Lead assembly having a tethered sensor and methods related thereto

A method comprising:

• disposing a lead body of a lead at a right atrium within a patient, the lead including the lead body and a tether coupled with a distal end of the lead body, the lead including a common active fixation element configured to secure both the distal portion of the lead body and a proximal portion of the tether to the heart, the tether having a sensor associated therewith;
• inflating a portion of the lead and allowing the tether to float to the pulmonary artery;
• actively anchoring the fixation element at a first position in the apex of the right ventricle;
• and
• measuring a physiological parameter using the sensor at a second position, wherein the physiological parameter includes pressure.

A cardiac lead comprising:

• a lead body having one or more conductors therein, the lead body having a proximal end portion, a distal end portion, and an intermediate portion therebetween;
• an electrode disposed along the lead body;
• a tether extending from a tether distal end portion to a tether proximal end portion, the tether proximal end portion extending from a distal end of the lead body, the distal end portion of the lead body and the proximal end portion of the tether having a V-shaped configuration configured for anchoring into an apex of the heart;
• and
• a pressure sensor disposed along the tether.