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Ivabradine

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https://www.readbyqxmd.com/read/28764615/cerebral-tuberculosis-in-a-patient-with-systemic-lupus-erythematosus-following-cyclophosphamide-treatment-a-case-report
#1
S Cooray, H Zhang, R Breen, G Carr-White, R Howard, M Cuadrado, D D'Cruz, G Sanna
Central nervous system (CNS) tuberculosis (TB) is a rare but catastrophic event in patients with systemic lupus erythematosus (SLE). Here we report a case of cerebral TB in a patient with lupus myocarditis and nephritis, following cyclophosphamide immunosuppression. To our knowledge this is the first reported case of cerebral TB in SLE in a non-endemic country. A 31-year-old female with SLE and a history of regular travel to Kenya presented to our centre with clinical features of acute heart failure. She was diagnosed with severe lupus myocarditis, and a renal biopsy also confirmed lupus nephritis...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28762939/-a-new-insight-on-anti-ischemic-action-of-ivabradine-in-patients-with-stable-angina
#2
Zh D Kobalava, A A Shavarov, G K Kiyakbaev
Increase in heart rate triggers most ischemic episodes due to disbalance between myocardial oxygen delivery and consumption. Furthermore, increased heart rate is a modifiable risk factor in patients with chronic heart failure. Ivabradine reduces heart rate by selectively inhibiting the If current of sinoatrial node cells. Recent studies have shown that ivabradine may reduce myocardial ischaemia and its consequences not only through heart rate reduction, but also because of additional pleiotropic effects. This review summarizes last findings that demonstrate variety of ivabradine actions on coronary blood flow and left ventricular function in patients with ischemic heart disease...
March 2017: Kardiologiia
https://www.readbyqxmd.com/read/28726655/influence-of-beta-blockers-and-ivabradine-on-long-term-prognosis-of-patients-with-stable-angina
#3
T Ilashchuk, O Glubochenko, B Senyuk, N Bachuk-Ponich, I Lukashevich
The purpose of the study was to evaluate the influence of beta-blockers and ivabradine on long-term prognosis of patients with stable angina. 90 patients with stable angina that have been involved in present study along with nitrates, antiplatelet agents and statins received bisoprolol (Group I), carvedilol (Group II) and ivabradine (Group III). We analyzed the following indicators: patient adherence to treatment, cases of myocardial infarction and circulatory decompensation, which resulted in necessity of patient's hospitalization during the year of observation, calculating the probability of achieving a key prognostic endpoint by patient using the concept of the odds ratio and determination of important components in the progression of the disease...
June 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28726428/-a-present-view-on-ivabradine-in-the-therapy-of-cardiovascular-diseases
#4
Jiří Slíva
Cardiovascular illnesses belong to diseases with the highest prevalence. They are also the most predominant reason of death in the vast majority of European countries. Hence, the offer of effective treatment of these dis-eases is absolutely crucial. This text focuses on the current therapeutical use of ivabradine in its approved indications - chronic stable angina pectoris and chronic heart failure - in the context of so far published relevant clinical trials.Key words: angina pectoris - bradines - heart failure - If current - ischemic heart disease - ivabradine...
2017: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/28667054/analysis-of-decreases-in-systemic-arterial-pressure-and-heart-rate-in-response-to-the-hydrogen-sulfide-donor-sodium-sulfide
#5
Kevin W Swan, Bryant Minkyu Song, Allen L Chen, Travis J Chen, Ryan A Chan, Bradley T Guidry, Prasad V G Katakam, Edmund K Kerut, Thomas D Giles, Philip Kadowitz
The actions of hydrogen sulfide (H2S) on the heart and vasculature have been extensively reported. However, the mechanisms underlying the effects of H2S are unclear in the anesthetized rat. The objective of the current study is to investigate the effect of H2S on the electrocardiogram and examine the relationship between H2S-induced changes in heart rate (HR), mean arterial pressure (MAP), and respiratory function. Intravenous (iv) administration of the H2S donor sodium sulfide (Na2S) in the anesthetized Sprague-Dawley (SD) rat decreased MAP and HR and produced changes in respiratory function...
