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What Causes Fluctuations In Ejection Fraction Values?

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Posted on Fri, 29 Apr 2016
Twitter Fri, 29 Apr 2016 Answered on
Twitter Tue, 21 Jun 2016 Last reviewed on
Question : Dear Dr. Iliri,
It is XXXX again, after nearly a month- a long time for me to not ask you a question. It has been now nearly a month since my last echo, so the doubts start setting in very strongly at this point and I become tempted to visit the ER for reassurance. Also, during this journey of OCD and PTSD, I have actually 3 doctors that I have been seeing regularly, which allows me more testing. I know this must all stop in order for me to live normally again.

I want to thank you so much, for all the help you have provided over the last year. I believe I have very good doctors now, but generally appointments are very brief and I am treated as someone who doesn't really need to be seeing a cardiologist. It is confusing to me as I am told I do need the testing every six months, but am also told that I have nothing to worry about. Will I ever be free and not need testing? Will I ever be normal?

You have made me think a lot, and when I consider when I was diagnosed, in October 2014, I had felt very ill for about a week, but I believed it was an allergy to the cough medication Tessalon (benzonatate). I went to the cardiologist because I would have intermittent episodes of not being able to walk for more than a block before feeling like the wind was knocked out of me and having bronchospasms and needing to sit. I could not walk even a single flight of steps without stopping and resting. It was frightening but I believed it was the Tessalon. I guess I will never know for sure if the my Tessalon allergy played a role in worsening my arrhythmia\heart function or if it was coincidental. So my diagnosis and treatment of cardiomyopathy began at the same time I stopped taking the Tessalon and I felt better right away.

When I think back, I know now that for at least three months before taking Tessalon I had been a little tired, had a cough, and constant PVCs. While not extreme, I noticed that hills were hard for me to walk up, and I thought it was stress as I was taking care of my child, working full-time, and taking care of both my disabled parents.

Once I was diagnosed, I was told I was "well-compensated" and "asymptomatic". I looked normal and felt "almost" normal. I was given lisinopril and carvedilol but never a diuretic. My doctors believed I did show signs of CHF, but my ProBNP (I learned later) was over 8000 and I was still coughing. I didn't appear to have peripheral edema, no pitting, but after my ablation my shins, which had been shiny and tight, became immediately soft and lost their sheen.

Sorry to go on and on- I actually do have a question, which is this: how could I have been so sick, with EF 25, and told I had limited time, would need a heart transplant, would not survive long, etc... and yet also told I was well-compensated and doing well, all things considered? I was told most in my condition would not have been able to walk or function normally. Once the Tessalon was stopped, I felt quite normal. So my worry is this- couldn't I once again be sick, have a weakened heart, and yet have doctors think that I am okay as I don't look visibly edematous or am not noticeably out of breath? It is why I am so addicted to the echoes- two ER doctors released me and said I had allergies when I actually had cardiomyopathy as I wasn't given echo until I requested one from a cardiologist at his practice. How can I trust that I don't need an echo to know that I am ok?

Second question- I am a member of a heart-disease community (I should stop reading it, I know) and people with idiopathic dilated cardiomyopathy frequently report very fluctuating EFs. They seem to go from 25 to 50 t0 55, back down to 30. It is what makes me think that heart function is so variable. Of course I don't see their echo reports, only the EF numbers we are always so fixated on. Is this variability likely because they still have "active" cardiomyopathy, with enlargement and other issues and they are on medication? Occasionally someone will report that they have normal EF again, but they are never deemed cured, or taken off medications. Is PVC-induced CM different? Am I truly cured?

I know I have to trust my doctors and you. I have to realize there is more than ejection fraction and my doctors are following me closely. I have to stop trying to check my pulse pressure (sometimes it feels so faint and I'm sure I'm dying even though I feel utterly normal) and checking fluids, especially, but I feel like I have to be on high alert as things could change at any moment, as it seems to, for most people with DCM. I feel tomorrow if I visit ER, maybe I'm in heart failure, with EF 25 again.

Sorry, these questions are not focused, but I guess I just want to know how I am different from those with DCM who have recovered normal EF and yet are not considered cured. I have been off all medication now for 5 months, am exercising every day, and have great energy, but I am afraid every day.

Thank you, Dr. Iliri. You have helped me so much. Only with your help have I been able to survive over the last year.

Many many thanks,

XXXX
doctor
Answered by Dr. Ilir Sharka (10 hours later)
Brief Answer:
I would explain as follows:

Detailed Answer:
Hello dear XXXX,

I am glad to hear from you again on HCM!

First, I would say that you are following a healthy lifestyle (physical activity and balanced diet) and that is the best thing you can do.

I would explain that there is no reason for the fluid restrictions. You can take fluids like all other healthy persons.

