A system for delivering energy to targeted cardiac tissue of a subject and for confirming successful ablation of said targeted cardiac tissue, comprising: a catheter comprising a high resolution electrode along a distal end of the catheter configured to deliver ablative or other energy to tissue and capable of transferring heat to or from such tissue, while being capable of obtaining accurate mapping data of adjacent tissue; an energy delivery module comprising a processor, the energy delivery module being configured to operatively couple to the catheter, wherein the energy delivery module is configured to energize the electrode to selectively ablate targeted cardiac tissue adjacent the electrode; wherein the energy delivery module comprises a radiofrequency generator configured to deliver RF energy to the electrode; and a pacemaker, wherein the pacemaker is integral to the energy delivery module; wherein the system is configured to detect a signal relating to a localized heart rate at the high resolution electrode via the high resolution electrode; wherein the energy delivery module is configured to selectively pace cardiac tissue in order to attain capture of the heart of the subject; wherein the system is configured, via a predetermined pacing signal provided to the catheter by the pacemaker, to increase the heart rate of the subject from a baseline level to an elevated level, the predetermined pacing signal comprising a pacing level greater than a pre-ablation pacing threshold level of 0.1 to 3 milliamps; wherein the processor is configured to terminate the delivery of energy to the electrode after loss of capture of the heart of the subject; wherein the high resolution electrode comprises a distal portion and a proximal portion, the distal and proximal portions of the high resolution electrode being operatively coupled to each other using at least one filtering element, wherein the filtering element comprises a capacitor, wherein the distal and proximal portions of the electrode function as a single longer electrode in a RF operating range; wherein the pacing level of predetermined pacing signal is 5 to 20 milliamps (mA); wherein the elevated level of the heart rate upon pacing the cardiac tissue at the predetermined pacing level is 100 to 200 beats per minute (bpm); and wherein the energy delivery module comprises at least one filter, the at least one filter being configured to isolate the signal relating to the localized heart rate signal. a catheter comprising a high resolution electrode along a distal end of the catheter configured to deliver ablative or other energy to tissue and capable of transferring heat to or from such tissue, while being capable of obtaining accurate mapping data of adjacent tissue; an energy delivery module comprising a processor, the energy delivery module being configured to operatively couple to the catheter, wherein the energy delivery module is configured to energize the electrode to selectively ablate targeted cardiac tissue adjacent the electrode; wherein the energy delivery module comprises a radiofrequency generator configured to deliver RF energy to the electrode; and a pacemaker, wherein the pacemaker is integral to the energy delivery module; wherein the system is configured to detect a signal relating to a localized heart rate at the high resolution electrode via the high resolution electrode; wherein the energy delivery module is configured to selectively pace cardiac tissue in order to attain capture of the heart of the subject; wherein the system is configured, via a predetermined pacing signal provided to the catheter by the pacemaker, to increase the heart rate of the subject from a baseline level to an elevated level, the predetermined pacing signal comprising a pacing level greater than a pre-ablation pacing threshold level of 0.1 to 3 milliamps; wherein the processor is configured to terminate the delivery of energy to the electrode after loss of capture of the heart of the subject; wherein the high resolution electrode comprises a distal portion and a proximal portion, the distal and proximal portions of the high resolution electrode being operatively coupled to each other using at least one filtering element, wherein the filtering element comprises a capacitor, wherein the distal and proximal portions of the electrode function as a single longer electrode in a RF operating range; wherein the pacing level of predetermined pacing signal is 5 to 20 milliamps (mA); wherein the elevated level of the heart rate upon pacing the cardiac tissue at the predetermined pacing level is 100 to 200 beats per minute (bpm); and wherein the energy delivery module comprises at least one filter, the at least one filter being configured to isolate the signal relating to the localized heart rate signal.