بررسی مقایسه‌ای کلونیزاسیون میکروارگانیسم‌های ابزار لاپاراسکوپی بعد از جراحی و به دنبال دو روش متفاوت پاکیزه‌سازی

نوع مقاله : مقاله های پژوهشی

نویسندگان

1 گروه اتاق عمل، دانشکده‌ی پرستاری و مامایی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

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

3 مربی، گروه اتاق عمل، دانشکده‌ی پرستاری و مامایی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

4 استادیار، مرکز تحقیقات مراقبت‌های پرستاری و مامایی و گروه اتاق عمل، دانشکده‌ی پرستاری و مامایی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

چکیده

قدمه: پاکیزه‌سازی دقیق، به عنوان اولین گام فرایند استفاده‌ی مجدد، می‌تواند موجب استریلیزاسیون مؤثرتر و حفاظت تیم درمانی و بیماران از عفونت‌های قابل انتقال گردد. این مطالعه، با هدف مقایسه‌ی دو روش پاکیزه‌سازی بیمارستان و روش پاکیزه‌سازی انجمن Association for the Advancement of Medical Instrumentation (AAMI) بر روی میزان کاهش کلونیزاسیون میکروارگانیسم‌های ابزار لاپاراسکوپی انجام گردید.روش‌ها: در این پژوهش نیمه‌تجربی، ۱۲۸ ابزار لاپاراسکوپی به طور تصادفی در دو گروه پاکیزه‌سازی بیمارستان و پاکیزه‌سازی AAMI قرار گرفتند و طی دو مرحله‌ی بلافاصله بعد از جراحی و بعد از فرایند پاکیزه‌سازی با هر یک از روش‌های پیش‌گفته، از ابزار مورد نظر نمونه‌برداری شد. تعداد و نوع میکروارگانیسم‌های جدا شده در محیط‌های کشت Sabouraud Dextrose Agar، Blood Agar و MacConkey Agar تعیین گردیدیافته‌ها: میانگین تعداد کل میکروارگانیسم‌های جدا شده از ابزار بلافاصله بعد از جراحی، 105 × 24 Colony forming unit در 100 میلی‌لیتر (CFU در 100 میلی‌لیتر) به دست آمد. بعد از انجام فرایند پاکیزه‌سازی در گروه پاکیزه‌سازی بیمارستان به 105 × 2/7 CFU در 100 میلی‌لیتر و در گروه AAMI به 105 × 34/0 CFU در 100 میلی‌لیتر کاهش پیدا نمود که این کاهش در گروه AAMI به طور معنی‌داری بیشتر از گروه بیمارستان بود (050/0 > P). بیشترین فراوانی نوع میکروارگانیسم‌های جدا شده بعد از جراحی به ترتیب مربوط به Escherichia coli (2/81 درصد)، Pseudomonas aeruginosa (8/68 درصد) و Klebsiella (8/57 درصد) بود.نتیجه‌گیری: کاهش چشم‌گیر میانگین تعداد کل و فراوانی نوع میکروارگانیسم‌ها در گروه AAMI نشان داد که مرطوب‌سازی ابزار لاپاراسکوپی در حین جراحی و غوطه‌وری در محلول آنزیمی که در روش AAMI مورد تأکید است، موجب پاکیزه‌سازی بهتر و دقیق‌تر ابزار می‌گردد و روش مؤثرتری نسبت به شیوه‌نامه‌ی بیمارستان می‌باشد.

کلیدواژه‌ها


عنوان مقاله [English]

Evaluation of Microorganism Colonization on Laparoscopic Instruments after Surgery and Following Two Different Cleaning Methods

نویسندگان [English]

  • Sorour Mosleh 1
  • Hossein Fazeli 2
  • Hassan Farahmand 3
  • Akram Aarabi 4
1 Department of Operating Room, School of Nursing and Midwifery, Isfahan University of Medical Sciences, Isfahan, Iran
2 Associate Professor, Department of Microbiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
3 Instructor, Department of Operating Room, School of Nursing and Midwifery, Isfahan University of Medical Sciences, Isfahan, Iran
4 Assistant Professor, Nursing and Midwifery Care Research Center AND Department of Operating Room, School of Nursing and Midwifery, Isfahan University of Medical Sciences, Isfahan, Iran
چکیده [English]

Background: An accurate cleaning, as the first step of reprocessing, would make the sterilization more effective, and protects healthcare providers and patients against infections. The present study aimed to compare the effect of two cleaning methods of conventional and the Association for the Advancement of Medical Instrumentation (AAMI) on the reduction of microorganism colonization on laparoscopic instruments.Methods: In this quasi-experimental study, 128 laparoscopic instruments was randomly divided into two groups of conventional and AAMI cleaning protocols. Sampling was done immediately after surgery and the cleaning process. The number and types of microorganisms which isolated from the Sabouraud Dextrose Agar, Blood Agar and MacConkey Agar media were determined.Findings: The total mean number of microorganisms isolated from instruments was 24 × 105 colony forming unit (CFU)/100 ml immediately after surgery. After cleaning process, it was reduced to 7.2 × 105 CFU/100 ml and 0.34 × 105 CFU/100 ml in conventional and AAMI groups, respectively. This reduction was significantly higher in the AAMI group than in the conventional cleaning group (P < 0.050). The most frequent type of the microorganisms isolated after surgery were as Escherichia coli (81.2%), Pseudomonas aeroginosa (68.8%), and Klebsiella spp. (57.8%), respectively.Conclusion: Reduction of total mean number and frequency of the microorganisms after the cleaning process were higher in the AAMI group than in conventional group. Therefore, the AAMI method may prevent hospital-acquired infection, and is recommended as an effective cleaning method for laparoscopic instruments after surgery.

کلیدواژه‌ها [English]

  • Laparoscopy
  • Surgical instruments
  • Colony count
  • Microbial
  • Decontamination
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