Biochemical profile of renal amyloidosis in a Latin American cohort.

BACKGROUND: Two-thirds of patients with immunoglobulin light chain (AL) amyloidosis have renal involvement. The biochemical profile of kidney damage is poorly described. METHODS: A cross-sectional study was conducted involving patients diagnosed with AL amyloidosis and renal involvement between January 1, 2010, and April 30, 2022 at the Hospital Italiano de Buenos Aires. Participants were retrospectively identified from the Institutional Amyloidosis Registry. Patients diagnosed with AL amyloidosis and evidence of renal involvement were included. Individuals with other types of amyloidosis were excluded. The selection process involved a thorough review of medical records and registry data to ensure accurate identification and inclusion of eligible participants. RESULTS: Seventy-seven patients were included. At diagnosis, 90% of the subjects had proteinuria, with a median of 4.3 g/24 h, 61% had renal failure, and 47% presented nephrotic syndrome. Semi-automated urinary electrophoresis revealed 55% with non-selective and 21% with moderately selective glomerular proteinuria. Urine immunofixation indicated 64% with lambda monoclonal free light chains and 12% with kappa. Serum immunofixation demonstrated 48% with lambda monoclonal type and 25% with lambda IgG. At the time of diagnosis of AL amyloidosis, the median age was 66 years (IQR 53-72) and 49% were men. In addition to kidney involvement, other organs were also affected: heart in 53%, gastrointestinal system in 19%, peripheral nervous system in 16%, and liver in 16% of patients. CONCLUSION: Our study provides a biochemical profile in renal amyloidosis due to immunoglobulin light chains in a Latin American population. Proteinuria emerged as the most common finding in this cohort with frequent multiorgan involvement.

Mimickers of nervous system involvement among patients with Behçet's syndrome.

OBJECTIVES: We aimed to identify conditions mimicking nervous system involvement among patients with Behçet's syndrome (BS) and to determine clinical, laboratory and imaging findings that may help in the differential diagnosis. METHODS: We screened the charts of 500 consecutive BS patients to identify those who were referred to neurology at any time during their follow-up. The final diagnoses, presenting signs and symptoms, laboratory and imaging results were retrieved from patient charts. Patients who did not have a follow-up visit during the last 3 months were invited to the clinic. RESULTS: Among the 500 BS patients, 116 (23%) had been referred to neurology. Among these, 29 (5.8%) were diagnosed with typical central nervous system involvement of BS (NeuroBS). The type of NeuroBS was parenchymal involvement in 21 patients, cerebral venous sinus thrombosis in 7 patients, and both in 1 patient. 30 patients (6%) had other conditions related to the nervous system, 46 (9.2%) did not have a nervous system disorder, and their symptoms recovered spontaneously, and 11 (2.2%) were lost to follow-up without a definite diagnosis. Of the 30 BS patients who were diagnosed with another nervous system condition, 14 (46%) had primary headache syndromes, 6 (20%) had psychiatric disorders, 2 had entrapment neuropathy, and 1 each had epilepsy, glial tumor, multiple sclerosis, Meniere's disease, optic neuritis, neuroretinitis, steroid myopathy and polyneuropathy. CONCLUSION: Nervous system conditions other than NeuroBS are frequent among BS patients referred to neurology. Caution is required to avoid misdiagnosis of these patients as NeuroBS.

A Structured Approach to Involve Stakeholders in Prioritising Topics for Systematic Reviews in Public Health.

Objectives: This study aimed to develop and apply a structured approach for prioritising topics for systematic reviews in public health, framed according to the readily applicable PICO format, which encourages the involvement of stakeholders' preferences in a transparent matter. Methods: We developed a multi-stage process, consisting of a scoping and two Delphi stages with web-based surveys and invited public health stakeholders in Switzerland to participate: First, respondents specified topics for different public health domains, which were reformulated in a PICO format by content analysis. Second, respondents rated the topics using five stakeholder-refined assessment criteria. Overall rankings were calculated to assess differences between stakeholder groups and rating criteria. Results: In total, 215 respondents suggested 728 topics altogether. The response rate in the two Delphi stages was 91.6% and 77.6%, respectively. Most top-rated review topics focused on the effectiveness of interventions providing education to different target groups, followed by interventions to increase access to specific healthcare services. Conclusion: Our approach encourages involvement of stakeholders in identifying priorities for systematic reviews and highlights disparities between stakeholders and between individual criteria.

The Dutch Citizen's Understanding and Perception of the Actors Involved in the Netherlands' COVID-19 Pandemic Response: A Focus Group Study During the First Pandemic Wave.

