RecruitingDevice studyProspective Köln Bonn Registry for the Extraction of Pacmaker and ICD LeadsThe KOBES registry is an all-comers prospective clinical registry of the cooperative Köln Bonn lead extraction center. All patients undergoing complex lead extraction procedures (i.e. indwelling leads \> 6months) in the hybrid operating room with cardiothoracic standby will be included in the registry. Preoperative, intraoperative/procedural and postoperative parameters will be recorded. All patients will be asked to provide written informed consent. Data will be pseudonomyzed and entered into a data sheet. Data will be monitored by a board and evaluated independently.