|One of my heart rate peaks, as measured by the|
It seems that my efforts to give them something to look at while I was wearing the Holter Monitor a week ago were more successful, and risky, than I thought. The two episodes I had of palpitating heart and lightheadedness while walking up a steep hill, matched recorded instances of my heart rate reaching around 230 beats per minute.
|Diagram of the heart showing the path of the macro-reentry|
circuit (wavy red line).
One medical website I found says "Atrial flutter with 1:1 conduction is associated with severe haemodynamic instability and progression to ventricular fibrillation", so I need to keep my heart rate lower until I get treatment. This diagnosis was a little more worrisome than I had anticipated.
The cardiologist is scheduling me for an Electrocardioversion within the next week aimed at resetting my heart's electrical system (in layman's terms) using externally-delivered electrical stimulus (the paddles, or similar). The cardiologist warned that this procedure may not yield a long-lasting solution, so I shouldn't get my hopes up. I will be able to resume my running, but the AFl could return, and I will have to stop again.
If that happens, then when I'm no longer considered at risk of further Deep Vein Thrombosis or Pulmonary Embolism, they will try a Cardiac Ablation using a catheter inserted into the heart through the femoral vein to cauterise the tissue where electrical short-circuit is occurring in the Atrium. This procedure has a high success rate and provides a longer-lasting solution, but I know everybody is different and I'm not counting my chickens yet.
I walked about 5km today, with no significant hills, and felt fine.
[Disclaimer: I have no medical qualifications at all and there may be significant errors in this blog post.]