INTRODUCTION: The COVID-19 pandemic was a public health emergency (PHE) of unprecedented magnitude and impact. It provided the possibility to investigate the Dutch citizens' understanding and perception of the actors involved in the Dutch pandemic response as a PHE unfolded. METHODS: Three focus groups (FGs) were held with 16 Dutch citizens in June 2020. Citizens were recruited using the Dutch Health Care Consumer Panel. During the FGs, participants were asked to fill in a table with actors they thought were involved in the management of the COVID-19 pandemic. They also received information on actors involved in Dutch outbreak responses. Then, the actors named and omitted by the participants were discussed. RESULTS: An analysis of the FGs suggests that the Dutch citizens participating in the study were not fully aware of the scope of actors involved in the Dutch COVID-19 pandemic response. Some participants would have appreciated more information on the actors involved. This would help them have an informed opinion of the actors involved in the decision-making process, and accept non-pharmaceutical interventions implemented. Lastly, most participants recognised that they played a role in limiting the spread of the COVID-19 pandemic. Yet, very few spontaneously mentioned themselves as actors within the COVID-19 pandemic response. CONCLUSION: This study suggests that early in the COVID-19 pandemic, the Dutch citizens participating in this study's FG did not have a complete understanding of the scope of actors involved in the Dutch COVID-19 pandemic response, or the potential role of the citizen. Future research can build on these results to explore the citizen's perception of their role during PHEs of another origin, as well as other geographical and historical contexts. PATIENT OR PUBLIC CONTRIBUTION: The public participated in the focus groups and received a non-expert report summarising the outcomes of the focus groups.

Implementation of health-promoting retail initiatives in the Healthier Choices in Supermarkets Study-qualitative perspectives from a feasibility study.

BACKGROUND: Improving food environments like supermarkets has the potential to affect customers' health positively. Scholars suggest researchers and retailers collaborate closely on implementing and testing such health-promoting interventions, but knowledge of the implementation of such interventions is limited. We explore the implementation of four health-promoting food retail initiatives selected and developed by a partnership between a research institution, a large retail group, and a non-governmental organisation. METHODS: The four initiatives included downsizing of bags for pick'n' mix sweets and soda bottles at the check-out registers, shelf tags promoting healthier breakfast cereal options, and replacing a complimentary bun with a banana offered to children. The initiatives were implemented for 6 weeks (or longer if the store manager allowed it) in one store in Copenhagen, Denmark. Data were collected through observations, informal interviews with customers, and semi-structured interviews with retailers. We conducted a thematic analysis of transcripts and field notes inspired by process evaluation concepts and included quantitative summaries of selected data. RESULTS: Two out of four initiatives were not implemented as intended. The implementation was delayed due to delivery issues, which also resulted in soda bottles not being downsized as intended. The maintenance of the shelf tags decreased over time. Retailers expressed different levels of acceptability towards the initiatives, with a preference for the complimentary banana for children. This was also the only initiative noticed by customers with both positive and negative responses. Barriers and facilitators of implementation fell into three themes: Health is not the number one priority, general capacity of retailers, and influence of customers and other stakeholders on store operation. CONCLUSIONS: The retailers' interests, priorities, and general capacity influenced the initiative implementation. Retailers' acceptability of the initiatives was mixed despite their involvement in the pre-intervention phase. Our study also suggests that customer responses towards health-promoting initiatives, as well as cooperation with suppliers and manufacturers in the development phase, may be determining to successful implementation. Future studies should explore strategies to facilitate implementation, which can be applied prior to and during the intervention.

Regenerative Surgical Management of an Endodontic Periodontic Lesion of the Mandibular Molar Combined With External Inflammation Root Resorption.

Endo-perio lesions are lesions involving pulp tissue with periodontal tissue. The bacterial infection of the pulp can spread to the furcation area through the accessory canal, causing damage to the furcation area. Regeneration therapy has good success when performed with flap surgery and is performed in cases of Grades I and II furcation involvement. Demineralized freeze-dried bone allograft (DFDBA) is a regenerating material that has osteoinductive and osteoconductive abilities. It has the advantage of successful treatment of bone defects. Biodentine is an agent used for direct pulp capping, root perforation and furcation repair, and apexification. It can bind and enter the dentinal tubules and create interlocking crystals with dentin. This case report presents the treatment of furcation involvement Grade II originating from endo-perio lesions by using DFDBA and Biodentine as regeneration materials with 6 months of follow-up.

