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Objective: In Brazil, telemedicine was allowed as an exception during the coronavirus disease (COVID-19) pandemic. Despite its recognized value and availability, telemedicine is not universally used, suggesting that some barriers prevent its adoption and acceptance within the community. This study aims to describe the implementation of a low-cost telemedicine service in a pediatric hospital in Brazil. Method: Retrospective descriptive study reporting the first three months (April to June 2020) of the experience of implementing a low-cost telemedicine emergency care program in a public tertiary hospital. The service was available to patients up to 18 years of age enrolled in this hospital. A tool for assessing the severity of the patient was developed, the aim of standardizing the procedure, while maintaining quality and safety. Guardian’s satisfaction was assessed with a questionnaire sent after teleconsultations. Results: 255 teleconsultations were carried out with 140 different patients. Of the total consultations, 182 were from 99 patients that had performed the Real-Time Polymerase Chain Reaction (RT-PCR) test for the new coronavirus (SARS-Cov-2) or had direct contact with a person known to be positive for COVID-19. Only 26 (14%) were referred to an in-person consultation. No deaths, adverse events or delayed diagnosis were recorded. 86% of the patients who answered the satisfaction questionnaire were satisfied and 92% would use telemedicine again. Conclusion: This study presents an innovative implementation of a telemedicine program in a public and exclusively pediatric tertiary service, serving as a reference for future implementation in other public services in Brazil and developing countries. [ABSTRACT FROM AUTHOR]

Objective: To determine the effect of a training program using simulation-based mastery learning on the performance of residents in pediatric intubations with videolaryngoscopy. Method: Retrospective cohort study carried out in a tertiary pediatric hospital between July 2016 and June 2018 evaluating a database that included the performance of residents before and after training, as well as the outcome of tracheal intubations. A total of 59 pediatric residents were evaluated in the pre-training with a skills' checklist in the scenario with an intubation simulator; subsequently, they were trained individually using a simulator and deliberate practice in the department itself. After training, the residents were expected to have a minimum passing grade (90/100) in a simulated scenario. The success of the first attempted intubation, use of videolaryngoscopy, and complications in patients older than 1 year of age during the study period were also recorded in clinical practice. Results: Before training, the mean grade was 77.5/100 (SD 15.2), with only 23.7% (14/59) of residents reaching the minimum passing grade of 90/100. After training, 100% of the residents reached the grade, with an average of 94.9/100 (SD 3.2), p < 0.01, with only 5.1% (3/59) needing more practice time than that initially allocated. The success rate in the first attempt at intubation in the emergency department with videolaryngoscopy was 77.8% (21/27). The rate of adverse events associated with intubations was 26% (7/27), representing a serious event. Conclusions: Simulation-based mastery learning increased residents' skills related to intubation and allowed safe tracheal intubations with video laryngoscopy. [ABSTRACT FROM AUTHOR]

Copyright of Jornal de Pediatria is the property of Sociedade Brasileira de Pediatria and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Jornal de Pediatria is the property of Sociedade Brasileira de Pediatria and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective: The objective of this study is to evaluate the influence of exposure to air pollutants and inhalable environmental elements during pregnancy and after birth until childhood-onset systemic lupus erythematosus(cSLE) diagnosis. Methods: This case-control study comprised 30 cSLE patients and 86 healthy controls living in the Sao Paulo metropolitan area. A structured and reliable questionnaire (kappa index for test-retest was 0.78) assessed demographic data, gestational and perinatal-related-factors, and exposure to inhalable elements during pregnancy and after birth (occupational exposure to inhalable particles and/or volatile vapor, and/or tobacco, as well as, the presence of industrial activities or gas stations near the home/work/daycare/school). Tropospheric pollutants included: particulate matter (PM10), sulfur dioxide (SO2), nitrogen dioxide (NO2), ozone (O3) and carbon monoxide (CO). Results: The median current age was similar between cSLE patients and healthy controls [16.0 (5-21) versus 15.0 (4-21) years, p=.32], likewise the frequency of female gender (87% versus 78%, p=.43). The frequencies of prematurity (30% versus 6%, p=.001), maternal occupational exposure during pregnancy (59% versus 12%, p<.001), exposure to volatile vapor (48% versus 8%, p<.001) and fetal smoking (maternal and/or secondhand) (37% versus 19%, p=.008) were significantly higher in cSLE patients compared with controls. In a multivariate analysis regarding the gestation period, maternal occupational exposure (OR 13.5, 95% CI 2.5-72.4, p=.002), fetal smoking (OR 8.6, 95%CI 1.6-47, p=.013) and prematurity (OR 15.8, 95%CI 1.9-135.3, p=.012) remained risk factors for cSLE development. Furthermore, exposure to secondhand smoking during pregnancy and after birth (OR 9.1, 95%CI 1.8-42.1, p=.002) was also a risk factor for cSLE development. Conclusions: Prematurity and environmental factors were risk factors for developing cSLE. [ABSTRACT FROM AUTHOR]

