Evidence-based, highly-specialized care
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recommendations, we are able to reopen many of the services we offer at
BCH. It is safe to come to BCH for your health care needs.
Please click here to see how we are working to keep you safe. We also now offer convenient
virtual visits at our primary and specialty clinics. Please watch our video below to
Atrial fibrillation (AFib) is an abnormal heart rhythm (arrhythmia) that
impacts 1 in 5 individuals during their lifetime and accounts for 15-20%
of strokes in the U.S. Fortunately, three out of four strokes caused by
AFib can be prevented. More than 50% of patients with AFib do not have
obvious symptoms. Because AFib is a progressive disease, early diagnosis
and careful management of the condition is crucial.
An appointment with the AFib Clinic at Boulder Heart—located in the
Anderson Medical Center—provides a centralized entry point into the only full-service cardiology
program in Boulder County, providing everything from diagnostic tests
to advanced treatments to
cardiopulmonary rehab. Ensuring the best outcomes and quality of life is our team’s number one goal.
Boulder Heart also offers one of Colorado’s most sophisticated facilities
for diagnosing and treating heartbeat irregularities. Our Electrophysiology
(EP) Lab is equipped with advanced technologies such as an all-digital
biplane fluorscopy system, Carto 3D mapping system and intra-cardiac ultrasound.
Radiofrequency (RF) ablation and cryo ablation are both available at Boulder
Heart as forms of arrhythmia treatment.
To learn more about AFib or to make an appointment, please call 303-443-AFIB
or email firstname.lastname@example.org. Boulder Heart is the only full-service
cardiology program in Boulder County.
The AFib Clinic at Boulder Heart’s highly experienced and extensive
- Electrophysiologists (cardiologists specializing in heart rhythm problems)
- General cardiologists
- Cardiothoracic surgeons
- Specially trained nurse practitioners, physician assistants and nurses
Clinic Services Include:
- Prompt and thorough evaluation
- Extensive education for patients detailing how the disease develops, reviewing
treatment options and promoting healthy lifestyle modifications and recommendations
with medication management
- Individualized, comprehensive care plans taking a patient from diagnosis
through minimally invasive treatment into a successful return to an active life
Atrial fibrillation, also known as AF or AFib, is an irregular heart rhythm
There are three types of atrial fibrillation, each affecting the heart’s
timing, or electrical system. The three types of AFib, usually classified
based on duration, are:
- Paroxysmal (lasts less than 7 days)
- Persistent (lasts more than 7 days or a cardioversion is needed)
- Permanent (here to stay)
AFib can be dangerous because it increases the risk of stroke by nearly
five-fold and makes a patient more prone to develop heart failure and
other heart-related complications.
Since patients with AFib may also have diagnoses including hypertension,
dyslipidemia, heart failure, coronary artery disease, obesity, diabetes
and sleep disorders, the AFib Clinic partners with highly qualified specialists
to optimize monitoring and provide the highest quality, holistic, patient-centered care.
More than 50% of patients with AFib do not have symptoms. Symptoms of atrial
fibrillation can include:
- Shortness of breath
- Chest discomfort
Our experts help restore your heart rhythm. Boulder Heart is committed
to providing patients access to cutting-edge treatments including:
Advanced catheter ablation techniques: Ablation is selective elimination of tissue that causes dysrhythmias.
Either radiofrequency (high frequency electrical energy) or cryo (freezing)
can be used for this purpose. This is achieved by catheters (thin tubes
with electrodes) that are inserted via the femoral veins in the groin
and threaded to the heart.
Cox-Maze IV and hybrid ablation: The "gold standard" for surgical AFib treatment. Through small
incisions and punctures in the chest, a surgeon uses radiofrequency or
freezing to create scar tissue in the upper chambers of the heart. The
scar tissue then interrupts the electrical signals causing AFib.
WATCHMAN device: The only FDA-approved implant proven to reduce stroke risk in people with
AFib that is not caused by a heart valve problem
Micra® leadless pacemaker: The world’s smallest pacemaker. This device offers certain advantages
over traditional pacemakers including no incision on the chest wall and
avoidance of leads in the venous system.
The following factors increase an individual's risk for developing AFib:
- Age is greater than 40 years
- High blood pressure
- Thyroid disease
- Lung disease
- Sleep disorders
- Alcohol use
- Valvular heart disease
- Congestive heart failure
At the initial visit, the AFib Clinic team will emphasize lifestyle considerations
to reduce the risk of recurrent AFib. This may also increase the success
rate of our interventions.
From left: Srinivas Iyengar, MD; Sam Aznaurov, MD; Sameer Oza, MD; Vitale
Battaglini, NP-C; and Bryan Mahan, DO
Sameer Oza, M.D.: Board-certified in cardiovascular diseases and cardiac electrophysiology
and one of the most experienced electrophysiologists in the Denver-Boulder area.
Sam Aznaurov, M.D.: Board-certified cardiologist and electrophysiologist, with fellowship
training in clinical cardiac electrophysiology.
Vitale Battaglini, N.P.: Cardiology nurse practitioner with a focus on electrophysiology, who provides
each patient with personalized options for managing serious and chronic
Bryan Mahan, D.O.: One of a handful of heart surgeons in Colorado specializing hybrid ablation
for difficult to treat AFib.
Srinivas Iyengar, M.D.:One of Colorado's most experienced specialists in WATCHMAN, an innovative
implant that reduces stroke risk in people with AFib that’s not
caused by a heart valve problem.
To schedule a consultation with experienced electrophysiologists Dr. Sameer
Oza or Dr. Sam Aznaurov, please call 303-443-AFIB or email email@example.com.
The AFib Clinic at Boulder Heart model is based on the recommendations
and criteria previously outlined by the American College of Cardiology
for designated AFib Centers of Excellence. This model is utilized by several
institutions across the U.S. and is promoted by Heart Rhythm Society to
support the best possible care for patients with AFib
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