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Cerebral hemodynamics and oxygenation after serial CSF drainage in infants with PHVD

Adriana A E M van Alfen-van der Velden1, Jeroen C W Hopman, John H G M Klaessens

  • 1Subdivision Neonatology, Department of Pediatrics, Radboud University, Nijmegen Medical Centre, The Netherlands. J.vanAlfen@cukz.umcn.nl

Brain & Development
|May 30, 2007
PubMed

Insights

Serial cerebrospinal fluid (CSF) drainage improved cerebral blood flow and oxygenation in infants with posthemorrhagic hydrocephalus with venous دکتر (PHVD). These findings highlight the benefits of regular CSF removal for enhancing brain perfusion in affected infants.

Area of Science:

  • Neonatal Neurology
  • Pediatric Neurosurgery
  • Cerebrovascular Physiology

Background:

  • Posthemorrhagic hydrocephalus with venous دکتر (PHVD) affects cerebral hemodynamics in infants.
  • Cerebrospinal fluid (CSF) drainage is a common intervention for managing hydrocephalus.
  • Assessing the impact of serial CSF drainage on cerebral oxygenation and hemodynamics is crucial for optimizing treatment.

Purpose of the Study:

  • To evaluate consecutive changes in cerebral oxygenation and hemodynamics following serial CSF drainage via a subcutaneous ventricular catheter reservoir (SVCR) in infants with PHVD.
  • To determine the temporal effects of CSF drainage on cerebral blood volume (CBV) and cerebral blood (cHbD).
  • To analyze alterations in cerebral blood flow velocities and pulsatility index (PI) after CSF drainage.

Main Methods:

  • Near-infrared spectrophotometry (NIRS) was used to assess cerebral blood volume (CBV) and cerebral blood (cHbD).
  • Doppler ultrasound measured time-averaged peak flow velocity (TAPFV), end-diastolic flow velocity (EDFV), peak systolic flow velocity (PSFV), and pulsatility index (PI).
  • Longitudinal data analysis employed linear mixed models in seven infants with PHVD over the first week post-SVCR placement.

Main Results:

  • CSF drainage led to a significant increase in cerebral blood volume (CBV) at all measurement points.
  • Cerebral blood (cHbD) and end-diastolic flow velocity (EDFV) increased significantly, while pulsatility index (PI) decreased on the day of SVCR placement.
  • Baseline Doppler variables showed consecutive improvement in the first week after serial CSF removal.

Conclusions:

  • Frequent CSF drainage via SVCR results in consecutive improvements in cerebral perfusion and oxygenation in infants with PHVD.
  • Early and regular CSF drainage appears beneficial for optimizing cerebral hemodynamics in this population.
  • Serial CSF drainage demonstrates a positive impact on cerebral physiological parameters in infants with PHVD.

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