Cortical Silent Period in Patients with Complex Regional Pain Syndrome after Conditioning Peripheral Repetitive Magnet Stimulation

In a pilot study, 13 patients suffering from complex regional pain syndrome type I (CRPS I) were stimulated with a peripherally applied repetitive magnetic stimulation (rMS). The goal of this rMS was therapeutic. We used high frequencies and suprathreshold intensities. With the idea of inducing a proprioceptive input to motor cortical areas, we measured the motor evoked potential (MEP), as well as the cortical silent period (CSP) before and after rMS. These data were compared to those from healthy subjects serving as controls. A Magstim 200 was used to induce MEP and CSP over the corresponding motor cortex, whil…