chang, Tochukwu M Okwuosa, Tiziano Scarabelli, Rohit Moudgil, Edward T H Yeh
In this second part of a 2-part review, we will review cancer or cancer therapy-associated systemic and pulmonary hypertension, QT prolongation, arrhythmias, pericardial disease, and radiation-induced cardiotoxicity. This review is based on a MEDLINE search of published data, published clinical guidelines, and best practices in major cancer centers. Newly developed targeted therapy can exert off-target effects causing hypertension, thromboembolism, QT prolongation, and atrial fibrillation. Radiation therapy often accelerates atherosclerosis...
November 14, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29145929/ciprofloxacin-does-not-prolong-the-qtc-interval-a-clinical-study-in-icu-patients-and-review-of-the-literature
#2
Charlotte Heemskerk, Evelien Woldman, Marieke Pereboom, Ruud Van der Hoeven, Aukje Mantel-Teeuwisse, Claudia Van Gemeren, Matthijs Lambertus Becker
PURPOSE: Ciprofloxacin may prolong the QT interval and increase the risk of Torsade de Pointes (TdP). Intravenous administration of ciprofloxacin in patients with additional risks may elevate the risk of QTc interval prolongation. We prospectively assessed whether intravenous ciprofloxacin prolongs the QT interval in patients with additional co-morbidities and risk factors. We also reviewed the literature on the QT prolonging effect or TdP inducing effect of ciprofloxacin. METHODS: ICU Patients who were treated with intravenous ciprofloxacin as part of their therapy were recruited...
2017: Journal of Pharmacy & Pharmaceutical Sciences: a Publication of the Canadian Society for Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29145422/missense-mutation-at-cldn8-associated-with-a-high-plasma-interferon-gamma-inducible-protein-10-level-in-methadone-maintained-patients-with-urine-test-positive-for-morphine
#3
Tung-Hsia Liu, Ren-Hua Chung, Sheng-Chang Wang, Chiu-Ping Fang, Hsiao-Hui Tsou, Chia-Lung Shih, Hsiang-Wei Kuo, Yun Wang, Yu-Li Liu
We previously reported a high plasma chemokine interferon gamma-inducible protein 10 (IP-10) level and prolonged electrocardiography QT-interval in methadone maintenance treatment (MMT) patients with HIV or HCV infection. The purpose of this study was to evaluate the genetic association of high plasma IP-10 level in the MMT patients. The gene-based and pathway-based association analyses were conducted using a genome-wide association study dataset in 344 MMT patients for identifying genes and pathways associated with plasma IP-10 level...
2017: PloS One
https://www.readbyqxmd.com/read/29142174/evaluation-system-for-arrhythmogenic-potential-of-drugs-using-human-induced-pluripotent-stem-cell-derived-cardiomyocytes-and-gene-expression-analysis
#4
Arisa Higa, Hirotaka Hoshi, Yuka Yanagisawa, Emi Ito, Gaku Morisawa, Jun-Ichi Imai, Shinya Watanabe, Motoki Takagi
In recent years, human-induced pluripotent stem cell-derived cardiomyocytes (hiPS-CMs) have been widely used to develop evaluation systems for drug cardiotoxicity, including the arrhythmia caused by QT prolongation. To accurately assess the arrhythmogenic potential of drugs, associated with QT prolongation, we developed an evaluation system using hiPS-CMs and gene expression analysis. hiPS-CMs were treated with 8 arrhythmogenic and 17 non-arrhythmogenic drugs at several concentrations for 24 hr to comprehensively analyze gene expression...
2017: Journal of Toxicological Sciences
https://www.readbyqxmd.com/read/29139135/phase-1-study-of-quizartinib-in-combination-with-induction-and-consolidation-chemotherapy-in-patients-with-newly-diagnosed-acute-myeloid-leukemia
#5
Jessica K Altman, James M Foran, Keith W Pratz, Denise Trone, Jorge E Cortes, Martin S Tallman
Novel therapies have potential to improve outcomes in patients with acute myeloid leukemia (AML) harboring FLT3-ITD mutations that have high risk of relapse and poor survival following standard of care (SOC) cytarabine/anthracycline-based induction/consolidation chemotherapy. Quizartinib is a selective and highly potent FLT3 inhibitor that has shown strong single-agent activity in relapsed or refractory (R/R) AML. This phase 1, open-label, sequential group dose-escalation trial (NCT 01390337) is the first evaluating safety and tolerability of quizartinib in combination with SOC chemotherapy in newly diagnosed AML (ndAML)...
