scholarly journals Prevalence and factors associated with lupus nephritis in Venezuelan patients

2021 ◽  
Author(s):  
Isabel F. Aponte ◽  
María V. García-Francis ◽  
Javier A. García-Becerra ◽  
Yurilis J Fuentes-Silva ◽  
Daniela B. Tovar-Bastidas ◽  
...  

There are scarce data on lupus nephritis from single Latin American countries. We have assessed the prevalence and factors associated with lupus nephritis in a sample of Venezuelan patients with systemic lupus erythematosus (SLE).

Lupus ◽  
2021 ◽  
pp. 096120332110103
Author(s):  
Paul J Tejada-Llacsa ◽  
Pamela Villacorta-Landeo ◽  
Eder Aguilar-Buitrón ◽  
Graciela S Alarcón ◽  
Manuel F Ugarte-Gil

Background/Objective Information available on the internet about Systemic Lupus Erythematosus (SLE) can influence the doctor-patient relationship. Therefore, the aim of this study was to identify the terms used for SLE on the internet. Methods We analyzed the data downloaded from Google Trends, considering the term “Lupus” in a six-year web-based research. The frequency of the terms for each Pan-American country was obtained automatically from Google Trends, which reports relative search volumes or RSV (on a scale from 0 to 100) across regions. Results We obtained a total of 67 registered terms in 18 countries. The terms were distributed into five categories. The categories with interest in all countries were “definition” and “symptoms”. Conclusions Google Trends allows us to find useful information about SLE on the internet; once the accuracy of this information is validated, it can be used by patients, health institutions, rheumatologists and other health professionals.


Lupus ◽  
2021 ◽  
pp. 096120332199008
Author(s):  
Reem Aldarmaki ◽  
Hiba I Al Khogali ◽  
Ali M Al Dhanhani

Introduction Systemic lupus erythematosus (SLE) is a relapsing and remitting multiorgan disease associated with significant morbidity and mortality. The survival rate of patients with SLE has recently improved, which was associated with increased morbidity and hospitalization rates. Therefore, this study aimed to examine the rate and causes of hospitalization in patients with SLE and explore factors associated with increased length of stay (LOS). Methods Patients who visited rheumatology clinics (Tawam hospital, United Arab Emirates (UAE)) and fulfilled the American College of Rheumatology (ACR) SLE criteria were identified. Retrospective charts were reviewed to determine previous admissions. Demographic data, reason for hospitalization, duration of hospitalization, intensive care unit (ICU) admission, number of specialist consultations, medications used, and SLE characteristics at time of admission were collected. The hospitalization rate was calculated as the number of hospitalized patients divided by the total number of patients with the disease. We performed multivariable regression analysis for factors associated with increased LOS. Results A total of 91 patients with SLE (88 women and 3 men) met the inclusion criteria with a mean disease duration of 10.2 years (SD 5.5). A total of 222 admissions were identified, and 66 of 91 patients were admitted at least once. The mean crude hospitalization rate calculated was 29.8%. The primary reason for admission was pregnancy (29%), SLE activity (24%), and infection (20%). When combining primary and secondary reasons, the proportion of admissions due to SLE activity increased to 32%. The mean LOS was 5.9 (SD 6.0) days. About 7% of admitted patients required ICU admission. In multivariable analysis, patients with lupus nephritis, complications during hospitalization, and increased number of specialists consultations and who were admitted to ICU and started new medication were all associated with increased LOS. Conclusion A significant proportion of patients with SLE were hospitalized during their disease course. The hospitalization rate in this study appears to be higher than those reported elsewhere. Disease flare is the leading cause of admission in patients with SLE in this relatively young cohort. Lupus nephritis has been found to be significantly related to longer LOS. Measurements taken to reduce the incidence and severity of flares would likely decrease hospitalization rate and LOS in patients with SLE.


Lupus ◽  
2016 ◽  
Vol 26 (1) ◽  
pp. 73-83 ◽  
Author(s):  
G J Pons-Estel ◽  
L D Aspey ◽  
G Bao ◽  
B A Pons-Estel ◽  
D Wojdyla ◽  
...  