DKA is a severe metabolic derangement characterized by dehydration, loss of electrolytes, hyperglycemia, hyperketonemia, acidosis and progressive loss of consciousness that results from severe insulin deficiency combined with the effects of increased levels of counterregulatory hormones (catecholamines, glucagon, cortisol, growth hormone). The biochemical criteria for diagnosis are: blood glucose > 200 mg/dl, venous pH <7.3 or bicarbonate <15 mEq/L, ketonemia >3 mmol/L and presence of ketonuria. A patient with DKA must be managed in an emergency ward by an experienced staff or in an intensive care unit (ICU), in order to provide an intensive monitoring of the vital and neurological signs, and of the patient's clinical and biochemical response to treatment. DKA treatment guidelines include: restoration of circulating volume and electrolyte replacement; correction of insulin deficiency aiming at the resolution of metabolic acidosis and ketosis; reduction of risk of cerebral edema; avoidance of other complications of therapy (hypoglycemia, hypokalemia, hyperkalemia, hyperchloremic acidosis); identification and treatment of precipitating events. In Brazil, there are few pediatric ICU beds in public hospitals, so an alternative protocol was designed to abbreviate the time on intravenous infusion lines in order to facilitate DKA management in general emergency wards. The main differences between this protocol and the international guidelines are: intravenous fluid will be stopped when oral fluids are well tolerated and total deficit will be replaced orally; if potassium analysis still indicate need for replacement, it will be given orally; subcutaneous rapid-acting insulin analog is administered at 0.15 U/kg dose every 2-3 hours until resolution of metabolic acidosis; approximately 12 hours after treatment initiation, intermediate-acting (NPH) insulin is initiated at the dose of 0.6-1 U/kg/day, and it will be lowered to 0.4-0.7 U/kg/day at discharge from hospital. [ABSTRACT FROM AUTHOR]

Objective: To look for technical simplification and economic efficiency in the treatment of pediatric diabetic ketoacidosis (DKA) with subcutaneous use of the fast-acting insulin analog (lispro) and compare its use with regular intravenous insulin treatment.Research Design and Methods: In this controlled clinical trial from June 2001 to June 2003, we randomized 60 episodes of DKA with a blood glucose level > or = 16.6 mmol/l (300 mg/dl), venous pH <7.3 and/or bicarbonate <15 mmol/l, or ketonuria greater than + +. Of the 60 episodes, 30 were treated with subcutaneous lispro (0.15 units/kg) given every 2 h (lispro group) and the other 30 cases received continuous intravenous regular insulin (0.1 unit x kg(-1) x h(-1); CIRI group). Volume deficit was repaired with 10-ml/kg aliquots of 0.9% sodium chloride. Laboratory monitoring included hourly bedside capillary glucose, venous blood gas, beta-hydroxybutyrate, and electrolytes. Plasma blood glucose levels were measured on admission, 2 h after admission, when capillary blood glucose reached < or = 13.8 mmol/l (250 mg/dl), and 6, 12, and 24 h thereafter.Results: Capillary glucose levels decreased by 2.9 and 2.6 mmol x l(-1) x h(-1) in the lispro and CIRI groups, respectively, but blood glucose fluctuated at different time intervals. In the CIRI group, metabolic acidosis and ketosis resolved in the first 6-h period after capillary glucose reached 13.8 mmol/l, whereas in the lispro group, they resolved in the next 6-h interval; however, both groups met DKA recovery criteria without complications.Conclusions: DKA treatment with a subcutaneous fast-acting insulin analog represents a cost-effective and technically simplified procedure that precludes intensive care unit admission. [ABSTRACT FROM AUTHOR]

