Studies evaluating the effectiveness of pain after thoracic surgery mixture of bupivacaine-fentanyl via the epidural catheter at 74 Central Hospital of 67 patients in two groups: Group I included 32 patients for postoperative pain relief inconventional method of intravenous morphine patient-controlled (PCA), group II included 35 patients for postoperative pain relief by means of continuous infusion bupivacaine-fentanyl mixture through an epidural catheter. Research results show that the time Ta, VAS scores of the two groups were on a 6-point, 15 minutes after injection, the level of group II significantly reduced pain (VAS 4 points) were in group I, VAS decreased but remained greater than 4 points. In the remaining time Ta20o - T48, VAS scores of the two groups continued to decrease differences compared with Ta On the other hand, the VAS of group II significantly decreased compared to group I at the corresponding time. When patient effort (cough, change posture), Point group VAS effort I at times have reduced but still 4, while in group II, from T1 onwards VAS effotf time 4 points, especially from T6 to T48, VAS effotf 2 points. Thus, despite the pain, but patient in group I exertion still more pain group II. This suggests that in patients using mixed methods using bupivacaine-fentanyl via epidural catheter for effective pain patients better pain relief by intravenous PCA morphine. The unwanted effects lower in group II than group I (p 0.05).
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