June 30, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28656798/limited-role-and-benefit-of-ivabradine-in-the-treatment-of-angina-and-heart-failure-with-reduced-ejection-fraction
#6
Pierre Vladimir Ennezat, Shona Cosgrove, Sylvestre Marechaux, Hélène Bouvaist, Thierry H Le Jemtel, Denis Vital Durand
Ivabradine is an original drug that has been approved in two indications (systolic heart failure and angina). The aim of this short review is to draw the attention of clinician prescribers to the evidence base of ivabradine. Three large randomized trials testing ivabradine versus placebo have been performed. The BEAUTIFUL and SIGNIFY trials were in fact negative in the treatment of angina while the SHIFT trial found a marginal benefit of ivabradine over placebo in the treatment of heart failure. These important results are put into perspective in order to improve the assessment of risk-cost/benefit balances when ivabradine is considered...
June 28, 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/28644179/improving-heart-failure-patient-outcomes-utilizing-guideline-directed-therapy
#7
Beth Towery Davidson, Terri Lynn Allison
Heart failure (HF) prevalence continues to rise and remains a significant burden to patients, caregivers, providers, and the healthcare system. Guideline-directed medical therapy with standard neurohormonal blockade has been the cornerstone of medical management for many years. Despite aggressive utilization of angiotensin-converting enzyme inhibitors, angiotensin receptor blockers, beta-blockers, and aldosterone antagonists, HF hospitalizations and readmissions are common and residual mortality remains high...
July 21, 2017: Nurse Practitioner
https://www.readbyqxmd.com/read/28640933/could-ivabradine-be-a-new-treatment-for-the-short-qt-syndrome
#8
EDITORIAL
Jules C Hancox
No abstract text is available yet for this article.
September 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28640847/heart-rate-lowering-treatment-leads-to-a-reduction-in-vulnerable-plaque-features-in-atherosclerotic-rabbits
#9
Raf H M van Hoof, Evelien Hermeling, Judith C Sluimer, Julie Salzmann, Arnold P G Hoeks, Jérôme Roussel, Mat J A P Daemen, Harry Struijker-Boudier, Joachim E Wildberger, Sylvia Heeneman, M Eline Kooi
OBJECTIVE: To investigate the effect of a heart rate (HR) lowering agent (Ivabradine) on features of atherosclerotic plaque vulnerability with magnetic resonance imaging (MRI), ultrasound imaging, and histology. APPROACH AND RESULTS: Atherosclerosis was induced in the abdominal aorta of 19 rabbits. Nine rabbits were treated with Ivabradine (17 mg/kg/day) during the entire study period. At week 14, imaging was performed. Plaque size was quantified on contrast-enhanced T1-weighted MR images...
2017: PloS One
https://www.readbyqxmd.com/read/28627809/ivabradine-reduces-digitalis-induced-ventricular-arrhythmias
#10
Gerrit Frommeyer, Jan Weller, Christian Ellermann, Nils Bögeholz, Patrick Leitz, Dirk G Dechering, Simon Kochhäuser, Kristina Wasmer, Lars Eckardt
The I(f) channel inhibitor ivabradine is recommended for treatment of heart failure but also affects potassium currents and thereby prolongs ventricular repolarization. The aim of this study was to examine the electrophysiological effects of ivabradine on digitalis-induced ventricular arrhythmias. Thirteen rabbit hearts were isolated and Langendorff-perfused. After obtaining baseline data, the digitalis glycoside ouabain was infused (0.2 μM). Monophasic action potentials and ECG showed a significant abbreviation of QT interval (-34 ms, p < 0...
