White Matter Lesions Volume and Motor Performances in the Elderly

被引:99
作者
Soumare, Aicha [1 ,2 ]
Elbaz, Alexis [1 ,2 ]
Zhu, Yicheng [1 ,2 ,3 ,4 ]
Maillard, Pauline [5 ,6 ]
Crivello, Fabrice [5 ,6 ]
Tavernier, Beatrice [7 ]
Dufouil, Carole [1 ,2 ]
Mazoyer, Bernard [5 ,6 ,8 ,9 ]
Tzourio, Christophe [1 ,2 ]
机构
[1] Hop La Pitie Salpetriere, INSERM, U708, F-75651 Paris 13, France
[2] Univ Paris 06, Paris, France
[3] Hop Lariboisiere, Serv Neurol, F-75475 Paris, France
[4] Beijing Union Med Coll Hosp, Dept Neurol, Beijing, Peoples R China
[5] CNRS, CEA, UMR 6232, Grp Imagerie Neurofonct, Caen, France
[6] Univ Caen Basse Normandie, Caen, France
[7] CHU Dijon, Dept Geriatr, Dijon, France
[8] CHU Caen, F-14000 Caen, France
[9] Inst Univ France, Paris, France
关键词
FUNCTIONING OLDER-ADULTS; PHYSICAL PERFORMANCE; HYPERINTENSITIES; ABNORMALITIES; PEOPLE; GAIT; BALANCE; SPEED; RISK; MRI;
D O I
10.1002/ana.21674
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
Objectives: To investigate the cross-sectional and longitudinal associations between performance-based measures of motor function and volume of white matter lesions (WMLs), and to examine the influence of the localization of these lesions. Methods: At baseline, motor performances (maximum walking speed, Tinetti gait and balance subscales) were assessed in 1,702 subjects aged 80 years or younger from the Dijon (France), France center of the Three-City study. Volumes of WMLs lesions (total, periventricular, deep) were measured using an automated method of tissue segmentation and quantification of lesion size. At 8-year follow-up, walking speed was evaluated in 1,086 subjects. Results: At baseline, mean and 95% confidence interval (CI) walking speed was lower in subjects with total volumes of WMLs >= 90th percentile 0.50 [1.45-1-55] m/s) than in subjects with lower volumes (1.56 [1-55-1-58] m/s; p = 0.004). Baseline total volumes of WMLs above the 90th percentile predicted walking speed decline during follow-up (odds ratio [95% Cl] for having the greatest walking speed decline = 2.3 [1.3-4.1], p = 0.006). Moreover, high volumes of periventricular but not deep WMLs were associated with slower walking speed at baseline (p = 0.005) and over time (p = 0.001), and with lower Tinetti gait subscore (p = 0.02). Interpretation: Our study shows a cross-sectional and longitudinal association between high total volumes of WMLS, in particular volumes above the 90th percentile, and impaired mobility. These associations were independent of several confounders, including cognition, and were mainly accounted for by Volumes of periventricular WMLs. These findings support the hypothesis of a vascular contribution to motor decline in the elderly.
引用
收藏
页码:706 / 715
页数:10
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