Bakomliggande faktorer till presbyacusis; en litteraturstudie av mindre kända faktorer

Sammanfattning: Background: More than half of the elderly (65-84 years) in Sweden have problems with hearing. In some studies it’s discussed if age related hearing loss or presbyacusis is a part of natural aging or if it depends on underlying factors. The purpose of this literature study was to analyse scientific papers which have investigated correlations between less known underlying factors to presbyacusis, defined from psychoacoustic and/or neurofysiological tests. Material and method; Literature study where scientific papers, relevant to the purpose of the study and the questions at issue were found in the database PubMed. The result shows that cardiovascular disease, hormones, diet and drugs have an influence on presbyacusis. The health condition of the individual and their lifestyle matters, likewise estrogen which according to the results of 3 studies has a protective effect on hearing. Conclusion; The studies shows that heart attack and high systolic blood pressure in women have a correlation to presbyacusis, but not in men, -the hormone estrogen has a protective effect on hearing, and- some vitamins, antioxidants and diet have a protective effect -some studies show that smoking and alcohol have negative influences on hearing.