潜水人员脑血流和神经心理学的相关性

The correlation between cerebral blood flow and neuropsychology in divers

目的 了解潜水员脑血流改变和神经心理学变化的关系。方法 38名潜水员和 38名作为正常对照的护卫舰人员分别被分为潜水员组和对照组 ,两组人员均接受经颅多普勒 (TCD)检查和康奈尔医学指数测量。结果 潜水员组的峰值平均血流速度 (Vm) (6 8.12± 11.2 3) cm/s和阻力指数 (RI)(0 .6 1± 0 .0 1)明显高于对照组 Vm(5 5 .2 5± 10 .2 1) cm/s和 RI(0 .5 3± 0 .0 2 ) (P<0 .0 1)。潜水员组的 M-R评分 (9.0 0± 1.75 )分明显高于对照组 (5 .0 5± 1.43)分 (P<0 .0 1)。潜水员组的 M- R评分与 Vm、RI相关系数分别为 r1 =0 .6 5 0 7和 r2 =0 .6 40 3,有明显相关性 (P<0 .0 1)。结论 潜水员神经心理学改变与其相应的脑血流减低有关。

Objective To investigate the relationship between cerebral blood flow and neuropsychology in divers. Methods 38 divers and 38 normal surface ship personnel were divided into as the divers group and control group, and both groups were measured with Conell medical index(CMI) and transcranial doppler(TCD) and compared. Results The values of V m(68 12±11 23)cm/s and RI(0 61±0 01) in the divers group were significantly higher comparing with V m(55 25±10 21)cm/s and RI(0 53±0 02) in the control group( P <0 01). The scores of M R(9 00±1 75) in the divers group were significantly higher comparing with M R(5 05±1 43) in the control group( P <0 01). Significant correlations were found between the values of V m and RI and the scores of M R in the divers group. Conclusions Neuropsychological changes in the divers were correlated with their decreased cerebral blood flow.