Platelet Survival and Platelet Production in Systemic Lupus Erythematosus (SLE)

1975 ◽  
Author(s):  
A.-L. Bergström ◽  
J. Kutti
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Platelet Count ◽  
Life Span ◽  
Lupus Erythematosus ◽  
Control Group ◽  
Healthy Male ◽  
Systemic Lupus ◽  
Platelet Production ◽  
Platelet Survival ◽  
The Mean

In 16 patients (3 males and 13 females) with SLE platelet survival and platelet production were determined. At the time of study 3 patients received no therapy, 10 were treated with corticosteroids, and the remaining 3 received corticosteroids and azathioprin. The control group consists of 21 healthy male volunteers. In all experiments autologous platelets labelled with 51Cr were employed.The mean peripheral platelet count for the SLE patients was 222,000/μl, range 122,000-347,000/μl. In this group the mean for platelet mean life span (MLS) was 6.8±0,3 (S. E.), range 5.5-9.7 days, and did not differ from the mean for the controls (6.9±0.3 days). In the SLE group the mean platelet turnover was 49,000 ±8,000/μl/day. The corresponding value for the controls was 43,000 ± 3,000/μl/day. The values for platelet MLS and platelet turnover in SLE patients were not related to given therapy.Previously it has been suggested that a state of compensated thrombocytolysis is present i SLE. Our results could, however, not confirm this.

Effects of Phototherapy on Platelet Counts in Low-Birthweight Infants and on Platelet Production and Life Span in Rabbits

PEDIATRICS ◽  
1976 ◽  
Vol 57 (4) ◽  
pp. 506-512
Author(s):  
Harold M. Maurer ◽  
Melvin Fratkin ◽  
Nancy B. McWilliams ◽  
Barry Kirkpatrick ◽  
David Draper ◽  
...  
Keyword(s):  
Platelet Count ◽  
Life Span ◽  
Blue Light ◽  
Low Birthweight ◽  
Control Group ◽  
Platelet Production ◽  
Platelet Counts ◽  
The Mean ◽  
To Receive

The effects of conventional phototherapy on platelets in vivo were studied in rabbits and in low-birthweight infants. Rabbits were divided into three groups and individually treated continuously for 96 hours, with blue light, daylight, or no phototherapy. Incorporation of selenomethionine Se 75 was used to evaluate platelet production and life span. Platelet turnover was significantly increased in the blue-light phototherapy group, and was also increased in the daylight group but to a lesser degree. Daily platelet counts and hematocrits were performed in infants weighing less than 2,000 gm at birth randomized at 24 ± 12 hours of life to receive daylight phototherapy continuously for 96 hours (31 infants) or no phototherapy (26 infants). In 12 treated infants (38.7%) platelet counts fell below 150,000/cu mm whereas this occurred in only 3 (11.5%) of the controls. These two lower platelet count subgroups differed significantly in mean gestational age and birthweight with the phototherapy group being the more mature. Pre-phototherapy, the mean platelet count of these 12 infants was lower than the mean of the entire control group, suggesting that these infants had borderline marrow reserve before phototherapy was given. These results suggest that phototherapy increases the rate of platelet turnover. When bone marrow compensation is inadequate, the platelet count may fall.

scholarly journals Efficacy of Acceptance and Commitment Therapy in Reducing Disappointment, Psychological Distress, and Psychasthenia among Systemic lupus Erythematosus (SLE) Patients

2019 ◽  
Author(s):  
Maryam Sahebari ◽  
Mohammad Javad Asghari Ebrahimabad ◽  
Ali Ahmadi Shoraketokanlo ◽  
Hamidreza Aghamohammadian Sharbaf ◽  
Mandana Khodashahi
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Psychological Distress ◽  
Acceptance And Commitment Therapy ◽  
Lupus Erythematosus ◽  
Control Group ◽  
Systemic Lupus ◽  
Acceptance And Commitment ◽  
The Mean ◽  
And Control ◽  
Experimental Group

