Complete Heart Block With Broad Qrs Complexes C4476543
A serious heart rhythm disorder where electrical signals cannot pass between the upper and lower heart chambers, with abnormal wide QRS patterns. Causes slow heart rate and symptoms like dizziness or fainting. Usually requires pacemaker implantation.
Key facts at a glance
- ICD-10
- I78.0
- ICD-11
- BA00.0
- Body system
- cardiovascular
- Severity
- severe
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Syncope
Dyspnea
Chest discomfort or palpitations
(cardiovascular)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Bradycardia
(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
Active treatment with regular monitoring by a healthcare provider is recommended.
Permanent Pacemaker Implantation
Surgical placement of a permanent pacemaker to maintain adequate heart rate and restore cardiac synchrony. This is the definitive treatment for symptomatic complete heart block with broad QRS complexes, which indicates ventricular conduction system disease.
Temporary Transvenous Pacing
Emergency placement of a temporary pacing wire via central venous access to provide immediate rate support while preparing for definitive permanent device implantation. Used in hemodynamically unstable patients.
Additional treatment options
Atropine Administration
Short-term pharmacologic agent to temporarily increase heart rate by blocking vagal tone. Provides temporary symptomatic relief but is not a long-term solution for complete heart block.
medicationInpatient Cardiac Monitoring
Continuous telemetry monitoring in hospital setting to detect life-threatening arrhythmias, assess pacemaker function post-implantation, and monitor for device complications.
monitoringActivity Modification and Cardiac Rehabilitation
Structured exercise program and activity guidelines tailored to pacemaker function. Patients learn to monitor heart rate limits and avoid activities that may interfere with device function.
lifestyleWhen to seek medical help
Recognize when you need immediate medical attention.
See a doctor within 24 hours
Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.
Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.
Frequently asked questions
Common questions about this topic.
What is Complete Heart Block With Broad Qrs Complexes C4476543?
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.
European Society of Cardiology. 2021 ESC Guidelines on cardiac pacing and resynchronization therapy. Eur Heart J. 2021.
Kusumoto FM, Schoenfeld MH, Barrett C, et al. 2018 ACC/AHA/HRS Guideline on the evaluation and management of patients with bradycardia and cardiac conduction delay. Heart Rhythm. 2019.
Brignole M, Auricchio A, Baron-Esquivias G, et al. 2013 ESC Guidelines on cardiac pacing and cardiac resynchronization therapy. Europace. 2013.
Zhang XH, Chen X, Cao GM, et al. Management of complete heart block with broad QRS complexes: a systematic review and meta-analysis. J Cardiovasc Electrophysiol. 2020.
Medication Comparisons
Compare medications used to treat Complete Heart Block With Broad Qrs Complexes C4476543. 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