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  1. Article ; Online: Thresholds for identifying pathological intracranial pressure in paediatric traumatic brain injury

    Saeed Kayhanian / Adam M. H. Young / Ross L. Ewen / Rory J. Piper / Mathew R. Guilfoyle / Joseph Donnelly / Helen M. Fernandes / Matthew Garnett / Peter Smielewski / Marek Czosnyka / Shruti Agrawal / Peter J. Hutchinson

    Scientific Reports, Vol 9, Iss 1, Pp 1-

    2019  Volume 7

    Abstract: Abstract Intracranial pressure (ICP) monitoring forms an integral part of the management of severe traumatic brain injury (TBI) in children. The prediction of elevated ICP from imaging is important when deciding on whether to implement invasive ICP ... ...

    Abstract Abstract Intracranial pressure (ICP) monitoring forms an integral part of the management of severe traumatic brain injury (TBI) in children. The prediction of elevated ICP from imaging is important when deciding on whether to implement invasive ICP monitoring for a patient. However, the radiological markers of pathologically elevated ICP have not been specifically validated in paediatric studies. Here in, we describe an objective, non-invasive, quantitative method of stratifying which patients are likely to require invasive monitoring. A retrospective review of patients admitted to Cambridge University Hospital’s Paediatric Intensive Care Unit between January 2009 and December 2016 with a TBI requiring invasive neurosurgical monitoring was performed. Radiological biomarkers of TBI (basal cistern volume, ventricular volume, volume of extra-axial haematomas) from CT scans were measured and correlated with epochs of continuous high frequency variables of pressure monitoring around the time of imaging. 38 patients were identified. Basal cistern volume was found to correlate significantly with opening ICP (r = −0.53, p < 0.001). The optimal threshold of basal cistern volume for predicting high ICP ($$\ge $$ ≥ 20 mmHg) was a relative volume of 0.0055 (sensitivity 79%, specificity 80%). Ventricular volume and extra-axial haematoma volume did not correlate significantly with opening ICP. Our results show that the features of pathologically elevated ICP in children may differ considerably from those validated in adults. The development of quantitative parameters can help to predict which patients would most benefit from invasive neurosurgical monitoring and we present a novel radiological threshold for this.
    Keywords Medicine ; R ; Science ; Q
    Subject code 616 ; 610
    Language English
    Publishing date 2019-03-01T00:00:00Z
    Publisher Nature Publishing Group
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Continuous Multimodality Monitoring in Children after Traumatic Brain Injury-Preliminary Experience.

    Adam M H Young / Joseph Donnelly / Marek Czosnyka / Ibrahim Jalloh / Xiuyun Liu / Marcel J Aries / Helen M Fernandes / Matthew R Garnett / Peter Smielewski / Peter J Hutchinson / Shruti Agrawal

    PLoS ONE, Vol 11, Iss 3, p e

    2016  Volume 0148817

    Abstract: Introduction Multimodality monitoring is regularly employed in adult traumatic brain injury (TBI) patients where it provides physiologic and therapeutic insight into this heterogeneous condition. Pediatric studies are less frequent. Methods An analysis ... ...

    Abstract Introduction Multimodality monitoring is regularly employed in adult traumatic brain injury (TBI) patients where it provides physiologic and therapeutic insight into this heterogeneous condition. Pediatric studies are less frequent. Methods An analysis of data collected prospectively from 12 pediatric TBI patients admitted to Addenbrooke's Hospital, Pediatric Intensive Care Unit (PICU) between August 2012 and December 2014 was performed. Patients' intracranial pressure (ICP), mean arterial pressure (MAP), and cerebral perfusion pressure (CPP) were monitored continuously using brain monitoring software ICM+®,) Pressure reactivity index (PRx) and 'Optimal CPP' (CPPopt) were calculated. Patient outcome was dichotomized into survivors and non-survivors. Results At 6 months 8/12 (66%) of the cohort survived the TBI. The median (±IQR) ICP was significantly lower in survivors 13.1±3.2 mm Hg compared to non-survivors 21.6±42.9 mm Hg (p = 0.003). The median time spent with ICP over 20 mm Hg was lower in survivors (9.7+9.8% vs 60.5+67.4% in non-survivors; p = 0.003). Although there was no evidence that CPP was different between survival groups, the time spent with a CPP close (within 10 mm Hg) to the optimal CPP was significantly longer in survivors (90.7±12.6%) compared with non-survivors (70.6±21.8%; p = 0.02). PRx provided significant outcome separation with median PRx in survivors being 0.02±0.19 compared to 0.39±0.62 in non-survivors (p = 0.02). Conclusion Our observations provide evidence that multi-modality monitoring may be useful in pediatric TBI with ICP, deviation of CPP from CPPopt, and PRx correlating with patient outcome.
    Keywords Medicine ; R ; Science ; Q
    Subject code 150
    Language English
    Publishing date 2016-01-01T00:00:00Z
    Publisher Public Library of Science (PLoS)
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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