Sounds like a horrible diet, which could cause a lot of problems, including low potassium (and long QT), anxiety, low magnesium (and long QT), vitamin defiency, etc. You need at least 3000 mg of potassium daily, and preferrably 3.500-4.700 mg (guidelines vary between countries, in Norway it's 3.700).
I think your prolonged corrected QT interval was caused by 1) Mathematical overestimation from the Bazett formula due to a high heart rate, and 2) Low potassium.
Hi! I'm just trying to do some research for my friend ... She's been on Quetiapine (an atypical antipsychotic) for about 2yrs, but previous to this she was diagnosed with borderline hypothyroidism. Suddenly, she has fallen really ill and blood tests have confirmed minor hypothyroidism (T3 levels around 9)... but the symptoms look like hyper!
I'm in the Uk and currently taking Quetiapine, Depakote and Lamotrigine. The Quetiapine for me was prescribed for rage and agitation, I don't feel any anti depressant properties from it, but it has saved my life. Lamotrigine was prescribed 7 weeks ago and I feel a lot better, I am doing things that I didn't think I'd ever feel I could do again. Nobody has ever specified what type of Bp I have, I have symptoms from across the spectrum, I have mixed episodes.
Hi there. I have had tachycardia for a long time which is normally around 120 bpm but last night I took my pulse just before I went to bed and it was at 150 bpm. This was at resting. I had an ECG a while ago which was normal. Also I have lost a bit of weight recently and can now feel my pulse in my abdomen just below the ribcage. I am 29, am taking quetiapine as without I don't sleep at all and weigh around 90kg. Just wondering if I should do anything about this?
Hi - I have some questions about long QT syndrome. I've recently had 3 EKGs because of palpitations and a fast heartbeat. I've asked the doctor who did them about long QT and each time he said there was nothing showing I had it. My QT/QTc was 350/418 on the first one I believe, on the second 362/425 and on the third 358/440. Heartbeat was 86, 83 and 91 respectively. The last one is the one that got me worried, because apparently 440 is the limit for normal.
Thanks for your reply. If it changes anything, I have also found an earlier EKG with a ventricular rate of 96 and QT (uncorrected) 326. Shouldn't my uncorrected QT be lower, or does it stop decreasing with increased heart rate like this? Sorry for disturbing you with such questions, but my anxiety sometimes gets the best out of me...
Yes, a well known side effect of the majority of SSRI''s is that they can prolong the QT interval. This does not mean that they will and "prolonging" the QT interval is not the same thing as having a "prolonged QT interval".
my daughter had 2 ekgs and showed a QT interval of 468 with a heart rate of 68. Obviously this is a prolonged qt, but what are the odds that it is Long QT syndrome? If it isn't, what is it???? I can't find any answers. I do know that it is considered a borderline QT interval until it hits 470. If she doesn't get diagnosed with long qt syndrome (cardiology appointment is next week) Does it just mean that she has a long qt interval and nothing else?
Has any one reduced and successfully stopped taking quetiapine? were there any horrible withdrawal symptoms or return of symptoms? I am feeling scared I must say.
Long QT Syndrome is normally a lifelong condition. That being said, a prolonged QT interval can be caused by medication or electrolyte abnormalities, even in healthy individuals without Long QT Syndrome. Additionally, some individuals with Long QT Syndrome don't have a consistently prolonged QT interval. It's possible to have a occasional normal EKG, and still have Long QT Syndrome.
What do you mean by "EKG showed problems with QT intervals"? The reason I ask is that the QT interval has to be corrected using something like the RR interval to have real meaning. RR is just the time interval from beat to beat, and if you have bradycardia there might need to be more correction going on. On the other hand, some drugs affect the QT interval. If you do have a prolonged QT caused by drugs, I should think it should be reversible when you stop taking the drug.
My holter only shows pac 7 beats and other than that is fine. My qt avg was 383 and qtc avg was 398. My QT max was 467 and QTc max was 480 msec. My percentage of QTc greater than 450 ms was 0%. The other two ekg that I was done about 4 years ago show qt 372 qtc 421 and qt 360 qtc 428. My echo is fine.
My internal medicine doctor of 12 years wants me to see a cardiologist. But it is soooooo rare to diagnose Long QT on ECG. I have had an episode of documented Long QT on ECG when I was hypokalemic (low potassium).
After exhaustive research on internet, I found that the genetic blood test for Long QT Syndrome only identifies 70% of Long QT cases. So you have a 30% chance of getting a negative test and still have the syndrome. The test is $5,000 for one person.
I am a worrier and saw a different EP to confirm I have nothing to worry about and he said he definitely thinks I have a long qt. What? He said he doesn’t think I have long qt syndrome, but that I just have a long qt. He said he agrees with the computer printouts and says the computer printouts are usuallly pretty accurate. I asked him to manually calculate one of the ekgs and he said he came out with a range from 460-490 on just one of them.
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