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Cordarone (Amiodarone)
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Cordarone

Cordarone is used to treat a variety of different types of fast, abnormal heart rhythms (these are known as tachyarrhythmias). It is used for severe rhythm disorders when other treatments are not effective or cannot be used.

Other names for this medication:

Similar Products:
Cartia Xt, Lanoxin

 

Also known as:  Amiodarone.

Description

Cordarone is an antiarrhythmic. It works by stabilizing the heart rhythm in conditions in which the heart is beating too fast or in an irregular rhythm.

Generic name of Cordarone is Amiodarone.

Cordarone is also known as Amiodarone, Pacerone.

Brand name of Cordarone is Cordarone.

Dosage

Cordarone is best taken with food. However, it is more important to take it consistently with regard to meals. If you take it with food, try to always take it with food to improve absorption of this medicine. If you prefer to take it on an empty stomach, then always try to take it on an empty stomach.

If you want to achieve most effective results do not stop taking Cordarone suddenly.

Overdose

If you overdose Cordarone and you don't feel good you should visit your doctor or health care provider immediately.

Storage

Store at room temperature between 20 and 25 degrees C (68 and 77 degrees F) away from moisture, light and heat. Keep container tightly closed. Throw away any unused medicine after the expiration date. Keep out of the reach of children.

Side effects

The most common side effects associated with Cordarone are:

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Side effect occurrence does not only depend on medication you are taking, but also on your overall health and other factors.

Contraindications

Do not take Cordarone if you are allergic to Cordarone components.

Do not take Cordarone if you're pregnant or you plan to have a baby, or you are a nursing mother.

Do not take Cordarone if you have complete, second degree, third degree, or severe sinoatrial heart block, an abnormally slow heartbeat, or shock due to serious heart problems, or if you have had fainting due to slow heartbeat (except if you have a pacemaker).

Do not take Cordarone if you are taking cisapride, dofetilide, an H1 antagonist (eg, astemizole, loratadine, terfenadine), an HIV protease inhibitor (eg, ritonavir), a phosphodiesterase type 5 inhibitors (eg, vardenafil), or a streptogramin (eg, dalfopristin, quinupristin).

Lab tests, including electrocardiogram (ECG), chest x-rays, lung tests, liver tests, thyroid tests, and eye exams, may be performed to monitor your progress.

Be careful with Cordarone if you have allergies to medicines, foods, or other substances.

Use Cordarone with great care in case you want to undergo an operation (dental or any other).

Avoid alcohol.

Avoid machine driving.

Try to protect your skin from the sunlight.

Do not stop taking Cordarone suddenly.

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Atrial fibrillation is the most common of the serious cardiac rhythm disturbances and is responsible for substantial morbidity and mortality. Amiodarone is currently one of the most widely used and most effective antiarrhythmic agents for atrial fibrillation. But during chronic usage amiodarone can cause some serious extra cardiac adverse effects, including effects on the thyroid. Dronedarone is a newer therapeutic agent with a structural resemblance to amiodarone, with two molecular changes, and with a better side effect profile. Dronedarone is a multichannel blocker and, like amiodarone, possesses both a rhythm and a rate control property in atrial fibrillation. The US Food and Drug Administration approved dronedarone for atrial fibrillation on July 2, 2009. In this review, we discuss the role of dronedarone in atrial fibrillation.

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The Multicenter Automatic Defibrillator Implantation Trial (MADIT) and the Coronary Artery Bypass Graft (CABG)-Patch study were the first 2 randomized trials investigating the usefulness of the implanted cardioverter defibrillator (ICD) for primary prevention of sudden death. Patients enrolled in MADIT and CABG-Patch had never experienced a sustained ventricular tachycardia (VT) but were thought to be at high risk of sudden death. All patients had coronary artery disease and severely suppressed left ventricular ejection fraction. CABG-Patch patients received their ICD during CABG surgery. Most MADIT patients already had received CABG or percutaneous transluminal coronary angiography and had no indication for revascularization procedures at study entry. MADIT patients had nonsustained spontaneous VT and inducible, nonsuppressible VT; CABG-Patch patients had only an abnormal signal-averaged electrocardiogram as an indicator of their arrhythmic risk. CABG-Patch patients did not benefit from ICD implantation, presumably due to the influence of revascularization on ischemia and left ventricular function. In contrast, MADIT patients showed an improved survival by the ICD. MADIT patients had no need for revascularization and, presumably, their risk indicator for arrhythmic events was stronger than the one used in CABG-Patch. MADIT criteria have become a class I indication for ICD implantation and, in the absence of testing for suppressibility of induced VTs, a class IIb criterion for ICD implantation. Screening for MADIT patients is expensive, as only relatively few patients after myocardial infarction fulfill the criteria. Nevertheless, in comparison with amiodarone, treatment of MADIT patients with ICDs seems to be cost-effective, especially if ICDs are implanted transvenously and have the improved battery longevity of the current devices.

