Comparison of the different pain assessment scales used in adult patients seen at the Philippine General Hospital rheumatology out-patient clinic

BACKGROUND: Valid and reliable assessment of pain is essential in the management of rheumatologic conditions. Standardized pain assessment scales have been developed and used in clinical trials, but remain underutilized in clinical practice. OBJECTIVE: To evaluate the use of the different pain assessment scales: Numeric Rating Scale (NRS), Verbal Descriptive Scale (VDS),Visual Analog Scale (VAS) and Wong Baker Face Scale (FACES) among adult patients with musculoskeletal pain seen in the Rheumatology Out-Patient Clinic in a tertiary government hospital in Manila, Philippines. METHODS: This is a cross sectional study of adult patients with symptoms of musculoskeletal pain seen in a rheumatology out-patient clinic. The patients answered the different pain assessment scales and ranked them according to ease of use and preference. We checked for correlation of results of the different pain assessment scales using Spearman correlation.      RESULTS: Ninety-four patients are included in this study. Eighty-one percent are females, with mean age of 52 (±SD 14.12) years old. Majority (73%) have low level of education. Forty-one percent have rheumatoid arthritis, 21% have osteoarthritis and 12% have gout. NRS is preferred and ranked easiest to use by 41.5% of patients. FACES is a close second; preferred by 39.4% and considered easy to use by 36.2% VAS ranks last on over-all preference and ease of use. On subgroup analysis, VDS was preferred by male patients while FACES was preferred by those with low educational status. The pain score obtained using NRS was significantly correlated with VDS, VAS, and FACES (p= CONCLUSION: The NRS is a validated tool that is easy to use and preferred by patients. The FACES is a good alternative if the patient has difficulty with the NRS. We recommend the use of these pain scales in clinical practice in the Philippines to standardize the assessment and monitoring of pain among patients with rheumatic conditions

Challenges in the management of concomitant TB arthritis and AVN in a lupus patient with adverse drug reaction to anti-Koch's medications

BACKGROUND: Non traumatic osteonecrosis also known as  avascular necrosis (AVN),and tuberculous arthritis (TB    arthritis)most commonly present as chronic monoarticular conditions. Corticosteroid intake is known to predispose individuals to the development of these two conditions.                       In AVN, corticosteroid remains to be the most common cause that leads to a final  common pathway of disrupting    blood supply to segments of bone causing cell death. In TB arthritis, corticosteroid renders  a patient relatively immunocompromised predisposing to this extrapulmonary infection.                                                                                                                                                          The incidence of tubercular osteonecrosis in a patient with systemic lupus erythematosus is rare. A review of literature only showed one case report of tubercular osteonecrosis diagnosed by aspiration cytology. Since tuberculosis (TB) is a destructive but curable disease, early diagnosis  and  treatment  are essential.OBJECTIVE: To present a case of tubercular osteonecrosis in a patient with systemic lupus erythematosus treated with anti-Koch's regimen and iloprost infusion.CASE: A 27-year old Filipino female who was diagnosed with lupus nephritis and underwent three days  methylprednisolone pulse therapy. Lupus nephritis improved  and  was clinically inactive for two years. She  developed insidious onset of intermittent pain on her left knee, associated with swelling for four months with  subsequent right hip pain of one week duration. MRI of the left knee showed osteonecrosis and arthritis. Radiograph of the right hip showed osteonecrosis. She underwent arthrocentesis of the left knee and the synovial  fluid tested positive for tuberculosis by PCR. We started the patient on quadruple anti-Koch's regimen together with iloprost infusion which afforded clinical improvement.  CONCLUSION: To our knowledge, this is the first reported case of a lupus patient with concomitant polyarticular osteonecrosis complicated by monoarticular tuberculous arthritis. Medical treatment, while it may be complicated by adverse drug events, is effective in symptomatic treatment, but a multidisciplinary approach is suggested for optimal outcome.