Common "Long Qt Syndrome" queries answered by top doctors | iCliniq

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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Will beta blockers help PVC after Methadone intake?

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 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 an isolated slight elongation in QT intervals on one ECG, followed by normal QT intervals on previous and subsequent ECGs, a cause for concern?

Query: Hello doctor, I would really appreciate some advice on what to do. I am a 31-year old-female. About four months ago, I started experiencing bad anxiety and panic attacks. I went to a doctor for blood tests and ECG, just to rule out any health issues. In fact, I had two ECGs done three months ago. ...  Read Full »

Dr. Sagar Ramesh Makode

Answer: Hello, Welcome to I understand your concern. How much was QTC? Diagnosis of long QT is not a difficult one, so if he is saying it is within the normal limits, then it may be. Slight variations in the QTC may occur from time to time with changes in the heart rate. If both of your QTC...  Read Full »

Can stress or physical exertion trigger long QT syndrome?

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 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 tachyca...  Read Full »

I am experiencing random bouts of waking up with increased heart rate. Could this be due to long QT syndrome?

Query: Hello doctor,I have been having random bouts of waking up with a high heart rate. My heart rate was 167 bpm, which was sustained for 10 minutes and the same happened two other times. I have had a decent cardio workup, but curious if common tests would pick up LQTS 3. I have a low heart rate at rest ...  Read Full »

Dr. Yash Kathuria

Answer: Hello, Welcome to I read your query and understand your concern. Palpitations can be induced by various precipitating factors like anxiety, panic attacks, smoking, alcohol, caffeine, or underlying cardiac issues. So these factors need to be taken care of. Secondly, did any of your r...  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 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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