The effect of continuous positive airway pressure on cerebral blood flow velocity in awake volunteers

Authors
Bowie, RA O'Connor, PJ Hardman, JG Mahajan, RP
Citation
Ra. Bowie et al., The effect of continuous positive airway pressure on cerebral blood flow velocity in awake volunteers, ANESTH ANAL, 92(2), 2001, pp. 415-417
Citations number
11
Categorie Soggetti
Aneshtesia & Intensive Care","Medical Research Diagnosis & Treatment
Journal title
ANESTHESIA AND ANALGESIA
ISSN journal
00032999 → ACNP
Volume
92
Issue
2
Year of publication
2001
Pages
415 - 417
Database
ISI
SICI code
0003-2999(200102)92:2<415:TEOCPA>2.0.ZU;2-O
Abstract
We measured the effect of 5 and 10 cm H2O continuous positive airways press ure (CPAP) on middle cerebral artery blood flow velocity (FV) in 15 awake, healthy volunteers by using transcranial Doppler ultrasonography. Mean, sys tolic, and diastolic FV plus pulsatility index were recorded. No significan t change in any measured variable was observed with the application of 5 or 10 cm H2O CPAP. These results are in contrast to those of a previous study , which found a significant increase in mean FV and a decrease in pulsatili ty index during the application of 12 cm H2O CPAP.