Inclusion Criteria:

• American Society of Anesthesiologist physical status I-III;
• Scheduled elective thoracoscopic esophagectomy(three-incision approach);
• Approved participation before study.

Exclusion Criteria:

• Patients with contraindications for local nerve block such as spinal anatomic structure abnormality or local infection of puncture area;
• Anergic to medications used in this study;
• Patient have chronic pain;
• Patient receiving anticoagulants, opioids or have a history of narcotic abuse or alcohol abuse;
• Inability to complete postoperative pain assessments or questionnaires due to communication barriers or mental disorders;