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Can rbbb with lpfb cause sudden death
Cardio Disorders
Question #9363
280 days ago
2,621

Can rbbb with lpfb cause sudden death - #9363

Himanshu panwar

I am a 23 year old and I recently got an ecg which says rbbb with lpfb and I got echo done my heart structure is fine except mitral valve elongation I want to know if there is a risk of sudden cardiac death involved I sometimes get BP of 134 over 90 generally my BP is 120 over 80 I sometimes get palpations and my heart rate is generally above 80 am concerned whether it is life threatening or not I have visited a general physician and a cardiologist both them said it's ok nothing to worry about but none explained what caused rbbb

Age: 23
Chronic illnesses: Rbbb lpfb
Heart
Ache
Palpitations
100 INR (~1.18 USD)
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Doctors’ responses

Right Bundle Branch Block (RBBB) with Left Posterior Fascicular Block (LPFB) can sound alarming, but in many young people with normal heart structure on echo and no other symptoms like fainting or chest pain, it often isn't life-threatening. This combination can be a type of bifascicular block, but if you don’t have underlying heart disease, it’s usually considered benign, especially since your echo is normal and only shows mitral valve elongation, which alone is often harmless. Your occasional high BP (134/90) and resting heart rate above 80 are within borderline ranges and can be influenced by stress, caffeine, dehydration, or anxiety. Since both the physician and cardiologist have cleared you and found no structural heart disease, the risk of sudden cardiac death is extremely low in your case. However, if your symptoms change — like you begin fainting, feel chest tightness, or your palpitations become more frequent — further evaluation like a Holter monitor or stress test might be helpful. It's great you're being proactive; maintaining a heart-healthy lifestyle, staying active, managing stress, and doing routine follow-ups are the best things you can do. Let me know if you’d like help interpreting your ECG further or building a daily routine to support heart health.

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