Septal perforating vein pacing

A system for delivering pacing therapy to a patient's heart, the system comprising:

• a catheter comprising an elongate housing extending between a proximal end region and a distal end region, wherein the elongate housing defines a lumen extending therethrough, wherein the catheter is configured to be inserted through the coronary sinus ostium of a patient's heart such that the distal end region of the catheter is positioned into the great cardiac vein past the anterolateral vein of the patient proximate at least one septal perforating vein of the patient's heart, wherein the catheter is further configured to inject contrast into an injection area proximate the at least one septal perforating vein;
• a pacing lead extending between a proximal end region and a distal end region, wherein the pacing lead comprises a plurality of electrodes proximate the distal end region, wherein the distal end region of the pacing lead is positionable in an implant region proximate the at least one septal perforating vein and the injection area;
• and
• a controller operably coupled to the pacing lead and configured to deliver pacing therapy to the implant region, through at least one electrode of the plurality of electrodes, when the distal end region of the pacing lead is positioned in the implant region.