Objective: The aim of this study was to evaluate the efficacy of acceptance and commitment therapy (ACT) in the reduction of disappointment, psychological distress, and psychasthenia among patients with systemic lupus erythematosus (SLE). Method: This quasi-experimental study was conducted on 24 females with lupus who referred to the Rheumatoid Disease Research Center (RDRC) of Ghaem hospital in Mashhad, Iran. This study had a pretest-posttest control group design. The participants were randomly assigned into 2 groups of experimental and control. The experimental group was treated with ACT. Data were collected using the Beck’s Hopelessness Scale, Kessler’s Psychological Distress Inventory, and Krupp’s Psychasthenia Inventory. Results: Mean age and mean duration of illness were 37.25±4.61 and 5.12±2.33 years, respectively. The mean disappointment score and psychological distress in the experimental group were lower compared to those in control group at the post experimental stage (P<0.001). Moreover, there was a significant difference between the experimental and control groups in the mean scores of psychasthenia in the posttest stage (P<0.001). Conclusion: According to the obtained results of this study, the enhancement of psychological flexibility based on ACT positively affected disappointment, psychological distress, and psychasthenia among the lupus patients. Therefore, it can be concluded that this therapeutic approach could reduce psychasthenia in patients through clarification of the values.

Impact of markers of endothelial injury and hypercoagulability on systemic lupus erythematosus

Lupus ◽  
2020 ◽  
Vol 29 (2) ◽  
pp. 182-190
Author(s):  
W Batista Cicarini ◽  
R C Figueiredo Duarte ◽  
K Silvestre Ferreira ◽  
C de Mello Gomes Loures ◽  
R Vargas Consoli ◽  
...  
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Disease Activity ◽  
Lupus Erythematosus ◽  
Activity Index ◽  
Disease Activity Index ◽  
Endothelial Injury ◽  
Control Group ◽  
Systemic Lupus ◽  
Low Concentrations ◽  
The Relationship

We have explored the relationship between possible hemostatic changes and clinical manifestation of the systemic lupus erythematosus (SLE) as a function of greater or lesser disease activity according to Systemic Lupus Erythematosus Disease Activity Index-2000 (SLEDAI-2K) criteria. Endothelial injury and hypercoagulability were investigated in patients with SLE by measuring thrombomodulin (TM), D-dimer (DDi) and thrombin generation (TG) potential. A total of 90 participants were distributed into three groups: 1) women with SLE presenting with low disease activity (laSLE) (SLEDAI-2K ≤ 4), 2) women with SLE presenting with moderate to high disease activity (mhaSLE) (SLEDAI-2K > 4), and 3) a control group comprising healthy women. Levels of TM and DDi were higher both in the laSLE and mhaSLE groups compared to controls and in mhaSLE compared to the laSLE group. With respect to TG assay, lagtime and endogen thrombin potential, low concentrations of tissue factor provided the best results for discrimination among groups. Analysis of these data allow us to conclude that TM, DDi and TG are potentially useful markers for discriminating patients with very active from those with lower active disease. Higher SLE activity may cause endothelial injury, resulting in higher TG and consequently a hypercoagulability state underlying the picture of thrombosis common in this inflammatory disease.

scholarly journals Methyl donor micronutrients, CD40-ligand methylation and disease activity in systemic lupus erythematosus: A cross-sectional association study

Lupus ◽  
2021 ◽  
pp. 096120332110345
Author(s):  
Stefan Vordenbäumen ◽  
Alexander Sokolowski ◽  
Anna Rosenbaum ◽  
Claudia Gebhard ◽  
Johanna Raithel ◽  
...  
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Dna Methylation ◽  
T Cells ◽  
Disease Activity ◽  
Lupus Erythematosus ◽  
Cd40 Ligand ◽  
Systemic Lupus ◽  
Methyl Donors ◽  
Methyl Donor ◽  
The Mean