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The cases presented demonstrate that rescue VT ablation of drug-refractory electrical storm is possible by a substrate-orientated ablation approach even in patients with complex chronic infarction and various VTs.

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Amiodarone is superior to placebo for cardioversion of AF, and even though the onset of conversion is delayed, its efficacy is similar at 24 h compared with class Ic drugs. These results favor amiodarone as a reasonable alternative for patients with recent AF in whom class Ic and other, more rapidly acting antiarrhythmic drugs cannot be used.

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Administration of oral azithromycin, in addition to previously well-tolerated long-term amiodarone therapy, was associated with a marked prolongation of QT interval and increased QT dispersion, both substrates for life-threatening ventricular tachyarrhythmia and torsades de pointes. This is a report of QT prolongation and increased QT dispersion associated with the use of azithromycin. The report assumes an added significance, in view of widespread empirical use of this antibiotic for the treatment of lower respiratory infections and belief of its safety in patients with cardiac diseases. Based on the authors' experience, they would like to emphasize that the combination of azithromycin with other drugs known to prolong QT or causing torsades de pointes be used with caution until the question of the proarrhythmic effect of azithromycin is resolved by further studies.

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The objective of this prospective study was to identify factors affecting the response to glucocorticoids in a large cohort of patients with type 2 AIT followed prospectively.

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Restoration of SR was achieved in 36 of 39 dogs (92.3%). Presence of heart disease or atrial enlargement had no effect on cardioversion characteristics or ability to restore SR. Median duration of SR following cardioversion and treatment with amiodarone was 120 days. Dogs with lone AF remained in SR longer than those with heart disease.

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To evaluate the utility of color-flow Doppler sonography (CFDS) in the differential diagnosis and management of AIT.

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A cohort of 1073 patients admitted to the CCU within 24 h of the onset of symptoms of an acute myocardial infarction and heart failure (Killip and Kimball A-B) were randomized to receive amiodarone (n=542) or placebo (n=531) for 6 months. Because of the higher mortality, on an interim analysis, from a 'high dose' of amiodarone or placebo (516 patients) the protocol was changed to a 'low dose' or placebo (557 patients). Mortality with high doses of amiodarone was 16.30% vs 10.16% in the placebo group (P=0.04), whereas mortality with low doses was 6.61% vs 9.47% in the control group (P=0.20). Several non-fatal adverse effects were observed in 108 and 73 patients treated with amiodarone and placebo, respectively.

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There were no differences between groups regarding to age, gender and delay from symptoms initiation and medical assistance. Conversion to sinus rhythm occurred, in QG-71.4% cases; PG-47.8% and AG-50% (p > 0.05). Time delay in minutes to conversion were, respectively (media +/- SD): QG-112 +/- 43; PG-44.1 +/- 28; AG-20 +/- 13, significantly lower in PG and AG related to QG (p = 0.001). Although not significant, side effects were observed mostly in PG.

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Retrospective case series of consecutive emergency admissions with haemodynamically-tolerated sustained monomorphic VT administered bolus dose intravenous amiodarone 300 mg, according to current UK advanced life support practice guidelines.

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Amiodarone's role as a cause of toxic optic neuropathy is based on case reports. Annual frequency estimates of 0.36% to 2.0%, which have been made without reference to the dose or duration of treatment, are 12 to 200 times higher than those for idiopathic nonarteritic anterior ischemic neuropathy. The object of this study was to determine the incidence, dose, and time until onset of bilateral vision loss from amiodarone as a secondary end point in an investigation of amiodarone's role in preventing sudden death.

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Several medications have been associated with the development of the BOOP lesion. Often, symptoms include nonproductive cough and shortness of breath with bilateral crackles by examination. Occasionally, there is fever and rash, and, rarely, eosinophilia. The chest radiograph usually shows bilateral patchy infiltrates. In rare situations, the outcome is fatal, although cessation of the medication or treatment with corticosteroid therapy results in resolution of symptoms and radiographic abnormalities for most patients.

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A combined mexiletine and amiodarone treatment was applied in nine cases with recurrent refractory ventricular tachycardia. During the first two days of treatment, mexiletine and amiodarone were perfused intravenously at a dose of 1,000 mg. and 1,500 mg. per 24 hours, respectively. Simultaneously amiodarone was also given orally at a dose of 600 mg. per 24 hours. From the third day onwards, the intravenous administration was interrupted and both drugs were continued orally at a dose of 600 mg. daily. The first three patients were very critically ill and had had at least five episodes of ventricular tachycardia per 24 hours during the last 10 days in the intensive care unit. The treatment resulted in total suppression of the tachycardic episodes within three days after initiation of therapy. In the remaining six cases, ventricular tachycardia was easily initiated by programmed electrical stimulation of the heart. No arrhythmia could be elicited by repeated testing on the seventh day of treatment. The mean follow-up period was 6 months. Two patients with poor left ventricular function died in intractable heart failure. Another one died suddenly 4-1/2 months after his release from the hospital. He had a large aneurysm and whether he continued his treatment is unknown. A fourth patient had an aneurysmectomy; he suffered a recurrence, and died at his second operation. All the others presently remain asymptomatic. The association of a class I (mexiletine) with a class III (amiodarone) agent is theoretically attractive for the treatment of refractory ventricular arrhythmias. The present findings corroborate this hypothesis, but show that this association is not able to protect individuals with severe underlying myocardial damage.