OBJECTIVE -- To look for technical simplification and economic efficiency in the treatment of pediatric diabetic ketoacidosis (DKA) with subcutaneous use of the fast-acting insulin analog (lispro) and compare its use with regular intravenous insulin treatment. RESEARCH DESIGN AND METHODS -- In this controlled clinical trial from June 2001 to June 2003, we randomized 60 episodes of DKA with a blood glucose level ≥16.6 mmol/l (300 mg/dl), venous pH <7.3 and/or bicarbonate <15 mmol/l, or ketonuria greater than + +. Of the 60 episodes, 30 were treated with subcutaneous lispro (0.15 units/kg) given every 2 h (lispro group) and the other 30 cases received continuous intravenous regular insulin (0.1 unit ⋅ kg[sup -1] ⋅ h[sup -1]; CIRI group). Volume deficit was repaired with 10-ml/kg aliquots of 0.9% sodium chloride. Laboratory monitoring included hourly bedside capillary glucose, venous blood gas, β-hydroxybutyrate, and electrolytes. Plasma blood glucose levels were measured on admission, 2 h after admission, when capillary blood glucose reached ≤13.8 mmol/l (250 mg/dl), and 6, 12, and 24 h thereafter. RESULTS -- Capillary glucose levels decreased by 2.9 and 2.6 mmol ⋅ 1[sup -1] ⋅ h[sup -1] in the lispro and CIRI groups, respectively, but blood glucose fluctuated at different time intervals. In the CIRI group, metabolic acidosis and ketosis resolved in the first 6-h period after capillary glucose reached 13.8 mmol/l, whereas in the lispro group, they resolved in the next 6-h interval; however, both groups met DKA recovery criteria without complications. CONCLUSIONS -- DKA treatment with a subcutaneous fast-acting insulin analog represents a cost-effective and technically simplified procedure that precludes intensive care unit admission. [ABSTRACT FROM AUTHOR]

Objective: To evaluate the influence of environmental factors and prematurity relating to juvenile dermatomyositis (JDM), its course and refractoriness to treatment., Methods: A case-control study with 35 patients followed up at a tertiary hospital and 124 healthy controls, all residents of São Paulo. Patients were classified according to monocyclic, polycyclic or chronic disease courses and refractoriness to treatment. The daily concentrations of pollutants (inhalable particulate matter-PM 10 , sulfur dioxide-SO 2 , nitrogen dioxide-NO 2 , ozone-O 3 and carbon monoxide-CO) were provided by the Environmental Company of São Paulo. Data from the population were obtained through a questionnaire., Results: Fifteen patients had monocyclic courses, and 19 polycyclic/chronic courses. Eighteen patients were refractory to treatment. Maternal occupational exposure to inhalable agents (OR = 17.88; IC 95% 2.15-148.16, p = 0.01) and exposure to O 3 in the fifth year of life (third tertile > 86.28µg/m 3 ; OR = 6.53, IC95% 1.60-26.77, p = 0.01) were risk factors for JDM in the multivariate logistic regression model. The presence of a factory/quarry at a distance farther than 200 meters from daycare/school (OR = 0.22; IC 95% 0.06-0.77; p = 0.02) was a protective factor in the same analysis. Prematurity, exposure to air pollutants/cigarette smoke/sources of inhalable pollutants in the mother's places of residence and work during the gestational period were not associated with JDM. Prematurity, maternal exposure to occupational pollutants during pregnancy as well as patient's exposure to ground-level pollutants up to the fifth year of life were not associated with disease course and treatment refractoriness., Conclusion: Risk factors for JDM were maternal occupational exposure and exposure to O 3 in the fifth year of life., (© 2024. The Author(s).)