Objective Hypomethylation of CD40-ligand (CD40L) in T-cells is associated with increased disease activity in systemic lupus erythematosus (SLE). We therefore investigated possible associations of dietary methyl donors and products with CD40L methylation status in SLE. Methods Food frequency questionnaires were employed to calculate methyl donor micronutrients in 61 female SLE patients (age 45.7 ± 12.0 years, disease duration 16.2 ± 8.4 years) and compared to methylation levels of previously identified key DNA methylation sites (CpG17 and CpG22) within CD40L promotor of T-cells using quantitative DNA methylation analysis on the EpiTYPER mass spectrometry platform. Disease activity was assessed by SLE Disease Activity Index (SLEDAI). Linear regression modelling was used. P values were adjusted according to Benjamini & Hochberg. Results Amongst the micronutrients assessed (g per day), methionine and cysteine were associated with methylation of CpG17 (β = 5.0 (95%CI: 0.6-9.4), p = 0.04; and β = 2.4 (0.6-4.1), p = 0.02, respectively). Methionine, choline, and cysteine were additionally associated with the mean methylation of the entire CD40L (β = 9.5 (1.0-18.0), p = 0.04; β = 1.6 (0.4-3.0), p = 0.04; and β = 4.3 (0.9-7.7), p = 0.02, respectively). Associations of the SLEDAI with hypomethylation were confirmed for CpG17 (β=-32.6 (-60.6 to -4.6), p = 0.04) and CpG22 (β=-38.3 (-61.2 to -15.4), p = 0.004), but not the mean methylation of CD40L. Dietary products with the highest impact on methylation included meat, ice cream, white bread, and cooked potatoes. Conclusions Dietary methyl donors may influence DNA methylation levels and thereby disease activity in SLE.

scholarly journals Fatigue in patients with systemic lupus erythematosus and neuropsychiatric symptoms is associated with anxiety and depression rather than inflammatory disease activity

Lupus ◽  
2021 ◽  
pp. 096120332110050
Author(s):  
Rory C Monahan ◽  
Liesbeth JJ Beaart-van de Voorde ◽  
Jeroen Eikenboom ◽  
Rolf Fronczek ◽  
Margreet Kloppenburg ◽  
...  
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Disease Activity ◽  
Lupus Erythematosus ◽  
Neuropsychiatric Symptoms ◽  
Anxiety And Depression ◽  
Systemic Lupus ◽  
Sf 36 ◽  
Neuropsychiatric Sle ◽  
Inflammatory Phenotype ◽  
The Mean

Introduction We aimed to investigate risk factors for fatigue in patients with systemic lupus erythematosus (SLE) and neuropsychiatric symptoms in order to identify potential interventional strategies. Methods Patients visiting the neuropsychiatric SLE (NPSLE) clinic of the Leiden University Medical Center between 2007–2019 were included. In a multidisciplinary consensus meeting, SLE patients were classified as having neuropsychiatric symptoms of inflammatory origin (inflammatory phenotype) or other origin (non-inflammatory phenotype). Fatigue was assessed with the SF-36 vitality domain (VT) since 2007 and the multidimensional fatigue inventory (MFI) and visual analogue scale (VAS) since 2011. Patients with a score on the SF-36 VT ≥1 standard deviation (SD) away from the mean of age-related controls of the general population were classified as fatigued; patients ≥2 SD away were classified as extremely fatigued. Disease activity was measured using the SLE disease activity index-2000. The influence of the presence of an inflammatory phenotype, disease activity and symptoms of depression and anxiety as measured by the hospital anxiety and depression scale (HADS) was analyzed using multiple regression analyses corrected for age, sex and education. Results 348 out of 371 eligible patients filled in questionnaires and were included in this study . The majority was female (87%) and the mean age was 43 ± 14 years. 72 patients (21%) had neuropsychiatric symptoms of an inflammatory origin. Fatigue was present in 78% of all patients and extreme fatigue was present in 50% of patients with an inflammatory phenotype vs 46% in the non-inflammatory phenotype. Fatigue was similar in patients with an inflammatory phenotype compared to patients with a non-inflammatory phenotype on the SF-36 VT (β: 0.8 (95% CI −4.8; 6.1) and there was less fatigue in patients with an inflammatory phenotype on the MFI and VAS (β: −3.7 (95% CI: −6.9; −0.5) and β: −1.0 (95% CI −1.6; −0.3)). There was no association between disease activity and fatigue, but symptoms of anxiety and depression (HADS) associated strongly with all fatigue measurements. Conclusion This study suggests that intervention strategies to target fatigue in (NP)SLE patients may need to focus on symptoms of anxiety and depression rather than immunosuppressive treatment.

