Changes of Platelet Indices in Patients with Systemic Lupus Eythematosus and their Correlation with Disease Activity | ||||
| The Medical Journal of Cairo University | ||||
| Article 13, Volume 87, September, September 2019, Page 2801-2808 PDF (761.38 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/mjcu.2019.59309 | ||||
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| Authors | ||||
| WAFAA M. SHERIF, M.Sc.; RASHA A. ABDEL NOOR, M.D.; MOHAMED ATTIA, M.D.; NASHWA NOR EL-DEEN, M.D. | ||||
| Abstract | ||||
| Abstract Background: Systemic lupus erythematosus (SLE) is autoimmune disease needs continuous assessment of disease activity. There is no single biomarker used for that purpose. Platelet indices have recently been found to be a simple inflammatory marker used in the assessment of systemic inflammation in many diseases like, rheumatoid arthritis, ankylosing spondylitis and inflammatory bowel diseases. Aim of Study: To evaluate platelet indices [mean platelet volume (MPV), platelet distribution width (PDW) and platelet-crit (PCT)] as markers of disease activity in patients with SLE. Patients and Methods: In this cross sectional study we tested 100 subjects; 20 healthy control and 80 SLE patients recruited from rheumatology unit in Internal Medicine De-partment, Tanta University, Tanta, Egypt. Then the lupus patients were divided according to SLEDAI into 20 patients without flare (SELEDAI <4), 17 patients mild flare (SELEDAI 4– <8), 25 patients moderate flare (SELEDAI 8 – <12) and 18 patients severe flare (SELEDAI >_12). Platelet indices (MPV, PDW, PTC) were assessed in all of them and their correlation to SLEDAI score were analyzed. Results: MPV and PDW had no clinical significance in assessing lupus activity, PCT significantly lower with SLE patients with severe flare and it had a significant negative correlation with SELEDAI score with cutoff value equals <_0.173, sensitivity 61.11%, specificity 79.03%, PPV 45.8% and NPV 87.5%. Finally there was no significant difference between lupus nephritis and lupus without nephritis patients in Platelet indices. Conclusion: Plateletcrit (PCT) can be used as a new marker for SLE activity. | ||||
| Keywords | ||||
| SLE; Lupus activity; SLEDAI; Platelet indices; Mean platelet volume; Plateletcrit; Platelet distribution width | ||||
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