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Atrial fibrillation with rapid ventricular rate

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https://www.readbyqxmd.com/read/29731345/metoprolol-vs-diltiazem-in-the-acute-management-of-atrial-fibrillation-in-patients-with-heart-failure-with-reduced-ejection-fraction
#1
RaeAnn Hirschy, Kimberly A Ackerbauer, Gary D Peksa, E Paul O'Donnell, Joshua M DeMott
OBJECTIVE: The objective of this study was to examine the effects of metoprolol versus diltiazem in the acute management of atrial fibrillation (AF) with rapid ventricular response (RVR) in patients with heart failure with reduced ejection fraction (HFrEF). METHODS: This retrospective cohort study of patients with HFrEF in AF with RVR receiving either intravenous push (IVP) doses of metoprolol or diltiazem was conducted between January 2012 and September 2016. The primary outcome was successful rate control within 30 min of medication administration, defined as a heart rate (HR) < 100 beats per minute or a HR reduction ≥ 20%...
April 27, 2018: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29728831/time-trends-in-characteristics-clinical-course-and-outcomes-of-13-791-patients-with-acute-heart-failure
#2
Pere Llorens, Patricia Javaloyes, Francisco Javier Martín-Sánchez, Javier Jacob, Pablo Herrero-Puente, Víctor Gil, José Manuel Garrido, Eva Salvo, Marta Fuentes, Héctor Alonso, Fernando Richard, Francisco Javier Lucas, Héctor Bueno, John Parissis, Christian E Müller, Òscar Miró
OBJECTIVES: To analyse time trends in patient characteristics, clinical course, hospitalisation rate, and outcomes in acute heart failure along a 10-year period (2007-2016). METHODS: The EAHFE registry has prospectively collected 13,971 consecutive AHF patients diagnosed in 41 Spanish emergency departments (EDs) at five different time points (2007/2009/2011/2014/2016). Eighty patient-related variables and outcomes were described and statistically significant changes along time were evaluated...
May 4, 2018: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/29666358/revisiting-atrioventricular-nodal-ablation-and-cardiac-pacing-of-atrial-fibrillation-in-a-patient-with-dextrocardia
#3
Munish Sharma, Ritesh Neupane, Koroush Khalighi
BACKGROUND Poorly controlled ventricular rate associated with atrial fibrillation (AF) leads to tachycardia-induced left ventricular dysfunction. Atrioventricular (AV) nodal ablation and cardiac pacing is the standard of care in refractory congestive heart failure (CHF) due to AF with moderate to rapid ventricular response that failed conventional medical therapy. If the patient is not a candidate for AF ablation with pulmonary vein isolation and elimination of AF foci, this is an effective approach, but it does have some challenges when done in a patient with dextrocardia and situs inversus...
April 18, 2018: American Journal of Case Reports
https://www.readbyqxmd.com/read/29627355/contemporary-reviews-in-critical-care-medicine-atrial-fibrillation-in-the-intensive-care-unit
#4
REVIEW
Nicholas A Bosch, Jonathan Cimini, Allan J Walkey
Atrial fibrillation (AF) is the most common arrhythmia encountered in the intensive care unit. Pre-existing AF is highly prevalent among older patients with chronic conditions who are at risk for critical illness, while new-onset AF can be triggered by accelerated atrial remodeling and arrhythmogenic triggers encountered during critical illness. The acute loss of atrial systole and onset of rapid ventricular rates that characterize new-onset AF often lead to decreased cardiac output and hemodynamic compromise...
April 5, 2018: Chest
https://www.readbyqxmd.com/read/29619256/cardiac-aspergilloma-a-rare-case-of-a-cardiac-mass-involving-the-native-tricuspid-valve-right-atrium-and-right-ventricle-in-an-immunocompromised-patient
#5
Christina S Chen-Milhone, Kalyan Chakravarthy Potu, Sudhir Mungee
Aspergillus can cause devastating opportunistic infections in immunocompromised patients. Rarely does this fungus invade the heart, and when it does, survival is especially poor despite optimal medical and surgical treatment. We report a case of cardiac aspergilloma with involvement of the tricuspid valve and both the right atrium and ventricle found on a transthoracic echocardiogram in an immunocompromised patient after developing atrial fibrillation with rapid ventricular rate. The findings from this case suggest that early clinical suspicion is critical in early diagnosis and thus early treatment...