scholarly journals AB0507 INVASIVE ASPERGILLOSIS IN ADULT RHEUMATOLOGICAL PATIENTS IN SAINT PETERSBURG, RUSSIA.

2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 1551.1-1552
Author(s):  
V. Mazurov ◽  
O. Shadrivova ◽  
M. Shostak ◽  
L. Martynova ◽  
M. Tonkoshkur ◽  
...  
Keyword(s):  
Risk Factors ◽  
Systemic Lupus Erythematosus ◽  
Renal Failure ◽  
Invasive Aspergillosis ◽  
Lupus Erythematosus ◽  
Granulomatosis With Polyangiitis ◽  
Control Group ◽  
Systemic Lupus ◽  
Anca Associated Vasculitis ◽  
Underlying Diseases

Background:Invasive aspergillosis (IA) is a severe opportunistic infection that is not well understood in rheumatological patients.Objectives:To study risk factors, etiology, clinical manifestations and results of treatment of IA in adult rheumatological patients.Methods:Retrospective analysis of 830 patients (1998-2019) with “proven” and “probable” IA (EORTC / MSG, 2019), adults - 699 (84%). The main group included 18 (3%) adult rheumatological patients with IA, a control group included 610 (87%) adult hematological patients. Rheumatological patients were older, the average age was 59 years (21–75) vs 45 years (18–79), p = 0.005, and among them there were more women – 56% vs 42%, p = 0.01.Results:In rheumatological patients with IA, underlying diseases were ANCA-associated vasculitis (28%), granulomatosis with polyangiitis (22%), periarteritis (11%), systemic lupus erythematosus (22%), rheumatic heart disease (11%) and ankylosing spondylitis (6%). In the control group, underlying diseases were acute leukemia (45%), lymphomas (34%), chronic leukemia (9%), multiple myeloma (7%), myelodysplastic syndrome (3%), and other hematological diseases (2%).The main risk factors for IA development in rheumatological patients were: systemic steroids use (89% vs 69%), prolonged lymphocytopenia (76% vs 65%, median - 14 vs 12 days), treatment in ICU (44% vs 18%, p = 0.01), acute or chronic renal failure (39% vs 1%, p = 0.0008) and immunosuppressive therapy (28% vs 25%). Severe neutropenia was noted significantly less frequently (18% vs 83%, p = 0.0001). Additional risk factors were decompensated diabetes mellitus (17% vs 2%, p = 0.004), previous surgery (17% vs 1%, p = 0.001) and organ transplantation (6% vs 0%). In rheumatological patients, lung (83% vs 98%, p = 0.0001) and ≥2 organs (6% vs 8%) involvement were less common. Heart (11% vs 0%), sinuses (6% vs 5%) and central nervous system (6% vs 4%) involvement more often developed. In rheumatological patients, respiratory failure (61 vs 37%, p = 0.03), hemoptysis (28% vs 7%, p = 0.0001) and chest pain (17% vs 7%, p = 0, 04) were noted more often, less often - fever ≥380С (67% vs 85%, p = 0.01) and cough (61% vs 70%). CT signs of lung damage were similar in both groups, but rheumatologic patients were more likely to show an «air crescent» sign and / or destruction cavity (44% vs 10%, p = 0.0001). In rheumatologic patients, IA was more often confirmed by isolation ofAspergillusspp. from BAL (80% vs 45%, p = 0.005) and by histological examination (22% vs 7%, p = 0.01). The main pathogens wereA. fumigatus(50% vs 43%),A. niger(29% vs 32%), andA. flavus(14% vs 17%).Rheumatological patients were less likely to receive antifungal therapy 89% vs 99%, p = 0,0003. The main drug in both groups was voriconazole. The overall 12-week survival did not significantly differ between groups, but was lower in rheumatological patients with IA (69% vs 81%).Conclusion:In rheumatological patients, invasive aspergillosis more often developed at an older age, mainly in women. The main background diseases were ANCA-associated vasculitis, granulomatosis with polyangiitis, and systemic lupus erythematosus. Typical risk factors were steroids and immunosuppressants use, prolonged lymphocytopenia, ICU stay, and renal failure. The main causative agents wereA. fumigatus,A. niger, andA. flavus. The main localization of infection were lungs. Respiratory failure, hemoptysis and heart involvement were typical. The overall 12-week survival of rheumatological patients with invasive aspergillosis was 69%.Disclosure of Interests:None declared

