Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Comparative Study
. 1982 Jul;101(1):94-8.
doi: 10.1016/s0022-3476(82)80194-7.

Cerebral blood flow velocity in infants with polycythemia and hyperviscosity: effects of partial exchange transfusion with Plasmanate

Comparative Study

Cerebral blood flow velocity in infants with polycythemia and hyperviscosity: effects of partial exchange transfusion with Plasmanate

T S Rosenkrantz et al. J Pediatr. 1982 Jul.

Abstract

To determine if there are significant changes in cerebral blood flow velocity and vascular resistance in neonates with polycythemia and hyperviscosity, 11 such infants were studied before and after partial exchange transfusion with Plasmanate. Seven matched control infants were also studied. Blood flow velocity of the anterior cerebral artery was measured with a bidirectional continuous waveform Doppler velocimeter. Blood flow and vascular resistance were calculated from the velocity tracings, using the area under the velocity curve and the Pulsatility Index. Reduction in hematocrit and viscosity produced significant increases in blood flow velocity and a reduction in vascular resistance. The postexchange values were similar to those of the control group. These results indicate that infants with polycythemia and hyperviscosity have decreased cerebral blood flow velocity and increased vascular resistance which normalize after partial Plasmanate exchange transfusion.

PubMed Disclaimer

Publication types

MeSH terms

LinkOut - more resources