Aleyna AĞIRMAN, Yunus Emre ÇETİN, Mete AVCI, Ali Orhan AYDIN

Bir Ameliyathanede Hava Değişim Katsayısının Partikül Dağılımı Üzerine Etkisi

Cerrahi alan enfeksiyonları (CAE) cerrahinin önemli problemlerindendir. Ameliyathanelerde, havadaki patojen partikül sayısı ile CAE gelişme riski doğrudan ilişkilidir. Ameliyathane havalandırmasına ait hava değişim katsayısı (HDK), kirletici dağılımını etkileyen önemli faktörlerden biridir. Bu çalışmada, laminer hava akış sistemine sahip bir ameliyathanede ameliyat masası üzerine düşen partikül sayısı ve partikül dağılımı, farklı hava değişim katsayısı değerleri için hesaplamalı akışkanlar dinamiği (HAD) kullanılarak incelenmiştir. Çalışmada üç farklı HDK değeri (20, 30 ve 40) ve üç farklı partikül çapı (10, 15 ve 20 µm) dikkate alınmıştır. Ameliyat masası üzerine düşen partikül miktarının, partikül çapının azalması ve HDK değerinin artması ile azaldığı belirlenmiştir.

Effect of Air Change Rate on Particle Distribution in an Operating Room

Surgical site infections (SSI) are important problems of surgery. There is a direct correlation between risk of developing surgical site infection and number of pathogen particles in operating room air. Air change rate (ACH) for operating room ventilation is one of the important factors affecting the distribution of pollutants in the environment. in this study, particle distribution and number of particle deposition on the operating table in an operating room with laminar air flow system is investigated using computational fluid dynamics for different ACH values. in the study, three different ACH values (20, 30 and 40) and three different particle diameters (10, 15 and 20 µm) are taken into consideration. It is obtained that the amount of particles deposited on the operating table decrease with decreasing particle diameter and increasing of ACH value.

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