A method and system for stabilizing an implantable lead system employs a lead
having
one or more sensing, pacing, or shocking electrodes. A sleeve arrangement of the
lead includes one or more first locations comprising a first material that substantially
prevents or inhibits tissue in-growth between the first locations and cardiac tissue
contacting the first locations. The sleeve arrangement further includes one or
more adhesion sites provided at one or more of the first locations. The adhesion
sites promote tissue in-growth or attachment between the adhesion sites and cardiac
tissue contacting the adhesion sites. The cardiac tissue may represent tissue of
a cardiac structure of the heart or coronary vasculature of the heart.