Procedure Description:

Single Cavity or Double Cavity PPM:

The pulse generator and one cardiac chamber are connected by a single lead on this kind of pacemaker. Most of the time, the lead of a single-chamber pacemaker is connected to the lower chamber of your heart, or right ventricle, to regulate the rate of your heartbeat.

Disease Overview:

Bradycardia

Bradycardia is characterized by a heart rate of fewer than 60 beats per minute. While resting or sleeping, the heartbeat of some otherwise healthy patients may decrease to less than 60 beats per minute. This is normally asymptomatic and does not necessitate therapy.

Disease Signs and Symptoms:

A heartbeat that is slower than usual (bradycardia) can hinder the brain and other organs from receiving adequate oxygen, resulting in the following indications and symptoms:

1- Pain in the chest.

2- Confusion or memory issues are common.

3- Lightheadedness or dizziness.

4- During physical exertion, it is easy to become exhausted.

5- Fatigue.

6- Syncope (fainting) or near-fainting.

Disease Causes:

- Bradycardia can be caused by aging-related heart tissue deterioration.

- Heart disease or a heart attack can cause tissue damage to the heart.

- A congenital cardiac abnormality that is evident at birth (congenital heart defect)

- Heart tissue inflammation (myocarditis)

- A cardiac surgery problem.

- A thyroid gland that is underactive (hypothyroidism)

Disease Diagnosis:

A health care practitioner will generally do a physical exam and listen to your heart with a stethoscope to diagnose bradycardia. He or she may inquire about your symptoms and medical background. Tests to evaluate your heart rate and discover whether you have a cardiac condition that might cause bradycardia may be recommended by your doctor. Blood tests may be performed to rule out other causes of slow heartbeats, such as illness, hypothyroidism (underactive thyroid), or electrolyte imbalance.

Tests

The most common test for bradycardia is an electrocardiogram (ECG or EKG). The electrical activity of the heart is measured by an ECG. Sticky patches (electrodes) are applied to the chest, as well as the arms and legs in some cases. The electrodes are connected to a computer through wires, which shows the results. An electrocardiogram (ECG) can reveal if the heart is beating too slowly, too quickly, or not at all.

Your health care physician may prescribe a portable ECG equipment since an ECG can't identify bradycardia unless the slow heartbeat happens during the exam. The following are examples of portable ECG devices:

Holter monitor is a device that records heartbeats. This gadget, which may be carried in a pocket or worn on a belt or shoulder strap, records the heart's activity for up to 24 hours.

Recorder of events. This gadget is comparable to a Holter monitor, except it only records for a few minutes at a time at specific periods. It is normally worn for 30 days, which is longer than a Holter monitor. When you have symptoms, you usually press a button. When an abnormal cardiac beat is identified, certain devices begin recording automatically.

To further understand how bradycardia affects you, an ECG may be used with additional testing. These tests include the following:

Test using a tilted table. This test might assist your doctor figure out how your bradycardia is causing your fainting spells. The table is slanted as though you were standing up while lying flat on a special table. To assess if a change in posture induces fainting, a tilt test is performed.

Exercise stress test While riding a stationary bicycle or walking on a treadmill, an ECG can be used to monitor your heart's activity. If you have trouble exercising, a medicine that stimulates the heart in a similar way as exercise may be prescribed.

If your health care practitioner suspects that recurrent pauses in breathing during sleep (obstructive sleep apnea) are causing bradycardia, a sleep study may be performed.

Disease Treatment:

The severity of the symptoms and the reason of the slow heart rhythm determine the treatment for bradycardia. Treatment may not be essential if you don't have any symptoms. Treatment for bradycardia may involve lifestyle modifications, medication adjustments, or the implantation of a pacemaker. If the slower than usual heartbeat is caused by an underlying health problem, such as thyroid disease or sleep apnea, therapy for that illness may be able to remedy bradycardia.

Medications

Bradycardia can be caused by a variety of drugs, including those intended to treat other cardiac diseases. Always tell your doctor about all drugs you're taking, even ones you obtained without a prescription.

If a medicine you're taking is producing bradycardia, your doctor may suggest lowering the dose or switching medications.

Surgical or non-surgical techniques

When alternative therapies are ineffective and bradycardia symptoms are severe, a pacemaker is used to regulate the heart's rhythm. Pacemakers are only activated when they are required. The pacemaker gives electrical instructions to the heart to speed up the rhythm when it beats too slowly.

Implanting a pacemaker necessitates a surgical procedure. Using X-rays as a guide, one or more wires are put into a major vein under or near the collarbone and led to the heart. Each wire has one end attached to a device (pulse generator) inserted behind the skin beneath the collarbone, while the other end is attached to a device (pulse generator) implanted beneath the skin beneath the collarbone.

A leadless pacemaker is often smaller and requires less invasive surgery to implant.