Thorough assessment of the effectiveness of belimumab in a large Spanish multicenter cohort of systemic lupus erythematosus patients.

Objectives: To provide an overview on the current use of belimumab (BLM) in SLE patients in clinical practice and to examine its efficacy in terms of standardized outcomes, drug survival, as well as patient and safety profiles.

Methods: A longitudinal retrospective multicentre cohort including SLE patients treated with BLM at 18 Spanish centers. Data was collected upon initiation of BLM, at 6 and 12 months after initiation, and at the last recorded visit.

Clinical spectrum time course in non-Asian patients positive for anti-MDA5 antibodies.

Objectives: To define the clinical spectrum time-course and prognosis of non-Asian patients positive for anti-MDA5 antibodies.

Methods: We conducted a multicentre, international, retrospective cohort study.

Results: 149 anti-MDA5 positive patients (median onset age 53 years, median disease duration 18 months), mainly females (100, 67%), were included.

Risk of Severe COVID-19 Infection in Patients With Inflammatory Rheumatic Diseases.

Objective: To describe the cohort of patients with inflammatory rheumatic diseases (IRD) hospitalized due to SARS-CoV-2 infection in the Ramón y Cajal Hospital, and to determine the increased risk of severe coronavirus disease 2019 (COVID-19) in patients with no IRD.

Methods: This is a retrospective single-center observational study of patients with IRD actively monitored in the Department of Rheumatology who were hospitalized due to COVID-19.

Results: Forty-one (1.

Rheumatoid meningitis as a complication of long-standing rheumatoid arthritis: a case treated with rituximab.

Rheumatoid meningitis is a rare complication of long-standing rheumatoid arthritis. We present the case of a 39-year-old Bolivian woman with a history of seropositive rheumatoid arthritis of 12 years of evolution without extra-articular manifestations that develops a severe headache with vomiting. The diagnosis of rheumatoid meningitis was performed based on clinical history, blood count and biochemistry results, cerebrospinal fluid analysis and cranial magnetic resonance imaging findings.

Determination of serum free light chains as a marker of systemic lupus flare.

Introduction: The aim of this study was to explore the usefulness of the determination of free light chains (FLC) in serum as a biomarker of flare in patients with systemic lupus erythematosus (SLE) and to analyze the differences in their discriminatory capacity with complement C3 and C4.

Methods: This was a prospective cohort study. The definition of flare was based on the Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) Flare Index.

Influence of Antisynthetase Antibodies Specificities on Antisynthetase Syndrome Clinical Spectrum Time Course.

Antisynthetase syndrome (ASSD) is a rare clinical condition that is characterized by the occurrence of a classic clinical triad, encompassing myositis, arthritis, and interstitial lung disease (ILD), along with specific autoantibodies that are addressed to different aminoacyl tRNA synthetases (ARS). Until now, it has been unknown whether the presence of a different ARS might affect the clinical presentation, evolution, and outcome of ASSD. In this study, we retrospectively recorded the time of onset, characteristics, clustering of triad findings, and survival of 828 ASSD patients (593 anti-Jo1, 95 anti-PL7, 84 anti-PL12, 38 anti-EJ, and 18 anti-OJ), referring to AENEAS (American and European NEtwork of Antisynthetase Syndrome) collaborative group's cohort.

Timing of onset affects arthritis presentation pattern in antisyntethase syndrome.

Objectives: To evaluate if the timing of appearance with respect to disease onset may influence the arthritis presentation pattern in antisynthetase syndrome (ASSD).

Methods: The patients were selected from a retrospective large international cohort of ASSD patients regularly followed-up in centres referring to AENEAS collaborative group. Patients were eligible if they had an antisynthetase antibody testing positive in at least two determinations along with arthritis occurring either at ASSD onset (Group 1) or during the course of the disease (Group 2).

Specialized rheumatology clinic in an emergency department: A year of the rheumatology and musculoskeletal emergencies clinic (RMSEC) experience.

Background: In October 2013, the emergency department of our hospital started up a rheumatology and musculoskeletal emergencies clinic (RMSEC) with the participation of three specialists in Rheumatology. The purpose of this study was to describe the experience gained in the first year since the beginning of our activity.

Method: A descriptive study of healthcare activity of the RMSEC throughout its first year of operation was performed.

[Application of a cooperative learning approach for training residents in the emergency department and comparison with a traditional approach].

Objectives: To analyze the benefits of using a cooperative learning (CL) model to teach hospital residents doing rotations in the emergency department and to compare the CL approach to traditional training.

Material And Methods: Two training sessions on the same content were given by 2 expert instructors. A traditional method of instruction was used in one of the sessions and the CL model was used in the other.

Multifocal osteonecrosis associated with human immunodeficiency virus infection.

The osteonecrosis has emerged in the last years as a potentially disabling osteoarticular complication in HIV-infected patients. There is a high prevalence of traditional risk factors for osteonecrosis development in these patients, but they also have factors associated to HIV infection in itself and the high activity antiretroviral therapy. The HIV-associated osteonecrosis often affects the hips, with a trend to bilaterally, but concomitant affection of 3 or more locations (multifocal osteonecrosis) has been infrequently reported.