trisiiicate is not now the alkali of choice, but there are alternatives. I believe that metoclopramide, by increasing lower oesophageal sphincter tone, hastening gastric emptying and preventing vomiting, is an appropriate drug to use. These young women are usually otherwise healthy, often undergoing an investigative procedure. It is imperative that the anaesthetic technique is designed to keep ...

OBJECTIVES/HYPOTHESIS Throughout the latter portion of the 19th and early 20th centuries, pneumomassage devices were widely used by otologists to treat a variety of ear diseases. The so-called eardrum massagers produced a regular, repetitive, oscillatory movement through modifying the air pressure in the ear canal. The goal of this study was to trace the invention, clinical use, technological d...

In order to better understand signal propagation in the ear, a time-domain model of the tympanic membrane (TM) and of the ossicular chain (OC) is derived for the cat. Ossicles are represented by a two-port network and the TM is discretized into a series of transmission lines, each one characterized by its own delay and reflection coefficient. Volume velocity samples are distributed along the ea...

Otitis media occurs along a continuum. For example, otitis media with effusion characterized by fluid pathology can lead to chronic otitis media plus chronic mastoiditis, characterized by the presence of intractable tissue pathology such as cholesteatoma, cholesterol granuloma or granulation tissue. The literature defines chronic otitis media as having a tympanic membrane perforation and otorrh...

An acoustic stimulus is presented to the external auditory canal; energy is transferred from the ear canal through the middle ear, some of which is reflected and some absorbed by the tympanic membrane and external ear structures. The premise behind the immittance instrumentation used to measure the acoustic reflex is the ability to accurately measure changes in reflected energy occurring from s...

Introduction: The recurrence rate after tympanoplasty is variable between 0% and 50%. The causes of failure may be different and frequently interrelated, making the surgical choice difficult and the prognosis not always favourable. In this study, we analysed recurrence rate and the possible causes of failure of tympanoplasty in the treatment of tympanic perforations.   Materials and Methods: Th...

TOPICAL ANESTHESIA OF THE TYMPANIC MEMBRANE An experimental animal study University of Umeå Medical Dissertations Abstract No 200 — ISSN 0346-6612 Sten-Hermann Schmidt, M.D. Department of Oto-Rhino-Laryngology & Head and Neck Surgery, University of Umeå, Umeå, Sweden Myringotomy plays an important role in otological therapy. The procedure requires an efficient anesthesia, which can be obtained ...