Reporting community involvement in autism research: Findings from the journal Autism.

LAY ABSTRACT: There has been a growing push for the Autistic and autism communities to be more actively involved in autism research. From January 2021, the journal Autism made it a rule for authors to report whether they involved community members in their work; and if they did, how they had done so. In this study, we wanted to see how this new rule has changed things. Our team of Autistic and non-autistic researchers read all 283 articles published in Autism in 2019, about 2 years before the rule was in place, and in 2022, about 1 year after. We recorded what each article was about and how the community was involved. We found there was an increase in how often articles talked about community involvement - from about 10% before the rule to over 50% after. Most of these studies, however, only involved community members giving advice, with the researchers making most decisions about the research. This was especially true for applied research (like wellbeing) rather than basic science (like causes of autism). Also, some of these articles were unclear or did not give enough information for us to understand how the community was involved. This tells us that while it is promising that more community involvement is reported, researchers need to describe this involvement more clearly. It is also important for community members to have a bigger say in research by sharing power with the researchers or even leading the research themselves.

Guardians' involvement in the management of childhood illnesses in Vhembe district, Limpopo.

Background: Guardians' involvement in the management of childhood illnesses plays a pivotal role in reducing mortality and morbidity among children under 5 years old. It is through the guardian's eyes that the child can be afforded timely healthcare, prevented from contracting an illness and effectively taken prescribed medication. Aim: The study aimed to explore the guardians' lived experiences in their involvement in managing childhood illnesses in Vhembe district, Limpopo province, South Africa. Setting: A qualitative, exploratory and descriptive study was conducted with 16 purposively sampled participants. Methods: One-on-one individual interviews were conducted with participants. Data were analysed following Braun and Clarke's thematic analysis. Results: Guardians reported their involvement by seeking child healthcare in healthcare facilities when ill and due for immunisations. Involvement in childhood care is performed through assessment of child illness at home, follow-up, referral of children to healthcare facilities, promotion of child health and prevention of childhood illnesses. Conclusion: Children remain dependent on guardians for their well-being. Seeking care, preventing illnesses and promoting childhood health are vital in reducing child mortality and childhood morbidity. Contribution: Involving and empowering guardians regarding the care of children under 5 years old are vital in achieving Sustainable Development Goal number 3 in 2030.

Skin, Heart, and CNS Involvement in Granulomatosis With Polyangiitis: A Case Report.

We discuss the case of a 60-year-old male who presented with ankle pain, a necrotic rash, and progressive weakness in both lower limbs and the right upper limb. An infectious workup of the skin lesions came back negative. Additionally, his kidney function tests indicated an acute kidney injury. This prompted investigations for vasculitis etiologies, which revealed a positive cytoplasmic antineutrophil cytoplasmic autoantibody (c-ANCA). His neurological deficits were also investigated, and imaging suggested embolic infarcts. Cardiac imaging showed valve vegetations and blood culture showed a lack of growth suggestive of a noninfective nature of these lesions. Based on all these findings, a kidney biopsy was obtained and demonstrated pauci-immune segmental vasculitis consistent with ANCA-associated glomerulonephritis. As such, the patient showed improvement with heavy pulse steroid and immunomodulator therapy. Although skin, heart, and CNS involvement have been previously reported with ANCA-associated vasculitis, it is rare, especially together, and can prove a diagnostic challenge. Therefore, it is important to consider vasculitis etiology in patients presenting similarly. In addition, this case highlights the overlapping clinical picture between infective endocarditis and vasculitis with valvular involvement, making differentiation between the two challenging.

Aripiprazole/Sertraline Combination: Clinical and Cost-Effectiveness in Comparison With Quetiapine for the Treatment of Bipolar Depression (ASCEnD Trial)-Protocol for a Nested Qualitative Study.