Purpose: Respiratory distress due to lower respiratory illnesses is a leading cause of death in children. Early recognition of high-risk populations is critical for the allocation of adequate resources. Our goal was to assess whether the lung ultrasound (US) score obtained at admission in children with respiratory distress predicts the need for escalated care., Methods: This prospective study included 0-18-year-old patients with respiratory distress admitted to three emergency departments in the state of Sao Paulo, Brazil, between July 2019 and September 2021. The enrolled patients underwent lung US performed by a pediatric emergency physician within two hours of arrival. Lung ultrasound scores ranging from 0 to 36 were computed. The primary outcome was the need for high-flow nasal cannula (HFNC), noninvasive ventilation (NIV), or mechanical ventilation within 24 h., Results: A total of 103 patients were included. The diagnoses included wheezing (33%), bronchiolitis (27%), pneumonia (16%), asthma (9%), and miscellaneous (16%). Thirty-five patients (34%) required escalated care and had a higher lung ultrasound score: median 13 (0-34) vs 2 (0-21), p < 0.0001; area under the curve (AUC): 0.81 (95% confidence interval [CI]: 0.71-0.90). The best cut-off score derived from Youden's index was seven (sensitivity: 71.4%; specificity: 79.4%; odds ratio (OR): 9.6 [95% CI: 3.8-24.7]). A lung US score above 12 was highly specific and had a positive likelihood ratio of 8.74 (95% CI:3.21-23.86)., Conclusion: An elevated lung US score measured in the first assessment of children with any type of respiratory distress was predictive of severity as defined by the need for escalated care with HFNC, NIV, or mechanical ventilation., Competing Interests: Declaration of Competing Interest The authors have no conflicts of interest relevant to this article to disclose., (Copyright © 2023 Elsevier Inc. All rights reserved.)

Objective: In Brazil, telemedicine was allowed as an exception during the coronavirus disease (COVID-19) pandemic. Despite its recognized value and availability, telemedicine is not universally used, suggesting that some barriers prevent its adoption and acceptance within the community. This study aims to describe the implementation of a low-cost telemedicine service in a pediatric hospital in Brazil., Method: Retrospective descriptive study reporting the first three months (April to June 2020) of the experience of implementing a low-cost telemedicine emergency care program in a public tertiary hospital. The service was available to patients up to 18 years of age enrolled in this hospital. A tool for assessing the severity of the patient was developed, the aim of standardizing the procedure, while maintaining quality and safety. Guardian's satisfaction was assessed with a questionnaire sent after teleconsultations., Results: 255 teleconsultations were carried out with 140 different patients. Of the total consultations, 182 were from 99 patients that had performed the Real-Time Polymerase Chain Reaction (RT-PCR) test for the new coronavirus (SARS-Cov-2) or had direct contact with a person known to be positive for COVID-19. Only 26 (14%) were referred to an in-person consultation. No deaths, adverse events or delayed diagnosis were recorded. 86% of the patients who answered the satisfaction questionnaire were satisfied and 92% would use telemedicine again., Conclusion: This study presents an innovative implementation of a telemedicine program in a public and exclusively pediatric tertiary service, serving as a reference for future implementation in other public services in Brazil and developing countries., Competing Interests: Conflicts of Interest The authors declare no conflicts of interest., (Copyright © 2022 Sociedade Brasileira de Pediatria. Published by Elsevier Editora Ltda. All rights reserved.)

Objectives: To prospectively evaluate demographic, anthropometric and health-related quality of life (HRQoL) in pediatric patients with laboratory-confirmed coronavirus disease 2019 (COVID-19)., Methods: This was a longitudinal observational study of surviving pediatric post-COVID-19 patients (n=53) and pediatric subjects without laboratory-confirmed COVID-19 included as controls (n=52) was performed., Results: The median duration between COVID-19 diagnosis (n=53) and follow-up was 4.4 months (0.8-10.7). Twenty-three of 53 (43%) patients reported at least one persistent symptom at the longitudinal follow-up visit and 12/53 (23%) had long COVID-19, with at least one symptom lasting for >12 weeks. The most frequently reported symptoms at the longitudinal follow-up visit were headache (19%), severe recurrent headache (9%), tiredness (9%), dyspnea (8%), and concentration difficulty (4%). At the longitudinal follow-up visit, the frequencies of anemia (11% versus 0%, p=0.030), lymphopenia (42% versus 18%, p=0.020), C-reactive protein level of >30 mg/L (35% versus 0%, p=0.0001), and D-dimer level of >1000 ng/mL (43% versus 6%, p=0.0004) significantly reduced compared with baseline values. Chest X-ray abnormalities (11% versus 2%, p=0.178) and cardiac alterations on echocardiogram (33% versus 22%, p=0.462) were similar at both visits. Comparison of characteristic data between patients with COVID-19 at the longitudinal follow-up visit and controls showed similar age (p=0.962), proportion of male sex (p=0.907), ethnicity (p=0.566), family minimum monthly wage (p=0.664), body mass index (p=0.601), and pediatric pre-existing chronic conditions (p=1.000). The Pediatric Quality of Live Inventory 4.0 scores, median physical score (69 [0-100] versus 81 [34-100], p=0.012), and school score (60 [15-100] versus 70 [15-95], p=0.028) were significantly lower in pediatric patients with COVID-19 at the longitudinal follow-up visit than in controls., Conclusions: Pediatric patients with COVID-19 showed a longitudinal impact on HRQoL parameters, particularly in physical/school domains, reinforcing the need for a prospective multidisciplinary approach for these patients. These data highlight the importance of closer monitoring of children and adolescents by the clinical team after COVID-19.

