The Ultrasonography Capabilities of Cerebrospinal Fluid Dynamics in Neonates (literature Review and Own Observations)

Objective. Investigate doppler sonographic capabilities in the assessment of cerebrospinal fluid flow dynamics in infants with central nervous system disorders.

Materials and Methods. The article presents data on physiology of synthesis and circulation of cerebrospinal fluid (CSF), its normal composition, and features in the neonatal period. Since the 1990 the doppler researches of cerebrospinal fluid dynamics has been analyzed. 

 Results. The variants of cerebrospinal fluid flow doppler imaging phenomenon in neonates are presented in color and pulse wave modes, furthermore the types of synchronization of the cerebrospinal fluid flow in various pathological conditions. The publication highlights the magnetic resonance imaging (MRI) results obtained in recent years in the study of cerebrospinal fluid dynamics, as well as experimental data on the use of doppler technologies in assessing fluid flows within catheters, including monitoring the functioning of ventriculoperitoneal shunts. Own doppler observations of studying phenomenon are demonstrated.

Conclusion. The Doppler study of cerebrospinal fluid flows has a certain diagnostic value in neonates with cerebral hemorrhage and inflammation; however, a number of controversial issues remain:

— the low detection rate of phenomenon is unclear in changes of cerebrospinal fluid rheological properties in intracranial hemorrhages and meningitis;

— various patterns of cerebrospinal fluid movement synchronization are not completely soluble;

— experimental data do not completely correspond to clinical experience, which determines the perspectives for further researches. 

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