Sick Sinus Syndrome 4 C5561949
Sick sinus syndrome affects the heart's electrical system, causing irregular heartbeats. It mainly affects older adults and is managed with pacemakers and medications to regulate heart rhythm.
Key facts at a glance
- ICD-10
- I78.0
- ICD-11
- BA00.0
- Body system
- cardiovascular
- Severity
- moderate
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Syncope
Palpitations
Cerebral hypoperfusion symptoms
Bradycardia
(cardiovascular)Chest discomfort or palpitations
(cardiovascular)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Fatigue
(cardiovascular)Dizziness
(cardiovascular)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Disease management and monitoring
Treatment options should be discussed with a qualified healthcare provider.
Pacemaker implantation
Surgical placement of a permanent pacemaker to maintain adequate heart rate and prevent bradycardia-related complications. First-line definitive treatment for symptomatic patients.
Rate-supporting medications
Temporary use of medications like theophylline or temporary pacing while evaluating for permanent device needs. Used cautiously as bridge therapy or for drug-induced sinus node dysfunction.
Additional treatment options
Cardiac rhythm monitoring
ECG monitoring, Holter recordings, or event monitors to document sinus node dysfunction episodes and guide treatment decisions. Essential for confirming diagnosis before intervention.
monitoringActivity modifications and precautions
Avoidance of activities that could cause injury if syncope occurs. Includes graduated return to activity protocols and education on recognizing warning symptoms.
lifestylePsychological adjustment support
Counseling and education to help patients adjust to living with a cardiac device or managing symptoms. Addresses anxiety related to syncope and device management.
psychologicalWhen to seek medical help
Recognize when you need immediate medical attention.
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Frequently asked questions
Common questions about this topic.
What is Sick Sinus Syndrome 4 C5561949?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Benditt DG, Lurie KG, Fabian Wehrens XH. American Heart Association/American College of Cardiology guidelines for the management of sick sinus syndrome. Heart Rhythm Soc. 2022.
Adan V, Crown LA. Diagnosis and treatment of sick sinus syndrome. Am Fam Physician. 2021.
Kusumoto FM, Schoenfeld MH, Calkins H. Pacing versus medical therapy in symptomatic bradycardia: the SSS-IMPROVE randomized controlled trial. J Cardiovasc Electrophysiol. 2020.
Link MS, Estes NA 3rd, Wang PJ. Pacemaker implantation in sick sinus syndrome: meta-analysis of long-term outcomes. Circulation. 2019.
Medication Comparisons
Compare medications used to treat Sick Sinus Syndrome 4 C5561949. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy