Effects of bolus tube feeding on cerebral blood flow velocity in neonates
Division of Neonatology, Department of Pediatrics,
University of Heidelberg, D-69120 Heidelberg, Germany
Correspondence to: Dr Mathias Nelle.
Accepted 19 September 1996
AIM
To study continuously cerebral blood flow
velocity in the middle cerebral artery before, during, and after tube
feeding in neonates.
METHODCerebral blood flow velocity was measured
in 14 neonates using a Doppler ultrasound device. Blood pressure,
respiration, and oxygen saturation were monitored.
RESULTSMean blood flow velocity decreased from 37 cm/s before feeding to 33 cm/s (P<0.001) 5 to 11 minutes after
feeding. Prefeeding values were reached after 17 minutes. Arterial
blood pressure, respiration patterns, and oxygen saturation did not
change significantly during the study period.
CONCLUSIONTube feeding in preterm infants may
decrease cerebral perfusion, despite unchanged blood pressure and
unchanged oxygen saturation.
© 1997 by Archives of Disease in Childhood
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