CONTINUOUS POSITIVE AIRWAY PRESSURE BREATHING INCREASES CEREBRAL BLOOD-FLOW VELOCITY IN HUMANS

Authors
HARING HP HORMANN C SCHALOW S BENZER A
Citation
Hp. Haring et al., CONTINUOUS POSITIVE AIRWAY PRESSURE BREATHING INCREASES CEREBRAL BLOOD-FLOW VELOCITY IN HUMANS, Anesthesia and analgesia, 79(5), 1994, pp. 883-885
Citations number
16
Categorie Soggetti
Anesthesiology
Journal title
Anesthesia and analgesia → ACNP
ISSN journal
00032999
Volume
79
Issue
5
Year of publication
1994
Pages
883 - 885
Database
ISI
SICI code
0003-2999(1994)79:5<883:CPAPBI>2.0.ZU;2-J
Abstract
The effect of a continuous positive airway pressure (CPAP) of 12 cm H2 O on mean middle cerebral artery flow velocity (CBFV) was studied in n ine human volunteers by means of transcranial Doppler sonography (TCD) . During CPAP breathing, CBFV increased (45 +/- 9 vs 59 +/- 11 cm/s;P < 0.001; mean +/- SD), and pulsatility index (PI) decreased (0.87 +/- 0.1 vs 0.74 +/- 0.2; P < 0.05), indicating an increase in cerebral blo od flow due to cerebral vasodilation. This phenomenon should be taken into account when CPAP is applied to patients with intracranial diseas e or when assessing CBFV patterns of patients during CPAP respiration.