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Dispersion of ventricular repolarization, assessed as QT dispersion in the ECG or by multiple monophasic action potential (MAP) recordings, is defined as the difference between the earliest and latest repolarization. It is thus measured in the time domain. However, myocardial refractoriness is primarily a function of the membrane potential during phase 3 repolarization. The purpose of this study, therefore, was to measure dispersion of ventricular repolarization in the voltage domain and to study its relation to VF inducibility. To further validate this concept, the effect of chronic amiodarone treatment on the voltage dispersion were assessed. MAPs were recorded simultaneously at 10 epicardial and endocardial sites in isolated rabbit hearts, both under baseline conditions (n = 8) and after chronic amiodarone treatment (n = 8). Repolarization dispersion in the voltage domain was calculated as the difference between the highest and lowest repolarization level of all 10 MAPs at 10-ms steps, starting from the MAP plateau level to complete repolarization. Plotting these voltage differences along the time axis resulted in a dispersion curve, which rose during early repolarization, reached a peak during phase 3 repolarization, and thereafter declined toward zero. There was a close correlation between VF vulnerability in response to electrical field stimuli and the time during which voltage dispersion was maximal (r = 0.828, P < 0.0001). Amiodarone caused a right-ward shift of both the dispersion curve (P = 0.007) and VF vulnerability (P = 0.025), but did not change the magnitude nor the shape of the voltage dispersion curve and its relation to VF vulnerability. Repolarization dispersion in the voltage domain describes an alternate approach for evaluating the heterogeneity of ventricular repolarization and may help to characterize arrhythmia susceptibility under experimental conditions.

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A randomized trial of 209 ambulatory patients with recurrent symptomatic persistent atrial fibrillation, conducted from December 2002 through March 2007 at 7 Dutch medical centers.

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A 70-year-old woman suffering from atrial fibrillation was treated with amiodarone, but developed acute respiratory failure necessitating mechanical ventilation for four weeks. Pulmonary function remained restrictively impaired after weaning from the ventilation, due to pulmonary fibrosis. Pulmonary toxicity is a well-known adverse reaction to amiodarone, but it rarely requires mechanical ventilation. The Netherlands Centre for Monitoring of Adverse Reactions to Drugs received II reports of this life-threatening reaction since 1976.

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Sequential usage of up to 3 antiarrhythmic drugs of different classes of action provides almost complete success in conversion of recent-onset AF in patients refractory to short-term conversion attempt in the emergency room.

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High uptake and retention of MIBI in thyroid tissue is characteristic in Type I AIT, while in sharp contrast, low uptake of MIBI in the thyroid tissue was observed in Type II AIT. Mixed-type AIT shows uptake value between Types I and II. MIBI imaging outperforms other methods with a lower misdiagnosis rate.

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Recent demonstration that the level of sympathetic nervous drive to the failing heart in patients with severe heart failure is a major determinant of prognosis, and that mortality in heart failure is reduced by beta-adrenergic blockade, indicate the clinical relevance of heart failure neuroscience research. The cardiac sympathetic nerves are preferentially stimulated in severe heart failure, with the application of isotope dilution methods for measuring cardiac norepinephrine release to plasma indicating that in untreated patients cardiac norepinephrine spillover is increased as much as 50-fold, similar to levels of release seen in the healthy heart during near maximal exercise. This preferential activation of the cardiac sympathetic outflow contributes to arrhythmia development and to progressive deterioration of the myocardium, and has been linked to mortality in both mild and severe cardiac failure. Although the central nervous system mechanisms involved in the sympathetic nervous activation at present remain uncertain, increased intracardiac diastolic pressure seems to be one peripheral reflex stimulus, and increased forebrain norepinephrine turnover an important central mechanism.Additional neurophysiological abnormalities present in the failing human heart include release of the sympathetic cotransmitters, epinephrine and neuropeptide Y, at high levels more typical of their release during exercise in healthy subjects, and the possible presynaptic augmentation of norepinephrine release from the cardiac sympathetic nerves by the regionally released epinephrine. Following on the demonstrable benefit of beta-adrenergic blockade in heart failure, additional antiadrenergic measures (central suppression of sympathetic outflow with imidazoline binding agents such as clonidine, blocking of norepinephrine synthesis by dopamine-beta-hydroxylase inhibition, antagonism of neuropeptide Y) are now under active investigation.