scholarly journals AB0007 STAT4 RS7574865 G/T POLYMORPHISM AS MARKER OF PREDISPOSITION TO SYSTEMIC LUPUS ERYTHEMATOSUS WITH JUVENILE ONSET

2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 1038.2-1039
Author(s):  
M. Kaleda ◽  
M. Krylov ◽  
I. Nikishina
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Pilot Study ◽  
Lupus Erythematosus ◽  
Renal Involvement ◽  
Control Group ◽  
Coombs Test ◽  
Systemic Lupus ◽  
Direct Coombs Test ◽  
Positive Direct ◽  
Cutaneous Lupus

Background:Systemic lupus erythematosus (SLE) is a chronic autoimmune disease with a significant genetic predisposition. Recent studies have identified STAT4 (signal transducers and transcription activators 4) as a susceptibility gene for SLE.Objectives:To investigate the hypothesis of the association of STAT4 rs7574865 G/T polymorphism with the predisposition to SLE in children and its relationship with some of SLE manifestations.Methods:The case-control pilot study included 143 children (39 with SLE and 103 healthy unrelated volunteers as a control group). Diagnosis of SLE was based on 2012 SLICC criteria. STAT4 rs7574865 G/T polymorphism was investigated using allele-specific real-time polymerase chain reaction (RT-PCR).Results:The group of pts with SLE consisted of 29 girls and 10 boys, with an average age of 11.8±3.7 years (from 3 to 17 years) and an average disease duration of 4.1±2.4 years. 79.5% pts had acute cutaneous lupus at the onset, 46.1% - nonscarring alopecia, 71.8% - arthritis, 23.1% - oral and nasal ulcers, 23.1% - serositis, 43.6% - renal involvement, 35.9% –neuropsychiatric disorders. Leucopenia/lymphopenia was found in 71.8% of pts, thrombocytopenia – in 23,1%. ANA were detected in 100% pts, anti-dsDNA – in 79.5%, anti-Sm – in 31.6%, antiphospholipid antibodies - in 7,3%, hypocomplementemia – in 61.5%, positive direct Coombs test – in 35.9 %. Macrophage activation syndrome at the onset was documented in 15.4 % of pts. The distribution of rs7574865 genotypes in the control group showed no significant deviations from the Hardy-Weinberg equilibrium. The distribution of genotype frequencies among pts had statistically significant differences compared to the control (χ2=12.95, p=0.0015): GG-30.8% and 63.1% (p=0.001), GT-56.4% and 33.0% (p=0.018), TT-12.8% and 3.9% (p=0.114), GT+TT - 69.2% and 36.9% (p=0.0005). The frequency of the mutant STAT 4 allele T (polymorphism), was significantly higher in the SLE group than in the control group (41% and 20.4%, respectively; p=0.0007). We identified an association of the T allele with some clinical, laboratory, and immunological disorders in SLE: arthritis (OR 3.9, p=0.0002), acute cutaneous lupus (OR 2.47, p=0.003), nonscarring alopecia (OR 3.12, p=0.002), renal involvement (OR 2.42, p=0.022), leucopenia (OR 2.72, p=0.003), thrombocytopenia (OR 4.88, p=0.002), anti-dsDNA (OR 2.82, p=0.0006), hypocomplementemia (OR 2.34, p=0.012), positive direct Coombs test (OR 3.38, p=0.002).Conclusion:Our pilot study confirmed that the STAT4 rs7574865 G/T polymorphism was associated with the risk of SLE in children and some of SLE manifestations.Disclosure of Interests:None declared