INTRODUCTION: Bipolar disorder is a recurrent mental health disorder with a prevalence rate of 1.4%. On average, there can be a delay of 9.5 years from the initial presentation of symptoms to a confirmed diagnosis. Individuals living with bipolar disorder have a reduced life expectancy. There is limited evidence regarding the effectiveness of antidepressants in treating bipolar disorder. The ASCEnD clinical trial will test the clinical and cost-effectiveness of the aripiprazole/sertraline combination in comparison with quetiapine for the treatment of bipolar depression (individuals who suffer from depressive episodes in bipolar disorder) and will include a nested qualitative study. METHODS: The qualitative study will use semi-structured interviews to explore pilot trial participants' and clinicians' perspectives on recruitment procedures, the acceptability of the intervention, the management of bipolar disorder and attitudes to medication combinations. CONCLUSION: Findings will inform recruitment strategies and optimise training for the participating sites in the ASCEnD full trial. They will also help to illuminate the lived experience of people with bipolar disorder and the clinicians who work with people with bipolar disorder. The discussion will explore perspectives on the delay in diagnosis, having a diagnosis, the impact of living with bipolar disorder and attitudes to treatment, including drug combinations. PATIENT OR PUBLIC CONTRIBUTION: A Lived Experience Advisory Panel (LEAP) has been convened with the support of the McPin Foundation, which will contribute to the ASCEnD trial and its nested qualitative study to provide input on the design and delivery of the trial and qualitative study, analysis of qualitative data and dissemination of findings.

"I am there just to get on with it": a qualitative study on the labour of the patient and public involvement workforce.

BACKGROUND: Workers tasked with specific responsibilities around patient and public involvement (PPI) are now routinely part of the organizational landscape for applied health research in the United Kingdom. Even as the National Institute for Health and Care Research (NIHR) has had a pioneering role in developing a robust PPI infrastructure for publicly funded health research in the United Kingdom, considerable barriers remain to embedding substantive and sustainable public input in the design and delivery of research. Notably, researchers and clinicians report a tension between funders' orientation towards deliverables and the resources and labour required to embed public involvement in research. These and other tensions require further investigation. METHODS: This was a qualitative study with participatory elements. Using purposive and snowball sampling and attending to regional and institutional diversity, we conducted 21 semi-structured interviews with individuals holding NIHR-funded formal PPI roles across England. Interviews were analysed through reflexive thematic analysis with coding and framing presented and adjusted through two workshops with study participants. RESULTS: We generated five overarching themes which signal a growing tension between expectations put on staff in PPI roles and the structural limitations of these roles: (i) the instability of support; (ii) the production of invisible labour; (iii) PPI work as more than a job; (iv) accountability without control; and (v) delivering change without changing. CONCLUSIONS: The NIHR PPI workforce has enabled considerable progress in embedding patient and public input in research activities. However, the role has led not to a resolution of the tension between performance management priorities and the labour of PPI, but rather to its displacement and - potentially - its intensification. We suggest that the expectation to "deliver" PPI hinges on a paradoxical demand to deliver a transformational intervention that is fundamentally divorced from any labour of transformation. We conclude that ongoing efforts to transform health research ecologies so as to better respond to the needs of patients will need to grapple with the force and consequences of this paradoxical demand.

A stakeholder-involved adaptation of pathways and resources for engagement and participation (PREP) material with young adults with complex disability in Australia: an implementation feasibility study.

PURPOSE: Pathways and Resources for Engagement and Participation (PREP) is an intervention to optimise individuals' participation by building problem-solving capacity and addressing environmental barriers. We investigated the feasibility of implementing PREP with young adults (18-30 years) with complex disability in Australia. MATERIALS AND METHODS: Explanatory sequential mixed methods study in three stages. (i) PREP materials were collaboratively adapted by the research team and consumer research partners. (ii) Steps 1 and 2 of PREP (YA Supplement) were completed with three young adults with disability, and preliminary feasibility explored using qualitative methods. (iii) The feasibility of implementing adapted materials was examined using quantitative and qualitative methods involving four young adults with disability, six support people and two service providers. RESULTS: Stage 1: PREP Young Adults Supplement (PREP (YA Supplement)) for use alongside PREP was developed. Stages 2 and 3: findings indicated PREP (YA Supplement) was acceptable, appropriate and feasible. Three themes were identified: setting and achieving goals were associated with challenges and benefits; finding the right time to implement the program was necessary; and PREP (YA Supplement) drives a shift to a participation-focused approach. CONCLUSION: PREP delivered alongside PREP (YA Supplement) appears feasible with Australian young adults with complex disability.

A novel supplement for the evidence-based Pathways and Resources for Engagement and Participation (PREP) intervention has been developed to enhance participation in life situations for young adults with disability in an Australian context (PREP Young Adult Supplement).Setting participation goals may be a substantial shift for young adults with disability and rehabilitation professionals, and involves considering attendance at, and involvement in, life situations.Implementation of PREP/PREP Young Adult Supplement is inherently flexible and can be adapted to suit the needs, preferences and circumstances of the participant.

From Innovator Result-driven to Multi-actor Impact-oriented Public-Private Partnerships: Integrating the Patient Perspective.

