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Pulsatile flow pattern in cerebral arteries during cardiopulmonary bypass. An evaluation based on transcranial Doppler ultrasound

Kaps, M.; Haase, A.; Mulch, J.; Stertmann, W.A.; Thiel, A.

Journal of Cardiovascular Surgery 30(1): 16-19

1989

ISSN/ISBN: 0021-9509
PMID: 2494188
Document Number: 334994
Pulsatile wave patterns in basal cerebral arteries were studied by means of transcranial Doppler ultrasound (TCD) in 11 patients undergoing cardiopulmonary bypass (CPB) surgery. Different physiological states and technical parameters were demonstrated influencing wave forms delivered from a pulsatile CPB roller pump. The results gave evidence of the variability of pulsatile perfusion which may explain the inconsistency in the literature concerning its effectiveness in preserving tissue function. TCD proved to be a useful approach to define pulsatility of cerebral blood flow during CPB.

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