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Biomedical subjects

A O Owa

Publications and source records attributed to A O Owa.

5 recordsLinked to original sources

A middle-ear simulator for practicing prosthesis placement for otosclerosis surgery using ward-based materials.

Complications following stapedectomy are the most common cause of litigation involving otological cases in the USA. Manipulation and placement of the prosthesis during a stapedectomy may have a profound effect on the final hearing results. Concerns have been raised over the reduced number of cases, training of residents, and the maintenance of the necessary skills to achieve consistently good results. Temporal bone dissection is an important adjunct to developing the required skills to perform stapedectomies. However the reduced availability of specimens limits their use for teaching or practising the procedure. In order to circumvent these problems an inexpensive and easily constructed middle-ear simulator has been developed based on materials readily available in any ENT ward. It is believed that this might help trainees develop the necessary skills to master the procedure.

Humans↗

Eosinophilic angiocentric fibrosis as a cause of nasal obstruction.

We present the tenth case of Eosinophilic Angiocentric Fibrosis (EAF) in the english literature, which presented as nasal obstruction in a patient of Indian descent. The histopathological and clinical features of this underreported condition is discussed as well as other lesions that may show similar features to EAF.

Adult↗

Simple model for teaching myringotomy and aural ventilation tube insertion.

Aural ventilation tube insertion is the most common otological operation and is usually the first operation learnt by trainees. The limited supply of temporal bones as well as expensive commercial models hampers training in the procedure. This paper describes a simple solution making a model of the ear canal and drum out of materials available on an ENT ward.

Education, Medical, Continuing↗

Metastatic adenocarcinoma of the ethmoids in a patient with previous gastric adenocarcinoma: a case report.

Metastatic carcinoma of the ethmoids is very rare. Of the few cases reported in the literature, the majority are renal in origin. Although metastases from the gastrointestinal tract have been reported, there are no known cases of metastases from the stomach. We present a rare case of metastatic adenocarcinoma of the ethmoids in a patient previously treated for adenocarcinoma of the stomach and describe the possible mechanisms of spread. The patient had a craniofacial resection of the tumour but unfortunately died four weeks post-operatively from acute liver failure probably caused by a liver metastasis.

Adenocarcinoma↗