尼卡地平对原发性高血压患者围术期胰岛素敏感性的影响

目的观察尼卡地平对原发性高血压(EH)患者围术期胰岛素敏感性的影响。方法择期行肺癌肺叶切除术的EH患者38例随机分为尼卡地平组(N组,20例)和对照组(C组,18例)。N组麻醉诱导后静脉输注尼卡地平1μg·kg-1.min-1至术后1d;C组以相同速率输注等量生理盐水。测定麻醉诱导前即刻(T0)、手术开始后2h(T1)、术后4h(T2)和24h(T3)的血糖(BG)和血浆胰岛素(Ins),计算胰岛素敏感指数(ISI)。结果与T0时比较,C组T2、T3时BG和Ins明显上升,ISI明显降低(P0.05或P0.01),N组T3时BG和Ins明显上升,ISI明显降低(P0.05)。与C组比较,N组T2时BG明显降低(P0.05),T3时Ins明显降低(P0.01),T2和T3时ISI明显升高(P0.05)。结论术中静脉持续输注尼卡地平可增加EH患者术后胰岛素的敏感性,改善术后胰岛素抵抗的程度。

Effect of nicardipine on perioperative insulin sensitivity in patients with essential hypertension

Objective To investigate the effect of nicardipine on perioperative insulin sensitivity in patients with essential hypertension(EH). Methods Thirty-eight patients undergoing lobectomy continuously after induction of anesthesia in group N, while normal saline was infused in group C instead of nicardipine. Blood samples were taken immediately before induction of anesthesia(T_0), 2 h after skin incision(T_1) ,4 h after surgery(T_2) and 24 h after surgery(T_3). Blood glucose(BG) and plasma insulin (Ins) were measured. The Insulin sensitivity index (ISI) was calculated. Results Values of BG at T_2and T_3 in group C were higher than those at T_0 (P<0. 05). Value of Ins at T_2 in group C was higher than that at T_0 (P<0. 05),which at T_3 in group C was significantly higher than that at T_0 (P<0. 01). ISI at T_2 in group C was lower than that at T_0 (P<0. 05) ,which at T_3 in group C was lower significantly than that at T_0 (P<0. 01). Values of BG and Ins at T_3 in group N were higher than those at T_0 (P<0. 05), ISI at T_3 in group N was lower than that at T_0 (P<0. 05). Value of BG at T_2 was significantly lower in group N than that in group C(P<0. 05). Value of Ins at T_3 was significantly lower in group N than that in group C(P<0. 01). ISI at T_2 and T_3 in group N was min~(-1) infused continuously during and after lobectomy can increase significantly insulin sensitivity and improve postopertive insulin resistance state in EH patients.