Noise Induced Hearing Loss (NIHL) is regarded as a serious problem and one of the most recorded occupational disorders in Europe and in the rest of the world and amounts to between 7% and 21% of the hearing loss.

Aim of this study is to explore the development and the prevalence of low frequency Noise-Induced Hearing Loss (NIHL) in a hospital, especially in microbiology laboratory workers. Generally, it is known that 4 KHz is the main NIHL frequency. Despite current theories, this study suggests for the first time the impact of low frequency noise in hearing loss among laboratory workers.  According to the results, the population examined, namely the employees at the microbiology department of the hospital, showed lower hearing levels compared to the control group, who had no history of occupational exposure to noise. There are many other studies which suggest that prolonged exposure to high noise levels have negative physiological and psychological effects on workers. The finding of the correlation of noise frequency with the frequency of the generated hearing loss is involved in the controversy about the pathophysiology of noise effect.

Konstantina Chrysouli works as a specialist otorhinolaryngologist at Penteli Children’s Hospital, Athens, Greece.  She is a member of the European Rhinologic Society, of the European Society for Medical Oncology (ESMO), of the European Head & Neck Society (EHNS) and of the European Society of Pediatric Otorhinolaryngology (ESPO). She received her training in otorhinolaryngology in the 1st ENT department of University Hospital of Athens Hippocrates at the age of 32 years old. She also holds a master’s degree in rhinology (with high distinction) from and the University of Athens and the University of Patras. She has participated in several international and panhellenic conferences with speeches and oral presentations, among which in the 4th Congress of European ORL - HNS, Barcelona, in the 28th Congress of the European Rhinologic Society in conjunction with the 39th Congress of the International Society of Inflammation and Allergy of the Nose (ISIAN) and 21st Congress of the International Rhinologic Society (IRS) and in many international congresses on head and neck cancer. She has received several awards and honors, among which the ‘Best Oral Presentation’ award in the 24th Panhellenic Otorhinolaryngology-Head & Neck Surgery Congress. Her current clinical and research interests cover the full breadth of pediatric otorhinolaryngology, with a particular interest, though, in rhinology and neuroaudiology. She has many publications that have been cited many times. She also serves as a reviewer and as an editorial advisory board member of international peer-reviewed ENT journals.