Thank you for your query.
It is very unfortunate to learn that you nephew has to have a pacemaker implant and may be sufferring from cardiomyopathy
at this age. Steroids
, per se, does not cause cardiomyopathy. However, occasional case due to anabolic steroids have been reported.
It is better to see the whole issue developing over a period of time and a proper follow-up can alert the doctor to the right line of management.
I hope I have answered your query to your satisfaction.
Wishing your nephew an early recovery.
Rajiv K Khandelwal