Research Article

Contralesional Cathodal Transcranial Direct Current Stimulation Does Not Enhance Upper Limb Function in Subacute Stroke: A Pilot Randomized Clinical Trial

Table 2

Outcomes assessed before the first session of treatment (Pre), after the last session of treatment (Post), and three months later (Post3m): intention-to-treat analysis, Generalized Estimating Equation model. Median and interquartile ranges are given.

ActiveSham values
OutcomesPrePostPost3mPrePostPost3mGroupTimeInteraction

NIHSStotal6 (3; 13)3 (3; 11)4 (3; 11)5 (4; 10)5 (3; 10)4 (1; 8)0.173<0.001<0.001
NIHSS52 (1; 4)1 (0; 4)1 (1; 4)2 (1; 4)1 (1; 4)1 (1; 4)0.866<0.001<0.001
FMA46 (8; 56.8)51 (16.8; 61.5)52 (16.8; 61.8)22.5 (8.8; 43.5)38.5 (20.5; 55.8)43 (16.8; 57.3)0.015<0.001<0.001
mRS3 (2; 4)3 (2; 4)3 (2; 4)4 (3; 4)3 (3; 3)3 (2; 3)0.6890.0120.910
BI80 (47.5; 95)85 (57.5; 100)92.5 (61.3; 100)65 (47.5; 77.5)77.5 (67.5; 90)85 (75; 100)0.654<0.001<0.001
MASshoulder0 (0; 1)0 (0; 0)0 (0; 0)0 (0; 1)0 (0; 0)0 (0; 0.5)0.7170.0100.176
MAS elbow0 (0; 1.25)0.5 (0; 1)0.5 (0; 1.25)1 (0; 2)1 (0; 2)1 (0; 2)0.2790.5880.975
MAS wrist0.5 (0; 2.25)0 (0; 1)0 (0; 1.25)1 (0.8; 2)1 (0; 2)2 (0; 2)0.1480.0390.296
MAS fingers0.5 (0; 1.25)0 (0; 1)0 (0; 1)1 (0; 1)0 (0; 1)1 (0; 1.3)0.5870.0160.702
MALquantitative1.05 (0; 1.97)2.41 (0; 3.5)2.25 (0; 3.89)0.1 (0; 0.4)0.6 (0; 1.9)0.8 (0; 3.5)0.2610.0870.211
MALqualitative0.89 (0; 1.67)2.16 (0; 3.58)2.41 (0; 3.65)0 (0; 0.2)0.7 (0; 1.3)0.9 (0; 3.1)0.2640.0950.183
MoCA18 (9; 24)19 (10; 23)21 (8; 24)16 (8; 20)20 (12; 23)19 (13; 23)0.728<0.0010.001

tDCS: transcranial direct current stimulation. NIHSS total: National Institutes of Health Stroke Scale total score (0-42). NIHSS5: National Institutes of Health Stroke Scale, motor score (0-5). FMA: Fugl-Meyer Assessment of Motor Recovery after Stroke, upper limb motor score. mRS: Modified Rankin Scale. BI: Barthel Index. MAS: Modified Ashworth Scale. MALqualitative: subscale qualitative of Motor Activity Log. MALquantitative: subscale quantitative of Motor Activity Log. MoCA: Montreal Cognitive Assessment.