Objective: To determine the effect of a training program using simulation-based mastery learning on the performance of residents in pediatric intubations with videolaryngoscopy., Method: Retrospective cohort study carried out in a tertiary pediatric hospital between July 2016 and June 2018 evaluating a database that included the performance of residents before and after training, as well as the outcome of tracheal intubations. A total of 59 pediatric residents were evaluated in the pre-training with a skills' checklist in the scenario with an intubation simulator; subsequently, they were trained individually using a simulator and deliberate practice in the department itself. After training, the residents were expected to have a minimum passing grade (90/100) in a simulated scenario. The success of the first attempted intubation, use of videolaryngoscopy, and complications in patients older than 1year of age during the study period were also recorded in clinical practice., Results: Before training, the mean grade was 77.5/100 (SD 15.2), with only 23.7% (14/59) of residents reaching the minimum passing grade of 90/100. After training, 100% of the residents reached the grade, with an average of 94.9/100 (SD 3.2), p<0.01, with only 5.1% (3/59) needing more practice time than that initially allocated. The success rate in the first attempt at intubation in the emergency department with videolaryngoscopy was 77.8% (21/27). The rate of adverse events associated with intubations was 26% (7/27), representing a serious event., Conclusions: Simulation-based mastery learning increased residents' skills related to intubation and allowed safe tracheal intubations with video laryngoscopy., (Copyright © 2020 Sociedade Brasileira de Pediatria. Published by Elsevier Editora Ltda. All rights reserved.)

Objective: The objective of this study is to evaluate the influence of exposure to air pollutants and inhalable environmental elements during pregnancy and after birth until childhood-onset systemic lupus erythematosus(cSLE) diagnosis., Methods: This case-control study comprised 30 cSLE patients and 86 healthy controls living in the Sao Paulo metropolitan area. A structured and reliable questionnaire (kappa index for test-retest was 0.78) assessed demographic data, gestational and perinatal-related-factors, and exposure to inhalable elements during pregnancy and after birth (occupational exposure to inhalable particles and/or volatile vapor, and/or tobacco, as well as, the presence of industrial activities or gas stations near the home/work/daycare/school). Tropospheric pollutants included: particulate matter (PM 10 ), sulfur dioxide (SO 2 ), nitrogen dioxide (NO 2 ), ozone (O 3 ) and carbon monoxide (CO)., Results: The median current age was similar between cSLE patients and healthy controls [16.0 (5-21) versus 15.0 (4-21) years, p = .32], likewise the frequency of female gender (87% versus 78%, p = .43). The frequencies of prematurity (30% versus 6%, p = .001), maternal occupational exposure during pregnancy (59% versus 12%, p < .001), exposure to volatile vapor (48% versus 8%, p < .001) and fetal smoking (maternal and/or secondhand) (37% versus 19%, p = .008) were significantly higher in cSLE patients compared with controls. In a multivariate analysis regarding the gestation period, maternal occupational exposure (OR 13.5, 95% CI 2.5-72.4, p = .002), fetal smoking (OR 8.6, 95%CI 1.6-47, p = .013) and prematurity (OR 15.8, 95%CI 1.9-135.3, p = .012) remained risk factors for cSLE development. Furthermore, exposure to secondhand smoking during pregnancy and after birth (OR 9.1, 95%CI 1.8-42.1, p = .002) was also a risk factor for cSLE development., Conclusions: Prematurity and environmental factors were risk factors for developing cSLE.

