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Right Bundle Branch Block

A conduction disturbance in which impulse transmission to the right ventricle is delayed or blocked.

Written by: Saygı Hospital Health Guide Editorial Board
Published:

This content is for general information; please consult your physician for diagnosis and treatment.

References (5)

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Kardiyoloji department. Book Appointment →

What is Right Bundle Branch Block?

Right bundle branch block (RBBB) is a conduction disturbance caused by delayed or absent impulse conduction in the right bundle branch of the His system, leading to late depolarization of the right ventricle. In complete RBBB the QRS duration exceeds 120 ms; incomplete RBBB shows QRS between 100 and 120 ms.

The ECG typically shows an rSR' pattern in V1–V2 and broad S waves in leads I and V6. RBBB may be present in healthy individuals but can also accompany acute pulmonary embolism, ischemia, myocarditis, cardiomyopathy and congenital heart disease.

Treatment is directed at the underlying disease. Isolated RBBB usually requires no specific treatment, but clinical assessment and follow-up are warranted when it is new onset or associated with left fascicular block.

Symptoms

Usually asymptomatic
Palpitations
Dizziness
Syncope (especially with bifascicular/trifascicular block)
Dyspnea
Symptoms of the underlying disease
Sometimes discovered incidentally on routine ECG

Risk Factors

Advanced age
Hypertension
Coronary artery disease
Pulmonary embolism
Cardiomyopathy
Congenital heart disease
After cardiac surgery

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • When new-onset RBBB is identified
  • Syncope or presyncope episodes
  • Accompanying chest pain and dyspnea
  • Suspected acute pulmonary embolism
  • Presence of bifascicular/trifascicular block

Treatment Methods

01
Isolated asymptomatic RBBB requires no treatment
02
Identify and treat the underlying cause
03
Urgent intervention for pulmonary embolism or ischemia
04
Electrophysiology study for bifascicular block with syncope
05
Permanent pacemaker implantation when indicated
06
Regular cardiology follow-up

Which Department to Visit?

You can visit our Kardiyoloji department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.