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Hello Picadura,

I have no experience with ICD or pacemakers however I have some experience with Eurorack and electricity in common. Here some food for thought that hopefully might help you:

• Use good quality and thick patch cables --> thought behind this is if you use thicker patch cables risk of AC leakage currents should be lower or even eliminated and good quality should make sure that you will not have patch cables that easily wears of, especially at the connections between the cables and plugs however even a low quality cable the mantle of the cable might just come off as I had with another (non-patch and non-Eurorack) cable.
• Make sure you leave no open spaces left in your Eurorack system, meaning you should use blind panels. So nothing unexpected can happen for those "open" spots in your Eurorack --> many blind panels are made of aluminium that is not so good for your case since that might short cut electricity in one or another way. Consider for example blind panels that are made of PCB material like those from Make Noise
• Easier said then done: Use as less as possible metals in your rack. Depending on how far you would like to extend this you could consider not to take modules with metal panels, which is the majority I am afraid. However there are brands that use wooden panels (like Bastl Instruments, L.E.P.) or panels made of PCB material (like Make Noise, Mordax). I am not sure about Centrevillage.net what material they use for the front panels, might not be metal. There was one other brand that doesn't want to come to my mind who use some special non-metal material, so sorry that I forgot that brand. If I remember I will later add it here. There might be more brands around that use non-metal-panels. On the other hand... yes aluminium is a metal and yes it conducts electricity but it isn't the best conductor, so perhaps aluminium panels are still acceptable for you?
• Again depending on how important this is for you and how far you want to take this, you could take your Eurorack to a lab where they can measure the "electricity leakages" --> perhaps that's the best to start with before putting enormous energy in improving everything and perhaps its all not necessary? So having it tested by a (professional) lab might be the first step to check if anything further is needed at all?

My guts feelings says, without having here any proof to underwrite this, that I tend to agree with the physician you checked with and since these are low voltages the risks should be very limited (especially if you keep a good distance, perhaps to be checked with a professional, what that distance would be? 10 cm or 25 cm or?), otherwise other pacemaker users would have serious other problems in our nowadays daily lives. Almost everywhere in the households and at work we are using tons of (electric) devices. As long as those devices are either using low voltages and/or shielding it off, the risks should be very limited. Of course, please have this checked by an expert specialised on ICD & Pacemakers.

Take care, I hope you still can enjoy modular and kind regards, Garfield.