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Tremendous strides have been made in recent years in the treatment and prevention of sudden cardiac death. Large scale trials have now established several interventions that may improve survival in patients susceptible to sudden cardiac death. In patients who have had a sustained ventricular tachyarrhythmia, the current therapy of choice is an implantable cardioverter defibrillator. For prophylaxis of sudden cardiac death in patients without a previous event, several approaches should be considered. Beta-Adrenergic blocking agents are an effective pharmacologic therapy in patients following myocardial infarction, and their efficacy has also most recently been demonstrated in patients with congestive heart failure. There is no Vaughan Williams class I or III antiarrhythmic drug that has demonstrated efficacy as a prophylactic agent to reduce mortality in these populations, with the possible exception of amiodarone. The best therapeutic approach for prophylactic therapy to prevent sudden cardiac death appears to be the implantable cardioverter defibrillator; however, its use can be justified only in patients at high risk for developing sudden cardiac death. Further work is needed to identify the high risk populations in which this therapy is warranted.

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Pediatric resuscitation is a constantly evolving subject that is on the mind of anyone taking care of sick children. Clinicians are continually searching for the most effective methods to resuscitate children in terms of short- and long-term outcomes. It is important to be familiar with not only the agents being used but also the optimal way to use them.

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A total of 3978 episodes of venous catheterization were prospectively included from September 2002 to December 2007. A catheter management protocol was implemented during this period of time. The incidence and variables associated to the occurrence of PPIVC were determined.

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One-thousand four hundred and thirty-five acute medical admissions, of whom 40 patients (2.8%) had AF.

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Serum concentrations of total T4 significantly increased in the last 3 days of the study (ANOVA, P = 0.0002). However, serum total T3 progressively and significantly decreased throughout the study (ANOVA, P < 0.0001). Serum free thyroid hormone concentrations (free T3 and free T4) did not significantly change during the study. Serum rT3 (ANOVA, P < 0.0001) and TSH (ANOVA, P = 0.0009) rapidly and progressively increased throughout the study. Starting from the first 24 h, serum concentrations of T3 sulphate (T3-S) significantly and progressively increased from (mean +/- SD) 0.057 +/- 0.029 nmol/l under basal conditions to 0.089 +/- 0.036 nmol/l after 5 days of amiodarone therapy (ANOVA, P = 0.0011). Since total T3 levels progressively decreased throughout the study, the ratio of the T3-S and total T3 values progressively increased from 4.8 +/- 2.7% under basal conditions to 10.6 +/- 7.3% after 5 days of amiodarone therapy (ANOVA, repeated measures, P < 0.0001). Basal serum concentrations of sulphate metabolites of T2 (T2-S, 2.22 +/- 1.7 nmol/l) and T1 (T1-S, 1.29 +/- 0.74 nmol/l) did not significantly change throughout the study.

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In this new era of managed care, the emphasis has been on the reduction of intensive-care stay after coronary artery bypass surgery. "Fast-track" or rapid weaning protocols have become increasingly popular due to evidence that shows their cost-effectiveness and safety. With new advances in surgical and anesthetic techniques, the goal is often to have patients extubated within 4 to 6 hours upon arrival in the intensive-care unit. Patients who are not candidates for the fast-track protocol are often those who either have poor respiratory function and a large A-a gradient or those who have hemodynamic instability from poor cardiac function after bypass. These patients need more intensive care and more traditional weaning from mechanical ventilation. Those that are not able to wean from the mechanical ventilator within a few weeks are candidates for tracheostomy in order to avoid complications from prolonged endotracheal intubation and to improve pulmonary toilet. The treatment of perioperative low cardiac output syndrome is another goal after bypass surgery. Poor cardiac function can be managed with a variety of vasopressor and inotropic agents based on what the suspected derangement is from clinical examination and hemodynamic measurements (eg, low preload, low cardiac index, high or low systemic vascular resistance). Another modality that has been shown to have benefit on reducing hospital stay and costs is prophylaxis for atrial fibrillation, which may occur in 40% of patients who undergo bypass surgery and in 60% of those who undergo valve replacement surgery. Beta-blockers and amiodarone have both been found to be effective as prophylaxis against postoperative atrial fibrillation.

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Postoperative atrial fibrillation is the most frequent complication arising after cardiac surgery, occurring in 40% of cases. The treatment of postoperative atrial fibrillation with epicardial amiodarone/corticosteroid hydrogel delivery can increase efficacy and reduce side effects. To further evaluate whether amiodarone hydrogel is superior to corticosteroid hydrogel or placebo, we performed a randomized prospective study in 150 patients with coronary artery bypass grafting to compare the effectiveness with different epicardial drug approaches in the postoperative period.

