Pain in Portuguese patients with multiple sclerosis.

• Main Authors: Daniela eSeixas, Maria José eSá, Vasco eGalhardo, Joana eGuimarães, Deolinda eLima
• Format: Article
• Language: English
• Published: Frontiers Media S.A. 2011-03-01
• Series: Frontiers in Neurology
• Subjects: Epidemiology; Europe; Multiple Sclerosis; Pain; quality-of-life
• Online Access: http://journal.frontiersin.org/Journal/10.3389/fneur.2011.00020/full

Early reports often ignored pain as an important symptom in multiple sclerosis (MS). Pain prevalence figures in MS from European countries other than Portugal range between 40% and 65%. To our knowledge there is no published data in English on pain in MS in Portugal. We describe the demographic and clinical characteristics, with an emphasis on pain, of 85 MS patients followed-up in a Portuguese hospital, contributing to pain epidemiology in MS. Patients were interviewed sequentially after their regular appointments at the MS clinic; patients with pain completed The Brief Pain Inventory and The McGill Pain Questionnaire (MPQ). The prevalence of pain found was 34%. Headache and back pain were the most common anatomical sites described, followed by upper and lower limbs. Intensity of pain in an 11-point scale was, for the maximum pain intensity 6.7±1.8, for the minimum pain intensity 2.2±2.0, for the mean pain intensity 4.5±1.5 and for the actual pain intensity 2.4±2.9. Pain interfered significantly with general activity, mood, work, social relations and enjoyment of life. All MS patients with pain employed words from both the sensory and affective categories of the MPQ to describe it. Patient pain descriptions’ included the word hot-burning in 59% of the cases, common in the report of central pain, but neuropathic pain medications were only used by 10% of them. Pain is an important symptom in Portuguese patients with MS, not only because of the high prevalence found, concordant with other European countries, but also because of its interference with quality-of-life.