Thank you very much johnwen! I think he has had this unit since the summer of 2007, and I do not believe the pacemaker is active - it is being used as a defib unit. Thanks for the link, I have a better idea of what happens (not sure I'd want him to see that video! Sometimes ignorance is bliss.) The question remains, (because they are indicating it is "his" decision?!) - whether he should add another lead, which might be the third lead, or try to remove the broken one. You imply that while time consuming, it is pretty routine to remove the "screws." Sigh. His doc has presented it this way: It is a very routine procedure to add a lead, but he would need a "team" to help with removing the old lead. This doc implied that if it was his dad, he'd add the lead.
Owen R. Fonorow, Orthomolecular Naturopath
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