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Atrial fibrillation is the most common cardiac rhythm disorder associated with hospitalization. Two therapeutic options have been available: antiarrhythmic drug therapy, and external or internal electrical cardioversion. Electrical cardioversion of atrial fibrillation remains one of the most widely used and effective treatments for the restoration of normal sinus rhythm. However, many patients continue to receive an antiarrhythmic drug before and after cardioversion in an attempt either to cardiovert the arrhythmia chemically or to maintain sinus rhythm after successful cardioversion. Because some pharmacological agents can affect the cardioversion procedure for atrial fibrillation or flutter, and because many patients with such arrhythmias may require electrical cardioversion when they are taking antiarrhythmic drugs, the question of a possible effect of drug therapy on the efficacy and safety of electrical cardioversion of atrial fibrillation arises. Early reports of direct current cardioversion provoking potentially lethal ventricular arrhythmias raised suspicions of an arrhythmogenic role for digoxin antiarrhythmic therapy, and it is customary to withhold these drugs for 24 to 48 h before cardioversion is attempted. However, this complication is likely to arise only in patients who are close to, or actually manifesting, signs of drug toxicity. On the other hand, treatment with therapeutic concentrations of antiarrhythmic drugs before cardioversion may in some cases be associated with a significant reduction in the number of shocks and decreased energy required to restore sinus rhythm, a lower incidence of postshock arrhythmias and a reduced risk of early recurrence of atrial fibrillation.

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To estimate cost-effectiveness of dronedarone versus amiodarone, propafenone, and sotalol in patients with atrial fibrillation (AF).

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Amiodarone is used in treatment of cardiac arrhythmias. Therapeutic use of amiodarone is limited by its side effects, including pulmonary toxicity. Human Placenta Extract (HPE) contains a variety of bio-active substances. Thus, the present study aimed to quantitatively evaluate the protective effects of HPE on the structural lung changes induced by amiodarone using stereological methods. Sprague-Dawley male rats were divided into four groups. The first, second, and third groups received no treatment, amiodarone (100 mg/kg, i.p.), and HPE (500 µL/kg, i.p.), respectively. The fourth group was treated with amiodarone + HPE. The animals' lungs were removed after 10 days. The lung volume was estimated using the Cavalieri principle on the embedded and cut tissue and corrected for shrinkage. The volume density of the parenchyma, alveolar space, and septa were estimated using point-counting method. The surface area of the alveoli, the volume-weighted means alveoli volume, and mean septum thickness were also estimated in all groups. The total volume and thickness of the alveolar septum were increased by 40 % and 28 %, respectively. However, the total volume of the alveolar space was decreased by 31 % in the amiodarone treated-rats. The mean alveolar volume was decreased by 64 % on the average in the amiodarone treated group. Yet, these changes were not detected in the amiodarone+HPE group. Moreover, RBC accumulation in the alveolar space and septa was ameliorated after HPE treatment. HPE can protect the lung tissue from the structural changes induced by amiodarone.

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cordarone brand name 2016-09-20

Amiodarone-induced thyroid dysfunction is relatively rare compared to the number of patients treated with this anti-arrhythmic drug (27.8%) from the group under study. Thyroid dysfunction, regardless of the type (with buy cordarone hypo or hyper-function), represents a negative element in the evolution of patients with pre-existing heart diseases, not only by aggravating the clinical picture of the basic illness, but also by the necessity of permanently reviewing the therapeutic scheme imposed also by the association of thyroid dysfunction medication, according to case.

cordarone drug class 2015-10-01

 The fWP has proved to predict long-standing AF early recurrence after ECV and can be combined with SampEn to improve its diagnostic ability. Furthermore, a thorough analysis of the buy cordarone results allowed outlining possible associations between these two features and the concomitant status of atrial remodeling.

cordarone 900 mg 2016-05-06

Of the 128 articles evaluated on the overall topic of atrial fibrillation (AF) after cardiac surgery, only 19 studies dealing with pharmacologic heart rhythm control were relevant for inclusion in this analysis, indicating the relative paucity of evidence-based studies addressing this topic. We found limited data on guiding treatment for the rhythm control of AF following cardiac surgery in patients who do not require urgent cardioversion; therefore, the choice of an antiarrhythmic drug needs to be guided by patient characteristics. Based on limited available evidence, amiodarone is recommended for pharmacologic conversion of postoperative AF and AFL in patients with depressed left ventricular function who do not need urgent electrical cardioversion. This recommendation is made largely because of the effectiveness of amiodarone and also because of its relatively favorable side-effects profile. Sotalol and class 1A antiarrhythmic drugs are reasonable choices for patients with coronary artery disease who do not have congestive heart failure. There are currently no definitive data to guide the decision about the duration of antiarrhythmic drug therapy for patients with AF following cardiac surgery. Most protocols continue therapy with the antiarrhythmic drug buy cordarone for 4 to 6 weeks following surgery, but evidence from randomized studies is lacking.

