Hi there, Thanks for writing. I am a qualified and certified cardiologist . Pacemaker implantation
is usually done below the collar bone and it does not produce any of the symptoms, though it can produce frozen shoulder
. On in your case the implant has been in axillary region then neuro vascular (Nerves and blood Vessels) can be compressed if there is swelling because of hematoma
. You are right in case of acute problem of complex nature a visit to ER is much better choice.
Dr Anil Grover,
Medical Specialist & Cardiologist
M.B.;B.S, M.D. (Internal Medicine) D.M.(Cardiology)