The analgesic efficacy of the insertion of the thoracic paravertebral catheter ultrasound - guided was better than loss of resistance technique: The spread of the spread of sensory segments blockake on the skin of group ultrasound guidance was higher than lost resistance group (from 4 hours to 48 hours postoperative) (7, 28±1, 05 segments sv 6, 62±1, 15 segments, p<0, 05).