الفهرس 
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Abstract
Neonatal sepsis account for one third of the annual neonatal deaths around the world, which is estimated to be around a million per year.
99% of neonatal sepsis occurs in developing countries, due to poor perinatal infection control practice, making it a huge burden.
Some literatures said that through the process of neonatal sepsis, there is a change in the cerebral blood flow, which in return may have a role in perinatal brain damage, & both short & long term morbidity.
Therefore knowing the effect of neonatal sepsis on the cerebral blood flow, is important to allow more appropriate medical intervention, to favorably alter the clinical outcome.
Transcranial Doppler is a fast, easy, feasible, safe & bed side tool, which can be used to assess the changes in the cerebral blood flow, & for follow up together with transcranial ultrasound for detection of complications.
In our study we found that neonatal sepsis causes increase in Peak systolic velocity & decrease in the Resistive & Pulsatility index thus causing increase in the cerebral blood flow, which in turn showed increased incidence in Intraventricular hemorrhage among the sepsis group compared with the control group. Proving the theory of relation of neonatal sepsis & adverse neurological effect in neonates.