November 15, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/29139041/drug-safety-analysis-in-a-real-life-cohort-of-parkinson-s-disease-patients-with-polypharmacy
#6
Saskia Müller-Rebstein, Claudia Trenkwalder, Jens Ebentheuer, Wolfgang H Oertel, Carsten Culmsee, Günter U Höglinger
BACKGROUND: Polypharmacy is common in geriatric Parkinson's disease (PD) patients in advanced disease stages with multiple comorbidities, bearing multiple risks for drug safety in theory. OBJECTIVE: The aim of this study was to empirically identify the most frequent and relevant contraindications and drug interactions actually occurring and compromising drug safety in PD in real life. METHODS: We conducted a prospective observational study in a multimorbid cohort of PD patients with polypharmacy admitted to a specialized hospital...
November 14, 2017: CNS Drugs
https://www.readbyqxmd.com/read/29133340/effects-of-hawthorn-crataegus-pentagyna-leaf-extract-on-electrophysiologic-properties-of-cardiomyocytes-derived-from-human-cardiac-arrhythmia-specific-induced-pluripotent-stem-cells
#7
Sara Pahlavan, Marziyeh Shalchi Tousi, Mahdi Ayyari, Abolfazl Alirezalu, Hassan Ansari, Tomo Saric, Hossein Baharvand
Cardiac arrhythmias are major life-threatening conditions. The landmark discovery of induced pluripotent stem cells has provided a promising in vitro system for modeling hereditary cardiac arrhythmias as well as drug development and toxicity testing. Nowadays, nutraceuticals are frequently used as supplements for cardiovascular therapy. Here we studied the cardiac effects of hawthorn (Crataegus pentagyna) leaf extract using cardiomyocytes (CMs) differentiated from healthy human embryonic stem cells, long QT syndrome type 2 (LQTS2), and catecholaminergic polymorphic ventricular tachycardia type 1 (CPVT1) patient-specific induced pluripotent stem cells...
November 13, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29133066/-qtc-interval-in-the-neonatal-period-in-a-mexican-population-a-pilot-study
#8
Rocio Alejandra Peña-Juárez, Adrián Garcia-Canales, Luis Martin Garrido-García, Cesar Augusto Valerio-Carballo
INTRODUCTION: QT interval prolongation is associated with ventricular arrhythmias and sudden death syndrome. OBJECTIVE: To determine the value of QTc interval in healthy newborns in a general hospital in Jalisco, Mexico, and their outcome during their first months of life. METHODS: The study included healthy newborns from March to November 2016, in the Hospital General of Occidente in Jalisco, Mexico. A 12-lead electrocardiogram was performed at a speed of 25mm/s during the first 48h of life...
November 10, 2017: Archivos de Cardiología de México
https://www.readbyqxmd.com/read/29126124/predicting-drug-safety-and-communicating-risk-benefits-of-a-bayesian-approach
#9
Stanley E Lazic, Nicholas Edmunds, Christopher E Pollard
Drug toxicity is a major source of attrition in drug discovery and development. Pharmaceutical companies routinely use preclinical data to predict clinical outcomes and continue to invest in new assays to improve predictions. However, there are many open questions about how to make the best use of available data, combine diverse data, quantify risk, and communicate risk and uncertainty to enable good decisions. The costs of suboptimal decisions are clear: resources are wasted and patients may be put at risk...
November 6, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29123887/two-cases-of-life-threatening-arrhythmia-induced-by-risperidone-evaluation-of-risperidone-and-9-hydroxy-risperidone-concentrations
#10
Asami Ito, Tomoyuki Enokiya, Eiji Kawamoto, Yoshiaki Iwashita, Taichi Takeda, Kenji Ikemura, Masahiro Okuda, Hiroshi Imai
Cases: Case 1: A 20-year-old woman suffering a suspected overdose was transported to the hospital. She presented bradycardia with wide QRS waves and QT prolongation, followed by cardiac arrest. Extracorporeal cardiopulmonary resuscitation was implemented, improving circulation. Risperidone and 9OH-RIS levels were 9.6 ng/mL and 127.6 ng/mL, respectively. Case 2: A 54-year-old woman was hospitalized for femoral fracture and underwent surgery. Her electrocardiogram showed bradycardia and complete AV block...
