Sick sinus syndrome
Sick sinus syndrome (SSS), also known as sinus node dysfunction, is a group of heart rhythm disorders (Arrhythmia) where the sinus node — the heart's primary natural pacemaker — doesn't work properly. The sinus node is an area of specialized cells in the upper right chamber of the heart that controls the rhythm of your heart.
Symptoms[edit | edit source]
Symptoms of sick sinus syndrome may often be subtle or confusing, as they can vary from person to person. They may include:
- Fatigue
- Dizziness
- Fainting or near fainting
- Shortness of breath
- Chest pains
- Rapid heartbeat (Tachycardia)
- Slow heartbeat (Bradycardia)
Causes[edit | edit source]
Sick sinus syndrome is usually a result of age-related wear and tear to the heart muscle, particularly the sinus node. Other causes may include:
- Scar tissue from past heart surgery
- Certain medications, such as calcium channel blockers or beta blockers
- Underlying health conditions, such as thyroid disease
Diagnosis[edit | edit source]
Diagnosis of sick sinus syndrome may be challenging because the symptoms can be hard to pinpoint. A doctor may use several tests to diagnose the condition, including:
- Electrocardiogram (ECG)
- Holter monitor
- Event recorder
- Electrophysiology study
Treatment[edit | edit source]
Treatment for sick sinus syndrome focuses on eliminating or reducing unpleasant symptoms. This may involve:
- Changing medications that may be contributing to the syndrome
- Prescribing medication to regulate the heartbeat
- Implanting a pacemaker
Prognosis[edit | edit source]
With appropriate treatment, individuals with sick sinus syndrome can lead a normal life. However, they may need to have regular check-ups to monitor their condition.
See also[edit | edit source]
Cardiovascular disease A-Z
Most common cardiac diseases
- Cardiac arrhythmia
- Cardiogenetic disorders
- Cardiomegaly
- Cardiomyopathy
- Cardiopulmonary resuscitation
- Chronic rheumatic heart diseases
- Congenital heart defects
- Heart neoplasia
- Ischemic heart diseases
- Pericardial disorders
- Syndromes affecting the heart
- Valvular heart disease
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
A[edit source]
- Accelerated idioventricular rhythm
- Acute decompensated heart failure
- Arteriosclerotic heart disease
- Athletic heart syndrome
- Atrial flutter
- Atrioventricular fistula
- Cardiovascular disease in Australia
- Autoimmune heart disease
B[edit source]
C[edit source]
- Ebb Cade
- Cardiac allograft vasculopathy
- Cardiac amyloidosis
- Cardiac asthma
- Cardiac tamponade
- Cardiogenic shock
- Cardiogeriatrics
- Cardiorenal syndrome
- Cardiotoxicity
- Carditis
- Coronary artery aneurysm
- Coronary artery anomaly
- Coronary artery disease
- Spontaneous coronary artery dissection
- Coronary artery ectasia
- Coronary occlusion
- Coronary steal
- Coronary thrombosis
- Coronary vasospasm
- Cœur en sabot
- Coxsackievirus-induced cardiomyopathy
D[edit source]
E[edit source]
H[edit source]
- Heart attack
- Heart failure
- Heart failure with preserved ejection fraction
- Heart to Heart (1949 film)
- High-output heart failure
- Hyperdynamic precordium
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
I[edit source]
- Idiopathic giant-cell myocarditis
- Interventricular dyssynchrony
- Intraventricular dyssynchrony
- Isolated atrial amyloidosis
K[edit source]
L[edit source]
M[edit source]
- Mydicar
- Myocardial bridge
- Myocardial disarray
- Myocardial rupture
- Myocardial scarring
- Myocardial stunning
- Myocarditis
N[edit source]
O[edit source]
P[edit source]
- Papillary fibroelastoma
- Pathophysiology of heart failure
- Postpericardiotomy syndrome
- Pulmonary vein stenosis
R[edit source]
S[edit source]
- Saturated fat and cardiovascular disease
- SCAR-Fc
- Shone's syndrome
- Strain pattern
- Subacute bacterial endocarditis
- Sudden cardiac death of athletes
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
T[edit source]
V[edit source]
W[edit source]
| Sick sinus syndrome Resources | |
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