The system comprises an ablation catheter (1) having an ablation arm for which ablation energy is supplied, and a rinsing channel opening on rinsing opening. An ablation generator supplies energy to the ablation area in the form of high-frequency voltage, and a refrigerant. A rinsing liquid source supplies the rinsing liquid through the rinsing channel to the rinsing opening. A blood pressure measurement device in fluid communication with the rinsing channel of the ablation catheter detects the intracardiac blood pressure through rinsing liquid situated within the rinsing channel. An independent claim is included for cardiac ablation method.
