! ORL via Alexandros G.Sfakianakis on Inoreader: Modified Radical Mastoidectomy with Type III Tympanoplasty: Revisited

! ORL via Alexandros G.Sfakianakis on Inoreader

Modified Radical Mastoidectomy with Type III Tympanoplasty: Revisited Aug 22nd 2015, 04:16 Abstract Chronic suppurative otitis media with cholesteatoma is a fairly common condition presenting in any ENT clinic and its surgery remains one of the most challenging surgeries in otology. The primary goal of cholesteatoma surgery is to clear the disease and produce a safe and stable ear but there is still debate on whether these goals are best achieved by canal wall down or canal wall up procedures. A retrospective study was done to access benefits of modified radical mastoidectomy (MRM) with type III tympanoplasty in terms of eradication of disease and hearing improvement. It consisted of 140 patients of chronic otitis media (attico-antral) who underwent MRM with type III tympanoplasty in 156 ears in a tertiary care centre. Temporalis fascia graft was used for tympanoplasty. Results were analyzed in terms of condition of cavity, condition of graft and gain in hearing. The study showed significant improvement in gain in air conduction (21.24 dB) and closure of AB gap (15.62 dB). In the Indian population with low socio-economic status and poor follow up, single stage canal wall down procedure (MRM) provides maximum benefit to patients in terms of eradication of disease and hearing improvement.

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! ORL via Alexandros G.Sfakianakis on Inoreader: Enhancing the reproducibility of ocular vestibular evoked myogenic potentials by use of a visual target originating from a head-mounted laser

! ORL via Alexandros G.Sfakianakis on Inoreader

Enhancing the reproducibility of ocular vestibular evoked myogenic potentials by use of a visual target originating from a head-mounted laser Aug 22nd 2015, 00:10 Abstract Ocular vestibular evoked myogenic potentials (oVEMPs) represent extraocular muscle activity in response to vestibular stimulation. oVEMP amplitudes are known to increase with increasing upward gaze angle, while the patient fixates a visual target. We investigated two different methods of presenting a visual target during oVEMP recordings. 57 healthy subjects were enrolled in this study. oVEMPs were elicited by 500 Hz air-conducted tone bursts while the subjects were looking upward at a marking which was either fixed on the wall or originated from a head-mounted laser attached to a headband, in either case corresponding to a 35° upward gaze angle. oVEMP amplitudes and latencies did not differ between the subjects looking at the fixed marking and the ones looking at the laser marking. The intra-individual standard deviation of amplitudes obtained by two separate measurements for each subject, however, as a measure of test–retest reliability, was significantly smaller for the laser headband group (0.60) in comparison to the group looking at the fixed marking (0.96; p = 0.007). The intraclass correlation coefficient revealed better test–retest reliability for oVEMP amplitudes when using the laser headband (0.957) than using the fixed marking (0.908). Hence, the use of a visual target originating from a headband enhances the reproducibility of oVEMPs. This might be due to the fact that the laser headband ensures a constant gaze angle and rules out the influence of small involuntary head movements on the gaze angle.

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