The purpose of this research is to learn more about the normal care of patients with a new or pre-existing diagnosis of atrial fibrillation (AF). These abnormal and irregular heartbeats place patients at increased risk of developing clots in their bloodstream that could potentially lead to stroke. Normal care is designed to help prevent this from happening and to lessen or eliminate the symptoms patients may have. There are many different types of AF as well as numerous ways in which a variety of patients are treated. The investigators are interested in gathering more information to better keep track of patient treatment patterns (trends) that may differ from physician to physician, hospital to hospital, medication to medication, patient to patient and if necessary, procedure to procedure.

The objective of this research is to establish a contemporary and simple to construct AF management registry that expands progressively over the continuum of care for each individual patient. The registry will be used to determine the course and progression of AF management in preventing thrombo-embolic events using rhythm and rate control interventions.

Primary endpoints:

1. Atrial fibrillation natural history
2. Thrombo-embolic event
3. Death

Secondary endpoints:

1. Bleeding
2. Pro-arrhythmia
3. Patient adherence
4. Treatment complication

Inclusion Criteria:

1. Diagnosis of valvular or non valvular atrial fibrillation
2. ECG documented atrial fibrillation A. 12 lead B. Rhythm strip C. Event monitor D. Holter Monitor E. Implantable loop recorder

Exclusion Criteria:

1. Age below 18 years.
2. Clinical evidence that death within 6 months is possible
3. Inability to consent to the research or sign a consent form
4. Inability to follow up at the research clinic at least annually for continuity of AF care and management

All subjects with the diagnosis of atrial fibrillation can be enrolled into the study regardless of sex, age or medical history

We plan to publish the results or outcomes associated with this registry to major peer-reviewed journals, didactic or poster sessions at national/international medical conferences.

Intermittently over the next 10-15 years

Co-investigator who enrolls at least one patient