Practices to Reduce Airborne Microorganism Contamination in the Rodent Surgical Area
Posted by: admin | February 03, 2009 | 0 Comments
Not all recommendations for human or veterinary surgery facilities can be applied to rodent surgical facilities because the majority of areas, including patient prep, surgery, patient recovery, and often surgeon prep, are found within one room. Here we list recommendations that can be applied to all rodent surgery facilities.
- Movement of personnel should be kept to a minimum while surgical procedures, invasive and noninvasive, are in progress1. Air is a potential carrier of microorganisms, which can contaminate surgical areas and sites. Since microorganism shedding is increased with activity, increased chances of airborne contamination can be expected with increased movement of personnel through the surgical area.2
- Limiting air movement during surgery can be accomplished by:
- i. Limiting the number of personnel present in the surgical area. An increase in personnel can increase the number of airborne microorganisms and their movement. Talking and uncovered skin can contribute to microbial contamination3.
- Perform surgeries at a time of day when personnel is limited.
- Post signs that surgery is being performed in order to limit personnel access.
- i. ii. Implementing pre-surgical planning for patient and surgical needs. Pre-surgical planning can reduce the need for excess movement or activity during surgical procedures (e.g. not having enough suture material).
- ii. iii. Keeping the door to the surgery room/suite closed. In many facilities, the pressure within the rodent procedure rooms is greater than in the corridors. Therefore, leaving the door open can cause turbulent airflow by disrupting pressurization, which in turn could increase airborne microorganism contamination.
- The flow of sterile surgical instruments, materials, and equipment used prior to and during surgery should be separated from non-sterile items in order to decrease the risk of contamination and infection4.
- Shipped items should be opened outside of the surgical area to limit debris, dust, microorganisms, and insects brought in from the outside5.
- Sterile instruments, materials, and equipment should be located on one side of the patient and non-sterile materials placed on the opposite side to limit the risk of contamination.
Non-sterile materials should not be transferred over the surgical site.