Objectives The objective of this study was to examine whether early discoid lupus erythematosus (DLE) would be a protective factor for further lupus nephritis in patients with systemic lupus erythematosus (SLE). Methods We studied SLE patients from GLADEL, an inception longitudinal cohort from nine Latin American countries. The main predictor was DLE onset, which was defined as physician-documented DLE at SLE diagnosis. The outcome was time from the diagnosis of SLE to new lupus nephritis. Univariate and multivariate survival analyses were conducted to examine the association of DLE onset with time to lupus nephritis. Results Among 845 GLADEL patients, 204 (24.1%) developed lupus nephritis after SLE diagnosis. Of them, 10 (4.9%) had DLE onset, compared to 83 (12.9%) in the group of 641 patients that remained free of lupus nephritis (hazard ratio 0.39; P = 0.0033). The cumulative proportion of lupus nephritis at 1 and 5 years since SLE diagnosis was 6% and 14%, respectively, in the DLE onset group, compared to 14% and 29% in those without DLE ( P = 0.0023). DLE onset was independently associated with a lower risk of lupus nephritis, after controlling for sociodemographic factors and disease severity at diagnosis (hazard ratio 0.38; 95% confidence interval 0.20–0.71). Conclusions Our data indicate that DLE onset reduces the risk of further lupus nephritis in patients with SLE, independently of other factors such as age, ethnicity, disease activity, and organ damage. These findings have relevant prognosis implications for SLE patients and their clinicians. Further studies are warranted to unravel the biological and environmental pathways associated with the protective role of DLE against renal disease in patients with SLE.


Author(s):  
Asma Al-Kindi ◽  
Batool Hassan ◽  
Aliaa Al-Moqbali ◽  
Aliya Alansari

2018 ◽  
pp. 52-58
Author(s):  
Le Thuan Nguyen ◽  
Bui Bao Hoang

Introduction: Systemic lupus erythematosus (SLE) is an autoimmune disease involving multiple organ systems. The kidney appears to be the most commonly affected organ, especially nephrotic is a serious kidney injury. The clinical, laboratory manifestations and histopathology are very useful for diagnosis, provide the means of predicting prognosis and guiding therapy in nephrotic patients with lupus nephritis. Methods: Descriptive cross-sectional study of nephrotic patients with lupus treated in the Department of Nephrology Trung Vuong Hospital and Cho Ray Hospital between May/2014 and May/2017. Renal histopathological lesions were classified according to International Society of Nephrology/Renal Pathology Society - ISN/RPS ’s 2003. The clinical, laboratory manifestations and histopathological features were described. Results: Of 32 LN with nephritic range proteinuria cases studied, 93.7% were women. The 3 most common clinical manifestations were edema (93.8%), hypertension (96.8%) and pallor (68.9%), musculoskeletal manifestions (46.9%), malar rash (40.6%). There was significant rise in laboratory and immunological manifestions with hematuria (78.1%), Hb < 12g/dL (93.5%), increased Cholesterol (100%), and Triglycerid (87.5%), Creatinine > 1.4 mg/dL (87.5%), increased BUN 71.9%, ANA (+) 93.8%, Anti Ds DNA(+) 96.9%, low C3: 96.9%, low C4: 84.4%. The most various and severe features were noted in class IV with active tubulointerstitial lesions and high activity index. Conclusion: Lupus nephritis with nephrotic range proteinuria has the more severity of histopathological feature and the more severity of the more systemic organ involvements and laboratory disorders were noted. Key words: Systemic lupus, erythematosus (SLE) lupus nepphritis, clinical


2020 ◽  
Vol 8 (1) ◽  
Author(s):  
Jorge Ivan Gamez-Nava ◽  
Valeria Diaz-Rizo ◽  
Edsaul Emilio Perez-Guerrero ◽  
Jose Francisco Muñoz-Valle ◽  
Ana Miriam Saldaña-Cruz ◽  
...  

