Subject and method: A prospective study of 40 patients divided into 2 random groups: PCTEA group of 20 patients controlled thoracic epidural analgesia with bupivacaine 0.1% + fentanyl 2g / ml, PCTPA group of 20 patients controlled thoracic paravertebral analgesia with bupivacaine 0.1% + fentanyl 2g/ml.