Please select the eligibility criteria that correspond to the clinical trial below.
Title: EURopean Trial In Atrial Fibrillation or Flutter Patients Receiving Dronedarone for the maIntenance of Sinus Rhythm (EURIDIS)
Brief Summary: To assess the efficacy of dronedarone versus placebo for the maintenance of normal sinus rhythm after electrical, pharmacological or spontaneous conversion of atrial fibrillation/atrial flutter (AF/AFL).

To assess the efficacy of dronedarone versus placebo on AF/AFL-related symptoms.

To assess the efficacy of dronedarone versus placebo on ventricular rate control in case of AF/AFL recurrence.


Options:
A: Inclusion Criteria:

* Patients of either sex aged 21 years or more, in sinus rhythm for at least 1 hour at the time of randomization and with at least one ECG-documented AF/AFL episode in the last 3 months.

Exclusion Criteria:

* MAIN CRITERIA (non-exhaustive list, see protocol for details):

Women of childbearing potential without adequate birth control, Pregnant women, Breastfeeding women, Congestive heart failure NYHA class III or IV, Conditions which increase the risk of severe antiarrhythmic drug side effects, Severe associated conditions.
B: Inclusion Criteria:

1. Age 18-70 years
2. History of symptomatic paroxysmal AF lasting more than 6 months. Paroxysms of AF are intended as recurrent self-terminating episodes lasting less than 7 days and occurring more than 2 times every month.

Exclusion Criteria:

1. Pregnancy
2. NYHA functional class III or IV
3. Left atrial size \> 65 mm
4. Left ventricular (LV) ejection fraction \< 35%
5. Contraindication to anticoagulation with warfarin
6. History of myocardial infarction within six months of the procedure
7. Prior catheter or surgical ablation attempt for AF
8. Inability or unwillingness to provide written informed consent
9. Life expectancy less than 1 year
10. Significant comorbid conditions such as: cancer (not cured), end stage renal disease (creatinine clearance \< 20 mL/h), severe chronic obstructive lung disease, cirrhosis, etc)
11. Anticipated cardiac surgery for congenital, valvular, aortic or coronary heart disease.
12. Presence of left atrial thrombus.
13. Prior antiarrhythmic drug therapy with amiodarone, sotalol and flecainide at optimal doses (target 200 mg, 240 mg, 200 mg daily respectively
14. AF burden \< 2 episodes/month
15. WPW
16. Expected survival \< 1 year
17. Contraindications for antiarrhythmics therapy including flecainide, sotalol or amiodarone not listed above:

    * LV hypertrophy (LV mass index \> 125g/m2)
    * thyroid dysfunction (hyperthyroidism or uncontrolled hypothyroidism or thyroid cancer)
    * liver dysfunction (ALT or AST \>2x the reference values)
    * Interstitial lung disease with DLCO\<70% of predicted or severe asthma.
    * QT interval exceeding 400 msec
    * Symptomatic sinus node or atrioventricular node dysfunction unless a pacemaker had been implanted
    * Evidence of stress-induced myocardial ischemia
C: Inclusion Criteria:

* 18 years of age or older
* Paroxysmal atrial fibrillation for at least 6 months with at least 2 symptomatic episodes (patient history) during the previous month
* Atrial fibrillation (patient history or echocardiogram documented) resistant to at least one antiarrhythmic drug of Class I or III
* Documentation of at least one episode of atrial fibrillation on 12-lead echocardiogram or Holter Monitor

Exclusion Criteria:

* Contraindications to more than 2 antiarrhythmic drugs of different classes, or to oral anticoagulants
* History of any previous ablation for atrial fibrillation
* Intracardiac thrombus
* Atrial fibrillation due to reversible cause
* Pregnancy
* Contraindication to stopping oral anticoagulation (for example as a result of a mechanical cardiac valve)
D: Inclusion Criteria:

* Patients of either sex aged 21 years or more, in sinus rhythm for at least 1 hour at the time of randomisation and with at least one ECG-documented AF/AFL episode in the last 3 months.

Exclusion Criteria:

* MAIN CRITERIA (non-exhaustive list, see protocol for details):

Women of childbearing potential without adequate birth control, Pregnant women, Breastfeeding women, Congestive heart failure NYHA class III or IV, Conditions which increase the risk of severe antiarrhythmic drug side effects, Severe associated conditions.

Answer: A