June 19, 2017: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28627045/heart-rate-and-its-reduction-in-chronic-heart-failure-and-beyond
#11
REVIEW
Aleksandra Nikolovska Vukadinović, Davor Vukadinović, Jeffrey Borer, Martin Cowie, Michel Komajda, Mitja Lainscak, Karl Swedberg, Michael Böhm
Heart rate (HR) is associated with cardiovascular outcomes in all the stages of the cardiovascular continuum as well as in patients with pulmonary, cerebrovascular, and renal disease, sepsis, cancer, and erectile dysfunction. In patients with cardiovascular disease, but also in the general population, increased HR represents an important indicator of mortality with each acceleration of HR over 70 b.p.m. increasing the risk. In patients in sinus rhythm with chronic heart failure with reduced ejection fraction (HFrEF), a HR >70 b...
June 19, 2017: European Journal of Heart Failure
https://www.readbyqxmd.com/read/28601914/left-ventricular-ejection-fraction-as-therapeutic-target-is-it-the-ideal-marker
#12
REVIEW
V Katsi, G Georgiopoulos, A Laina, E Koutli, J Parissis, C Tsioufis, P Nihoyannopoulos, D Tousoulis
Heart failure (HF) consists the fastest growing clinical cardiac disease. HF patients are categorized on the basis of underlying left ventricular ejection fraction (LVEF) into HF with preserved EF (HFpEF), reduced LVEF (HFrEF), and mid-range LVEF (HFmrEF). While LVEF is the most commonly used surrogate marker of left ventricular (LV) systolic function, the implementation of two-dimensional echocardiography in estimating this parameter imposes certain caveats on current HF classification. Most importantly, LVEF could fluctuate in repeated measurements or even recover after treatment, thus blunting the borders between proposed categories of HF and enabling upward classification of patients...
June 10, 2017: Heart Failure Reviews
https://www.readbyqxmd.com/read/28556923/antiarrhythmic-properties-of-ivabradine-in-an-experimental-model-of-short-qt-syndrome
#13
Gerrit Frommeyer, Jan Weller, Christian Ellermann, Sven Kaese, Simon Kochhäuser, Philipp S Lange, Dirk G Dechering, Lars Eckardt
The If channel inhibitor ivabradine is recommended for treatment of chronic heart failure. However, ivabradine also inhibits human ether-a-go-go (hERG) mediated potassium currents. The aim of the present study was to assess the electrophysiologic effects of ivabradine in an experimental model of short-QT-syndrome. Twelve rabbit hearts were isolated and Langendorff-perfused. After obtaining baseline data, pinacidil, an IK-ATP channel opener, was infused (1 μmol/L). Eight endo- and epicardial monophasic action potentials and a 12-lead ECG showed a significant abbreviation of QT interval (-32 ms, P<...
September 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28541596/effects-of-ivabradine-and-beta-blocker-therapy-on-dobutamine-induced-ventricular-arrhythmias
#14
Kadir Uğur Mert, Gurbet Özge Mert, Bektas Morrad, Senan Tahmazov, Fezan Mutlu, Yüksel Cavusoglu
BACKGROUND: Indirect evidences suggest that the If blocker (ivabradine) may exert an antiarrhythmic effect in ventricular myocardium in heart failure patients by inhibiting spontaneous depolarizations but the clinical relevance of this mechanism is not known. Dobutamine (DOB) has been known to increase heart rate and the incidence of cardiac arrhythmias. In this study, we evaluated the effects of ivabradine on DOB-induced ventricular arrhythmias and compared it with that of β blocker therapy...
May 25, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/28541595/how-does-ivabradine-effect-erectile-dysfunction-in-patients-with-heart-failure
#15
Fatih Aydın, Serkan Bektur, Yasin Taşdelen, Yüksel Kıvrak, Ayşe Hüseyinoglu Aydın
BACKGROUND AND AIM: Erectile dysfunction (ED) is the inability or insufficiensy of penile erection that causes dissatisfaction during sexual intercourse. ED is seen in patients with heart failure (HF) ranging from %56-81 depending on the severity. Patients usually blame their cardiovascular medications for their ED. Ivabradine is used for antianginal effects and to improve exercise intolerance and decrease mortality in patients with HF. Most beta-blockers are known to cause ED but unlike beta-blockers the effect of ivabradine over ED has never been evaluated...