scholarly journals POS0058-PARE INCREASING PREECLAMPSIA KNOWLEDGE IN SLE WITH A SPECIFIC EDUCATIONAL TOOL: PRELIMINARY RESULTS

2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 235.2-235
Author(s):  
J. Y. E. Lee ◽  
A. Mendel ◽  
I. Malhamé ◽  
S. Bernatsky ◽  
E. Vinet
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Pregnant Women ◽  
Lupus Erythematosus ◽  
Intervention Group ◽  
Standard Of Care ◽  
Vulnerable Population ◽  
Control Group ◽  
Educational Tool ◽  
Second Trimester ◽  
Systemic Lupus

Background:Pregnant women with systemic lupus erythematosus (SLE) are at high risk of preeclampsia, leading to substantial maternal and fetal morbidity. Aspirin reduces preeclampsia risk but recent studies suggest aspirin is used only in a minority of SLE pregnancies. There is an urgent need to improve preeclampsia counselling and management in this vulnerable population.Objectives:We are conducting the PREPARE (PREeclamPsia knowledge & Aspirin adheRence in lupus prEgnancies) trial, a randomized controlled trial (RCT) evaluating an educational tool on preeclampsia knowledge and aspirin adherence among pregnant women with SLE. We present preliminary analyses of the effect of this tool on preeclampsia knowledge.Methods:Consecutive pregnant SLE women are recruited until the 16th gestational week at 5Canadian Systemic Lupus International Collaborating Clinics centres (i.e. Montreal, Halifax, Quebec, Winnipeg, and Calgary) since 05/2018. Subjects are randomly assigned to receive either the specifically-designed educational tool (intervention group) or standard of care (control group). At baseline (i.e. first trimester) and second trimester visits, the participants complete self-administered preeclampsia knowledge questionnaires (scored out of 30 by the research team blinded to the intervention). We restricted the current analysis to participants enrolled in Montreal (accounting for nearly half of the total planned sample size). We performed a univariate linear regression analysis to assess the effect of the educational tool on preeclampsia knowledge (i.e. mean score difference between the two groups from baseline to second trimester visit).Results:Thirty-three pregnant SLE women were included in the study, among which 16 were exposed to the intervention and 17 were unexposed. Baseline characteristics were well balanced between the two groups with similar mean maternal age between intervention group (32.2 years, standard deviation, SD, 4.6) and control group (34.1 years, SD 4.2) and identical proportion of subjects with post-secondary education (i.e. 80%). The difference in mean preeclampsia knowledge scores between second trimester and baseline visits in the intervention group was 4.4 points (95% CI -0.1, 9.0) and in the control group was 1.5 points (95% CI -2.7, 5.7). The mean difference in knowledge scores (from baseline to second trimester) for those receiving the educational tool was 2.7 points higher (95% CI -1.5, 6.9) than those receiving standard of care.Conclusion:Approximately midway into the PREPARE trial, we observed a trend for improvement in preeclampsia knowledge from the baseline to the second trimester visit in pregnant women with SLE who received a specifically-designed educational tool compared to the control group, although the CIs included the null. Our RCT is well-poised to provide a new evidence-based approach to improve preeclampsia knowledge in pregnant women with SLE, which could help to optimize aspirin use and outcomes in this vulnerable population.References:[1]Schramm AM, Clowse ME. Aspirin for prevention of preeclampsia in lupus pregnancy. Autoimmune Dis. 2014;2014:920467. doi:10.1155/2014/920467[2]Bujold E, Roberge S, Lacasse Y, et al. Prevention of preeclampsia and intrauterine growth restriction with aspirin started in early pregnancy: a meta-analysis. Obstet Gynecol. 2010;116(2 Pt 1):402-414. doi:10.1097/AOG.0b013e3181e9322a[3]Andreoli L, Bertsias GK, Agmon-Levin N, et al. EULAR recommendations for women’s health and the management of family planning, assisted reproduction, pregnancy and menopause in patients with systemic lupus erythematosus and/or antiphospholipid syndrome. Ann Rheum Dis. 2017 Mar;76(3):476–85. doi: 10.1136/annrheumdis-2016-209770.[4]Mendel A, Bernatsky SB, Hanly JG, et al. Low aspirin use and high prevalence of preeclampsia risk factors among pregnant women in a multinational SLE inception cohort. Ann Rheum Dis. 2019;78(7):1010-1012. doi:10.1136/annrheumdis-2018-214434Disclosure of Interests:None declared.