Public-Private Partnerships (PPPs) have been crucial in medicine research and development (R&D) for decades. Initially, PPPs involved private and academic innovators working in bilateral collaborations to advance pharmaceutical innovation. Later, a precompetitive open innovation environment was created, where multiple public and private innovators collaborated on mutual interests. The entry of regulators and patient interest organizations into PPPs has triggered a third shift from an innovator result-driven to a multi-actor impact-oriented partnership model. Using the second Innovative Medicines Initiative program (IMI2) as an example, this chapter focuses on the increasing roles of patient interest organizations in PPPs in roughly the last decade.Most IMI2 partnerships focused on raising awareness and sharing information tailored to patient needs (listener role) and inviting patients to share their experiences and needs (co-thinker role). Many partnerships also integrated the patient perspective by implementing patient advisory bodies (advisor role) or including patients as equal partners in steering the project (partner role). Notably, partnerships like EUPATI and PARADIGM showed that patient interest organizations can lead initiatives, especially those aiming at advancing patient engagement across the medicine R&D lifecycle (decision-maker role). While the overall impact of patient involvement in the IMI2 program is still being assessed, it has exposed many innovators and regulators to the patient perspective and created a community of patient experts with access to tools and guidelines for meaningful involvement.The PPP model continues to evolve, shifting from a treatment-only to a comprehensive diagnosis, treatment, and monitoring approach by incorporating digital and medical technology actors. This development, alongside continued patient and public integration could revolutionize the R&D and accessibility of new treatments and diagnostics.

Pathophysiology and Evolving Treatment Options of Septic Arthritis: A Narrative Review.

Pyogenic (septic) arthritis is a severe joint infection characterized by the invasion of microorganisms into the synovium, causing inflammation and joint destruction. This review article provides a comprehensive overview of pyogenic arthritis, focusing on etiology, pathogenesis, clinical manifestations, diagnosis, and management strategies. This review explores routes of microbial entry into joints, emphasizing the importance of prompt identification and treatment to prevent irreversible joint damage. Clinical manifestations, such as joint pain, swelling, and limited range of motion, are discussed, along with the challenges in differentiating pyogenic arthritis from other joint disorders. Diagnostic approaches, including joint aspiration and imaging modalities, are critically examined for accuracy in confirming diagnosis. This review also addresses the significance of early intervention through antimicrobial therapy and joint drainage, highlighting the role of multidisciplinary collaboration in optimizing patient outcomes. In summary, the present investigation underscores the complexities of pyogenic arthritis and the need for a comprehensive understanding of pathophysiology for timely and effective management to improve patient prognosis and quality of life.

Management of distal cholangiocarcinoma with arterial involvement: Systematic review and case series on the role of neoadjuvant therapy.

BACKGROUND: The use of neoadjuvant therapy (NAT) in distal cholangiocarcinoma (dCCA) with regional arterial or extensive venous involvement, is not widely accepted and evidence is sparse. AIM: To synthesise evidence on NAT for dCCA and present the experience of a high-volume tertiary-centre managing dCCA with arterial involvement. METHODS: A systematic review was performed according to PRISMA guidance to identify all studies reporting outcomes of patients with dCCA who received NAT. All patients from 2017 to 2022 who were referred for NAT for dCCA at our centre were retrospectively collected from a prospectively maintained database. Baseline characteristics, NAT type, progression to surgery and oncological outcomes were collected. RESULTS: Twelve studies were included. The definition of "unresectable" locally advanced dCCA was heterogenous. Four studies reported outcomes for 9 patients who received NAT for dCCA with extensive vascular involvement. R0 resection rate ranged between 0 and 100% but without survival benefit in most cases. Remaining studies considered either NAT in resectable dCCA or inclusive with extrahepatic CCA. The presented case series includes 9 patients (median age 67, IQR 56-74 years, male:female 5:4) referred for NAT for borderline resectable or locally advanced disease. Three patients progressed to surgery and 2 were resected. One patient died at 14 months with evidence of recurrence at 6 months and the other died at 51 months following recurrence 6 months post-operatively. CONCLUSION: Evidence for benefit of NAT is limited. Consensus on criteria for uniform definition of resectability for dCCA is required. We propose using the established National-Comprehensive-Cancer-Network® criteria for pancreatic ductal adenocarcinoma.

Patient perspectives on climate friendly healthcare: an exploratory study in obstetrics and gynaecology.

