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Needle sterility during strabismus surgery
S E Olitsky1, M Vilardo, S Awner
1Department of Ophthalmology, Children's Hospital of Buffalo, New York 14222, USA.
Background:
Infection after strabismus surgery is uncommon and its cause remains unanswered. The source of the bacteria and the manner in which it enters the eye is often unknown. Most pediatric ophthalmologists now use 5% povidone-iodine to reduce the bacterial population before surgery. The needles used during strabismus surgery may be a source of bacterial contamination.
Methods:
One hundred six needles were cultured after their use in strabismus surgery.
Results:
Sixteen of 106 needles (15.1%) and 15 of 61 cases (24.6%) were culture positive. The organisms recovered closely resembled indigenous bacterial flora.
Conclusion:
This study suggests that the needles used during strabismus surgery may be the source of bacteria that can lead to infections after strabismus surgery.
Insights
Surgical needles may harbor bacteria, potentially causing uncommon infections after strabismus surgery. This study cultured used needles, finding bacterial contamination in over 15% of samples.
Area of Science:
- Ophthalmology
- Microbiology
- Surgical Safety
Background:
- Post-strabismus surgery infections are rare, with bacterial sources often unidentified.
- Current protocols use povidone-iodine to minimize bacterial load before ocular surgery.
- Surgical needles are a potential vector for bacterial contamination during strabismus procedures.
Purpose of the Study:
- To investigate whether surgical needles used in strabismus surgery are a source of bacterial contamination.
- To identify the prevalence of bacterial presence on post-operative strabismus needles.
Main Methods:
- Culturing of 106 needles following their use in strabismus surgery.
- Analysis of bacterial organisms recovered from the needles.
Main Results:
- Bacterial contamination was detected on 16 out of 106 needles (15.1%).
- In 61 cases, 15 (24.6%) yielded positive cultures.
- The identified bacteria were consistent with normal skin flora.
Conclusions:
- Surgical needles may serve as a significant source of bacterial contamination in strabismus surgery.
- This contamination could contribute to the development of post-operative infections.
- Further research into needle sterilization and handling is warranted to enhance surgical safety.