2018: Case Reports in Cardiology
https://www.readbyqxmd.com/read/29560075/intravenous-continuous-infusion-vs-oral-immediate-release-diltiazem-for-acute-heart-rate-control
#6
Kimberly N Means, Amanda E Gentry, Tammy T Nguyen
Introduction: Atrial fibrillation (AF) is a common diagnosis of patients presenting to the emergency department (ED). Intravenous (IV) diltiazem bolus is often the initial drug of choice for acute management of AF with rapid ventricular response (RVR). The route of diltiazem after the initial IV loading dose may influence the disposition of the patient from the ED. However, no studies exist comparing oral (PO) immediate release and IV continuous infusion diltiazem in the emergency setting...
March 2018: Western Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29470800/landiolol-a-review-in-tachyarrhythmias
#7
Yahiya Y Syed
Intravenous landiolol [Rapibloc® (EU)], an ultra short-acting highly cardioselective β1 -blocker, is approved in the EU for the rapid short-term control of tachyarrhythmias in the perioperative and intensive care settings. It has long been used in Japan to treat perioperative tachyarrhythmias. The efficacy of landiolol has been demonstrated in a large number of randomized controlled clinical trials. Landiolol significantly reduced heart rate in patients with postoperative or intraoperative supraventricular tachycardia relative to placebo and in those with atrial fibrillation/flutter and left ventricular dysfunction relative to digoxin...
March 2018: Drugs
https://www.readbyqxmd.com/read/29250236/post-ictal-transient-atrial-fibrillation-as-a-rare-manifestation-of-grand-mal-seizure
#8
Gulshan Man Singh Dangol, David A Hoffman
Atrial fibrillation (AF) most frequently occurs as a consequence of multiple etiologies including valvular disease, coronary artery disease, hyperthyroidism, alcohol ingestion, and pulmonary embolism. However, on rare occasion transient AF may be a result of generalized tonic-clonic seizures (GTCS). A 33-year-old-man presented to the emergency department following GTCS in AF with rapid ventricular response. He had no previous documented history. Diagnostic evaluation including electrolytes, thyroid function, cardiac enzymes, serum and urine drug screen, and two-dimensional echocardiogram were unremarkable...
August 2017: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/29220422/atrioventricular-node-ablation-and-his-bundle-pacing
#9
Pugazhendhi Vijayaraman, Faiz A Subzposh, Angela Naperkowski
Aims: Atrioventricular node ablation (AVNA) and right ventricular pacing (RVP) are effective therapies for patients with atrial fibrillation (AF) and rapid ventricular rates. His bundle pacing (HBP) is a physiologic alternative to RVP. The aim of our study is to assess the feasibility and safety of HBP in patients undergoing AVNA and its effect on left ventricular (LV) function. Methods and results: Permanent HBP is the preferred form of ventricular pacing at our institute...
December 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29218016/synergistic-anti-arrhythmic-effects-in-human-atria-with-combined-use-of-sodium-blockers-and-acacetin
#10
Haibo Ni, Dominic G Whittaker, Wei Wang, Wayne R Giles, Sanjiv M Narayan, Henggui Zhang
Atrial fibrillation (AF) is the most common cardiac arrhythmia. Developing effective and safe anti-AF drugs remains an unmet challenge. Simultaneous block of both atrial-specific ultra-rapid delayed rectifier potassium (K+ ) current (IKur ) and the Na+ current (INa ) has been hypothesized to be anti-AF, without inducing significant QT prolongation and ventricular side effects. However, the antiarrhythmic advantage of simultaneously blocking these two channels vs. individual block in the setting of AF-induced electrical remodeling remains to be documented...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29205499/retrospective-evaluation-of-the-effect-of-heart-rate-on-survival-in-dogs-with-atrial-fibrillation
#11
B Pedro, J Dukes-McEwan, M A Oyama, M S Kraus, A R Gelzer
BACKGROUND: Atrial fibrillation (AF) usually is associated with a rapid ventricular rate. The optimal heart rate (HR) during AF is unknown. HYPOTHESIS/OBJECTIVES: Heart rate affects survival in dogs with chronic AF. ANIMALS: Forty-six dogs with AF and 24-hour ambulatory recordings were evaluated. METHODS: Retrospective study. Holter-derived HR variables were analyzed as follows: mean HR (meanHR, 24-hour average), minimum HR (minHR, 1-minute average), maximum HR (maxHR, 1-minute average)...
