Analgesic Effect of Intrathecal Morphine Combined With Low Dose Local Anesthetics on Postoperative Analgesia After Liver Resection
Conditions
- Patients Receiving Hepatectomy Under General Anesthesia
Interventions
- DRUG: Percutaneous injection
- DRUG: Morphine
- DRUG: Morphine+Bupivacaine
Sponsor
Yonsei University