Results 121 to 130 of about 11,330 (156)

Ventilation scintigraphy of the middle ear.

Journal of nuclear medicine : official publication, Society of Nuclear Medicine, 1997
In this study, an attempt was made to administer radioactive gas into the tympanic cavity to measure initial gas trappings as well as clearance from the middle ear to evaluate eustachian tube function.Twenty-eight patients were administered 50 MBq 133Xe gas.
W, Brenner, K H, Bohuslavizki, B, Kroker, W, Peters, H, Wolf, C, Sippel, M, Clausen, G S, Godbersen, E, Henze   +8 more
openaire   +1 more source

Middle ear ventilation with the castelli membrane tube.

The Laryngoscope, 1981
AbstractThis report evaluates the use of the Castelli type membrane tympanostomy tube in combination with adenoidectomy or adenotonsillectomy. One hundred and sixty two ears were studied.Children with mucoid or seromucoid fluid only were included. The ears were unprotected during swimming, bathing, etc.
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Middle Ear Ventilation after Acute Otitis media

ORL, 2010
The investigation includes 43 children (82 ears) with acute otitis media who were treated with paracentesis and antibiotics. The middle ear pressure was measured 7 days, 14 days, 1 month, and 2 months after the otitis. A follow-up examination was performed 4–12 months after the otitis.
N, Leth, M, Tos
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Middle Ear Irrigation During Insertion of Ventilation Tubes

Auris Nasus Larynx, 1985
Tympanostomy and insertion of ventilation tubes has become one of the most commonly performed operations in the United States. Most authors reporting complications of this procedure describe a postoperative rate of otorrhea in the range of 10-20% with some reports much higher.
T J, Balkany, I K, Arenberg, R L, Steenerson   +2 more
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Tympanomaxillary Shunt: A New Method of Middle Ear Ventilation

Archives of Otolaryngology - Head and Neck Surgery, 1969
INSUFFICIENT ventilation through the eustachian tube is one of the main causes of middle ear pathology and hearing loss. A dysfunction of the tube is always present in chronic serous otitis and very often in chronic otitis, in which case the result of a tympanoplastic procedure may depend on the ventilatory capacity of the tube.
B, Drettner, L, Ekvall
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The Middle Ear Gas Composition in Air-Ventilated Dogs

Acta Oto-Laryngologica, 1980
The middle ear gas composition has been examined in 5 air-ventilated dogs under sodium thiopentone anesthesia. The gas samples were obtained by transtympanic puncture and analysed by gas chromatography. The following mean +/- S.D. gas composition was obtained: N2 83.2 +/- 5.0; O2 12.1 +/- 2.2; and CO2 4.7 +/- 0.7.
E, Ostfeld, J, Blonder, M, Crispin, A, Szeinberg   +3 more
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Study of the Ventilation of Middle Ear Using Radioactive Xenon

Annals of Otology, Rhinology & Laryngology, 1976
The greatest contribution of nuclear medicine has been to make possible dynamic measurements of regional function. It is conceivable that if this technology could be successfully used to measure the ventilation and clearance of the middle ear, answers to some of the most crucial problems in otology may be found.
F R, Kirchner, R, Robinson, R F, Smith
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Effects of Large‐Bore Middle Ear Ventilation Tubes

Otolaryngology–Head and Neck Surgery, 1980
Patients with chronic otitis media that did not respond to conventional treatment were studied for the types and incidence of complications from the use of large‐bore tubes inserted into their ears. The most common complication was otorrhea (41%, 50 of 123 ears). Permanent perforation occurred in 25% (17/68 ears).
J J, Holt, S G, Harner
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Ventilating Tubes in the Middle Ear: Long-term Observations

Archives of Otolaryngology - Head and Neck Surgery, 1984
This follow-up study is of the same patients we studied in 1976. Then we thought the results were unsatisfactory in 20.9% of the ears treated with ventilating tubes. The hearing losses varied from 25 to 60 dB and chronic otitis media developed in 7.7% of the cases.
T, Gundersen, F M, Tonning, K H, Kveberg
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Gas composition of the normal and the ventilated middle ear cavity

Scandinavian Journal of Clinical and Laboratory Investigation, 1987
Epidemiologic and controlled studies indicate that late minimal hearing impairment is a sequelae after the use of a ventilation tube in early childhood. The patho-physiology is unknown, but abnormal middle ear gas composition might be important. Therefore it is mandatory to measure middle ear gas composition in order to understand the gas exchange in ...
J U, Felding, J B, Rasmussen, T, Lildholdt   +2 more
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