subclavian artery 128 are also shown in fig2 e in other examples nerve trunks innervating other organs such as the lungs or kidneys are transvascularly stimulated in an example an expandable electrode such as a stent is implanted in a blood vessel proximate a nerve or nerve trunk that innervates the lungs or kidneys referring again to the example shown in fig1 a an implantable device 100 is coupled to a lead 200 that is inserted into a blood vessel and coupled to an electrode 295 an electrical signal is delivered through the lead 200 to the electrode 295 which transvascularly stimulates a nerve on an extravascular surface of the blood vessel the device 100 can optionally also deliver cardiac resynchronization therapy crt through one or more crt leads that are threaded intravenously into the heart the crt leads connect the device 100 to electrodes 300 that are used for sensing or pacing of the atria and or ventricles transvascular stimulation electrode 296 is coupled to a crt lead some embodiments process intrinsic electrical heart signals and deliver a responsive neural stimulation therapy through one of the electrodes 295 296 an optional satellite unit 110 includes an electrode for neural stimulation and a communication circuit that communicates with the device 100.