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Effects of increased cerebrospinal fluid pressure on cochlear and cerebral blood flow.
Eur Arch Otorhinolaryngol. 1993; 250(6):332-6.EA

Abstract

We investigated the effects of increased cerebrospinal fluid (CSF) pressure on cochlear blood flow (CoBF) and cerebral blood flow (CBF) in guinea pigs. CoBF and CBF were recorded simultaneously using two laser-Doppler flowmeters, and blood flow volume in each part of the cochlea and the brain was measured by the non-radioactive microsphere method. CoBF was reduced by increased CSF pressure but the reduction was not persistent. Although inner ear pressure was elevated to the same level as CSF pressure, CoBF was not decreased by the pressure elevation as much as was CBF. Our results suggest that CoBF is relatively resistant to increases in CSF pressure.

Authors+Show Affiliations

Suzuki T
Department of Otorhinolaryngology, Nagoya University School of Medicine, Japan.
Nakashima T
No affiliation info available
Yanagita N
No affiliation info available

MeSH

AnimalsBlood Flow VelocityBlood PressureCerebrospinal Fluid PressureCerebrovascular CirculationCochleaEndolymphGuinea PigsIntracranial PressureLaser-Doppler FlowmetryMicrospheresRegional Blood Flow

Pub Type(s)

Journal Article

Language

eng

PubMed ID

8260144

Citation

Suzuki, T, et al. "Effects of Increased Cerebrospinal Fluid Pressure On Cochlear and Cerebral Blood Flow." European Archives of Oto-rhino-laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated With the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery, vol. 250, no. 6, 1993, pp. 332-6.
Suzuki T, Nakashima T, Yanagita N. Effects of increased cerebrospinal fluid pressure on cochlear and cerebral blood flow. Eur Arch Otorhinolaryngol. 1993;250(6):332-6.
Suzuki, T., Nakashima, T., & Yanagita, N. (1993). Effects of increased cerebrospinal fluid pressure on cochlear and cerebral blood flow. European Archives of Oto-rhino-laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated With the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery, 250(6), 332-6.
Suzuki T, Nakashima T, Yanagita N. Effects of Increased Cerebrospinal Fluid Pressure On Cochlear and Cerebral Blood Flow. Eur Arch Otorhinolaryngol. 1993;250(6):332-6. PubMed PMID: 8260144.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of increased cerebrospinal fluid pressure on cochlear and cerebral blood flow. AU - Suzuki,T, AU - Nakashima,T, AU - Yanagita,N, PY - 1993/1/1/pubmed PY - 1993/1/1/medline PY - 1993/1/1/entrez SP - 332 EP - 6 JF - European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery JO - Eur Arch Otorhinolaryngol VL - 250 IS - 6 N2 - We investigated the effects of increased cerebrospinal fluid (CSF) pressure on cochlear blood flow (CoBF) and cerebral blood flow (CBF) in guinea pigs. CoBF and CBF were recorded simultaneously using two laser-Doppler flowmeters, and blood flow volume in each part of the cochlea and the brain was measured by the non-radioactive microsphere method. CoBF was reduced by increased CSF pressure but the reduction was not persistent. Although inner ear pressure was elevated to the same level as CSF pressure, CoBF was not decreased by the pressure elevation as much as was CBF. Our results suggest that CoBF is relatively resistant to increases in CSF pressure. SN - 0937-4477 UR - https://www.unboundmedicine.com/medline/citation/8260144/Effects_of_increased_cerebrospinal_fluid_pressure_on_cochlear_and_cerebral_blood_flow_ DB - PRIME DP - Unbound Medicine ER -