Objective: To compare high-fidelity simulation with case-based discussion for teaching medical students about pediatric emergencies, as assessed by a knowledge post-test, a knowledge retention test and a survey of satisfaction with the method., Methods: This was a non-randomized controlled study using a crossover design for the methods, as well as multiple-choice questionnaire tests and a satisfaction survey. Final-year medical students were allocated into two groups: group 1 participated in an anaphylaxis simulation and a discussion of a supraventricular tachycardia case, and conversely, group 2 participated in a discussion of an anaphylaxis case and a supraventricular tachycardia simulation. Students were tested on each theme at the end of their rotation (post-test) and 4-6 months later (retention test)., Results: Most students (108, or 66.3%) completed all of the tests. The mean scores for simulation versus case-based discussion were respectively 43.6% versus 46.6% for the anaphylaxis pre-test (p=0.42), 63.5% versus 67.8% for the post-test (p=0.13) and 61.5% versus 65.5% for the retention test (p=0.19). Additionally, the mean scores were respectively 33.9% versus 31.6% for the supraventricular tachycardia pre-test (p=0.44), 42.5% versus 47.7% for the post-test (p=0.09) and 41.5% versus 39.5% for the retention test (p=0.47). For both themes, there was improvement between the pre-test and the post-test (p<0.05), and no significant difference was observed between the post-test and the retention test (p>0.05). Moreover, the satisfaction survey revealed a preference for simulation (p<0.001)., Conclusion: As a single intervention, simulation is not significantly different from case-based discussion in terms of acquisition and retention of knowledge but is superior in terms of student satisfaction.

Aim: To investigate the influence of hypotonic parenteral hydration on serum and urinary sodium and osmolality in infants with moderate bronchiolitis., Methods: We studied 36 infants (mean age 3.7 ± 2.3 months), with a diagnosis of moderate bronchiolitis admitted to a paediatric emergency unit in São Paulo, Brazil. Patients received a standard parenteral hypotonic solution, according to Holliday and Segar, during the first 24 h, due to respiratory distress. The disease was monitored by a respiratory severity score (RDAI-Respiratory Distress Assessment Instrument), respiratory rate and oxygen saturation. Serum and urinary sodium and osmolality were monitored at admission, 24 and 48 h after admission., Results: All respiratory parameters improved during hospitalisation. Serum sodium and osmolality dropped after 24 h (136.8 ± 2.8 and 135.8 ± 2.6 mEq/L, p = 0.031; 283.4 ± 4.1 and 281.6 ± 3.9 mOsm/kg, p = 0.004 respectively) as well as urinary osmolality (486.8 ± 243.4 mOsm/kg and 355.7 ± 205.0 mOsm/kg, p < 0.001) when compared to admission., Conclusion: This study reinforces the occurrence of hyponatraemia in bronchiolitis even in patients with moderate disease and highlights the risk of serum sodium drop caused by hypotonic parenteral hydration., (©2013 Foundation Acta Paediatrica. Published by John Wiley & Sons Ltd.)

Air pollution consists of a heterogeneous mixture of gasses and particles that include carbon monoxide, nitrates, sulfur dioxide, ozone, lead, toxic by-product of tobacco smoke and particulate matter. Oxidative stress and inflammation induced by inhaled pollutants may result in acute and chronic disorders in the respiratory system, as well as contribute to a state of systemic inflammation and autoimmunity. This paper reviews the mechanisms of air contaminants influencing the immune response and autoimmunity, and it focuses on studies of inhaled pollutants triggering and/or exacerbating rheumatic diseases in cities around the world. Remarkably, environmental factors contribute to the onset of autoimmune diseases, especially smoking and occupational exposure to silica in rheumatoid arthritis and systemic lupus erythematosus. Other diseases such as scleroderma may be triggered by the inhalation of chemical solvents, herbicides and silica. Likewise, primary vasculitis associated with anti-neutrophil cytoplasmic antibody (ANCA) may be triggered by silica exposure. Only few studies showed that air pollutants could trigger or exacerbate juvenile idiopathic arthritis and systemic lupus erythematosus. In contrast, no studies of tropospheric pollution triggering inflammatory myopathies and spondyloarthropathies were carried out. In conclusion, air pollution is one of the environmental factors involved in systemic inflammation and autoimmunity. Further studies are needed in order to evaluate air pollutants and their potentially serious effects on autoimmune rheumatic diseases and the mechanisms involved in the onset and the exacerbation of these diseases., (Copyright © 2011 Elsevier B.V. All rights reserved.)