Regarding your concern, I would explain that you do not have dilated cardiomyopathy and should not compare yourself with other patients with this disorder. Actually you have a normal heart structure and function and there is no risk for any other complications as your cardiac arrhythmia has been controlled by the successful cardiac ablation.

Regarding your question on DCM, I would explain that this is a progressive disorder, which except for some rare cases, does not make fluctuations (worsening and than improvement), but it is characteristic that different patients may show similar as well as different functional class, irrespective of their similar or different EF.

To make it more clear and easy to understand I could say that a patient with 35% EF may show quite a better overall physical performance compared to another with EF of 40% and this may be explained by several reasons, especially cardio-vascular and body conditioning.

But this is not your case. You have not a dilated cardiomyopathy and your EF is perfectly normal.

So relax and not think about it any more!

On my opinion, a yearly cardiac ultrasound is quite enough for a careful follow up. You do not need more frequent echo exams.

Hope to have clarified some of your uncertainties and made you feel better.

If you have any other questions, please do not hesitate to ask me at anytime!

Wishing a nice weekend!

Kind regards,

Dr. Iliri

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
doctor
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Follow up: Dr. Ilir Sharka (2 days later)
Thank you so much Dr Iliri. So in my case of pvc-induced cardiomyopathy- I very suddenly developed PVCs, in high number- when my illness developed would it have happened slowly or would my EF had dropped quickly? I developed PVCs in May 2014, and by August 2014 I had some orthopnea although I didn't know what It was and thought it was just allergies causing discomfort when lying down.

Is the edema in heart failure directly related to fluid consumption/retention/lowered urine output or is it a more complicated process? I never noticed lowered urine while sick but I never paid attention. I wish desperately I could simply forget again.

I guess I am trying to figure out if I could possibly fall ill again and somehow miss the signs, as I did last time. I wish I had felt worse than I did, but I was living my life wirh mild symptoms which seemed like stress.

Thank you Dr Iliri. Your help is what gets me through many days. 3 1/2 weeks since last echo and of course I am worrying that there have been negative changes.

Many thanks,
XXXX
doctor
Answered by Dr. Ilir Sharka (7 hours later)
Brief Answer:
My opinion as follows:

Detailed Answer:
Dear XXXX,

I would explain that cardiac arrhythmia may lead to adverse ventricle(s) remodeling, especially tachyarrhythmias or frequent PVCs leading to cardiac chamber dilation and decreased EF (arrhythmia induced cardio-myopathy) or tachycardiomyopathy).
But for these complications to happen, it is necessary a sufficient time extending to several months on average and this is not a silent or mildly symptomatic period.

So it is impossible that a new relapse of heart failure and LVEF impairment to happen while you are completely recovered from cardiac arrhythmia and without any heart failure complaints.

Regarding edema, it is a complex consequence resulting from activation of vicious compensatory mechanisms due to impaired cardiac output in heart failure. These mechanisms lead to increased kidney sodium and water re-absorption, vasoconstriction with decreased urine output and elevated systemic venous pressure.

I have explained you before, considering too closely measurements of urine outputs is useless, as it is a poor evaluation of body fluid balance.

You just need to relax as based on your health conditions based from all the previous medical reports, it’s impossible for heart failure to happen again. A more frequent cardiac ultrasound follow up is not necessary as it would yield same results.

Hope to have been helpful!

Kind regards,

Dr. Iliri

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
doctor
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Follow up: Dr. Ilir Sharka (2 days later)
Thank you dr iliri. I tell myself after each echo
that I will stop being so anxious but I find that even one month after my last echo I am worrying that EF 64 is significantly lower than 70 in February. I wait in agony for next echo and fear <55.

So my measuring fluids and riduculously putting my feet up after drinking is doing nothing? If i drank and movef normally my kidney function would be the same? I fear if I stop these rituals I will immediately go into heart failure. I know I cannot go to ER every week so I must learn to live again.

My PVCs have not returned and I have no symptoms other than worry always of fluid retention but no visibl

edema. I would definitely have signs such as shortness of breath or fatigue if I were having a relapse?

Thank you so much.
XXXX
doctor
Answered by Dr. Ilir Sharka (13 hours later)
Brief Answer:
There is nothing to worry about!

Detailed Answer:
Dear XXXX,

I can understand the way you feel and your fears after all you have passed through.

But I can reassure you that this situation is not going to repeat.

All your performed tests are reassuring that your heart is in a perfect condition.

Some changes in the ultrasound findings are not indicative of any possible aggravation of your situation.

Besides, you have no symptoms that could make me think of a clinical aggravation.

I agree with you that your clinical situation would be totally different from your actual one if you were having a relapse.

So relax, take a deep breath and try to think about something beautiful!

It is time to enjoy your life! You should not spend more time dealing with your fears!

I am here to support you whenever you need an advice.

Greetings!