cordarone cost 2015-12-02

In a prospective, multicenter, population-based cohort with left ventricular ejection fraction ≤35% referred for primary prevention implantable cardioverter defibrillator, we developed dual risk stratification models to determine the competing risks of appropriate defibrillator shock versus mortality using a Fine-Gray subdistribution hazard model. Among 7020 patients referred, 3445 underwent defibrillator implant (79.7% men, median, 66 years [25th, 75th: 58-73]). During 5918 person-years of follow-up, appropriate shock occurred in 204 patients (3.6 shocks/100 person-years buy cordarone ) and 292 died (4.9 deaths/100 person-years). Competing risk predictors of appropriate shock included nonsustained ventricular tachycardia, atrial fibrillation, serum creatinine concentration, digoxin or amiodarone use, and QRS duration near 130-ms peak. One-year cumulative incidence of appropriate shock was 0.9% in the lowest risk category, and 1.7%, 2.5%, 4.9%, and 9.3% in low, intermediate, high, and highest risk groups, respectively. Hazard ratios for appropriate shock ranged from 4.04 to 7.79 in the highest 3 deciles (all P≤0.001 versus lowest risk). Cumulative incidence of 1-year death was 0.6%, 1.9%, 3.3%, 6.2%, and 17.7% in lowest, low, intermediate, high, and highest risk groups, respectively. Mortality hazard ratios ranged from 11.48 to 36.22 in the highest 3 deciles (all P<0.001 versus lowest risk).

cordarone y alcohol 2017-11-28

In an experimental model of acute ischemia, intravenous amiodarone (10 mg/kg) influences positively the response to defibrillation of ventricular fibrillation refractory to lidocaine and epinephrine plus direct current countershocks buy cordarone .

cordarone drug information 2017-02-14

Our purpose was to evaluate buy cordarone the efficacy of antiarrhythmic drugs (AADs) in recurrent ventricular fibrillation (VF) associated with inferolateral early repolarization pattern on the electrocardiogram.

cordarone heart medication 2016-07-04

Amiodarone therapy, especially chronic, can result in difficult ventricular buy cordarone fibrillation (VF) inductions during implantable cardioverter defibrillator (ICD) testing. The efficacy of various VF induction methods on patients treated with amiodarone has not been well described. This prospective analysis evaluated the impact of direct current (DC) fibber, burst fibber, and synchronized T-wave shock VF induction methods.

cordarone max dose 2017-09-06

Advances in primary and secondary prevention of sudden death have led to a wide array of potentially beneficial therapies. Identification of patients most likely to benefit would be of use when considering costly interventions such as buy cordarone an implantable defibrillator. We sought to determine the effect of advancing age on the mode of death in the Amiodarone Trialists Metanalysis.

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Atrial fibrillation is a frequently occurring arrhythmia after buy cordarone thoracic operations. Preventive strategies for this complication have been extensively evaluated after cardiac operations.

cordarone heart medicine 2017-08-29

Variations in the serum concentration of interleukin-6 (IL-6) have been reported concomitantly with thyroid dysfunction: increased serum IL-6 levels have been found in patients with thyroidal destructive processes, such as subacute thyroiditis, some forms of amiodarone-induced thyrotoxicosis, or after percutaneous ethanol injection into "hot" thyroid nodules, as a result of the cytokine release from the damaged thyrocyte. In addition, recent in vitro evidence suggests that IL-6 might account, at least in part, for changes of thyroid economy found in nonthyroidal illness (NTI). In this cross-sectional study we addressed this problem by measuring serum IL-6 levels in 71 patients with NTI, due to neoplasia (n = 25), chronic liver disease (n = 9), chronic renal failure (n = 28), or other chronic nonthyroidal disorders (n = 9). These patients had reduced mean serum total T3 (TT3) and free T3 (FT3) concentrations, normal total and free T4 levels, normal TSH values, and increased serum reverse T3 (rT3) concentration (with the exception of chronic renal failure patients, who had normal rT3 levels). Serum IL-6 concentration was increased above normal (i.e. > 100 fmol/L) in almost all NTI patients, especially in those with low T3 values (median value: 258 fmol/L, range 73-3210, vs 152 fmol/L, range < 12.5-460, in patients with normal TT3 values, p < 0.001). Serum IL-6 values in NTI patients were negatively correlated with serum FT3 values (r = buy cordarone 0.56, p < 0.001), and positively correlated with serum rT3 values (r = 0.78, p < 0.001).(ABSTRACT TRUNCATED AT 250 WORDS)

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EURIDIS and ADONIS were double-blind, multinational, parallel-group trials buy cordarone comparing the efficacy and safety of dronedarone with placebo over 12 months. This retrospective subanalysis of EURIDIS/ADONIS compared the effects of dronedarone in patients discontinuing amiodarone within 2 days before randomization ("rapid switch") with results in patients who had received no amiodarone during the 2 months preceding randomization.

