The analysis of the lead demonstrated a damaged insulation and a fractured outer coil at a distance of some 27 cm distal to the is-1 connector pin.In that section, the lead body was found squeezed and deformed.The outer coil was found fractured.Based on the characteristics as well as the location of the damage, it is reasonable to assume that the lead had been subject to excessive mechanical forces as the result of clavicular ¿ first rib entrapment.The analysis did not reveal any sign of a material or manufacturing problem.
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