ECG stands for Electrocardiography, which is a non-invasive diagnostic test that records the electrical activity of the heart. This electrical activity, which is caused by electrical charges created by the heart as it beats, is picked up by the electrodes that are placed over the skin. It is useful to assess the heart rhythm, identify any heart disease, and for evaluation of cardiac efficiency.

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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 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 »

How long shall we wait for an angioplasty after a heart attack, and if the LVEF is 30%?

Query: Hello doctor, My 59-year-old mother had a heart attack a week ago. Her LVEF is 30% as per 2D echocardiogram. She has a myocardial infarction. Her sputum test is positive for pneumonia. Her HRCT showed a collapsed left lower lobe, with partial medial collapse. It has been more than 15 days since h...  Read Full »

Dr. Muhammad Zohaib Siddiq

Answer: Hello doctor, Welcome to Thanks for the query. Kindly share her ECG (electrocardiogram) report to help you better. 1) Is her condition an ST-segment elevation myocardial infarction or a non-ST-segment elevation myocardial infarction? 2) Did she had any previous cardiac issues? 3) ...  Read Full »

Can you still have ARVC despite normal scan reports?

Query: Hello doctor,I am feared of having ARVC after reading about it on the internet. This is a series of phobias that started from blocked arteries, SCD, Afib, and finally into ARVC. I have done all the tests relating to the heart, such as ECG, echocardiogram, MRI, and stress test. My ECG showed an abnor...  Read Full »

Dr. Muhammad Zohaib Siddiq

Answer: Hello, Welcome to Your ECG (electrocardiogram) is normal (attachments removed to protect the patient’s identity). Regarding MRI (magnetic resonance imaging) and echocardiography, the reports are not in english. So, I will translate it and will get back to you soon. Thanks.  Read Full »

Does reduced heart rate during sleep indicate the need for a pacemaker?

Query: Hello doctor, I am 29 years old male. My height is 5”11, and my weight is 246 lbs. I am a smoker. I am not an atheletic. I got a watch to record my sleep. It showed last night my heart rate while sleeping was around 48 BPM to 55 BPM, and it went low to 44 BPM at one point. I am very scared. I...  Read Full »

Dr. Muhammad Zohaib Siddiq

Answer: Hi, Welcome to Heart rate to go this down during sleep is very normal. Regarding skipped beats, if these occur daily, then have ECG (echocardiography) done when you feel such skipped beats or have Holter monitoring done. Regarding risk factors for cardiac disease, one is positive, and...  Read Full »

Will a chest X-ray show left ventricular hypertrophy?

Query: Hi doctor, I want to know whether a chest X-ray can show left ventricular hypertrophy (LVH).   Read Full »

Dr. Muhammad Zohaib Siddiq

Answer: Hi, Welcome to Chest X-ray cannot show left ventricular hypertrophy (LVH). If your left ventricle remains enlarged, it shows as an enlarged heart shadow on the chest X-ray. ECG (electrocardiogram) can show findings of LVH but echocardiography is the best way to diagnose LVH.   Read Full »

Can an ECG detect LVH?

Query: Hi doctor,I am a 37-year-old female. Three years ago, I had an ECG done, and it showed up LVH. So I had an echocardiogram, and there was no evidence of LVH. I had another ECG last week in the hospital, and it showed up LVH again, worse. And I am so scared. Can the echocardiogram change in three year...  Read Full »

Dr. Muhammad Zohaib Siddiq

Answer: Hi, Welcome to ECG (electrocardiogram) is not reliable for detecting LVH (left ventricular hypertrophy). An echocardiogram is the best test for it. ECG may show LVH patterns in thin, lean persons. If the echocardiogram is normal, then no need to worry. Do you have hypertension? What a...  Read Full »

Can I know whether sudden cardiac arrest occur as a genetic predisposition?

Query: Hi doctor,I am a 28-year-old woman. Three years back, my elder brother passed away at the age of 31. He got a sudden cardiac arrest while playing football. When we reached the hospital, he passed away at the gate. He suffered for an hour from sudden pain and died due to it. Three years later, my sec...  Read Full »

Dr. Muhammad Zohaib Siddiq

Answer: Hi, Welcome to Your first line of investigation is ECG (electrocardiogram) and echocardiography. An autopsy should be done for sudden death victims. Do ECG (electrocardiogram), echocardiography, and fasting lipid profile. If your resting ECG remains normal, then ECG can be done with p...  Read Full »

How long will a person have troubled breathing after testing COVID-positive?

Query: Hi doctor, My mother has a breathing issue, high CRP, and D-dimer. She was tested COVID-positive 20 days before. She also has a low SPO2 level. She is 61 years old and a sugar patient. She does not have any allergic reactions to medicines. She is comfortable eating and talking. Her fever has gone d...  Read Full »

Dr. Muhammad Zohaib Siddiq

Answer: Hi, Welcome to COVID-19 causes lung damage which can cause breathlessness. Please have a chest X-ray done and send me her X-ray. After recovery of cough and fever, shortness of breath may take some time to settle. But if oxygen saturation drops below 90%, this is concerning. Regarding...  Read Full »

Does left ventricular hypertrophy cause high blood pressure?

Query: Hello doctor,My ECG (electrocardiogram) and echocardiography result came out nine months ago. I was given a blood pressure method. Today, I had my ECG again, and it says NSSTTWC. I want to know what that means? X-rays are clear then and now.  Read Full »

Dr. Muhammad Zohaib Siddiq

Answer: Hello,Welcome to means non-specific ST and T wave changes. These findings are interpreted in the context of history. Please tell me what your symptoms are and why ECG was done. Do you have any comorbidities such as hypertension or diabetes mellitus?  Read Full »

Why am I having heart palpitations, shortness of breath, and fatigue for four weeks?

Query: Hi doctor, I am 33 years old. For the past four weeks, I have heart palpitations, shortness of breath, and fatigue. It becomes worse after eating foods with carbohydrates. After eating, my symptoms last for an hour. I can do exercise without any issue. These symptoms never happened to me before. ...  Read Full »

Dr. Muhammad Zohaib Siddiq

Answer: Hi, Welcome to Faster heart rate can occur due to fever. It can also occur due to vagal atrial fibrillation and it is uncommon to occur in young individuals. This is an irregular fast heartbeat that occurs in bouts after eating and during rest. Please mention in detail regarding t...  Read Full »

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