Bundle Branch Block

Bundle branch block causes delay or block in the electrical pathway, through which impulses travel and make the heart beat. It can be caused due to heart attacks, cardiomyopathy, myocarditis, and hypertension. Mostly it does not cause any symptom, and sometimes it results in fainting.

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What could be the reason for the appearance of recurrent RBBB in the ECG reports of my malaria-infected father?

Query: Hi doctor, My father is 71 years old and recently got malaria (vivax), due to which his platelet counts dipped to 44000 mcL. In addition to blood tests, the doctor did an ECG as a routine procedure and found RBBB. The doctors said RBBB was not there in his ECG 10 years ago. During malarial shivers,...  Read Full »


Dr. Vivek Maroti Celerio Mandurke

Answer: Hi, Welcome to icliniq.com Thank you for consulting with us on icliniq.com. The right and left bundles are conducting structures of an electrical signal. But with aging and due to other reasons, it does not transmit an electrical signal. So it leads to the right bundle branch block, so the right ...  Read Full »

What exactly is a right bundle branch block?

Query: Hi doctor, My ECG report says that I have a right bundle branch block. What is it? Does it require attention?  Read Full »


Dr. Shoaib Javeed Khan

Answer: Hello, Welcome to icliniq.com. The heart works on electrical signals/impulses that are sent through a pathway. This finally reaches the side/part of the heart that produces the heartbeat. This pathway is complicated. And when there is any abnormality along this pathway, it can result in a conditio...  Read Full »

Do I need to consult a cardiologist in-person to evaluate my right bundle branch block?

Query: Hello doctor, I am a 45-year-old male. My BMI is 29. I have been diagnosed with an incomplete right bundle branch block QRS duration of 97 milliseconds. I do not have high blood pressure, and I exercise daily. My doctor said no further action was needed. Do I need a cardiologist appointment for fur...  Read Full »


Dr. Muhammad Zohaib Siddiq

Answer: Hello, Welcome to icliniq.com. Is there any family history of a cardiac issue or sudden cardiac death? Did you ever have syncope? Kindly attach your ECG (electrocardiogram) report to help you better. Regards.  Read Full »

What does abnormal repolarization in an ECG report mean?

Query: Hi doctor, I am an 80-year-old female with some history of slight hypertension but without any other significant health issues. I am not on any medication at all. I usually measure my blood pressure and pulse once or twice a day to monitor it. Historically, my blood pressure has been in a band of 1...  Read Full »


Dr. Muhammad Zohaib Siddiq

Answer: Hello, Welcome to icliniq.com. Thanks for the query. Your 12 lead ECG shows the right bundle branch block and normal heart rate. The rhythm strip shows intermittent 2nd degree AV block. If you are not taking any rate slowing medicine, then this block can be due to an age-related degenerative proc...  Read Full »

What is the cause for the atrioventricular block and right bundle branch block?

Query: Hello doctor, I have an abnormal ECG that shows the first-degree atrioventricular block and right bundle branch block. What could be the problem that is causing this?  Read Full »


Dr. Isaac Gana

Answer: Hello, Welcome to icliniq.com. I have seen the report (attachment removed to protect patient identity). I understand your concern. Please do not worry you will be fine. Both AV (atrioventricular) block and right bundle branch block are normal changes. We see amongst the healthy population. Some...  Read Full »

Does my mother's ECG show any heart problem?

Query: Hi doctor, My mother is under treatment for hypothyroidism, hypertension and osteoarthritis of knee joints, which is stage 2. I have attached her current medication list and ECG report. I request you to kindly have a look at the ECG and advice whether there is any indication of heart issues. Althoug...  Read Full »


Dr. Anshul Varshney

Answer: Hi, Welcome to icliniq.com. We are here to help you. I have seen the attached report (attachment removed to protect patient identity). The attached electrocardiogram - ECG seems normal to me. However, there is a slight left axis deviation, making your doctor to comment on LBBB (left bundle branch bl...  Read Full »

My doctor suggested 2D echo and TMT after reviewing my son's ECG. Is there any problem?

Query: Hello doctor, My 18-year-old son got an ECG and blood tests last month as a requirement for medical screening. He jogs every night for 30 minutes. He looks healthy. We consulted our cardiologist early this month and he requested for 2D Echo and treadmill stress test. Unfortunately, we were schedul...  Read Full »


Dr. Vivek Pillai

Answer: Hi, Welcome to icliniq.com. Could you upload his ECG (electrocardiogram) if it has been taken and also his echo and treadmill results?  Read Full »

What is the relevant test for left bundle branch block?

Query: Hello doctor, I was diagnosed with a left branch bundle block a few years back. I have been under the care of a cardiologist to make sure my heart is fine since then. I have done stress echos yearly or every two years since and have been told my heart is otherwise fine. I just had to switch the oth...  Read Full »


Dr. Sagar Ramesh Makode

Answer: Hello, Welcome to icliniq.com Treadmill test is not very informative in case of lbbb patient, however, stress echo either exercise or nuclear is valid. Stress thallium is the best test to be done in you. I guess you did not have any symptoms like chest pain or heaviness during stress test and if s...  Read Full »

What does right bundle branch block mean?

Query: Hello doctor, I would like to send you my daughter's ECG for evaluation. This was taken at the ER. I think she had heartburn. We are now concerned about the abnormal report.  Read Full »


Dr. Rishu

Answer: Hi, Welcome to icliniq.com. I have seen the ECG of your daughter. (attachment removed to protect patient identity). She has a condition called right bundle branch block. A right bundle branch block (RBBB) is a heart block in the electrical conduction system. Our heart is divided into four chambe...  Read Full »

Why is there repeated episodes of dizziness and chest pain in partial right bundle block?

Query: Hello doctor, My husband went to the hospital before four days because he felt dizziness and chest pain. They found no troponin and told us his EKG was fine. His bp was 105/70 mmHg in the hospital. The next day we went to a cardiologist and found partial right bundle block and he ordered more test...  Read Full »


Dr. Isaac Gana

Answer: Hello, Welcome to icliniq.com. Thanks for your detailed explanation. I understand your worries, but there is nothing much to worry about. It is common to have an event of fainting and dizziness, I see often amongst my patients with RBBB (right bundle branch block). RBBB is due to a slow heart rat...  Read Full »

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