Abstract Background To date, the association of serum macrophage migration inhibitory factor (MIF) and serum adipokines with lupus nephritis is controversial. Objective To assess the utility of serum MIF, leptin, adiponectin and resistin levels as markers of proteinuria and renal dysfunction in lupus nephritis. Methods Cross-sectional study including 196 systemic lupus erythematosus (SLE) patients and 52 healthy controls (HCs). Disease activity was assessed by Systemic Lupus Erythematosus Disease Activity Index (SLEDAI). Renal SLE involvement was investigated by renal-SLEDAI. MIF, adiponectin, leptin and resistin levels were quantified by ELISA. We assessed the correlations of quantitative variables by Spearman correlation (rs). Multivariable linear regression adjusted the variables associated with the severity of proteinuria. Results SLE patients had higher MIF (p = 0.02) and adiponectin (p < 0.001) than HCs. Patients with renal SLE involvement (n = 43) had higher adiponectin (19.0 vs 13.3 μg/mL, p = 0.002) and resistin (10.7 vs 8.9 ng/mL, p = 0.01) than patients with non-renal SLE (n = 153). Proteinuria correlated with high adiponectin (rs = 0.19, p < 0.009) and resistin (rs = 0.26, p < 0.001). MIF (rs = 0.27, p = 0.04). Resistin correlated with increased creatinine (rs = 0.18, p = 0.02). High renal-SLEDAI correlated with adiponectin (rs = 0.21, p = 0.004). Multiple linear regression showed that elevated adiponectin (p = 0.02), younger age (p = 0.04) and low MIF (p = 0.02) were associated with the severity of proteinuria. Low MIF and high adiponectin levels interacted to explain the association with the severity of proteinuria (R2 = 0.41). Conclusions High adiponectin combined with low MIF concentrations int+eract to explain the severity of proteinuria in renal SLE. These findings highlight the relevance of adiponectin, resistin and MIF as markers of LN.


RMD Open ◽  
2020 ◽  
Vol 6 (3) ◽  
pp. e001299
Author(s):  
Cristina Reátegui-Sokolova ◽  
Manuel F Ugarte-Gil ◽  
Guillermina B Harvey ◽  
Daniel Wojdyla ◽  
Guillermo J Pons-Estel ◽  
...  

AimA decrease in proteinuria has been considered protective from renal damage in lupus nephritis (LN), but a cut-off point has yet to be established. The aim of this study was to identify the predictors of renal damage in patients with LN and to determine the best cut-off point for a decrease in proteinuria.MethodsWe included patients with LN defined clinically or histologically. Possible predictors of renal damage at the time of LN diagnosis were examined: proteinuria, low complement, anti-double-stranded DNA antibodies, red cell casts, creatinine level, hypertension, renal activity (assessed by the Systemic Lupus Erythematosus Disease Activity Index (SLEDAI)), prednisone dose, immunosuppressive drugs and antimalarial use. Sociodemographic variables were included at baseline. Proteinuria was assessed at baseline and at 12 months, to determine if early response (proteinuria <0.8 g/day within 12 months since LN diagnosis) is protective of renal damage occurrence. Renal damage was defined as an increase of one or more points in the renal domain of The Systemic Lupus International Collaborating Clinics (SLICC)/American College of Rheumatology (ACR) Damage Index (SDI). Cox regression models using a backward selection method were performed.ResultsFive hundred and two patients with systemic lupus erythematosus patients were included; 120 patients (23.9%) accrued renal damage during their follow-up. Early response to treatment (HR=0.58), antimalarial use (HR=0.54) and a high SES (HR=0.25) were protective of renal damage occurrence, whereas male gender (HR=1.83), hypertension (HR=1.86) and the renal component of the SLEDAI (HR=2.02) were risk factors for its occurrence.ConclusionsEarly response, antimalarial use and high SES were protective of renal damage, while male gender, hypertension and higher renal activity were risk factors for its occurrence in patients with LN.