January 2018: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/29168622/mitral-valve-pressure-gradient-after-percutaneous-mitral-valve-repair-every-beat-counts
#12
Daniel Lavall, Bruno Scheller, Christian Werner, Axel Buob, Felix Mahfoud
A patient presented with symptoms of decompensated heart failure 2 months after percutaneous mitral valve (MV) repair. Echocardiography demonstrated impaired left ventricular function with elevated MV pressure gradients and pulmonary pressures during rapid atrial fibrillation. Heart rate control was achieved by implantation of a biventricular pacemaker with subsequent His-bundle ablation because atrial fibrillation was refractory to medical treatment. During biventricular pacing at different rates (50-110 b...
February 2018: ESC Heart Failure
https://www.readbyqxmd.com/read/29102101/iodinated-contrast-administration-resulting-in-cardiogenic-shock-in-patient-with-uncontrolled-graves-disease
#13
Wes Brundridge, Jack Perkins
BACKGROUND: Thyroid storm (also known as thyroid or thyrotoxic crisis) is part of the spectrum of thyrotoxicosis and represents the extreme end of that spectrum. The condition is quite rare, yet mortality rates are high and may approach 10-30%. CASE REPORT: A 34-year-old-man who had a history of Graves disease presented in atrial fibrillation with rapid ventricular response and mild congestive heart failure. During the course of his Emergency Department (ED) stay he deteriorated into cardiogenic shock...
December 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29055615/achieving-ventricular-rate-control-in-patients-taking-chronic-beta-blocker-therapy
#14
COMPARATIVE STUDY
Megan E Feeney, Sandra L B Rowe, Nathan D Mah, Cassie A Barton, Ran Ran
STUDY OBJECTIVE: The objective of this study is to evaluate the difference in response to ventricular rate control with intravenous (IV) metoprolol compared to IV diltiazem in patients taking chronic beta-blocker therapy who present to the emergency department (ED) in atrial fibrillation (AF) with rapid ventricular rate (RVR). METHODS: This was a single-center, retrospective study of adult patients taking chronic oral metoprolol. Chronic metoprolol therapy was defined as patients prescribed and taking oral metoprolol within 5days of study inclusion...
January 2018: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29016724/triggered-intracellular-calcium-waves-in-dog-and-human-left-atrial-myocytes-from-normal-and-failing-hearts
#15
Gary L Aistrup, Rishi Arora, Søren Grubb, Shin Yoo, Benjamin Toren, Manvinder Kumar, Aaron Kunamalla, William Marszalec, Tej Motiwala, Shannon Tai, Sean Yamakawa, Satya Yerrabolu, Francisco J Alvarado, Hector H Valdivia, Jonathan M Cordeiro, Yohannes Shiferaw, John Andrew Wasserstrom
Aims: Abnormal intracellular Ca2+ cycling contributes to triggered activity and arrhythmias in the heart. We investigated the properties and underlying mechanisms for systolic triggered Ca2+ waves in left atria from normal and failing dog hearts. Methods and results: Intracellular Ca2+ cycling was studied using confocal microscopy during rapid pacing of atrial myocytes (36 °C) isolated from normal and failing canine hearts (ventricular tachypacing model). In normal atrial myocytes (NAMs), Ca2+ waves developed during rapid pacing at rates ≥ 3...
