Implantable extravascular electrical stimulation lead having improved sensing and pacing capability

An implantable medical electrical lead comprising:

• an elongated lead body having a distal portion and a proximal end;
• a connector at the proximal end of the lead body;
• a defibrillation electrode located along the distal portion of the lead body, wherein the defibrillation electrode includes a first segment and a second segment proximal to the first segment by approximately 1-3 centimeters (cm);
• and
• at least one pace/sense electrode located between the first segment and the second segment of the defibrillation electrode.

An implantable cardioverter-defibrillator system comprising:

• an implantable cardioverter-device (ICD) that includes a therapy module configured to generate and deliver electrical stimulation therapy;
• and
• an implantable medical electrical lead electrically coupled to the therapy module, wherein the lead comprises:
• an elongated lead body having a distal portion and a proximal end;
• a connector at the proximal end of the lead body;
• a defibrillation electrode located along the distal portion of the lead body, wherein the defibrillation electrode includes a first segment and a second segment proximal to the first segment by a distance;
• and
• at least one pace/sense electrode located between the first segment and the second segment of the defibrillation electrode.