OBJECTIVE To assess the accuracy of threshold using the multiple auditory steady state responses (MASSR) to bone conduction stimuli in a group of patients with conductive hearing loss. METHOD Thirty patients with conductive hearing loss were assessed by MASSR and by pure-tone audiometry, and compared the results of these two methods. RESULT The thresholds of MASSR and those of PTA were sign...

Studies in experimental diabetic rat attribute the acute reversible nerve conduction defect as well as the early structural abnormalities of the node of Ranvier and myelinated axons to changes in nerve metabolism secondary to hyperglycaemia and activation of the pol yo1 pathway.’-8 The early readily reversible slowing of nerve conduction velocity in the diabetic rats correlates with a decrease ...

The occurrence of oval window atresia is a rare anomaly with conductive hearing loss. Traditional atresia surgeries involve challenging surgical techniques with risks of irreversible inner ear damage. Recent reports on Bonebridge (Medel, Innsbruck, Austria), a novel implantable bone conduction hearing aid system, assert that the device is safe and effective for conductive hearing loss. We prese...

BACKGROUND Aim of the present study was to evaluate prognostic factors, in particular standard laboratory parameters, for better outcome after idiopathic sudden sensorineural hearing loss (SSNHL). METHODS Using a retrospective review, 173 patients were included presenting between 2006 and 2009 with unilateral SSNHL, ≥30 dB bone conduction in three succeeding frequencies between 0.125 to 8 kHz...

A case report is presented of a 33-year-old woman who awoke with distal paresthesias, mild incoordination, and progressive weakness. Examination 3 days later demonstrated weakness of the extremities, which was greater in distal muscles than in proximal ones! mild facial weakness, distal vibratory loss, and areflexia. Electrodiagnostic studies provided evidence of an acquired demyelinating polyr...

The importance of understanding the energy loss specifics by cathode for vacuum arc metallic plasma generation and its applications were emphasized. To this end, heat conduction losses per unit current characterized effective voltage uef, which is weakly dependent on current. In paper, a physical model mathematical approach developed to describe dissipation due in body, heated outflowed from ad...

Myelinated fibers are organized into distinct domains that are necessary for saltatory conduction. These domains include the nodes of Ranvier and the flanking paranodal regions where glial cells closely appose and form specialized septate-like junctions with axons. These junctions contain a Drosophila Neurexin IV-related protein, Caspr/Paranodin (NCP1). Mice that lack NCP1 exhibit tremor, ataxi...

A case report is presented of a 33-year-old woman who awoke with distal paresthesias, mild incoordination, and progressive weakness. Examination 3 days later demonstrated weakness of the extremities, which was greater in distal muscles than in proximal ones, mild facial weakness, distal vibratory loss, and areflexia. Electrodiagnostic studies provided evidence of an acquired demyelinating polyr...

error light which indicates arrhytbmias or loss of pacing; an oscilloscope with a 25 mm/s sweep which displays the electrocardiogram and a 650 mm/s sweep for the conduction signal; a variable time width window triggered by the atrial pacing stimulus which is set to occur during the isoelectric PR segment allowing artefact outside this range to be excluded; and a tripolar electrode probe which d...