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Literature DB >> 6775623

The effect of CO2-breathing on cochlear blood flow.

Abstract

The cochlear blood flow was measured with the microsphere methods, before and during CO2-inhalation, in anesthetized rabbits. Different gas mixtures and exposure times were used. The greatest increase of cochlear blood flow was measured after 5 min inhalation of 7% CO2 in air (115%) and the least increase (44%) in animals breathing 7% CO2 in oxygen. The difference is explained as due to a vasoconstriction caused by a high oxygen tension counteracting the vasodilating effect of CO2.

Entities: Chemical Species

Mesh：

Substances：
Carbon Dioxide
Oxygen

Year: 1980 PMID： 6775623 DOI： 10.1007/bf00454230

Source DB: PubMed Journal: Arch Otorhinolaryngol ISSN： 0302-9530

13 in total

1. [Carbogen therapy of acute cochlear disorders].

Authors: D Dimov
Journal: Vestn Otorinolaringol Date: 1977 Mar-Apr

2. BEHAVIOR OF THE COCHLEAR BLOOD FLOW.

Authors: T MORIMITSU; K MATSUO; F SUGA
Journal: Ann Otol Rhinol Laryngol Date: 1965-03 Impact factor: 1.547

3. Diagnosis and treatment of fluctuant hearing loss.

Authors: J Shea
Journal: Laryngoscope Date: 1976-11 Impact factor: 3.325

4. Effect of CO2 on the perilymphatic oxygen tension in cats.

Authors: K Murata; U Fisch
Journal: Ann Otol Rhinol Laryngol Date: 1977 Mar-Apr Impact factor: 1.547

Review 5. Labyrinthine vasodilators.

Authors: J B Snow; F Suga
Journal: Arch Otolaryngol Date: 1973-05

6. The role of the adrenal medulla in the blood pressure response to carbon dioxide following hexamethonium.

Authors: J T Hamilton; L W Hersey; J L Twiss
Journal: Arch Int Pharmacodyn Ther Date: 1966-03

7. Oxygen toxicity; effects in man of oxygen inhalation at 1 and 3.5 atmospheres upon blood gas transport, cerebral circulation and cerebral metabolism.

Authors: C J LAMBERTSEN; R H DOUGH; D Y COOPER; G L EMMEL; H H LOESCHCKE; C F SCHMIDT
Journal: J Appl Physiol Date: 1953-03 Impact factor: 3.531

The effect of CO2-breathing on cochlear blood flow.

1. [Carbogen therapy of acute cochlear disorders].

2. BEHAVIOR OF THE COCHLEAR BLOOD FLOW.

3. Diagnosis and treatment of fluctuant hearing loss.

4. Effect of CO2 on the perilymphatic oxygen tension in cats.

Review 5. Labyrinthine vasodilators.

6. The role of the adrenal medulla in the blood pressure response to carbon dioxide following hexamethonium.

7. Oxygen toxicity; effects in man of oxygen inhalation at 1 and 3.5 atmospheres upon blood gas transport, cerebral circulation and cerebral metabolism.

8. [Therapy of sudden deafness with O2/CO2 inhalation (author's transl)].

9. The cochlear blood flow.

10. The effect of noise on cochlear blood flow in the conscious rabbit.

1. Lack of short-term autoregulation in the cochlear microcirculation in guinea pigs.