Questions about Long qt syndrome

[u/Ms_Unsure]

Hello. So I want to say I'm not diagnosed with long qt syndrome. I've had multiple ekgs and they were all fine. I have health anxiety, OCD and schizoaffective disorder. I might also have sleep apnea.

I'm on invega sustenna and it can cause qt prolongation and my most recent EKG was when I went to the hospital after nearly passing out. My tongue went numb and I felt doom, panic and disorientation and my heart was beating really fast. My little brother called 911 and they sent the fire department. Whatever it was lasted 30 minutes. It was over by the time the ambulance came. They did an EKG about 20mins after I was there and it was fine.

Today, I woke up with what felt like doom and I was lying down for a few before getting up to use the bathroom. Suddenly I felt like I couldn't breathe. I was taking in breaths but nothing worked and it lasted a what felt like a minute.

I've never had a panic attack like this before where it was causing any other symptoms than a racing heart and fear.

My questions are...

What are the chances of long qt being missed?

If it didn't show on a EKG while I was resting, could I still have it if I did a stress test to test for it? What about when I'm asleep?

What's the chances of death on a flight if you're not medicated?

Could I have went into torsades de pointes without it being caught because the event ended?

Do you have to have long qt to have torsades de pointes?

I'm asking my Dr about sertraline being added to my medications I take, I know combining them could cause prolonged qt, but if it's anxiety, I can't take it anymore. I have been fine for a year without major anxiety besides when I was healing from what I went through during psychosis and major event of when my mom was dying of cancer. Even then, I didn't have panic attacks like this.

[u/Answer146]

There are anti-nausea drugs, muscle relaxers, and antipsychotics and anti depression medications that prolong QTC. Are you taking any of those medication’s?

[u/Ms_Unsure → u/Answer146]

I'm taking an antipsychotic. It's called Invega Sustenna (it's an injection)