overview
Sick sinus syndrome is the inability of the natural pacemaker (sinus node) to generate a heart rate that matches the body’s needs. It causes irregular heart rhythms (arrhythmias). Sick sinus syndrome is also known as sinus node dysfunction or sinus node disease.Sick sinus syndrome Treatment Hyderabad
- The sinus node is an area of specialized cells in the upper right ventricle of the heart. This zone controls your heart rate. Usually the sinus node creates a constant rhythm of electrical impulses. The pace changes depending on your activity, emotions, calm, and other factors.
- In sick sinus syndrome, electrical signals are abnormally stimulated. Your heartbeat may be too fast, too slow, interrupted by long pauses – or an alternating combination of these rhythm problems. Sick sinus syndrome is relatively rare, but the risk of developing it increases with age.
- Many people with sick sinus syndrome ultimately need a pacemaker to keep their heart rhythm stable.
symptom
Most people with sick sinus syndrome have few or no symptoms. Symptoms can be mild or come and go, making them difficult to spot at first.Sick sinus syndrome Treatment Hyderabad
The signs and symptoms of sick sinus syndrome can include:
- Tired
- Dizziness or lightheadedness
- Passed out or almost passed out
- shortness of breath
- Chest pain or discomfort
- confusion
- Heart rate slower than normal (bradycardia)
- A feeling of fast, pounding heartbeat (palpitations)
The reasons
Normal heartbeat
Normal HeartbeatOpen popup dialog
Your heart is made up of four chambers – two upper (atria) and two lower (ventricles). Your heart’s rhythm is usually controlled by the sinus node, an area of specialized cells in the upper right chamber of the heart (atrium).
Sinus bradycardia. The sinus node generates an electrical charge more slowly than normal.
Sinus arrest. The sinus node signals stop and cause skipped beats.
Sinoatrial outlet block. Signals to the upper chambers of the heart are slowed down or blocked, causing pauses or skipping beats.
Chronotropic incompetence. The heart rate is normal at rest, but does not increase with physical activity.
Bradycardia-Tachycardia Syndrome. The heart rate alternates between unusually slow and fast rhythms, usually with a long pause (asystole) between heartbeats.
Risk factors
Sick sinus syndrome can occur at any age, but is more common in people aged 70 and over. Common risk factors for heart disease can increase your risk of sick sinus syndrome:Sick sinus syndrome Treatment Hyderabad
- Arterial hypertension
- High cholesterol
- Obesity
- Sedentary lifestyle