A little battery-powered gadget called a pacemaker helps in the heart's regular heartbeat. Three components make up a conventional pacemaker: electrodes (sensors), wires (leads), and generator. These days, some pacemakers are wireless. In order to help regulate irregular heartbeats, it generates electrical impulses. It is inserted inside the skin via a little incision made in your chest, usually right below the collarbone but sometimes in the area of the stomach as well.


Single-chamber pacemaker

Pacemakers with a single lead are often implanted in the right ventricle, which is the lower right chamber of the heart.

Dual-chamber pacemaker

Two leads are used in dual-lead pacemakers: one in the right ventricle and one in the right atrium.

Biventricular pacemaker

Three leads are used by biventricular pacemakers, often known as cardiac resynchronization therapy, or CRT. They are located the right atrium, right ventricle, and left ventricle.


Your heart has its own electrical system, which tells your heart’s chambers when it’s their turn to squeeze. When your heart’s electrical system malfunctions, your heart’s chambers may squeeze in the wrong order or squeeze too weakly to provide enough blood to your body. Pacemakers use electrical impulses to correct these kinds of malfunctions.


Conditions that are treatable with a pacemaker include (but aren’t limited to)

  • Certain cardiac arrhythmias or irregularities in the heart's regular beating rhythm
  • Electrical system abnormalities in your heart (such as heart blockages)
  • Heart failure
  • Heart attack history


Finding out if you have health issues that can be resolved with a pacemaker starts with discussing your worries or symptoms with your healthcare professional. The following are a few symptoms you should discuss with your healthcare provider:

  • Chest pain (also known as angina)
  • Tachycardia (pronounced “tacky-cardia”): This is an unusually fast heartbeat (more than 100 beats per minute)
  • Bradycardia (pronounced braid-y-cardia): This is an unusually slow heartbeat (fewer than 60 beats per minute)
  • Irregular heartbeat (arrhythmia): A heartbeat that skips beats or adds in extra beats
  • Heart palpitations: This happens when you can feel your heartbeat in a way that’s unpleasant (it might feel like your heart is “flip-flopping” or pounding in your chest)
  • Shortness of breath, especially when you’re more active
  • Unexplained dizziness or lightheadedness, nausea or fainting
  • Unexplained confusion
  • Swelling in your ankles, legs and abdomen
  • Needing to urinate multiple times at night


Restoring Normal Heart Rate

When the heart's natural pacemaker isn't working properly, pacemakers help control heart rate by delivering electrical impulses. By ensuring that the heart beats at a regular and proper pace, this helps to avoid bradycardia (slow heart rate) symptoms as fatigue, dizziness, and fainting.

Improving Quality of Life

Pacemakers may significantly improve a person's quality of life by keeping their heart rate constant. After receiving a pacemaker, many people feel less fatigued, weak, and breathless, which makes it easier for them to go about their everyday lives and exercise.

Reducing Risk of Complications

Pacemakers can help reduce the chance of problems from cardiac rhythm issues, such as syncope, which is a fainting episode caused on by heart block or bradycardia. Pacemakers can reduce the risk of falls and accidents and assist prevent dangerous reductions in blood pressure by ensuring that the heart maintains an appropriate and constant rhythm.

Minimal Lifestyle Restrictions

After installation, people with pacemakers can usually continue their regular activities and lead active lives because they usually come with few lifestyle restrictions. Pacemaker users can engage in the majority of daily activities, such as exercise, travel, and leisure activities, with the right care and precautions.

Enhanced Sleep Quality

Some people with heart rhythm abnormalities may have irregular heartbeats or pauses in their heart rhythm during the night, which can cause disruptions to their sleep. Pacemakers can assist in controlling heart rate as you sleep, resulting in more peaceful and continuous sleep cycles.

Treating Arrhythmias

Additionally, some arrhythmias, such as sick sinus syndrome and particular types of heart block, can be treated using pacemakers. Pacemakers can assist synchronize the heart's contractions and restore normal heart rhythm by giving electrical impulses to the heart at the right times. This may reduce symptoms and enhance cardiac function overall.


Pacemaker Types

Different configurations of pacemakers are available to suit different heart problems. Dual-chamber pacemakers have leads in both chambers, whereas single-chamber pacemakers only have one lead (wire) in the ventricle or atrium. When a patient has heart failure, biventricular pacemakers are utilized to synchronize contractions in both ventricles.

