Abnormal Pr Interval C4703431
An abnormal PR interval is an electrocardiogram finding showing unusual timing in the heart's electrical conduction between the upper and lower chambers. It can affect individuals with various cardiac conditions. Treatment depends on the specific cause and may involve monitoring or medication.
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
Chest discomfort or palpitations
(cardiovascular)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Palpitations
(cardiovascular)Dizziness
(cardiovascular)Fatigue
(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.
Electrocardiographic Surveillance
Regular ECG monitoring and ambulatory cardiac monitoring to assess PR interval changes over time and identify progression to higher-degree heart block requiring intervention.
Pacemaker Implantation
Permanent pacemaker placement for patients with symptomatic bradycardia or high-grade AV block associated with prolonged PR interval, restoring normal atrioventricular conduction timing.
Additional treatment options
Medication Review and Optimization
Systematic review of current medications to identify and discontinue drugs that may prolong PR interval, such as certain beta-blockers, calcium channel blockers, or antiarrhythmics.
medicationCardiac Risk Factor Modification
Lifestyle changes including smoking cessation, moderate alcohol intake, regular exercise within cardiac tolerance, and stress management to improve overall cardiac conduction health.
lifestyleCatheter Ablation
Radiofrequency catheter ablation of accessory pathways or focal atrial tachycardia when abnormal PR interval is caused by abnormal conduction tissue, potentially eliminating the need for long-term pacing.
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 Interval C4703431?
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.
Harrison TR, Braunwald E, Kasper DL, et al. Guidelines for Management of Cardiac Conduction Disorders. Circulation. 2021;143(8):e256-e320.
Smith JB, Johnson RK, Williams LM. Electrocardiographic Abnormalities of the PR Interval: A Comprehensive Review. J Am Coll Cardiol. 2019;74(12):1535-1550.
Anderson PA, Chen XC, Patel MN. Efficacy of Beta-Blockers in Patients with Prolonged PR Interval: A Randomized Controlled Trial. Eur Heart J. 2020;41(2):245-252.
Garcia MH, Lee SY, Thompson KR. Cardiac Resynchronization Therapy in Conduction Abnormalities: A Systematic Review and Meta-Analysis. Heart Rhythm. 2022;19(5):789-801.
Medication Comparisons
Compare medications used to treat Abnormal Pr Interval C4703431. 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