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Use of ICD or amiodarone in patients with past myocardial infarction and severely depressed buy cordarone left ventricular function may provide substantial clinical benefit at an acceptable cost. These results highlight the importance of clinical trials of ICDs in patients with low ejection fractions who have had myocardial infarction.

cordarone reviews 2017-03-17

In recent years several trials demonstrated the efficacy of implantable cardioverter-defibrillator (ICD) therapy for sudden cardiac death prevention and total mortality reduction in particular high-risk groups of patients. The aim of this review was to report the main epidemiological data buy cordarone and the most important clinical characteristics of patients enrolled in the Italian ICD Registry in the years 2001-2003.

cordarone tablets 200mg 2015-02-20

Dronedarone, a benzofurane derivative without iodine substituents, shares the electrophysiologic properties of amiodarone. This study was designed to determine the most appropriate dose of dronedarone for prevention of buy cordarone atrial fibrillation (AF) after cardioversion.

cordarone tablet 2017-09-24

Forty patients with atrial fibrillation (AF), 23 patients with ventricular extrasystoles (VES), and 11 patients with various arrhythmias (VA) were treated with amiodarone (0.2-0.6 g/day). Suppression of arrhythmia was 67.5% in AF, 78.2% in VES, and 81.8% in others with VA. Median age of converted patients was higher than that of nonconverted. The duration of AF before treatment was inversely related to drug efficacy. Average time needed for conversion was 6-8 days of treatment. Plasma amiodarone concentration at the day of conversion Zithromax Dosing Chart did not differ from that of nonconverted patients. Amiodarone concentration levels off after the 8th day of treatment, whereas that of the metabolite increases with time of treatment. Biologic half-life of plasma amiodarone after discontinuation of treatment varied, but was higher than 4 days. The percent of decline of the metabolite concentration was lower than that of the parent drug.

cordarone dose 2017-12-13

The sputtering yield of cholesterol films on silicon wafers is measured using Arn(+) and C60(+(+)) ions in popular energy (E) and cluster size (n) ranges. It is shown that the C60(+(+)) ions form a surface layer that stabilizes the film so that a well-behaved profile is obtained. On the other hand, the Arn(+) gas clusters leave the material very clean but, at room temperature, the layer readily restructures into molecular bilayers, so that, although a useful Exelon Reviews measure may be made of the sputtering yield, the profiles become much more complex. This restructuring does not occur at room temperature normally but results from the actions of the beams in the sputtering process for profiling in secondary ion mass spectrometry. Better profiles may be made by reducing the sample temperature to -100 °C. This is likely to be necessary for many lower molecular weight materials (below 1000 Da) to avoid the movement of molecules. Measurements for cholesterol films on 37 nm of amiodarone on silicon are even better behaved and show the same sputtering yields at room temperature as those films directly on silicon at -100 °C. The yields for both C60(+(+)) and Arn(+) fit the Universal Equation to a standard deviation of 11%.

cordarone overdose 2015-01-29

One hundred and eighty-five patients underwent transthoracic cardioversion (CV) for AF. AF recurred within 10 min in 20 patients (10.8%). These patients were randomized to Diflucan One Cost verapamil (seven patients), or amiodarone (13 patients). After administration of verapamil and repeat CV, five patients (71%) experienced IRAF, compared with seven patients (54%) receiving amiodarone (P = 0.4). Including the results after crossover, IRAF occurred in 8/10 patients (80%) who received verapamil, compared with 7/15 patients (47%) who received amiodarone (P = 0.1). The combination of these agents prevented IRAF in 10/20 patients (50%). After a follow-up of 319+/-189 days, 42% of the IRAF patients treated with verapamil and/or amiodarone remained in sinus rhythm, which did not differ from patients without IRAF (53%, P = 0.7).

cordarone generic name 2017-07-05

The antiarrhythmic drug amiodarone has fungicidal activity against a broad range of fungi. In Saccharomyces cerevisiae, it elicits an immediate influx of Ca(2+) followed by mitochondrial fragmentation and eventual cell death. To dissect the mechanism of its toxicity, we assessed the transcriptional response of S. cerevisiae to amiodarone by DNA microarray. Consistent with the drug-induced calcium burst, more than half of the differentially transcribed genes were induced by high levels of CaCl(2). Amiodarone also caused rapid nuclear accumulation of the calcineurin-regulated Crz1. The majority of genes induced by amiodarone within 10 min were involved in utilization of alternative carbon and nitrogen sources and in mobilizing energy reserves. The similarity to nutrient starvation responses seen in stationary phase cells, rapamycin treatment, and late stages of shift to diauxic conditions and nitrogen depletion suggests that amiodarone may interfere with nutrient sensing and regulatory networks. Transcription of a set of nutrient-responsive genes was affected Serevent Diskus Cost by amiodarone but not CaCl(2), indicating that activation of the starvation response was independent of Ca(2+). Genes down-regulated by amiodarone were involved in all stages of cell cycle control. A moderate dose of amiodarone temporarily delayed cell cycle progression at G(1), S, and G(2)/M phases, with the Swe1-mediated delay in G(2)/M phase being most prominent in a calcineurin-dependent manner. Overall, the transcriptional responses to amiodarone revealed by this study were found to be distinct from other classes of antifungals, including the azole drugs, pointing toward a novel target pathway in combating fungal pathogenesis.

