摘要：目的 探讨体外循环(CPB)围术期甲状腺激素(thyroid hormone，TH)变化规律和对术后甲状腺功能正常的病态综合症(euthyroid sick syndrome，ESS)的恰当的治疗方法。方法 将36例心脏手术患者分为对照组：非CPB心脏手术患者；观察组：常规CPB手术患者；实验组：为CPB围术期口服甲状腺素片0.4mg/(kg·d)患者。三组患者于术前，术中，术后监测血浆TH浓度。观察组、实验组术前及术后测肌酸激酶同工酶MB(CK-MB)值及左室射血分数(EF)左室缩短分数(FS)值等。结果 三组病人术前TH无显著差异，三组患者术后均存在ESS，CPB手术患者的ESS更严重，实验组ESS恢复更快。实验组CK-MB术后与术前的差值与观察组的该值比较显著降低。实验组术后EF、FS值显著升高,循环稳定，血管活性药用量少。结论 围术期小剂量甲状腺激素治疗有利于改善CPB手术导致的ESS，能改善术后心功能，促进循环稳定。

    关键词：体外循环；甲状腺激素；肌酸激酶同工酶；

    Perioperative use of Exogenous Thyroid Hormone in Cardiopulmonary Bypass Surgery

    YU Dong-liang；XU Jian-jun；LI Zhi-min；PENG Jin-hua；JIANG Han DONG Xiao

    (Department of Cardiac Surgery,The Second Affiliated Hospital, Jiangxi Medical College, Jiangxi Nanchang 330006 China)

    Abstract: OBJECTIVE To detect the changes of serum thyroid hormone (TH) during CPB surgery and the reasonable therapy of ESS due to CPB surgery.METHODS 36 patients were divided into three groups,8 non-CPB operation cases as groupⅠ. 8 routine CPB operation cases as groupⅡand 20 cases treated with exogenous TH(an oral tablet of 0.4/(kg·d) for 5 days preoperatively and 3 days postoperatively) as groupⅢ.Serum TH and thyroid-stimulating hormone(TSH) were measured perioperatively in all patients. Ejection fraction(EF),Fraction short(FS) ......