Symptomatic osteonecrosis of the hip and knee in patients with systemic lupus erythematosus: Prevalence, pattern, and comparison of natural course

Lupus ◽  
2021 ◽  
pp. 096120332110310
Author(s):  
Mehmet Ersin ◽  
Mehmet Demirel ◽  
Mehmet Ekinci ◽  
Lezgin Mert ◽  
Çiğdem Çetin ◽  
...  
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Rheumatic Diseases ◽  
Lupus Erythematosus ◽  
Bone Structure ◽  
Survival Rates ◽  
Knee Joints ◽  
Joint Involvement ◽  
Systemic Lupus ◽  
Kaplan Meier ◽  
The Mean

Objective Osteonecrosis (ON), also known as avascular necrosis, is characterized by the collapse of the architectural bone structure secondary to the death of the bone marrow and trabecular bone. Osteonecrosis may accompany many conditions, especially rheumatic diseases. Among rheumatic diseases, osteonecrosis is most commonly associated with systemic lupus erythematosus (SLE). We assessed prevalence and distribution pattern of symptomatic ON in patients with SLE and compare the natural courses of hip and knee ON. Methods 912 SLE patients admitted between 1981 and 2012 were reviewed. SLE patients with symptomatic ON were retrospectively identified both from the existing SLE/APS database. The prevalence of symptomatic ON was calculated; with ON, the joint involvement pattern was determined by examining the distribution of the joints involved, and then the data about the hip and knee joints were entered in the Kaplan-Meier analysis. Kaplan-Meier methods were used to calculate 5- and 10-year rates of ON-related hip (the hip group) and knee survival (the knee group). Results Symptomatic ON developed in various joints in 97 of 912 patients with SLE, and the overall prevalence of ON was detected as 10.6%. The mean age at the time of SLE and ON diagnoses were 27.9 ± 9.9 (14–53) and 34.2 ± 11.3 (16–62) years, respectively. The mean duration from diagnosis of SLE to the first development of ON was 70.7± 60.2 (range = 0–216) months. The most common site for symptomatic ON was the hips (68%, n=66), followed by the knees (38%, n = 37). According to Kaplan-Meier analysis, hip and knee joint survival rates associated with 5-year ON were 51% and 88%, and 10-year survival rates were 43% and 84%, respectively. Conclusion We observed that the prevalence of symptomatic ON in patients with SLE was 10.6%. With the estimated 10-year survival rates of 40% versus 84% for the hip and knee joints, respectively, hip involvement may demonstrate a more aggressive course to end-stage osteoarthritis than the knee involvement.

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