血镁水平对重型颅脑外伤患者预后的影响

目的研究颅脑外伤（TBI）后血镁浓度及早期补充硫酸镁对TBI的治疗意义。方法检测231例TBI患者人院时的血镁浓度，并将其中62例重型TBI患者随机分为硫酸镁治疗组（n=32）及对照组（n=30）。硫酸镁治疗组除常规治疗外给予硫酸镁2g（16mmol），稀释至100mL于15min内推注，另加硫酸镁7．80g（65mmol）稀释至500mL静滴24h。对照组不补充硫酸镁，其余治疗同硫酸镁治疗组。检测患者入院时、入院第3天的血镁水平及入院时、入院1周时的血神经元烯醇化酶（NSE）浓度。6个月后以格拉斯哥预后评分（GOS）评估各组治疗结果。结果重型TBI患者入院时的血镁浓度与轻中型TBI患者相比，差异无统计学意义（P〉0．05）。两组重型TBI患者伤后1周时的血NSE水平比较，差异无统计学意义（P〉0．05）。伤后6个月，比较两组治疗结果（GOS）为较差和较好的比例，差异无统计学意义（P〉0．05）。结论TBI后早期患者血镁浓度与伤情无必然联系；早期补充硫酸镁未能明显改善重型TBI的治疗结果。

Influence of plasma Mg2+ on outcome of severe traumatic brain injury

Objective To detect the concentration of plasma Mg2+ after traumatic brain injury(TBI) and role of early supplement of MgSO4 in the treatment of TBI.MethodsTwo hundred and thirty-one patients with TBI were enrolled and the concentrations of plasma Mg2+ at admission were detected.Sixty-two patients with severe TBI were randomly divided into MgSO4 treatment group(n=32) and control group(n=30).In MgSO4 treatment group,MgSO4 2 g(16 mmol) was diluted to 100 mL and injected in 15 min,then MgSO4 7.80 g(65 mmol) wa...