2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 1048.1-1048
Author(s):  
W. Hu

Background:Classical lupus nephritis (LN) is characterized by glomerular immune complex(IC) deposition with glomerular proliferation, basement membrane destruction and cell infiltration. Non-IC mediated renal injury with thrombotic microangiopathy (TMA) was also reported in patients with systemic lupus erythematosus (SLE-renal TMA), but most studies were reported in patients with both LN and renal TMA.Objectives:In this study, clinical features and outcomes of SLE-renal TMA in absence of obvious IC in SLE patients were analyzed.Methods:Patients with glomerular TMA and/or vascular TMA in the absence of obvious subendothelial or epithelial immune deposits were screened out from 2332 biopsied in SLE patients who underwent first renal biopsy from January 2005 to August 2016. Their clinical, histological features and outcomes were retrospectively analyzed.Results:In 2332 renal biopsies obtained from SLE patients, 257 (11.0%) showed renal TMA, of which 237 showed both renal TMA and LN, and 20 biopsies had only renal TMA (SLE-renal TMA). There were 2 males and 18 females with an average age of (25 ± 10) years. The median course of SLE and LN were 3.0(1.0, 6.0) and 0.8(0.5, 1.9) months. All 20 patients deserved acute kidney injury, of which 11 (55%) needed renal replacement therapy (RRT) and 12 (60%) were nephrotic syndrome. Blood system involvement was found in all cases, including 13 cases (65.0%) with TMA triad (microvascular hemolytic anemia, thrombocytopenia and elevated lactate dehydrogenase).Pathological examination showed that 17 cases (85.0%) had both glomerular TMA and vascular TMA. Immunofluorescence and electron microscopy showed that 8 cases (40%) had no IC deposition in glomerulus and 12 cases (60%) had only IC deposition in mesangium. Acute tubulointerstitial lesions in patients requiring RRT were more serious than those no needing for RRT((43.6±24.9) %vs(21.7±20.1) %,P=0.047). The fusion range of foot process was positively correlated with proteinuria (r2= 0.347,P=0.006).All patients received high-dose methylprednisolone pulse therapy. Four patients received plasma exchange and three patients received gamma globulin, respectively. Eleven patients requiring RRT all stop RRT in a median time of 16.0 (9.0, 30.0) days. During a median follow-up of 58.0 (36.0, 92.3) months, complete remission (CR) was obtained in 15 cases, partial remission in 4 cases and no remission in 1 case. Six cases (30%) relapsed. No case died or progressed to end stage renal disease.Conclusion:Renal injury characterized by TMA is not uncommon in SLE renal biopsy cases. The clinical manifestation is special and the renal injury is serious. The renal outcome is good by intensive immunosuppressive therapy. It should be considered as a unique type of renal injury in SLE.References:[1]Moake JL. Thrombotic microangiopathies. N Engl J Med. 2002. 347(8): 589-600.[2]Anders HJ, Weening JJ. Kidney disease in lupus is not always ‘lupus nephritis’. Arthritis Res Ther. 2013. 15(2): 108.[3]Song D, Wu LH, Wang FM, et al. The spectrum of renal thrombotic microangiopathy in lupus nephritis. Arthritis Res Ther. 2013. 15(1): R12.[4]Hu WX, Liu ZZ, Chen HP, Zhang HT, Li LS, Liu ZH. Clinical characteristics and prognosis of diffuse proliferative lupus nephritis with thrombotic microangiopathy. Lupus. 2010. 19(14): 1591-8.[5]Tomov S, Lazarchick J, Self SE, Bruner ET, Budisavljevic MN. Kidney-limited thrombotic microangiopathy in patients with SLE treated with romiplostim. Lupus. 2013. 22(5): 504-9.[6]Li C, Yap D, Chan G, et al. Clinical Outcomes and Clinico-pathological Correlations in Lupus Nephritis with Kidney Biopsy Showing Thrombotic Microangiopathy. J Rheumatol. 2019 .[7]Chen MH, Chen MH, Chen WS, et al. Thrombotic microangiopathy in systemic lupus erythematosus: a cohort study in North Taiwan. Rheumatology (Oxford). 2011. 50(4): 768-75.[8]Park MH, AUID- Oho, Caselman N, Ulmer S, Weitz IC, AUID- Oho. Complement-mediated thrombotic microangiopathy associated with lupus nephritis. Blood Adv. 2018. 2(16): 2090-2094.Disclosure of Interests:None declared


2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 660.2-660
Author(s):  
J. Álvarez Troncoso ◽  
Á. Robles Marhuenda ◽  
F. Mitjavila Villero ◽  
F. J. García Hernández ◽  
A. Marín Ballvé ◽  
...  

