Long Qt Syndrome

Long QT syndrome is a condition where there is a rapid, chaotic heartbeat. This heart rhythm abnormality is caused due to variation in heart electrical signals. The condition might be caused by genetic conditions, underlying medical conditions, medications, etc. The variations lead to fainting, lightheadedness, weakness, etc. Treatment is done with medications like beta-blockers, lifestyle changes, and devices to correct the heartbeat.

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All the answers published in this website are written by verified medical doctors, therapists and health experts. The Content has been moderated by iCliniq medical review team before publication. Post your medical clarifications on iCliniq by choosing the right specialty and get them answered. Your medical queries will be answered 24/7 by top doctors from iCliniq.

I have PVC after starting Methadone. Will beta blockers help?

Query: Hi doctor, I am a 35 year old male, and I am currently on Methadone for chronic pain. I currently have PVC, and my last EKG showed a long QT (over 500 ms). The doctor recommended that I take Magnesium and Potassium supplements as he believes that Methadone may be reducing my magnesium and potassium ...  Read Full »

Dr. Isaac Gana

Answer: Hello, Welcome to icliniq.com. I have gone through your explanation in detail, and I understand your worries. Long QT syndrome can predispose you to a fatal arrhythmia known as torsades de pointes. In your case, I will strongly advise you to commence treatment with a beta blocker. This is a ...  Read Full »

Is long QT syndrome triggered by stress or physical activity causing SOB, dizziness, confusion, and weakness?

Query: Hi doctor, I need a doctor’s note explaining how long QT syndrome can cause SOB, dizziness, confusion, and weakness and how it can be triggered by stressful situations or physical exertion.  Read Full »

Dr. Sagar Ramesh Makode

Answer: Hello, Welcome to icliniq.com. Long QT syndrome as such will not cause weakness or shortness of breath and day-to-day dizziness. It causes episodic symptoms only. Exercise or stress causes the release of adrenaline and other hormones which can precipitate arrhythmias. It causes ventricular tachyc...  Read Full »

What precautions should I take while lifting weights as I have a prolonged QTc interval on my ECG report?

Query: Hello doctor, I am 31 years old and quite fit. My weight is 67 kg, so I am not overweight. My problem is that I have been told that I have a borderline QTc prologation in my ECG. I consulted a cardiologist, but he said the problem was not serious. All my reports came normal. I have asked people, and...  Read Full »

Dr. Muhammad Zohaib Siddiq

Answer: Hello, Welcome to icliniq.com. Diagnosing long QT syndrome takes a lot more than ECG (electrocardiogram). It needs detailed personal and family history. Your ECG QT interval is borderline from the attached reports (attachments removed to protect the patient's identity). Currently, I suggest you av...  Read Full »

Could KCNQ1 mutation result in long QT syndrome?

Query: Hi doctor,I am trying to get answers for my questions for many years. I feel to have heart palpitations and dizzy spells for few days. I got fainted a couple of times without reason. No one has answered my question. I did a 23 and me test. It showed a KCNQ1 mutation and suggest long QT syndrome. Cou...  Read Full »

Dr. Muhammad Zohaib Siddiq

Answer: Hi, Welcome to icliniq.com. KCNQ1 gene mutation causes long QT Syndrome. It causes delayed repolarization of the heart resulting in delayed relaxation of heart muscles. This is an electrical abnormality of the heart and it can result in palpitations and dizziness or loss of consciousness. In Long ...  Read Full »

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