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Suffering from tachycardia. Echo showed slight heart stiffness. Blood levels low. Suggestions?

I ve had a long ongoing problem with tachycardia after I get to sleep at night. Anywhere from 30 min to two hours. I become slowly aware of the rapid heartbeat . It wakes me up but not with a start. I can sometimes lay very still and wait it out for a few minutes. It has been clocked at 200bpm. My bp is generally low. I do have allergies to foods. I recently had an echo and all looked good except for a comment by doctor who said my heart seemed stiff , not serious but slight. I have palpitations that really improved with magnesium suppl. But blood levels are still a bit low.
Asked On : Tue, 26 Mar 2013
Answers:  2 Views:  35
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Internal Medicine Specialist 's  Response
Welcome to HCM,
After going through your history You have mild diastolic dysfunction which is stiffness of heart,other problem is gradually developing tachycardia as you said it is better with magnesium supplementation.
We need to know the cause for successful treatment you should consult a Cardiologist and investigate with Holter monitoring and if required with EPS or Electro physiological studies.Any presence of Ischemic heart disease and metabolic diseases like Hyperthyroidism, Anaemia,must be ruled out.
If cause is detected then treatment would be easy,Anti arrhythmic drug may be useful if your doctor finds suitable reason for prescribing it.
If every thing is fine to keep heart rate under control Beta blocker in low dose or Ivabradine which reduces heart rate and no other side effect may be tried.
Other possibility is sinus tachycardia but 200 BPM is really less likely.
Please take care
Good Luck
Answered: Wed, 27 Mar 2013
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Cardiologist Dr. Anantharamakrishnan's  Response
Hi friend,
Welcome to Health Care Magic

Correct the magnesium / check serum potassium and thyroid...
The arrhythmia has to be documented by an event monitor...
HOLTER (24 to 48 hour ambulatory monitoring) / TMT (Treadmill exercise ECG) / LABORATORY work-up – may all be necessary for further assessment and assistance.

Take care
Wishing speedy recovery
God bless
Good luck
Answered: Wed, 27 Mar 2013
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