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When the Sinuses Stop Working Right: Sick Sinus Syndrome

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Sick Sinus Syndrome related image Photo: Getty Images

The sinus node is the body’s natural pacemaker. Located in the heart’s upper right chamber, the sinus node sends out electrical signals that keep the heart beating in perfect rhythm. Unfortunately, sometimes the electrical signals malfunction and the electrical impulses become irregular causing a particular type of arrhythmia known as sick sinus syndrome.

In simplest terms, an arrhythmia means that the heart is either beating too fast, known as tachycardia, too slow, referred to as bradycardia, or the irregular heart rhythm. Persons with sick sinus syndrome may experience one or all types of irregular heartbeats.

Sick Sinus Syndrome Symptoms
Most sick sinus syndrome symptoms occur as a result of reduced blood flow due to the irregular heartbeat. Sick sinus syndrome symptoms may vary but generally include the following: bradycardia or a slow pulse rate, fainting, dizziness, lightheadedness, fatigue, shortness of breath, chest pain, confusion, difficulty concentrating or remembering things, rapid heartbeat, and trouble sleeping or interrupted sleep.

Some people may not experience any symptoms while others may experience just a few. It’s also possible for sick sinus syndrome symptoms to be intermittent. Since it’s possible for conditions other than sick sinus syndrome to cause these symptoms, it’s important to see your doctor immediately if you experience sick sinus syndrome symptoms.

Sick Sinus Syndrome ECG
Sick sinus syndrome is generally detected through an electrocardiogram or ECG. An ECG is a test that measures the electrical impulses that travel through the heart. This test helps doctors to identify when the heart is beating irregularly, too fast, or two slow.

A standard ECG is not invasive. Electrodes which are able to sense the heart’s electrical impulses are attached to the chest. Physicians are then able to view the electrical activity.

Because sick sinus syndrome is an arrhythmia, it may come and go. Because of the intermittent nature of arrhythmias, a standard ECG may not detect sick sinus syndrome. Your doctor may order a special sick sinus syndrome ECG.

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We value and respect our HERWriters' experiences, but everyone is different. Many of our writers are speaking from personal experience, and what's worked for them may not work for you. Their articles are not a substitute for medical advice, although we hope you can gain knowledge from their insight.

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