UNLABELLED Infants should be submitted to hearing screening upon birth, and for the results to be complete, it is necessary to assess middle ear conditions. OBJECTIVE To check whether the type of breastfeeding in infants between zero and four months can impact middle ear conditions my means an ENT assessment and acoustic immittance comparing neonates who were submitted to hearing screening wi...

A simple method for the synthesis of irrational immittances J(Z(s)), based on infinite cascades of balanced symmetric lattices, is presented. This approach is applicable to both analog and digital implementations. The method is illustrated by physical realizations of J(L s), J( 1 /C s) and the irrational number Ja. As an obvious extension, a physical realization for the fractional-step delay z ...

Three acoustic admittance measurements (tympanometric peak pressure, peak compensated static acoustic admittance, and tympanometric width) were compared across seven commercially available acoustic immittance systems. Forty-nine adult subjects (45 females and 4 males), 16 to 50 years of age (mean = 27.7 years), with normal middle ear function participated in this investigation. Small but statis...

the aim of the current study is to investigate hearing function in patients with allergic rhinitis. fifty-eight patients with positive skin prick test (group 1) (116 ears) and    31 subjects with negative skin prick test (62 ears) as group 2 were included. pure tone audiometry at 250,500, 1000, 2000, 4000 and 8000 hz and immittance measures, including tympanometry and acoustic reflex tests, wer...

This case was selected to highlight the importance of the test battery approach in the assessment of a child with auditory processing deficits. The utility of behavioral, electrophysiologic, acoustic immittance, and evoked otoacoustic emission procedures, as well as the problems associated with interpreting these multiple measures with differing results, is discussed. This case was confounded b...

The aim of the current study is to investigate hearing function in patients with allergic rhinitis. Fifty-eight patients with positive skin prick test (Group 1) (116 ears) and 31 subjects with negative skin prick test (62 ears) as group 2 were included. Pure tone audiometry at 250, 500, 1000, 2000, 4000 and 8000 Hz and immittance measures, including tympanometry and acoustic reflex tests, were ...