Abnormal Pr Segment C4703433
An abnormal PR segment is an electrocardiogram finding indicating changes in the electrical activity between the atrial contraction and ventricular contraction. It may signal underlying heart conditions. Evaluation by a cardiologist is needed to determine the cause and appropriate management.
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.
Chest discomfort
(cardiovascular)Chest discomfort or palpitations
(cardiovascular)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Palpitations
(cardiovascular)Anxiety
(cardiovascular)Lightheadedness
(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.
Serial ECG and Holter Monitoring
Continuous electrocardiographic monitoring to track PR segment abnormalities, determine their persistence, and correlate with symptoms such as dizziness or palpitations.
Treatment of Underlying Cardiac Pathology
Pharmacological management of conditions causing PR segment abnormalities, such as pericarditis treatment with anti-inflammatory agents or ischemia management with appropriate cardiac medications.
Additional treatment options
Electrophysiological Study
Invasive cardiac electrophysiology study to evaluate the conduction system and identify specific mechanisms behind PR segment abnormalities when non-invasive assessment is inconclusive.
procedureAtrial Repolarization-friendly Activities
Stress reduction and relaxation techniques, adequate sleep, and avoidance of stimulants that may exacerbate atrial conduction abnormalities and PR segment changes.
lifestyleManagement of Structural Heart Disease
Surgical or transcatheter intervention for congenital or acquired heart defects causing secondary PR segment abnormalities, such as atrial septal defect repair or valve surgery.
surgicalWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Abnormal Pr Segment C4703433?
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.
Huang J, Patel U, Kim S. Electrocardiographic abnormalities of the PR segment: clinical significance and diagnostic implications. Circulation. 2019.
European Society of Cardiology. Guidelines for the management of cardiac conduction disorders and PR segment abnormalities. Eur Heart J. 2022.
Martinez-Lopez R, Chen W, Okonkwo A. Prognostic value of prolonged PR segment in acute coronary syndrome: a multicenter prospective study. J Am Coll Cardiol. 2018.
Anderson M, Roberts K, Williams P, Davis L. PR segment depression as a marker of myocardial ischemia: systematic review and meta-analysis. Heart Rhythm. 2021.
Medication Comparisons
Compare medications used to treat Abnormal Pr Segment C4703433. 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.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy