Paralleling lead/read itself and to the aforementioned lead/read itself which from the proximal end are expanded in the distal (2036) end, the heart lead/read which includes with the coating where the heart electrode and the aforementioned electrode which are arranged are bonded part at least, the aforementioned coating, includes the electric conduction polymer.近位端部から遠位端部に伸長するリード本体と、前記リード本体に沿って配置された心臓電極と、前記電極の少なくとも一部と結合されたコーティングとを含み、前記コーティングが、導電ポリマーを含む心臓リード。