Results 291 to 300 of about 105,746 (338)

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

Dependence of Middle Ear Gas Composition on Pulmonary Ventilation

Annals of Otology, Rhinology & Laryngology, 1997
The middle ear (ME) steady state gas composition resembles that of mixed venous blood. We changed arterial and venous blood gases by artificially ventilating anesthetized guinea pigs and measured simultaneous ME gas changes during spontaneous breathing, hyperventilation, and hypoventilation.
H, Mover-Lev, D, Levy, M, Luntz, M, Harell, A, Ar, J, Sadé   +5 more
openaire   +2 more sources

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
openaire   +2 more sources

Mechanical ventilation and middle ear effusions among tracheostomy-dependent children.

International Journal of Pediatric Otorhinolaryngology, 2022
Erin M. Wynings, H. Jaffal, Rachel St. John, Romaine F. Johnson, Stephen R. Chorney   +4 more
semanticscholar   +1 more source

Swimming unprotected with long‐shafted middle ear ventilation tubes

The Laryngoscope, 1985
AbstractPatients, parents, and physicians are all concerned about the risks of swimming unprotected with middle ear ventilation tubes. The risks have not previously been carefully quantified or correlated with the degree of swimming activity. In this study, 53 children with tympanometrically proven patent long‐shafted tubes were allowed to swim ...
openaire   +2 more sources

Vibroplasty combined with tympanic membrane reconstruction in middle ear ventilation disorders

Hearing Research, 2019
C. Müller, T. Zahnert, S. Ossmann, M. Neudert, M. Bornitz   +4 more
semanticscholar   +1 more source

Integrative oncology: Addressing the global challenges of cancer prevention and treatment

Ca-A Cancer Journal for Clinicians, 2022
Jun J Mao,, Msce, Lorenzo Cohen, Karen M Mustian   +2 more
exaly  

Palatoplasty decreases the re-insertion rate of middle ear ventilation tube in cleft palate children – A population-based birth cohort study

Acta Oto-Laryngologica, 2016
Chii-Yuan Huang, Chuan‐Song Wu, C. Tang, Mao-Che Wang, T. Kuo, T. Tu   +5 more
semanticscholar   +1 more source

Cholesteatoma in Relation to Middle-Ear Ventilation

2001
As is well known, middle-ear cholesteatoma is one of the most serious middle-ear inflammatory diseases. It invades deeply into the surrounding structures by absorbing the bone, causing various complications, and it sometimes recurs after surgery.
openaire   +1 more source

COVID-19 vaccine acceptance and hesitancy in low- and middle-income countries

Nature Medicine, 2021
Julio S Solís Arce, Shana S Warren, Niccolò F Meriggi   +2 more
exaly