Dr. Iliri
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
doctor
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Follow up: Dr. Ilir Sharka (3 days later)
Thank you so much, Dr. Iliri. I wish all my doctors here had believed in PVC-induced cardiomyopathy as the doctor I speak of so much who was so obsessed with fluid told me that my theory based on research was that PVCs could have caused my heart problems, he said it was a fairy tale. Even my current doctor, who originally diagnosed me and did my most recent echoes didnt think it was likely that my PVCs alone caused my cardiomyopathy until my echo three weeks after ablation was completely normal. He was shocked and says I am one of his top 3 cases in terms of recovering so quickly from what he called a "dire" condition.

Would you think it was predictable that someone with 65,000 PVCs a day would get cardiomyopathy? Would 50% PVC burden make sense to you to cause EF 25? I am just so shocked now that I walked around for months with the constant PVCs and then eventually signs of heart failure but never imagined I could be seriously ill. But I never felt sick enough to need to stop work or even skip going to the gym or play with my son. Without having adverse reaction to medication, I probably would have just had cardiac arrest without knowing I was sick.

I am trying to remind myself that I did know that I was having PVCs. I am telling myself that you have said without a reason, I would not just spontaneously go into heart failure.

For me, it feels like I just went into heart failure with no signs and no symptoms and no cause so that's why I am so scared, especially of fluid. But I have to keep reminding myself that I had a cause which is now cured.

Is that right? One doesn't float in and out of heart failure for no reason? Without ablation, my heart would not have returned to normal size with normal valves and EF? Are people with DCM from other causes(other than arrhythmia) ever cured and taken off medication?

Thank you so much, Dr Iliri. Despite my continued questions and need for constant reassurance I am getting much better. If only I could forget about fluids, I would be happy.

Thank you again,
XXXX
doctor
Answered by Dr. Ilir Sharka (16 hours later)
Brief Answer:
Opinion as follows:

Detailed Answer:
Dear XXXX,

I would say that as we can suppose that normally you may have an average of around 120000 heartbeats /24 hours, a number of 65000 PVC/24 hours (around half the heart activity) is quite enough to be considered a cause of your previous cardiomyopathy.

So, there are no doubts on this matter.

The fact your cardiomyopathy resolved completely after the successful cardiac ablation confirms definitely the above opinion.

But, this is a past history and will never repeat again. I assure you for that.

Yours is one of the rare options when a cardiomyopathy may resolve completely.

And this is exactly what has happened. You are completely recovered, actually in perfectly normal health conditions.

You should consider yourself a lucky woman. A great proportion of DCM has a continuous deteriorating progression.

But, in your case, the triggering responsible factors were completely suppressed and there is no reason why you should fear again of any heart failure recurrences.

Coming to this point, I would say that your obsession about fluid retention is not justified in any way.

As your heart is perfectly normal, the possibility that excessive fluids may abnormally accumulate in your body is quite inexistent.

So relax and don’t worry about!

You are free of having a normal life, with a lot of physical activity and diverse diet.

Following frequent physical activity and training will also relieve your anxiety and will make you feel better.

Hope my answer will give some relief.

Wishing you a pleasant day,

Kind regards,

Dr. Iliri
Note: For further follow up on related General & Family Physician Click here.

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Answered by
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Dr. Ilir Sharka

Cardiologist

Practicing since :2001

Answered : 9515 Questions

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What Causes Fluctuations In Ejection Fraction Values?

Brief Answer: I would explain as follows: Detailed Answer: Hello dear XXXX, I am glad to hear from you again on HCM! First, I would say that you are following a healthy lifestyle (physical activity and balanced diet) and that is the best thing you can do. I would explain that there is no reason for the fluid restrictions. You can take fluids like all other healthy persons. Regarding your concern, I would explain that you do not have dilated cardiomyopathy and should not compare yourself with other patients with this disorder. Actually you have a normal heart structure and function and there is no risk for any other complications as your cardiac arrhythmia has been controlled by the successful cardiac ablation. Regarding your question on DCM, I would explain that this is a progressive disorder, which except for some rare cases, does not make fluctuations (worsening and than improvement), but it is characteristic that different patients may show similar as well as different functional class, irrespective of their similar or different EF. To make it more clear and easy to understand I could say that a patient with 35% EF may show quite a better overall physical performance compared to another with EF of 40% and this may be explained by several reasons, especially cardio-vascular and body conditioning. But this is not your case. You have not a dilated cardiomyopathy and your EF is perfectly normal. So relax and not think about it any more! On my opinion, a yearly cardiac ultrasound is quite enough for a careful follow up. You do not need more frequent echo exams. Hope to have clarified some of your uncertainties and made you feel better. If you have any other questions, please do not hesitate to ask me at anytime! Wishing a nice weekend! Kind regards, Dr. Iliri