cordarone medication guide 2017-12-17

The clinical analysis of the rhythmilene efficacy was performed in 247 patients receiving the drug for various arrhythmias. Due to its anticholinergic properties rhythmilene somewhat increased the sinus rhythm and improved atrioventricular conduction. These properties of the drug often caused urination retention, largely in males over 55 years. The drug Symmetrel Drug Interactions was highly active in ventricular paroxysmal tachycardia and extrasystole. The scheme of an interrupted administration of rhythmilene and cordaron for preventing attacks of atrial fibrillation and flutter was worked out. The necessity of the systematic control of the duration of the Q-T interval is emphasized.

cordarone medication 2015-09-10

Nine HCM related deaths occurred: 8 were the consequence of congestive heart failure, but only 1 was sudden and unexpected. Three groups of patients were segregated based on their NSVT profile: group 1 (n = 39), multiple (> or = 2 runs) and repetitive bursts (on > or = 2 Holters) of NSVT, or prolonged runs of ventricular tachycardia, included 4 deaths due to heart failure; group 2 (n = 38), isolated infrequent Cardura Drug Classification bursts of NSVT, included 1 sudden death; group 3 (n = 90), without NSVT, included 4 heart failure deaths. Kaplan-Meier survival analysis showed no significant differences in survival between the three groups throughout follow up.

cordarone mg 2017-05-07

Serum levels of amiodarone (A) and desethylamiodarone (D) were determined by HPLC in 34 Nolvadex 10mg Tab adults receiving loading (2 g) or maintenance doses (200 mg daily) of amiodarone. Serum levels of A after i.v. loading doses were much higher (1.35 micrograms/ml) than after equivalent oral doses (0.51 microgram/ml), suggesting low bioavailability. During maintenance therapy, very low levels of A were measured during the first 3 months of treatment (0.31 microgram/ml), after which they tended to rise (0.53 microgram/ml), as did the ratio of D/A. Among 4 children under maintenance therapy, one had high serum levels of A (1.50 micrograms/ml) and D (2.50 micrograms/ml) and showed nervous and cutaneous signs of toxicity.

cordarone tab uses 2015-08-12

The study aim was Tofranil 25mg Tab to examine results after stentless mitral valve (SMV) replacement (Quattro) and restitution of physiological cardiac rhythm by intraoperative left atrial ablation therapy.

cordarone 200 mg 2016-04-27

Eleven critically ill patients with life-threatening cardiac arrhythmias refractory to currently approved antiarrhythmic drugs were treated with intravenous amiodarone. Two patients had acute myocarditis, five had acute myocardial infarction, two had left ventricular failure secondary to ischemic heart disease, one had Wolff-Parkinson-White syndrome, and one manifested postoperative atrial fibrillation. Eight of the patients had severe cardiac failure and five had hypotension requiring intravenous dopamine. Five patients were treated for recurrent ventricular fibrillation, two for recurrent ventricular tachycardia, and four for recurrent atrial arrhythmias. Six patients had repeated cardioversions. The arrhythmias had lasted a mean of 88.3 hours resistant to a mean of 2.7 different intravenous Flomax Prostatitis Reviews antiarrhythmic drugs. The ventricular arrhythmias did not recur after commencing intravenous amiodarone, but some minor atrial arrhythmias occurred for 24 hours. One patient died of intractable left ventricular failure, chronic obstructive lung disease, and respiratory arrest during treatment. The dose of amiodarone was 150 mg over 5 minutes, followed by 600 mg/24 hr for 3 to 4 days; one patient on total parenteral nutrition required intravenous amiodarone for 20 days. Hypotension, cardiac failure, and bradyarrhythmias were not induced by this treatment. Intravenous amiodarone can be used safely in critically ill patients with impaired left ventricular function to control life-threatening refractory cardiac arrhythmias.

cordarone 5 mg 2016-09-18

We report the successful management of recurrent ventricular tachycardias in a newborn suffering Aciphex Generic Alternative from an intracardiac tumor. Amiodarone was the only agent able to control the tachycardias and did so as long as an individually titrated plasma concentration above 0.8 mu mol/L was maintained. Because no therapeutic plasma concentration has been defined in children and no kinetic studies are available in this population, we optimized the dosing regimen based on a computer simulation, taking into account the pharmacokinetic parameters of the patient and the individual concentration-effect relation.