Patients with PTPS suffered more depression and insomnia.The incidence of PTPS was not different in patients who received GA alone or GA plus TEA (39% vs. 42%).

• 至于术后疼痛现象之发生率在只接受全身麻醉(GA)与全身麻醉辅以胸椎硬膜外止痛剂(GA+TEA)之病人并无统计上有意义的差别（39%25比42%25）。