Heart & Cardiology/Tricuspid valve

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QUESTION: Thank you for your time and expertise.  I just got the results of my echocardiogram in the mail.  I am a 45yr female.  I had an avnode ablation after unsuccessfully trying to ablate multiple arrythmias, including aberrant afib.  I currently have a pacemaker.
My echo states:
Tricuspid valve: moderate regurgitation
Right atrial pressure: 5mmHG
Peak tricuspid insufficiency gradient: 38 mmHG
Estimated right ventricular systolic pressure:  43mmHG

Could you help me understand what those number mean.

My other question relates to exertion.  I have significant symptoms when i do basic exercise.  2 flights of stairs leaves me completely breathless.  My nuclear stress test had my baseline at 78bpm.  Peak was 105bpm.  Could the lack of rise in heart be causing my excersize intolerance?

Again, thank you so much for your help.

ANSWER: Hi Christine,
Please read my answer here:
http://www.cardiachealth.org/ca-blog/can-my-leaky-valve-cause-shortness-breath
Hope this helps,
Dr T
http://www.cardiachealth.org/

---------- FOLLOW-UP ----------

QUESTION: Dr T,
Thank you for your thorough answer.  I realize I need to provide more info.  On the same day, I had an echo and a nuclear stress test.  My EF on echo was 55 and 68 the same day on the nuclear stress test/scan.  I am normal wt 5'4" 130lbs.
So I wonder with a normal EF, are my symptoms of breathlessness and excersize intolerance more likely from Pulmonary Hypertension or a blunted heart rate, max 105 after medicine was injected for stress test?
Thanks again.

Answer
Hi Christine,
The results of your echo are confusing and may not reflect what is going on with the right side of your heart. If PH, the number aren't severe enough to explain your SOB.
I am not sure I can help you further from here,
Hope this helps,
Dr T
http://www.cardiachealth.org/  

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