[Contribution of dynamic radiographs in atlantoaxial subluxation in rheumatoid arthritis]. / Apport des radiographies dynamiques dans la subluxation atloïdo-axoïdienne au cours de la polyarthrite rhumatoïde.

BACKGROUND: Cervical spine (CS) involvement is common during rheumatoid arthritis (RA) and it is distinguished by its potential gravity. AIM: To determinate the occurrence of atlantoaxial subluxation (AAS) by dynamic incidences X-Ray and to assess its predictive factors. METHODS: Our study included a cohort of 40 patients carrying RA, who fulfilled the American College of Rheumatology criteria, for more than 2 years. All patients had a complete physical and laboratory evaluation. Radiological evaluation included CS radiographs in anteroposterior, lateral, and lateral in full flexion and extension views. RESULTS: The occurrence of CS involvement was about 47.5% by XRay dominated by AAS which found in 42,5% of the cases. Among AAS, anterior AAS was the most frequent with a prevalence of 22,5% followed by lateral AAS in 12,5% then vertical and rotatory AAS in 10% of cases each one and posterior AAS in 2,5% of the cases. Comparison between patients with and without CS involvement indicated the presence of two predictive factors: the sharp modified score and the C - reactive protein (p=0.002 and p=0.004 respectively). CONCLUSION: Our study demonstrated that AAS is frequent in RA particularly in active forms with structural lesions. AAS can be asymptomatic, for this reason systematic diagnosis by X-Ray with dynamic views is important.

[Survival prognosis factors in multiple myeloma]. / Les facteurs pronostiques de survie au cours du myélome multiple.

BACKGROUND: Outcome in multiple myeloma (MM) is very heterogeneous in survival and therapeutic response, constantly fatale despite her therapy progress. AIM: To determine the prognostic factors and survival in MM. METHODS: We carried out a transversal study of 100 patients in the rheumatology department of hospital Monastir between 1991 and 2010. In each case we determinate the survival delay and also the clinical, laboratory, radiological data at diagnosis and therapeutic response. RESULTS: The mean age was 64.4 years and sex ratio H/F=1.27. MM is IgG type in 57%, IgA in 28% and light chain in 11% of cases. The survival mean is 34 months and the survival median is 26 months. Univariate analysis showed five prognostic factors: age (p = 0.016), anaemia (p=0.033), ß2 microglobulin ( p < 0.0001) , CRP (p = 0.0001), albumin (p = 0.002), LDH (p=0.001), plasmocyte proliferation rate (p=0.003) and rapidly therapeutic response (p <0.001). ß2 microgrobulin-CRP classification and the international staging system (ISS) presented a high prognosis signification (p < 0.0001). Multivariate analysis demonstrated two prognostic factors: ß2 microglobulin and CRP. CONCLUSIONS: Our study showed that MM presented many prognostic factors, which easily realised in daly practice. These prognostic factors are essentially to evaluate prognosis and select patients for appropriate therapeutic indication. ß2 microgrobulin- CRP classification and the international staging system (ISS) are more predictive than Durie Salmon classification in MM survival.