بررسی فراوانی Lupus Nephritis و هماچوری در بین بیماران مبتلا به Systemic Lupus Erythematosus در شهر اصفهان

نوع مقاله : مقاله های پژوهشی

نویسندگان

1 استادیار، گروه داخلی، دانشکده‌ی پزشکی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

2 دانشیار، گروه داخلی، دانشکده‌ی پزشکی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

3 دانشجوی پزشکی، کمیته‌ی تحقیقات دانشجویی، دانشکده‌ی‌ پزشکی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

چکیده

مقدمه: با توجه به اهمیت و شیوع بالای درگیری کلیوی در بیماران دچار Systemic lupus erythematosus (SLE) و امکان سنجش پیش‌گویی هماچوری در رخداد Lupus nephritis، هدف از انجام این مطالعه، بررسی فراوانی Lupus nephritis در بیماران SLE دچار هماچوری بود.روش‌ها: این مطالعه، یک پژوهش مقطعی بود که به بررسی 500 بیمار دچار SLE در شهر اصفهان در بین سال‌های 94-1380 پرداخت. مستندات پزشکی، اطلاعات دموگرافیک و بالینی بیماران شامل سطوح C3 و C4، Anti-dsDNA antibody، وجود Lupus nephritis، پروتئینوری، کست سلولی (Cellular casts)، پیوری، عفونت مجاری ادراری، سنگ مجاری ادرار، نقص‌های مادرزادی کلیوی و سابقه‌ی هر گونه بیماری کلیوی در انتهای مطالعه با مراجعه به دفتر بایگانی بیمارستان از پرونده‌ی بیماران اخذ و با استفاده از نرم‌افزار SPSS واکاوی گردید.یافته‌ها: فراوانی هماچوری در بیماران دچار Lupus nephritis 11/36 درصد بود و ارتباط معنی‌داری بین وجود هماچوری و Lupus nephritis در بیماران SLE مشاهده نگردید (520/0 = P، 648/1-376/0 = فاصله‌ی اطمینان 95 درصد، 727/0 = Odd ratio یا OD). افرادی که Lupus nephritis داشتند، پراکندگی سنی کمتری را در مقایسه با افراد بدون Lupus nephritis نشان دادند (005/0 = P). بیشتر افرادی که در گروه Lupus nephritis بودند، میزان C3 و C4 پایین داشتند، اما بیشتر بیمارانی که در گروه بدون Lupus nephritis بودند، سطوح C3 و C4 طبیعی داشتند (050/0 > P).نتیجه‌گیری: فراوانی نسبی Lupus nephritis در بیماران SLE دچار هماچوری، حدود 36 درصد بود. بنابراین، مشاهده‌ی هماچوری در بیماران دچار SLE ممکن است در یک سوم موارد، بروز Lupus nephritis را پیش‌بینی نماید.

کلیدواژه‌ها


عنوان مقاله [English]

The Frequency of Lupus Nephritis and Hematuria in Patients with Systemic Lupus Erythematous in Isfahan City, Iran

نویسندگان [English]

  • Maryam Mousavi 1
  • Zahra Sayed-Bonakdar 2
  • Habibeh Mohammadi 3
1 Assistant Professor, Department of Internal Medicine, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
2 Associate Professor, Department of Internal Medicine, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
3 Students of Medicine, Students Research Committee, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
چکیده [English]

Background: Concerning the importance and the high frequency of renal involvement in patients with systemic lupus erythematosus (SLE), and the ability to measure the value of hematuria on predicting the incidence of lupus nephritis, this study aimed to determine the frequency of lupus nephritis in SLE patients with hematuria.Methods: This cross-sectional study investigated 500 patients with SLE in Isfahan City, Iran, between the years 2001 and 2015. Medical history, as well as demographic and clinical data of patients including the levels of C3, C4, and anti-dsDNA antibody, presence of lupus nephritis, proteinuria, cellular cast, pyuria, urinary tract infection, urinary tract stones, congenital renal defects, and history of any kidney disease were obtained from the patients' files at the end of the study period, and analyzed using SPSS software.Findings: The frequency of hematuria in patients with lupus nephritis was 36.1%, and there was no significant relationship between the presence of hematuria and the existence of lupus nephritis in patients with SLE [odds ratio (OR) = 0.727, confidence interval of 95% = 0.376-1.648, P = 0.520]. The individuals with lupus nephritis had a lower age distribution compared to the cases without it (P = 0.005). Most of the cases in the lupus nephritis group had low C3 and C4, but most patients in non-lupus nephritis group had normal levels of C3 and C4 (P < 0.05).Conclusion: The relative frequency of lupus nephritis in SLE patients with hematuria was approximately 36%. Therefore, the presence of hematuria in patients with SLE may account for incidence of lupus nephritis one-third of the cases.

کلیدواژه‌ها [English]

  • Lupus nephritis
  • Systemic Lupus Erythematosus
  • Hematuria
  • Biomarkers
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