system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Which of the following conditions causes maximum hearing loss
assistant
The correct answer is  CONDUCTIVE HEARING LOSS AVERAGE HEARING LOSS SEEN IN DIFFERENT LESIONS OF CONDUCTIVE APPARATUS 1. Complete obstruction of ear canal: 30 dB 2. Perforation of tympanic membrane (It varies and is directly propoional to the size of perforation): 10-40 dB 3. Ossicular interruption with intact drum: 54 dB 4. Ossicular interruption with perforation: 38 dB 5. Malleus fixation: 10-25 dB 6. Closure of oval window: 60 dB Note here that ossicular interruption with intact drum causes more loss than ossicular interruption with perforated drum. Ref:- Dhingra; pg num:-29