Chapter 2 42 Table 1: Basic demographics and indications for BAHI Number of Patients’ (%) Total 47 100 Male 27 57 Female 20 43 Age Years 9.5 (4-16.3) Type of hearing loss Congenital 66 Conductive Hearing loss 29 62 Sensorineural Hearing loss 1 2 Mixed 1 2 Acquired 34 Conductive Hearing loss 14 30 Sensorineural Hearing loss 2 4 Aetiology of hearing loss CSOM 18 38 Bilateral Microtia 7 15 Unilateral Microtia 6 13 Microtia and Atresia 5 11 OC Dysmorphism 5 11 Profound SNHL (dead ear) 3 6 Mixed Hearing loss 1 2 Canal Stenosis 1 2 Secondary to cCHL 1 2 Table 2: Associated medical conditions. Associated conditions Number of patients % Chromosomal 14 30 Hemifacial microsomia 4 9 CHARGE 3 6 Cleft lip palate 3 6 Nagar syndrome 1 2 Aperts 1 2 Goldenhar syndrome 1 2 Branchio-oto-renal syndrome 1 2 Treacher Collins syndrome 1 2 Total 29 62
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