فراوانی آلودگی باکتریایی فرآورده‌های پلاکتی در سازمان انتقال خون جهرم در سال 96-1395

نویسندگان

1 بخش باکتری شناسی و ویروس شناسی، دانشگاه علوم پزشکی جهرم، جهرم، ایران

2 کمیته تحقیقات دانشجویی،دانشگاه علوم پزشکی جهرم، جهرم، ایران

3 مرکز تحقیقات بیماری های غیرواگیردار، دانشگاه علوم پزشکی جهرم، جهرم، ایران

4 مدیر سازمان انتقال خون جهرم، جهرم، ایران

چکیده

مقدمه: اغلب موارد سپسیس باکتریایی مرتبط با انتقال خون، ناشی از کنسانتره پلاکتی (PC) آلوده‌شده است. غربالگری کنسانتره پلاکتی برای تشخیص آلودگی باکتریایی در ایران ضروری است. در این تحقیق، فراوانی آلودگی باکتریایی کنسانتره پلاکتی در راستای کنترل کیفیت با روش رنگ‌آمیزی گرم و کشت میکروبی موردمطالعه قرار گرفت.
روش کار: در یک مطالعه توصیفی- مقطعی به‌صورت تصادفی، تعداد 880 کورد از 440 کیسه فرآورده پلاکتی (از هر کیسه پلاکتی 2 عدد کورد به دست آمد) در روزهای اول و سوم انتخاب و وارد مطالعه گردید. پس از تهیه اسمیر مستقیم جهت رنگ‌آمیزی گرم، نمونه‌ها در محیط‌های بلاد آگار و آگار شکلاتی در شرایط هوازی و میکروائروفیل جهت شناسایی کوکسی های گرم مثبت و منفی و باسیل‌های گرم مثبت و در محیط مک کانکی در شرایط هوازی جهت شناسایی باسیل‌های گرم منفی کشت داده شدند.
یافته‌ها: از مجموع 440 کیسه پلاکتی افراد اهداءکننده در سازمان انتقال خون جهرم که از هرکدام 2 عدد کورد پلاکتی (880 نمونه) برای بررسی در روزهای اول و سوم تهیه شد، 1 مورد استافیلوکوکوس ساپروفیتیکوس جدا شدند. لذا میزان فراوانی آلودگی فرآورده‌های پلاکتی در شهرستان جهرم 0.23 درصد تشخیص داده شد.
نتیجه‌گیری: انجام آزمایش‌های رنگ‌آمیزی و کشت باکتریایی از کوردهای تمام کیسه‌های پلاکتی قبل از مصرف راه کار مناسبی در راستای ایمنی و پیشگیری از آلودگی باکتریایی فرآورده‌های پلاکتی و کنترل کیفی می باشد.

 

کلیدواژه‌ها

عنوان مقاله [English]

Frequency of Bacterial Contamination of Platelet Products in Blood Transfusion Organization of Jahrom in 2016-17

نویسندگان [English]

  • Akbar Kazemi 1
  • Fatemeh Atashi 2
  • Reyhneh Rouhi jahromi 1
  • Danesh Javeshghani 3
  • Pejman Hamedi-Asl 3
  • Fatemeh Vahidinezhad 2
  • Abdolrahman Mohtashemifar 4
  • Zahra Hooshyar 2
  • Zahra Rezaee 2
  • Nazila Shiravani 2
  • Pegah Eidizadeh 2
  • Farnoosh Hatami 2

1 Department of Bacteriology and Virology, Jahrom University of Medical Sciences, Jahrom, Iran

2 Student Research Committee, Jahrom University of Medical Sciences, Jahrom, Iran

3 Research Center for Non Communicable Diseases, Jahrom University of Medical Sciences, Jahrom, Iran.

4 Manager of Jahrom blood transfusion organization, Jahrom, Iran

چکیده [English]

Introduction: Most cases of blood transfusion-associated bacterial sepsis are caused by platelet concentrates (PCs).
Screening of PCs is carried out in the Iranian quality control plans as it is essential for detection of bacterial contamination. With regard to quality control, this study investigated the frequency of bacterial contamination of PCs through Gram staining and microbial culture methods.
Materials and Methods: In this descriptive cross-sectional study, 880 cords out of 440 platelet product bags (two cords per platelet bag) were selected on the first and third days and included in the study. Direct smears were prepared from the samples for Gram staining, then they were cultured in blood agar and chocolate agar under aerobic and microaerophilic conditions for detection of both Gram positive and negative cocci and Gram positive bacteria. Cultures were also made in MacConkey medium under aerobic conditions to identify Gram negative bacilli. In cases of bacterial growth and colony formation, differential tests were performed to detect the bacteria.
Results: One case of Staphylococcus saprophyticus was isolated of 440 platelet bags collected from donors in Jahrom Blood Transfusion Organization, from which two platelet cord (880 samples) had been isolated on the first and third days. Accordingly, a contamination frequency of 0.23% was detected for platelet products in Jahrom city.
Conclusion: Performing staining and bacterial culture from all of the platelet cords before they are used is a good
way to ensure safety and prevent bacterial contamination from platelet products and quality control.

کلیدواژه‌ها [English]

  • Platelet
  • Bacterial Contamination
  • Bacterial Culture
  • Blood Transfusion
  • Blood Donors
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