A BIV PPM (Biventricular Pacemaker)—also known as cardiac resynchronization therapy (CRT)—is an advanced type of pacemaker designed to improve how the heart’s lower chambers (ventricles) work together. It is used primarily in patients with heart failure and electrical conduction delays that cause the heart to beat out of sync.
By coordinating the timing of the right and left ventricles, a biventricular pacemaker helps the heart pump more efficiently, which can lead to improved symptoms, better exercise tolerance, and enhanced quality of life.
What Is a Biventricular Pacemaker?
A traditional pacemaker typically stimulates one or two chambers of the heart. In contrast, a biventricular pacemaker sends electrical signals to both ventricles simultaneously, helping them contract in a more synchronized manner.
The system includes:
- A pulse generator (battery and electronic circuitry)
- Three leads (wires):
- One placed in the right atrium (in many cases)
- One in the right ventricle
- One positioned on the left ventricle (via a vein on the heart’s surface)
This coordinated pacing improves the heart’s overall pumping function.
Why Is a BIV PPM Implanted?
Your cardiologist may recommend a biventricular pacemaker if you have:
- Heart failure with reduced pumping function (reduced ejection fraction)
- Electrical conduction abnormalities, such as bundle branch block
- Symptoms such as:
- Shortness of breath
- Fatigue
- Reduced exercise tolerance
- Persistent symptoms despite optimal medical therapy
In these cases, the ventricles may not contract at the same time, reducing the heart’s efficiency. CRT helps restore more normal timing.
How the Procedure Works
Biventricular pacemaker implantation is a minimally invasive procedure, similar to standard pacemaker placement, and usually takes 2 to 4 hours.
During the Procedure:
- You will be awake but given a sedative to help you relax
- The area below the collarbone is cleaned and numbed
- A small incision is made to create a pocket for the device
- Leads are guided through veins into the heart using imaging:
- One lead to the right atrium (if used)
- One to the right ventricle
- One to a vein on the surface of the left ventricle
- The leads are connected to the device
- The system is tested and programmed for optimal timing
- The device is placed under the skin and the incision is closed
Most patients tolerate the procedure well.
What to Expect Before and After
Before the Procedure:
- You may be asked to avoid eating or drinking for several hours
- Medications may be reviewed or adjusted
- Blood tests, EKG, and imaging may be performed
- Your physician will explain the procedure and answer questions
After the Procedure:
- You may stay in the hospital overnight for monitoring
- The incision site may be sore for a few days
- You will need to limit arm movement on the implant side temporarily
- Follow-up visits will be scheduled to optimize device settings
- Most patients gradually return to normal activities over a few weeks
Benefits of a Biventricular Pacemaker
BIV PPM therapy can provide significant benefits for eligible patients:
- Improves heart pumping efficiency
- Reduces symptoms of heart failure
- Enhances exercise capacity and daily functioning
- May reduce hospitalizations related to heart failure
- Improves overall quality of life
- Helps the heart beat in a more coordinated, effective pattern
Risks and Considerations
Biventricular pacemaker implantation is generally safe, but potential risks include:
- Infection at the implant site
- Bleeding or bruising
- Lead displacement or malfunction
- Damage to blood vessels or nearby structures
- Need for additional procedures to adjust or reposition leads
Your cardiologist will review your individual health status and discuss risks in detail.
Living with a BIV PPM
Most patients experience noticeable improvement in symptoms after recovery. Important considerations include:
- Regular device checks to monitor performance and battery life
- Following activity guidelines during the healing period
- Informing healthcare providers about your device
- Avoiding strong electromagnetic interference (rare in daily life)
The device battery typically lasts several years and can be replaced when needed.
Frequently Asked Questions
How is a biventricular pacemaker different from a standard pacemaker?
A BIV PPM coordinates both ventricles, while a standard pacemaker usually stimulates only one or two chambers without synchronizing both ventricles.
Will I feel the device working?
No, the electrical impulses are very small and not noticeable.
How long does the device last?
Battery life typically ranges from 5 to 10 years, depending on usage.
How soon will I feel better?
Many patients notice improvement in symptoms over weeks to months as the heart adapts to synchronized pacing.
Can I return to normal activities?
Yes, most patients return to normal routines after the initial recovery period.
Will this cure heart failure?
A biventricular pacemaker does not cure heart failure, but it can significantly improve symptoms and heart function when used alongside medical therapy.
When to Consider a BIV PPM
You may be a candidate for a biventricular pacemaker if you have:
- Heart failure with reduced ejection fraction
- Electrical conduction delays affecting heart coordination
- Persistent symptoms despite medication
- Evidence of ventricular dyssynchrony on testing
Proper evaluation by a cardiologist is essential to determine if this therapy is appropriate.
Schedule a Consultation
If you have heart failure symptoms such as fatigue, shortness of breath, or reduced activity tolerance, a biventricular pacemaker may help improve your heart’s efficiency and overall quality of life.
The team at Cedars Heart Clinic provides advanced cardiac device therapy with a focus on precision, safety, and long-term management. Contact our office to schedule a consultation and learn more about whether cardiac resynchronization therapy is right for you.
