Objective To study the value of bedside transcranial doppler (TCD) in evaluating the level of intracranial pressure (ICP) in critically ill pediatric patients with nervous system disease in the pediatric intensive care unit (PICU). Methods A prospective analysis was performed on the critically ill pediatric patients with nervous system disease who were admitted to the PICU of Shengjing Hospital, China Medical University, from November 2020 to November 2021. Bedside TCD was performed on all patients, and pulsatility index (PI) was calculated. Bedside lumbar puncture was performed to measure ICP. A Pearson correlation analysis was used to assess the correlation between PI and ICP. The receiver operating characteristic (ROC) curve was used to assess the value of PI in the diagnosis of elevated ICP (≥20 mm Hg). Results A total of 56 children were included in the study. The top three primary diseases were intracranial infection (24 children, 43%), traumatic brain injury (TBI) (11 children, 20%), and cerebrovascular disease (5 children, 9%). The Pearson correlation analysis showed that PI was positively correlated with ICP (r=0.536, P<0.001). The subgroup analysis based on primary disease showed that in the TBI group, PI was positively correlated with ICP (r=0.655, P=0.029), while no significant correlation between PI and ICP was observed in the intracranial infection group (r=0.324, P=0.122). The ROC curve analysis showed that PI had an area under the curve of 0.828 (95%CI: 0.677-0.979) in predicting ICP≥20 mm Hg, with a sensitivity of 83.3% and a specificity of 79.5% at the optimal cut-off value of 1.255. Conclusions TCD technology for ICP monitoring can predict the change in ICP in critically ill pediatric patients with nervous system disease, suggesting it is useful for treatment options and prognosis evaluation. Citation:Chinese Journal of Contemporary Pediatrics, 2022, 24(9): 973-978
Key words
Transcranial doppler ultrasound /
Pulsatility index /
Intracranial pressure /
Child
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