Description
In this presentation, Maliha Olaifa discusses their project titled "Noise in Theaters: Is it Safe?" which examines the risk of noise-induced hearing loss among orthopedic surgeons due to high noise levels in operating theaters. The presentation begins with background information about noise-induced hearing loss, noting that it is a common occupational disease that affects millions. Olaifa explains the method of measuring noise levels in orthopedic surgeries at St George's Hospital using a sound level meter app and convenient sampling to collect data, mindful of preventing bias by blinding the surgical teams to the study's purpose.
The findings reveal that during some surgeries, noise levels exceeded the 85-decibel threshold considered hazardous, mainly due to instruments like mallets and saws. Statistical analyses showed no correlation between the number of staff present and noise levels, and no significant difference was found in noise levels between surgeries with and without music. The presentation also highlights that the personal noise exposure of surgeons depends on the specific procedures performed throughout the day.
To mitigate risks, Olaifa suggests further research with larger samples and better measuring equipment, as well as practical solutions such as sound-absorbing materials in theaters and strategic scheduling of procedures. The importance of balancing effective communication in the OR while still using hearing protection is noted as a critical consideration. Lastly, the presentation touches on future research areas, including the effects of noise on patients under anesthesia.