RESUMEN
Spasticity and its related symptoms of spasms, pain, sleep disturbance and bladder dysfunction are common in persons with multiple sclerosis (MS) and may be interconnected through a common pathophysiology and/or may trigger and worsen each other. Tetrahydrocannabinol-cannabidiol (nabiximols) oromucosal spray (Sativex) is an add-on treatment for adults with moderate-to-severe MS spasticity who fail to respond adequately to conventional oral medications. There is evidence that nabiximols can ameliorate spasticity-associated symptoms irrespective of its effect on spasticity. This case series describes 12 adults with MS spasticity who were evaluated for symptom evolution before and during adjunctive nabiximols treatment. Nabiximols reduced spasticity severity in 11 patients, of whom 8 had a clinically important ≥30% improvement in 0-10 Numeric Rating Scale scores during treatment. In 7 patients who reported spasms, severity was reduced or spasms were absent/unnoticeable during nabiximols treatment. Walking distance was improved in 8 patients. Pain severity was reduced in 11 patients, and sleep disorder was completely resolved in 3 patients and improved in 8. Bladder dysfunction was improved in 6 of 7 patients with baseline symptoms. Two patients arguably should have discontinued nabiximols sooner: one had a limited response and experienced adverse effects throughout 6 months of treatment; the other was a non-responder who suffered a fall due to dizziness after 7 weeks of use. Overall, this case series shows, at an individual patient level, that the benefits of nabiximols extend beyond spasticity to include spasticity-related symptoms.
RESUMEN
BACKGROUND: Patients with Multiple Sclerosis (MS) have an increased risk of suffering from mental and neuropsychiatric symptoms. So far, a fundamental problem in the clinical care of MS patients is that these symptoms are underdiagnosed and, as a consequence, often remain untreated. Present assessment tools have not been developed to be applied in patients with MS. This study aims to develop and validate a new questionnaire to identify disease-related mental symptoms in MS patients. METHODS: A questionnaire has been developed by including the following subscales: social and emotional health problems, anxiety, and depression. To evaluate test quality and internal consistency, an item analysis has been conducted. After matching MS patients and control subjects on age and gender, we conducted group comparisons, a Receiver Operating Characteristic (ROC) Curve analysis and a binary logistic regression model. RESULTS: In total, 314 MS patients and 100 matched control subjects were analysed. After performed item analysis, the questionnaire revealed an excellent internal consistency (α=0.94). Compared to control subjects, MS patients showed significant mental health problems in all three dimensions. In comparison to the subscales, the dimension of social and emotional health problems revealed the highest accuracy (AUC = 0.75; d = 0.948) and turned out to be the only scale that reliably differentiated between the groups. CONCLUSIONS: MeSyMS constitutes a valid screening instrument to detect mental symptoms in MS. Social and emotional health problems turned out to be the most important aspect when identifying disease-related mental health symptoms in MS.
