Infection detection in patients with systemic lupus erythematosus using a hospital administrative database

Objective: To estimate the frequency of infections and to describe the pattern of these infections among patients diagnosed with Systemic Lupus Erythematous (SLE) treated at the Central Military Hospital (HOMIL). Methods: A descriptive study was carried out using an administrative database of the military hospital, we used a validated algorithm that classifies patients as having SLE in administrative databases. Infection was defined as an event with main diagnosis using the International Statistical Classification of Diseases and Related Health Problems (ICD-10) coding algorithm or by searching the antibiotics prescription database, additionally, we abstracted some variables related to SLE status in the group of patients in whom infections were documented during the infection event. Results: 237 SLE patients were identified. The mean age was 41.9 years (CI 29.0-54.3), 80% were female, 97.7% used conventional disease-modifying anti-rheumatic drugs (DMARDs). Of these 237 patients, 22 (9.4%) met the operative definition of infection, in this group the mean age was 44.3 years (SD 16.4). All the 22 patients received conventional DMARDs and none of them had concomitant biologic therapy. In this group of patients, the most common type of infection was bacterial (72.7%), followed by viral (9.1%) including a patient with SARS-CoV-2 infection. Conclusion: Hospital administrative databases can be a useful source of information for monitoring outcomes that generate significant morbidity and mortality in patients with SLE, in the group of patients in whom infections were documented, bacterial infections were the most frequent. The most documented clinical findings were leukopenia, systemic steroid therapy, and concomitant disease activity.

Objetivo: Estimar la frecuencia de las infecciones y describir su patrón de presentación en pacientes con diagnóstico de lupus eritematoso sistémico (LES) atendidos en el Hospital Militar Central (Homil) en Bogotá, Colombia. Métodos: Se realizó un estudio descriptivo en el que se utilizó una base de datos administrativa del Hospital Military se empleó un algoritmo validado que clasificó a los pacientes con LES en las bases de datos administrativas. La infección se definió a partir de los códigos CIE-10 o por la búsqueda en la base de datos de la prescripción de antibióticos; adicionalmente, en las historias clínicas del grupo de pacientes en los que se documentaron infecciones, se revisaron algunas variables relacionadas con el estado de LES durante el evento de la infección. Resultados: Se identificaron 237 pacientes con LES, cuya edad media fue de 41,9 años (IC 29,0-54.3), el 80% eran mujeres y el 97,7% usaba medicamentos antirreumáticos modificadores de la enfermedad (DMARD) convencionales. De estos 237 pacientes, 22 (9,4%) cumplieron con la definición operativa de infección; en este grupo la edad media fue de 44,3 anos (DE = 16.4). Los 22 pacientes recibieron DMARD convencionales y ninguno recibió terapia biológica concomitante. En este grupo, el tipo de infección más común fue la bacteriana (72,7%), seguida de la viral (9,1%), incluido un paciente con infección por SARS-CoV-2. Conclusiones: Las bases de datos administrativas hospitalarias pueden ser una fuente útil de información para el seguimiento de los eventos que generan una morbimortalidad significativa en los pacientes con LES. En el grupo de pacientes en los que se documentaron infecciones, las infecciones bacterianas fueron las más frecuentes y los hallazgos clínicos más comúnmente documentados fueron la leucopenia, la terapia con esteroides sistémicos y la actividad de la enfermedad concomitante.

Prevalence of Common Infections and Flare-ups in on-treatment SLE Patients Attending Two Tertiary Care Hospitals in Kolkata

Systemic Lupus Erythematosus (SLE) is a multisystem autoimmune disease. Infections are the most common complications. Early detection, proper management of infection and its differentiation from Lupus flare are of paramount importance. Objective : To find out the prevalence of infections with various etiologic agents among on-treatment SLE patients who were hospitalized for suspected infections and to differentiate infections from disease flare. Methods : This was a cross-sectional observational study with 50 patients of more than 16 years of age of both sexes fulfilling the Systemic Lupus International Collaborating Clinics (SLICC) 2012, classification criteria of SLE who were admitted for suspected infection as manifested by fever and systemic symptoms. Specific tests to identify etiological agent for infection were performed and the condition was differentiated from lupus flare with the help of the tests such as Total Leucocyte Count (TLC), C-reactive Protein (CRP), Anti-ds DNA, complements-C3 and C4. Result : Infections were evident in 42 patients (84%) with predominant monoinfection being pneumonia in 13 patients (30.9%) followed by Urinary Tract Infection (UTI) in 8 patients (19%). Streptococcus pneumoniae was the major cause of Pneumonia while Escherichia coli caused most of UTIs. The infection markers were fever, CRP and TLC. Of the 42 patients, 40 patients (95%) had fever, 28 (66.7%) had Leukocytosis and 35 (83%) had CRP 10 mg/L or more indicating infection. Anti-ds DNA antibody was raised in 4 patients out of total 6 patients with Lupus flare. The complements C3 and C4 values were low in all the 6 patients. No patient of disease flare had raised CRP or Leukocytosis Conclusion : Among 50 on-treatment SLE patients who were admitted in two Tertiary Care Hospitals of Kolkata with suspected infection it was found that 42 patients were having infections and 6 patients were suffering from Lupus flare. The predominant monoinfection was Pneumonia followed by UTI.