July 2017: Acute Medicine & Surgery
https://www.readbyqxmd.com/read/29123885/cardiac-arrest-caused-by-sibutramine-obtained-over-the-internet-a-case-of-a-young-woman-without-pre-existing-cardiovascular-disease-successfully-resuscitated-using-extracorporeal-membrane-oxygenation
#11
Naofumi Bunya, Keigo Sawamoto, Shuji Uemura, Ryoko Kyan, Hiroyuki Inoue, Junichi Nishida, Hidemichi Kouzu, Nobuaki Kokubu, Tetsuji Miura, Eichi Narimatsu
Case: Sibutramine is a weight loss agent that was withdrawn from the market in the USA and European Union because it increases adverse events in patients with cardiovascular diseases. However, non-prescription weight loss pills containing sibutramine can be still easily purchased over the Internet. A 21-year-old woman without history of cardiovascular diseases developed cardiac arrest. She was a user of a weight loss pills, containing sibutramine and hypokalemia-inducing agents, imported from Thailand over the Internet...
July 2017: Acute Medicine & Surgery
https://www.readbyqxmd.com/read/29121758/tpeak-tend-dispersion-as-a-predictor-for-malignant-arrhythmia-events-in-patients-with-vasospastic-angina
#12
Wang Xianpei, Wu Sha, Gao Chuanyu, Yan Juanjuan, Chen Chong, Shi Yongen, Feng Yu, Lin Zhenhao
BACKGROUND: Tpeak-Tend interval (Tp-e interval) in electrocardiogram (ECG) has been reported to predict malignant arrhythmia events (MAE) in ST-segment elevation myocardial infarction and ion channelopathy. Tp-e interval and other ECG parameters as predictors for MAE was evaluated in patients with vasospastic angina (VA). METHODS AND RESULTS: Sixty-two patients with VA (Non-MAE group) and 20 patients with VA complicated by MAE (MAE group) were enrolled in our Division of Cardiology between January 2010 and December 2015...
December 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29121487/risk-of-cardiac-events-in-long-qt-syndrome-patients-when-taking-antiseizure-medications
#13
David S Auerbach, Yitschak Biton, Bronislava Polonsky, Scott McNitt, Robert A Gross, Robert T Dirksen, Arthur J Moss
Many antiseizure medications (ASMs) affect ion channel function. We investigated whether ASMs alter the risk of cardiac events in patients with corrected QT (QTc) prolongation. The study included people from the Rochester-based Long QT syndrome (LQTS) Registry with baseline QTc prolongation and history of ASM therapy (n = 296). Using multivariate Anderson-Gill models, we assessed the risk of recurrent cardiac events associated with ASM therapy. We stratified by LQTS genotype and predominant mechanism of ASM action (Na(+) channel blocker and gamma-aminobutyric acid modifier...
October 20, 2017: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/29118998/association-of-qt-interval-with-mortality-by-kidney-function-results-from-the-national-health-and-nutrition-examination-survey-nhanes
#14
Rehan Malik, Sehrish Waheed, Deepak Parashara, Jorge Perez, Salman Waheed
Objective: Prolonged QT interval predisposes to ventricular arrhythmias and sudden cardiac death. However, the association between QT interval and mortality by the level of pre-existing kidney function has not been investigated. Methods: We followed 6565 participants from the National Health and Nutrition Examination Survey III for a median of 13.3 years. Sample divided according to corrected QT (QTc) interval was as follows: normal (QTc <450 ms for men and <460 ms for women) or prolonged...
2017: Open Heart
https://www.readbyqxmd.com/read/29118886/polymorphic-ventricular-tachycardia-secondary-to-subarachnoid-haemorrhage-a-rare-occurrence-in-the-setting-of-normal-qtc
#15
Siddharth Paresh Shah, Priyanka Pitroda, Kinner Patel, Rahul Chandak, Timothy Ford
Subarachnoid hemorrhage (SAH) is a neurologic emergency associated with high mortality rate. Polymorphic ventricular tachycardia (VT) is a rare arrhythmia. It can occur in any setting of a long QT interval and bradycardia. This may result from a cardiomyopathy (both ischemic and non-ischemic), acute coronary ischemia, congenital long QT syndrome, electrolyte disturbances and cerebrovascular diseases. We report a rare case of polymorphic VT of unclear etiology with a normal corrected QT, likely secondary to SAH...
