Comparison of the Analgesic Effect Between Intrathecal Morphine and IV-fentanyl Patient Controlled Analgesia (ITM-IVPCA) and Epidural PCA (PCEA) in Patients Undergoing Gastrectomy -Randomized Allocation Study-

Comparison of the Analgesic Effect Between Intrathecal Morphine and IV-fentanyl Patient Controlled Analgesia (ITM-IVPCA) and Epidural PCA (PCEA) in Patients Undergoing Gastrectomy -Randomized Allocation Study-

The present study was designed to assess analgesic capacity of intrathecal administration of morphine combined with intravenous fentanyl patient-controlled analgesia (ITM-PCA) compared to patient controlled epidural analgesia using fentanyl and repivacaine (PCEA) in patients undergoing gastrectomy. The investigators hypothesized that ITM-PCA would show comparable analgesic effect to PCEA in gastrectomy.

Inclusion Criteria:

• I or II of preoperative physical status classification by the American Society of Anesthesiologists.
• more than 20 years old.
• undergoing gastrectomy due to gastric cancer.

Exclusion Criteria:

• contraindication to regional anesthesia technique (bleeding diasthesis, sepsis etc) or spine anomaly.
• prior history of abdominal surgery or spine surgery.