TY - JOUR
T1 - Somatosensory evoked potentials reflect the upper limb motor performance in multiple sclerosis
AU - Nociti, Viviana
AU - Batocchi, Anna Paola
AU - Bartalini, Simona
AU - Caggiula, Marcella
AU - Patti, Francesco
AU - Profice, Paolo
AU - Quattrone, Aldo
AU - Tonali, Pietro
AU - Ulivelli, Monica
AU - Valentino, Paola
AU - Virdis, Daniela
AU - Zappia, Mario
AU - Padua, Luca
PY - 2008/10/15
Y1 - 2008/10/15
N2 - Objective: The aim of this multicentric study was to multidimensionally evaluate the relationship among somatosensory evoked potentials (SEPs) parameters, patient's perspective and clinical measures of the upper limb impairment in patients with multiple sclerosis (MS). Methods: We consecutively enrolled 39 MS patients. For median nerve SEPs we acquired the N9, P14, N20 responses and the N9-P14 and P14-N20 interpeak latencies on the dominant side. We also used a validated patient-oriented questionnaire (Disabilities of the Arm, Shoulder and Hand - DASH) and a test of dexterity quantification as the 9-Hole Peg Test (9-HPT). Results: A significant longer time to complete the 9-HPT (p <0.00006) was observed in patients with abnormal SEPs. Patients with undetectable N20 or P14 responses performed the 9-HPT in a significant longer time than patients with detectable responses (p <0.0006 and p <0.001 respectively). Concerning the perspective of patient (evaluated with the DASH questionnaire) significant differences in patients with undetectable P14 response (p <0.01) were observed. Conclusions: Our data provide further information useful for interpretation of SEPs results, being the median nerve SEPs related to the upper limb performance in MS patients. Significance: These data increase the significance of SEPs both in clinical practice and in experimental studies in MS.
AB - Objective: The aim of this multicentric study was to multidimensionally evaluate the relationship among somatosensory evoked potentials (SEPs) parameters, patient's perspective and clinical measures of the upper limb impairment in patients with multiple sclerosis (MS). Methods: We consecutively enrolled 39 MS patients. For median nerve SEPs we acquired the N9, P14, N20 responses and the N9-P14 and P14-N20 interpeak latencies on the dominant side. We also used a validated patient-oriented questionnaire (Disabilities of the Arm, Shoulder and Hand - DASH) and a test of dexterity quantification as the 9-Hole Peg Test (9-HPT). Results: A significant longer time to complete the 9-HPT (p <0.00006) was observed in patients with abnormal SEPs. Patients with undetectable N20 or P14 responses performed the 9-HPT in a significant longer time than patients with detectable responses (p <0.0006 and p <0.001 respectively). Concerning the perspective of patient (evaluated with the DASH questionnaire) significant differences in patients with undetectable P14 response (p <0.01) were observed. Conclusions: Our data provide further information useful for interpretation of SEPs results, being the median nerve SEPs related to the upper limb performance in MS patients. Significance: These data increase the significance of SEPs both in clinical practice and in experimental studies in MS.
KW - 9-Hole Peg Test
KW - Ashworth scale
KW - DASH
KW - Multiple sclerosis
KW - Somatosensory evoked potentials
KW - Upper limb performance
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U2 - 10.1016/j.jns.2008.06.030
DO - 10.1016/j.jns.2008.06.030
M3 - Article
C2 - 18684472
AN - SCOPUS:50049132858
VL - 273
SP - 99
EP - 102
JO - Journal of the Neurological Sciences
JF - Journal of the Neurological Sciences
SN - 0022-510X
IS - 1-2
ER -