Background:Systemic lupus erythematosus (SLE) is a systemic autoimmune disease characterized by multiorgan involvement. Pulmonary hypertension (PH) is an uncommon manifestation with high morbidity and mortality whose characteristics, prevalence and evolution in SLE are not completely defined.Objectives:Using data of patients from the inception cohort Registro Español de Lupus Eritematoso Sistémico (RELES), we aimed to to identify the factors associated with pulmonary hypertension (PH) in systemic lupus erythematosus (SLE).Methods:Prospective observational study on a multicenter Spanish inception cohort. Patients with SLE, diagnosed by the American College of Rheumatology (ACR) criteria, since January 2009, who had at least one transthoracic echocardiogram (TTE) performed were selected. Demographic data, diagnostic criteria, follow-ups, treatments and SLEDAI were analyzed.Results:Of 289 patients diagnosed with SLE with TTE performed, 15 (5.2%) patients were identified to have PH. Mean age was 56,9±7,7 years, of which 93,3% (14) were women and 80% (12) Caucasian. The ACR score at diagnosis was 4.66. Mean SLEDAI was 15. Only 5 patients had dyspnea at the time of diagnosis. Mean pulmonary arterial systolic pressure was 49.2±5.6 mmHg. Among the PH, 4 patients had pericarditis (26.6%), 3 (20%) valvulopathies (1 antiphospholipid syndrome), 1 patient pulmonary embolism and 1 shrinking lung. Multivariable analysis indicated that pericarditis (odds ratio (OR)=2.53), and valvulopathies (OR 8.96) were independently associated with the development of PH in SLE. Having PH was associated with older age at diagnosis (p<0.001), more dyspnea (p<0.001), higher ESR (p=0.007), more serositis (p<0.001), higher SLEDAI (p=0.011), higher SLICC (p <0.001), higher number of admissions (p=0.006) and higher mortality (p=0.003).Conclusion:PH in SLE is a serious comorbidity with high mortality. In the RELES cohort it was associated with increased disease activity, pericarditis and valvulopathies. Performing TTE in patients with SLE may favor early diagnosis and treatment.References:[1]Kim JS, Kim D, Joo YB, et al. Factors associated with development and mortality of pulmonary hypertension in systemic lupus erythematosus patients.Lupus. 2018;27(11):1769–1777.[2]Bazan IS, Mensah KA, Rudkovskaia AA, et al. Pulmonary arterial hypertension in the setting of scleroderma is different than in the setting of lupus: A review.Respir Med. 2018;134:42–46.Disclosure of Interests:Jorge Álvarez Troncoso: None declared, Ángel Robles Marhuenda: None declared, Francesca Mitjavila Villero: None declared, Francisco José García Hernández: None declared, Adela Marín Ballvé: None declared, Antoni Castro Consultant of: Actelion pharmaceuticals, GSK, MSD., Gonzalo Salvador Cervelló: None declared, Eva Fonseca: None declared, Isabel Perales Fraile: None declared, Guillermo Ruiz-Irastorza: None declared


Lupus ◽  
2021 ◽  
pp. 096120332098858
Author(s):  
José A Gómez-Puerta ◽  
Guillermo J Pons-Estel ◽  
Rosana Quintana ◽  
Romina Nieto ◽  
Rosa M Serrano Morales ◽  
...  

Introduction: After more than 20 years of sustained work, the Latin American Group for the Study of Lupus (GLADEL) has made a significant number of contributions to the field of lupus, not only in the differential role that race/ethnicity plays in its course and outcome but also in several other studies including the beneficial effects of using antimalarials in lupus patients and the development of consensus guidelines for the treatment of lupus in our region. Methods: A new generation of “Lupus Investigators” in more than 40 centers throughout Latin America has been constituted in order to continue the legacy of the investigators of the original cohort and to launch a novel study of serum and urinary biomarkers in patients with systemic lupus erythematosus. Results: So far, we have recruited 807 patients and 631 controls from 42 Latin-American centers including 339 patients with SLE without renal involvement, 202 patients with SLE with prevalent but inactive renal disease, 176 patients with prevalent and active renal disease and 90 patients with incident lupus nephritis. Conclusions: The different methodological aspects of the GLADEL 2.0 cohort are discussed in this manuscript, including the challenges and difficulties of conducting such an ambitious project.


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