I don't understand the original plan to combat Tachycardia with a pacemaker. Doesn't work that way, pacemakers are treatment for Bradycardia which means slow heart beat, the exact opposite of Tachycardia. To my point, you might want to get a second opinion from another Cardiologist with no connection to your current. There are a number of options for POTS treatment.

Don't worry about what may be, focus on what is. Stress is a huge factor in exacerbating heart disease. If you really are worried about CHF, just ask the Cardio to perform an echo test to determine your ejection fraction. That is the percentage of blood being pumped out of the ventricles. Anything 50% or greater is normal. No heart ejects 100% which is why the ventricles are larger than the atrium chambers.

But again my advice is to get a second opinion. Good luck

Thank you for your response. I should have explained further but I was using my cell phone which died on me.

I know that pacemakers are used for bradycardia and I raised the question of why he would recommend it for my heart.
He explained that because I am very symptomatic which is progressively getting worse and the holter monitor showed that my heart will maintain a very rapid rate for long periods, 128 for 8hrs straight, and that it beats 3 times, My daily activities are greatly affected by the symptoms it causes.
He said that the pacemaker would be able to bring my heart down to a normal rhythm and keep it steady. The pacemaker was a last result after the medication trials failed miserably.
I have tried many different methods to help with the POTS. Unfortunately there are many contra-indicators with regards to treatment options and other medical conditions I have.

I have an appointment set for December with my cardiologist. I'm planning to bring up my GP's concerns of CHF.

Perhaps what he meant was a Defibrillator (ICD) or CRT. A pacer cannot slow a heart beat. ICD's and CRT-D have a function called ATP - Anti-Tachycardia Pacing. It overdrives the heart beat at a higher rate then allows it to go back to sinus rhythm. Both of these devices have a fully operational pacemaker built in. Many doctors refer to both as pacemakers even though they are not.

CRT can be beneficial for some CHF when the ventricles are out of sync timing wise. Known as Left Bundle Branch Block (LBBB).

Start keeping a list of questions and keeping adding to it until your appointment. Take the list with you to the doctor and read the questions from it if you need to. I learned a long time ago, going in with questions in my head, I always forget to ask one or two of them. With the list, at least you will be able to touch on everything that is important or confusing to you. Being prepared always helps.

Good luck with your next appointment!

Some people are going to hate me for bringing this up, but have you had your thyroid checked recently?

Often, a fast heart rate is due to hyperthyroidism, but my husband was diagnosed with hypothyroidism on his way to getting the CHF diagnosis. Because of what i have read about the results of at least one clinical trial, I believe that the main reason my husband is doing so well now, without a pacemaker or defibrillator, is due to taking levothyroxine for low thyroid function.

In any case, there is hardly anything more stressful than waiting around to get worse or to die.

Thanks for the replies, I really appreciate it.

RoboPop, you may very well be right, it's been nearly 2yrs since the discussion came up.

I've started a list of questions and will definitely be taking it with me in Dec.
I've had my thyroid checked many times and it is now part of the usually lab work my GP orders. It's always come back fine.

Thanks again!