Conclusion Both groups of general anesthesia with remifentanyl and epidural block combined general anesthesia are suitable for analgesia during thoracic surgery when OLV is used.

• 结论瑞芬太尼全麻与硬膜外复合全麻均对开胸手术单肺通气期间肺内分流和氧合的影响不，可安全应用。