Biomedical subjects

C Andaz

Publications and source records attributed to C Andaz.

4 recordsLinked to original sources

PubMed1993

An unusual cause of benign paroxysmal positional vertigo.

Benign paroxysmal positional vertigo (BPPV) is a self-limiting condition characterized by vertigo and nystagmus induced by certain head positions. The most common causes of BPPV are post-traumatic following head injury and post-viral labyrinthitis. We present an interesting case of BPPV following an otherwise uneventful neurosurgical removal of a parietal osteoma using hammer and chisel. Caution should be exercised during such procedures as disabling vertigo can result for a considerable period of time.

Adult↗

PubMed1991

Metastatic seminoma of the sphenoid sinus.

Metastatic tumour of the sphenoid sinus from distant primary sites are rare. If sphenoid involvement from adjacent structures is excluded there have been 26 reported cases of metastatic sphenoid sinus tumours. Seminoma metastatizing to other paranasal sinuses has been reported but a careful literature search did not reveal this occurring previously in the sphenoid sinus.

Adult↗

PubMedDate not supplied

An in vitro study to determine efficacy of different wax-dispersing agents.

An in vitro study was performed to compare the relative efficacy of a number of aqueous- and organic-based wax-dispersing preparations. Water, which was originally intended to be a control, surprisingly proved to be the most effective, whilst olive oil appeared to be almost totally ineffective as a wax dispersant. In view of the relatively high cost of commercially available preparations, these results have significant clinical potential.

Arachis↗

PubMedDate not supplied

Nonorganic hearing loss in children--a 2-year study.

Nonorganic hearing loss or pseudohypacusis is a condition in which there is an apparent hearing loss without any evidence of an organic cause. In a 2-year period, 43 children were seen in our department with this diagnosis. Thirty-three of them were female and 10 were male. Their hearing loss varied from 30 dB HL to 100 dB HL. The diagnosis made on clinical impression was confirmed using the ascending and the descending mode pure tone audiometry, tympanometry, stapedial reflexes and speech audiometry. Explanation, encouragement and reassurance were the only treatment required in these patients. All the 43 patients showed normal pure tone thresholds within a period of 1 year.

Acoustic Impedance Tests↗