Infection in systemic lupus erythematosus, similarities, and differences with lupus flare

Systemic lupus erythematosus (SLE) is a chronic autoimmune disease with diverse manifestations, and its pathogenesis is unclear and complicated. Infection and SLE are similar in that they both cause inf lammatory reactions in the immune system; however, one functions to protect the body, whereas the other is activated to damage the body. Infection is known as one of the common trigger factors for SLE; there are a number of reports on infectious agents that provoke autoimmune response. Several viruses, bacteria, and protozoa were revealed to cause immune dysfunction by molecular mimicry, epitope spreading, and bystander activation. In contrast, certain pathogens were revealed to protect from immune dysregulation. Infection can be threatening to patients with SLE who have a compromised immune system, and it is regarded as one of the common causes of mortality in SLE. A clinical distinction between infection and lupus f lare up is required when patients with SLE present fevers. With a close-up assessment of symptoms and physical examination, C-reactive protein and disease activity markers play a major role in differentiating the different disease conditions. Vaccination is necessary because protection against infection is important in patients with SLE.

Clinical course and obstetrical outcomes of 94 pregnancies in Korean patients with systemic lupus erythematosus (SLE) / 대한산부인과학회지

OBJECTIVE: The purpose of this study was to assess the maternal and fetal outcomes in pregnant women with systemic lupus erythematosus (SLE) and to evaluate clinical and laboratory markers for preterm birth and lupus flares. METHODS: 94 pregnancies of 60 patients were retrospectively evaluated from Jan 1997 to Sep 2004. We used clinical and laboratory data from the medical records and statistics analysis by Chi-square test, using SPSS 15.0 V. RESULTS: Pregnancy resulted in 74 (78.7%) live births, 11 (11.7%) spontaneous abortions, 2 (2.1%) therapeutic abortion, and 4 (4.2%) stillbirths. Thirty-seven cases (47.4%) were delivered by cesarean section. Obstetric complications included 17.9% of preterm births, 26.9% of preeclampsia, and 20.5% of IUGR. There were 31 (39.7%) uncomplicated cases among the pregnancies over 20 gestational weeks. There were 12 of transient neonatal lupus, 2 of neonatal death due to prematurity, and 51 of normal births. Low C4, myocarditis, pleural effusion prior to pregnancy, activity at conception, antiphospholipid antibody syndrome were significantly associated with preterm birth. The maternal long-term effect of pregnancy was poor, because 44.7% were in deterioration of cardiovascular, hematologic or renal function after delivery. Lupus nephritis, proteinuria, hematuria, and activity at conception were significantly associated with lupus flare during pregnancy. CONCLUSION: Pregnant women with active SLE at conception should be intensively monitored with maternal and fetal surveillance. It is essential to control disease activity during pregnancy. However, adequate pregnancy follow-up and delivery care by multidisciplinary effort with experience in management of patients with SLE resulted in a better outcome of lupus pregnancy.

Fetal outcome and clinical feature during pregnancy in systemic lupus erythematosus / 대한내과학회지

BACKGROUN: Our aim was to assess the rate of flare in patients with systemic lupus erythematosus (SLE) during pregnancy, to describe fetal outcomes in lupus in Asan Medical Center and to identify clinical or serological factors that would predict pregnancy loss and poor fetal outcome. METHODS: We retrospectively studied 49 pregnancies in 47 women with SLE. Clinical and laboratory data were identified from medical record. RESULTS: Lupus flare occurred in 30 (61.2%) of the pregnancies, mostly in the second trimester. Flares presented most commonly as involvement of skin or joints, constitutional symptoms. All of the patients with flare were treated with glucocorticosteroid. There was no predictive factor for flare of lupus during pregnancy. There were 37 (75.5%) live births and 12 (24.5%) fetal losses. Of live births, 10 (20.4%) were premature babies, 5 (10.2%) intrauterine growth retardation. Of fetal losses, 5 (10.2%) were spontaneous abortion, 5 (10.2%) therapeutic abortion, 2 (4.1%) still births. Using univariate analysis, predictive factors for adverse fetal outcome include antiphospholipid antibody, renal involvement, active lupus at conception and flare of lupus during pregnancy. Using multivariate analysis, antiphospholipid antibody was the only significant predictor for fetal loss, and lupus flare during pregnancy was the only significant predictor for poor fetal outcome. CONCLUSION: There was no predictive factor for the flare of lupus during pregnancy. Most lupus pregnancies did well, but there was a higher rate of adverse fetal outcome. Antiphospholipid antibody and flare of lupus during pregnancy were the only important predictors of fetal loss and premature birth, respectively.