October 2017: Cardiology Research
https://www.readbyqxmd.com/read/29116540/long-term-safety-of-long-acting-octreotide-in-patients-with-diabetic-retinopathy-results-of-pooled-data-from-2-randomized-double-blind-placebo-controlled-phase-3-studies
#16
Rosario Pivonello, Giovanna Muscogiuri, Geoffrey Holder, Michaela Paul, Severine Sarp, Anastasia Lesogor, Pierre Jordaan, Johannes Eisinger, Annamaria Colao
PURPOSE: Octreotide (OCT) has been successfully used for treatment of acromegaly and neuroendocrine tumors for more than 30 years. However, long-term safety of OCT has not been documented in placebo-controlled setting. This present analysis pooled safety data from two similarly-designed, randomized, and placebo-controlled studies to evaluate long-term safety of long-acting OCT (20, 30 mg); targeted post-hoc analyzes focused on cardiac, hepatic, and renal safety. METHODS: Two studies (NCT00131144, NCT001308450) were conducted in patients with diabetic retinopathy (OCT20 = 191, OCT30 = 348, placebo = 347)...
November 7, 2017: Endocrine
https://www.readbyqxmd.com/read/29110351/posaconazole-liquid-vs-tablet-formulation-in-lung-transplant-recipients
#17
D Telzer, A Weber, F Ihle, S Matthes, F Ceelen, G Zimmermann, N Kneidinger, R Schramm, H Winter, M Zoller, M Vogeser, J Behr, C Neurohr
BACKGROUND: Posaconazole is an extended-spectrum triazole antifungal used in the treatment and prophylaxis of Aspergillus infections. It is available as oral suspension (POS-Liq) and delayed-release tablets (POS-Tab). OBJECTIVES: The aim of this longitudinal, retrospective study was to compare the clinical effectiveness, toxicity, and pharmacokinetics of POS-Liq vs. POS-Tab in lung transplant recipients (LTx-recipients), who were treated with both formulations subsequently...
November 6, 2017: Mycoses
https://www.readbyqxmd.com/read/29107482/prevalence-and-outcome-of-high-risk-qt-prolongation-recorded-in-the-emergency-department-from-an-institution-wide-qt-alert-system
#18
Heather N Anderson, J Martijn Bos, Kristina H Haugaa, Bruce W Morlan, Robert F Tarrell, Pedro J Caraballo, Michael J Ackerman
BACKGROUND: QT prolongation is an independent risk factor for sudden death, stroke, and all-cause mortality. However, additional studies have shown that in certain settings, QT prolongation may be transient and a result of external factors. OBJECTIVE: In this study, we evaluated the clinical characteristics and outcomes of patients seen in the emergency department (ED) with QT prolongation. METHODS: Between November 2010 and June 2011, 7522 patients had an electrocardiogram (ECG) obtained during their evaluation in the ED...
October 26, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29103053/domperidone-for-hypotension-in-parkinson-s-disease-a-systematic-review
#19
Stephen Bacchi, Ivana Chim, Philippe Kramer, Ronald B Postuma
BACKGROUND: Domperidone is a proposed treatment of orthostatic hypotension (OH) in Parkinson's disease (PD). However, domperidone use in PD is tempered by concerns regarding QT prolongation and ventricular tachyarrhythmia and sudden cardiac death (VT/SCD). OBJECTIVE: The aim is to identify peer-reviewed studies in which either (1) the effect of domperidone on blood pressure in patients with PD, or (2) the adverse effects associated with domperidone use in PD patients has been reported...
2017: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/29101013/the-congenital-long-qt-syndrome-type-3-an-update
#20
REVIEW
Andrés Ricardo Pérez-Riera, Raimundo Barbosa-Barros, Rodrigo Daminello Raimundo, Marianne Penachini da Costa de Rezende Barbosa, Isabel Cristina Esposito Sorpreso, Luiz Carlos de Abreu
Congenital long QT syndrome type 3 (LQT3) is the third in frequency compared to the 15 forms known currently of congenital long QT syndrome (LQTS). Cardiac events are less frequent in LQT3 when compared with LQT1 and LQT2, but more likely to be lethal; the likelihood of dying during a cardiac event is 20% in families with an LQT3 mutation and 4% with either an LQT1 or an LQT2 mutation. LQT3 is consequence of mutation of gene SCN5A which codes for the Nav1.5 Na(+) channel α-subunit and electrocardiographically characterized by a tendency to bradycardia related to age, prolonged QT/QTc interval (mean QTc value 478 ± 52 ms), accentuated QT dispersion consequence of prolonged ST segment, late onset of T wave and frequent prominent U wave because of longer repolarization of the M cell across left ventricular wall...
October 31, 2017: Indian Pacing and Electrophysiology Journal
keyword
keyword
91795
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"