Interstitial lung disease and myositis-specific and associated autoantibodies: Clinical manifestations, survival and the performance of the new ATS/ERS criteria for interstitial pneumonia with autoimmune features (IPAF).

OBJECTIVE: to describe the clinical manifestations and survival of patients with ILD and myositis-specific and associated autoantibodies, and to evaluate the performance of the new ATS/ERS classification criteria for IPAF. PATIENTS AND METHODS: Patients with ILD and positive in at least one of the following autoantibodies: anti-Jo-1, anti-Ej, anti-PL7, anti-PL 12, anti-PM/SCL 75 and anti-PM/SCL100 were included. Patients were separated into three groups according to their autoantibody profile: 1. Jo-1 positive patients, 2. Non-Jo-1 antisynthetase autoantibody positive patients, and 3. PM/SCL positive patients. Relevant clinical characteristics were registered. Patients were evaluated had they fulfilled Bohan and Peter's criteria (BPC) for inflammatory myopathies. We evaluated the performance of the IPAF ATS/ERS proposal to classify as such the patients that did not fulfilled BPC, and evaluated whether IPAF patients had a worse survival that BPC patients. RESULTS: Sixty-eight patients were included. Jo-1 was the most frequent autoantibody (65%), followed by non Jo1 anti-synthetase autoantibodies (31%). Non-Jo1 patients had lower Creatin Kinase serum levels at the baseline and less frequency of arthritis. Only 50% of patients fulfilled BPC. All patients not complying with BPC did comply with IPAF criteria. There was no difference in survival between IPAF and BPC patients. Anti Jo-1 positive was associated to survival and the extent of lung inflammation was associated to mortality. CONCLUSIONS: Patients differ in clinical manifestations according to the autoantibody profile. All patients not complying with BPC did comply with the new IPAF criteria. There was no difference in survival between BPC and IPAF patients. Jo-1 patients had a better survival. Extent of lung inflammation was associate to mortality.

Prognostic factors in a cohort of antisynthetase syndrome (ASS): serologic profile is associated with mortality in patients with interstitial lung disease (ILD).

The objectives of the present study were to compare the survival function of antisynthetase syndrome (ASS) Jo1-positive patients with ASS non-Jo1 patients, all with interstitial lung disease (ILD), and to evaluate other factors such as the extension of pulmonary disease and the time between the onset of symptoms and diagnosis and its association to survival in a cohort of ASS patients. Patients with ASS, all with ILD, were included. At the baseline, pulmonary function tests were realized and a high-resolution chest tomography was obtained; lung inflammation and fibrosis were measured with the Goh score and the Kazerooni index. The following autoantibodies were measured: Jo1, Ej, Oj, PL7, and PL12. Patients had to be positive for one of them in order to be included in the study. The survival function was estimated and compared with the log rank test, and the hazard ratio (HR) was estimated using Cox regression procedure. Forty-three patients were included, of which six patients died (14 %). Patients who died were different in comparison with survivors as regards the frequency of anti-Jo1 positivity: Survivors had anti-Jo1 autoantibodies more frequently (86 %) than patients who died (50 %). The univariate Cox regression analysis identified four variables associated with survival: Jo1 status, arthritis, extent of ground glass, and consolidation (inflammation) in high-resolution computed tomography (HRCT) and baseline forced vital capacity. The serological status of patients (Jo1-positive vs non-Jo1), the extent of lung inflammation in the HRCT scan, a low forced vital capacity, and arthritis are associated with survival in ASS patients.

Embolismo por polimetil-metacrilato posterior a inyección subcutánea en región glútea: a propósito de un caso / Polymethyl-methacrylate embolism after subcutaneous injection in gluteal region: report of a case

El polimetil-metacrilato es un polímero de alta resistencia al impacto, ampliamente utilizado en diferentes campos de la medicina, sin embargo, aún no está clara su indicación como relleno glúteo. A pesar de su aparente inocuidad, se han presentado complicaciones durante su uso como granulomas y nódulos palpables. Se han reportado casos de embolismo pulmonar por polimetil-metacrilato posterior a vertebroplastias. Sin embargo, no se encontró reporte bibliográfico de casos de embolismo pulmonar con su uso en procedimientos estéticos. Presentamos caso de paciente femenino de 31 años de edad, quien 4 horas luego de la inyección de 500 cm3 de polimetil-metacrilato en cada región glútea, presenta disnea en reposo de aparición súbita con tos seca y palpitaciones, disminución de agudeza visual y petequias generalizadas. Se diagnostica probable embolismo pulmonar por polimetil-metacrilato y retinopatía de Purtscher. Existe similitud clínica e imaginología del caso en estudio con embolismo por silicone, y las imágenes del fondo de ojo semejan la obstrucción de pequeñas arteriolas retinianas compatibles con este diagnóstico. Se sugieren nuevas investigaciones en el uso de polimetil-metacrilato como procedimiento estético en pro de la seguridad y en beneficio de los pacientes

Polymethyl-methacrylate is a high impact resistant polymer, widely used in different medicine fields, however its indication in buttock implants is still not clear. Even though its apparent innocuity, it has presented complications like granulomas and palpable nodules. There have been reported cases of pulmonary embolism caused by polimetil-metacrilato secondary to vertebroplasties. However, there have been no bibliographic cases of pulmonary embolism due to its use in aesthetic procedures. We present a case of a woman patient of 31 years old, who 4 hours after 500 cc injection of polymethyl- Methacrylate in each buttock, presents rest dyspnea with abrupt dry cough and palpitations, reduction in visual acuity and generalized petechiae. It is diagnosed probable pulmonary embolism by polimetil-metacrilato and Purtscher retinopathy. There is a clinical and imaginological similitude between this case and silicone embolism and the images of fondoscopy are similar to those of small retinian arteriole obstruction compatible with the diagnosis. Thereby, it is suggested new investigations in the use of polymethyl-methacrylate as esthetic procedure in favor of the patient’s security and benefit