OBJECTIVE: To investigate patient perspectives on climate change and climate change mitigation strategies in healthcare. METHODS: A cross-sectional survey among gynaecological patients from two Dutch outpatient clinics. Main outcomes included patients' climate-related knowledge and worry, climate friendly healthcare perspectives and willingness to opt for climate friendly treatment alternatives. Multivariable linear regression analyses were performed to explore patient characteristics associated with climate friendly healthcare perspectives. RESULTS: 274 surveys were included. Most patients (79 %) were worried about climate change. Although almost all (91 %) found it important to contribute to climate protection, patients showed hesitance regarding healthcare measures that would impinge on individual choices. 62 % was willing to opt for climate friendly treatments, but this proportion varied by medical condition. Climate-related knowledge and worry were both positively associated with climate friendly healthcare perspectives. CONCLUSION: Gynaecological patients are concerned about climate change and possess substantial self-reported climate-related knowledge. Patients vary in their support of climate action that involves individual patient care, but the majority is open to choose climate friendly treatment alternatives for certain medical conditions. PRACTICE IMPLICATIONS: This exploratory study holds implications for the feasibility of integrating climate impact into clinical decision-making and provides a foundation for normative evidence for decarbonizing healthcare.

Prevalence of cyberbullying involvement and its association with clinical correlates among Chinese college students.

BACKGROUND: Cyberbullying refers to a modern form of bullying that could be practiced electronically or on the Internet. This study conducted a cross-sectional survey to explore different types of cyberbullying involvement (CI) and the associations of CI with demographic characteristics and mental health problems among Chinese college students. METHODS: A total sample of 18,578 Chinese college students were recruited (68.1 % female, mean age = 20.07 years) from October 17 to 29, 2023. All participants completed self-reported web-based questionnaires on demographic characteristics, CI, sleep disturbance, depression, anxiety, and suicidal ideation. RESULTS: More than a quarter of participants (27.5 %) have been involved in cyberbullying: specifically speaking, 10.1 % cybervictims, 4.7 % cyberbullies, and 12.7 % both (cyberbully-victims). Males, younger age, left-behind experiences, individuals with poorer family economic status, adolescents with chronic physical illness, and those with family history of mental disorders are more likely to experience CI. Unlike participants without CI, cybervictims and cyberbully-victims reported a higher risk of sleep disturbance, depression, anxiety, and suicidal ideation. Cyberbullies also have a higher rate of sleep disturbance and depression than their peers who are not involved in cyberbullying. CONCLUSION: Our findings indicate that CI is widespread among Chinese college students, and CI is associated with the high reported rates of a series of psychopathology. This study highlights the significance of implementing anti-cyberbullying interventions specifically targeted at college students. Furthermore, it underscores the importance of monitoring changes in students' mental health status throughout the intervention process.

Blood soluble CD89-IgA complex may be a potential biomarker for predicting multi-organ involvement, especially renal involvement in children with immunoglobulin A vasculitis.

BACKGROUND: Immunoglobulin A vasculitis (IgAV) is a kind of systemic vasculitis mediated by IgA immune complexes (IgA-ICs). Soluble CD89-IgA complex (sCD89-IgA) as a type of IgA-IC associated with renal involvement in IgAV, the ability of blood sCD89-IgA as a biomarker to predict renal or multi-organ involvement in children with IgAV is not evident, and this study mainly focused on this. METHODS: The clinical characteristics and blood samples of 57 pediatric patients with IgAV were collected. ELISA was used to detect plasma IgA-ICs and sCD89-IgA levels. Serum IgA levels were detected by Nephelometry method. Statistical analysis was conducted to analyze the relationship between sex, age, serum IgA levels, plasma IgA-ICs levels, plasma sCD89-IgA levels and the involvement of multiple organs (except skin) including kidneys in these patients. RESULTS: Compared to patients with simple skin involvement, patients with multi-organ involvement, especially kidneys, had higher levels of plasma IgA-ICs and sCD89-IgA, and the statistical difference was significant. In addition, a high level of plasma sCD89-IgA was a high-risk factor for patients to develop multi-organ or renal involvement in addition to the skin. ROC curve analysis showed that the AUC was 0.861 (Sensitivity: 83 %, Specificity: 88 %, p < 0.0001) when plasma sCD89-IgA predicted multi-organ involvement, and AUC 0.926 (Sensitivity: 94 %, Specificity: 88 %, p < 0.0001) for predicting renal involvement. CONCLUSIONS: The results suggested that plasma sCD89-IgA may be a potential biomarker for predicting multi-organ involvement (in addition to skin), especially renal involvement in IgAV pediatric patients.