Battery Longevity

The batteries in pacemakers have been designed to long life; usually, they last for several years before needing to be changed. Programming settings, battery size, and pacing demand are some of the variables that affect how long a battery lasts.

Small Size and Lightweight

Patients find that modern pacemakers are comfortable to wear because they are lightweight and tiny. Their tiny size makes minimally invasive implantation techniques possible and reduces discomfort during the recovery process.

Sensing Capability

Pacemakers have sensors that detect the heart's electrical signals to determine when pacing is needed. These sensors ensure that pacing is synchronized with the heart's natural rhythm and can adapt to changes in activity level or physiological conditions.

Smartphone Connectivity for Patients

Patients with wireless-enabled pacemakers can use smartphone apps to access information about their device, monitor heart rhythm trends, receive alerts and notifications, and communicate with their healthcare providers, empowering them to actively participate in their care.


Boston Scientific ESSENTIO MRI Pacemakers Model: L131

The Boston Scientific ESSENTIO MRI Pacemakers, including model L131, offer MRI compatibility, wireless connectivity for remote monitoring, automatic mode switching for different physiological states, rate-responsive pacing for activity adaptation, and built-in memory for diagnostic data storage. Patients can engage with their care through smartphone apps, and robust security measures ensure the confidentiality of transmitted data, enhancing patient safety and convenience.

Medtronic Advisa SR MRI SureScan Pacemaker

The Medtronic Advisa SR MRI SureScan Pacemaker is designed to provide pacing therapy while allowing patients access to MRI scans under specific conditions. Key features include MRI compatibility, wireless connectivity for remote monitoring, automatic mode switching for various heart rhythms, diagnostic data storage, and patient engagement tools such as smartphone apps. With robust security measures, patients benefit from enhanced safety, convenience, and privacy in their cardiac care.

St.Jude Medical External Pulse Generator single chamber ( model-3077)

The Model 3077 is a single-chamber external pulse generator designed for temporary heart stimulation in cases of rhythm disturbances and conduction defects. It offers mode choices, adjustable pulse amplitude and sensitivity parameters, and two modes of high-rate pacing for atrial tachycardia treatment. With up to 12 volts of output per channel, advanced circuitry, and standard 9 volt lithium or alkaline batteries, it offers efficiency and battery longevity. The device features separate blinking LEDs and an audible tone.


Pacemaker procedures tend to have few complications, which you can discuss with your healthcare provider. In general, the following complications are possible:

Allergy reactions

These could be brought on by a medication you take or an allergy to a component of the pacemaker itself.

Blood clots

To lower your chance of getting a blood clot, your doctor may recommend blood-thinning drugs.

Problems with the pacemaker or its leads

A pacemaker lead can sometimes get knocked out of place or come loose. To prevent this, your healthcare practitioner will advise you to reduce your activities for a period following your surgery.

Malfunctions brought on by external sources

You will receive advice from your healthcare practitioner about which machinery or devices to avoid in order preventing outside electrical interference from causing difficulties with your pacemaker. Fortunately, these circumstances are uncommon thanks to developments in pacemaker technology.


"Price for medical devices like pacemakers can vary depending on factors such as brand, features, and types. You get your budget pacemaker at hospital store.


Q. Why might I need a pacemaker?

Pacemakers are used to treat heart rhythm disorders such as bradycardia (slow heart rate), heart block, and certain types of arrhythmias.

Q. What is the lifespan of a pacemaker battery?

Pacemaker batteries typically last several years, depending on factors such as pacing demand, programming settings, and battery capacity. Most pacemakers require replacement every 5 to 10 years.

Q. Can I undergo MRI scans with a pacemaker?

Some pacemakers are designed to be MRI-compatible under specific conditions. It's important to consult with your healthcare provider and the device manufacturer to determine if your pacemaker is MRI-safe.

Q. Can I still use electronic devices with a pacemaker?

While most electronic devices are safe to use with a pacemaker, it's essential to avoid prolonged exposure to strong electromagnetic fields or devices that may interfere with the pacemaker's function. Consult your healthcare provider for specific guidance.

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