May 25, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/28522303/ivabradine-as-an-alternative-to-av-node-ablation-in-a%C3%A2-patient-with-permanent-atrial-fibrillation
#16
Adolfo Fontenla, Lola Villagraz, Javier de Juan, Álvaro Lozano, Sebastián Giacoman, María López-Gil
No abstract text is available yet for this article.
May 15, 2017: Revista Española de Cardiología
https://www.readbyqxmd.com/read/28520449/-novelties-in-the-treatment-of-heart-failure
#17
Filip Souček, Jan Novak
Heart failure (HF) is a complex clinical syndrome which is manifested by characteristic symptoms and objective signs of cardiac insufficiency. The incidence of HF, particularly its chronic form, is estimated 0.4-2 % in the central and western Europe, with an increase in higher age groups, affecting 10-20 % of the population aged over 80. With respect to its growing incidence and prevalence, novel modalities of pharmacological and non-pharmacological treatment are being developed in order to improve quality of life and survival of the affected patients...
2017: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/28507949/voltammetric-determination-of-ivabradine-hydrochloride-using-multiwalled-carbon-nanotubes-modified-electrode-in-presence-of-sodium-dodecyl-sulfate
#18
Ali Kamal Attia, Nisreen Farouk Abo-Talib, Marwa Hosny Tammam
Purpose: A new sensitive sensor was fabricated for the determination of ivabradine hydrochloride (IH) based on modification with multiwalled carbon nanotubes using sodium dodecyl sulfate as micellar medium to increase the sensitivity. Methods: The electrochemical behavior of IH was studied in Britton-Robinson buffer (pH: 2.0-11.0) using cyclic and differential pulse voltammetry. Results: The voltammetric response was linear over the range of 3.984 x 10(-6)-3.475 x 10(-5) mol L(-1). The limits of detection and quantification were found to be 5...
April 2017: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28492571/-teamwork-for-cardiac-imaging-coronary-computed-tomography-angiography-and-low-dose-radiation-exposure-a-cardiology-center-experience
#19
Massimo Magnacca, Rosa Poddighe, Jacopo Del Meglio, Alessio Lilli, Marco Tullio Baratto, Maria Laura Canale, Carlo Tessa, Luca Salvatori, Alessandra Niespolo, Claudio Vignali, Giancarlo Casolo
BACKGROUND: Multidetector coronary computed tomography angiography (CCTA) is increasingly used for noninvasive imaging of the coronary arteries. Radiation exposure, however, is a potential limitation to a more extensive use of this imaging modality. We aimed to demonstrate that a professional teamwork approach, including a cardiologist and a radiologist in performing CCTA, may allow to obtain best quality exams with very low radiation doses. METHODS: A total of 998 consecutive patients underwent CCTA in accordance with the most recent guidelines...
April 2017: Giornale Italiano di Cardiologia
https://www.readbyqxmd.com/read/28492564/-heart-rate-as-a-therapeutic-target-after-acute-coronary-syndrome-and-in-chronic-coronary-heart-disease
#20
Marco Ambrosetti, Giuseppe Scardina, Giuseppe Favretto, Pier Luigi Temporelli, Pompilio Massimo Faggiano, Cesare Greco, Roberto Franco Pedretti
For patients with stable coronary artery disease (SCAD), either after hospitalization for acute cardiac events or in the chronic phase, comprehensive treatment programs should be devoted to: (i) reducing mortality and major adverse cardiovascular events, (ii) reducing the ischemic burden and related symptoms, and (iii) increasing exercise capacity and quality of life.Heart rate (HR) has demonstrated to have prognostic value and patients beyond the limit of 70 bpm display increased risk of all the above adverse outcomes, even after adjustment for parameters such as the extension of myocardial infarction and the presence of heart failure...
March 2017: Giornale Italiano di Cardiologia
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