Comparative Efficacy of Prostheses in Hearing Restoration: A Systematic Review and Network Meta-Analysis.

Chronic otitis media (COM) often leads to ossicular chain damage, necessitating ossiculoplasty for hearing restoration. Various prosthetic materials are available, including autologous grafts and synthetic materials like titanium, hydroxyapatite, and teflon. However, the comparative efficacy of these materials in ossiculoplasty remains unclear.

The effect of traffic noise on the hearing level of people on Karachi streets.

Objective: To study the effects of traffic noise on hearing ability of subjects prone to traffic noise exposure.

Method: A hospital based prospective study was performed comprising of 200 selected subjects significantly exposed to traffic noise. These included rickshaw drivers, traffic constables and shopkeepers in central business area.