Can rbbb with lpfb cause sudden death - #9363

I completely understand why you’re feeling anxious after seeing these terms on your ECG, especially when doctors don’t explain things clearly. Since both your general physician and cardiologist have reassured you, and your ECHO is normal except for mitral valve elongation, let me break it down for you. 1. What Does RBBB with LPFB Mean? RBBB (Right Bundle Branch Block) means that the electrical signal in the right side of your heart is slightly delayed. In young, healthy individuals with a normal heart structure, this is usually not dangerous. LPFB (Left Posterior Fascicular Block) means that a small part of the left ventricle’s conduction system is blocked. On its own, it is rarely serious unless there is underlying heart disease, which your ECHO has ruled out. 2. Why Did It Happen? In many people, RBBB and LPFB can be normal variants due to slight anatomical differences. Sometimes, they appear due to minor changes in the heart’s electrical system, past viral infections, or mild fibrosis. However, since your ECHO is normal, there is no immediate concern. 3. Is There a Risk of Sudden Cardiac Death (SCD)? There is no major risk in your case because your heart structure is normal, and you do not have symptoms like fainting, severe arrhythmia, or chest pain. If RBBB with LPFB were due to a serious condition like ischemic heart disease or cardiomyopathy, it would have shown up in your ECHO, which is not the case here. 4. Why Are You Experiencing Palpitations & High Heart Rate? Anxiety and overthinking can cause increased heart rate and palpitations. Mitral valve elongation may sometimes contribute to mild BP fluctuations and heart awareness, but it is not dangerous. Some people naturally have a higher resting heart rate, especially if they are anxious or have lower fitness levels. 5. What Can You Do? Regular exercise, staying hydrated, reducing caffeine, and improving sleep quality can help manage palpitations. Occasional BP readings of 134/90 are not alarming, but if they remain high, reducing salt intake and stress management can help. Since your condition is not serious, there is no need for excessive cardiac testing unless new symptoms develop. 6. When Should You Worry? If you experience fainting, unexplained chest pain, sudden heart rate spikes above 150 without reason, or severe breathlessness, you should get re-evaluated by a cardiologist. However, at this point, there is nothing to indicate a life-threatening condition. Your reports and symptoms do not suggest anything dangerous, so try not to stress too much. It’s good that you got checked by specialists, and they have reassured you. Focus on staying active and managing stress, and you should be just fine.