Hello!
Thank you for asking on HCM!
As you refer you have an ICD-pacemaker (incorporated on a single device) implanted. You are concerned about the usefulness of that device.
As doctors have previously decided to implant that device, there must have been a clear and strong indications for both exerting functions, that is pacing and life-threatening
arrhythmia suppresion (pacemaker+ICD).
I don't believe that these defined indications have faded already.
On my opinion, you have to discuss with your treating dotors about the optimal management strategy (if you need to modulate device settings, to re-positions its leads, and other tecnical matters), as they know the full picture of your prior and actual medical history, your actual cardiac performance, potential rhythm and conductance disorders.
If you have concrete medical informations regarding this issue, do not hesitate to consult them with us.
Hope to have been helpful to you. Greetings! Dr. Iliri