November 1, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28993851/usefulness-of-the-wcd-in-patients-with-suspected-tachymyopathy
#16
Julia W Erath, Mate Vamos, Alexander P Benz, Stefan H Hohnloser
AIMS: The wearable cardioverter defibrillator (WCD) is used for temporary protection of patients deemed to be at high risk for sudden death. There is limited experience regarding the clinical development of patients with tachymyopathy. We aimed to evaluate the clinical development of tachymyopathy patients protected with a WCD in a single-center non-randomized patient cohort. METHODS AND RESULTS: We fitted 130 consecutive patients deemed to be at high risk for ventricular tachyarrhythmias with the WCD...
January 2018: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/28902899/selective-autonomic-stimulation-of-the-av-node-fat-pad-to-control-rapid-post-operative-atrial-arrhythmias
#17
Marco A Mercader, Dingchao He, Aditya C Sharma, Mark C Marchitto, Gregory Trachiotis, Gene A Bornzin, Richard Jonas, Jeffrey P Moak
Junctional ectopic tachycardia (JET) and atrial fibrillation (AF) occur in patients recovering from open-heart surgery (OHS). Pharmacologic treatment is used for the control of post-operative atrial arrhythmias (POAA), but is associated with side effects. There is a need for a reversible, modulated solution to rate control. We propose a non-pharmacologic technique that can modulate AV nodal conduction in a selective fashion. Ten mongrel dogs underwent OHS. Stimulation of the anterior right (AR) and inferior right (IR) fat pad (FP) was done using a 7-pole electrode...
2017: PloS One
https://www.readbyqxmd.com/read/28767580/metastatic-cardiac-tumor-presenting-as-atrial-fibrillation-in-a-previously-healthy-woman-a-case-report
#18
Chi-Wen Cheng, Ning-I Yang, Koon-Kwan Ng, Wen-Jin Cherng
RATIONALE: Metastatic cardiac tumor (MCT) is rare in clinical practice. MCT presenting initially as atrial fibrillation (AF) is even rarer. PATIENT CONCERNS: We report a 47-year-old woman with no previous medical history presented with intermittent palpitation for 3 days. DIAGNOSES: The electrocardiography showed AF with rapid ventricular rate. The transthoracic echocardiography showed a 4 × 4 cm mass occupying the left atrium (LA)...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28762929/-risk-factors-of-cardiovascular-complications-after-beating-heart-coronary-artery-bypass-grafting-in-patients-with-type-two-diabetes
#19
S Y Borodashkina, K V Protasov, V A Podkamennyi
AIM: to determine risk factors of early cardiovascular complications after beating-heart coronary artery bypass grafting (CABG) in patients with ischemic coronary disease (IHD) and type two diabetes (D2). MATERIALS AND METHODS: We included into this study 188 patients (mean age 59 years, 85.1% men) with IHD and D2 who underwent off-pump CABG. The following cardiovascular complications (CVC) registered within 7 days after surgery were analyzed: myocardial infarction (MI), stroke/transient ischemic attack (S/TIA), atrial fibrillation (AF)...
March 2017: Kardiologiia
https://www.readbyqxmd.com/read/28725332/thyrotoxic-valvulopathy-case-report-and-review-of-the-literature
#20
Keniel Pierre, Sushee Gadde, Bassam Omar, G Mustafa Awan, Christopher Malozzi
We report a 42-year-old female who was admitted for abdominal pain, and also endorsed dyspnea, fatigue and chronic palpitations. Past medical history included asthma, patent ductus arteriosus repaired in childhood and ill-defined thyroid disease. Physical examination revealed blood pressure of 136/88 mm Hg and heart rate of 149 beats per minute. Cardiovascular exam revealed an irregularly irregular rhythm, and pulmonary exam revealed mild expiratory wheezing. Abdomen was tender. Electrocardiogram revealed atrial fibrillation with rapid ventricular response which responded to intravenous diltiazem...
June 2017: Cardiology Research
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