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Published on: October 17, 2017
Intracranial pressure trajectories and functional outcomes in pediatric intracranial hemorrhage: a group-based
Lijuan Zhang1, Xiaomin Cui1, Ming Zhang1
1Department of Surgical Intensive Care Unit, Children's Hospital of Nanjing Medical University, No.72 Guangzhou Road, Nanjing, 210008, Jiangsu Province, China.
Insights
Monitoring intracranial pressure (ICP) in pediatric patients with intracranial hemorrhage (ICH) is vital. This study identified distinct ICP trajectory patterns, revealing that certain dynamic ICP patterns are linked to poor neurologic outcomes.
Area of Science:
- Pediatric Neurology
- Neurocritical Care
- Clinical Outcomes Research
Background:
- Intracranial pressure (ICP) is critical for outcomes in pediatric intracranial hemorrhage (ICH).
- Existing research primarily uses static ICP measurements, lacking insight into longitudinal patterns.
Purpose of the Study:
- To identify distinct intracranial pressure (ICP) trajectory patterns in pediatric patients with intracranial hemorrhage (ICH).
- To assess the impact of these ICP patterns on clinical outcomes.
- To explore associations between ICP dynamics and six-month functional outcomes.
Main Methods:
- Group-based trajectory modeling (GBTM) was used to analyze hourly ICP data from pediatric ICH patients over four days.
- Short-term ICP fluctuations (ΔICP) were calculated to assess ICP dynamics.
- Multivariable logistic regression analyzed associations between ICP trajectories and six-month outcomes.
Main Results:
- Five distinct ICP trajectories were identified in 201 pediatric ICH patients.
- Significant differences were observed in mechanical ventilation, vasoactive agent use, pupil reactivity, craniectomy, ICP values, ΔICP variability, GCS, and pGOSE scores across trajectories.
- The 'High-Fluctuating' and 'Mid-Range Stable with Variability' ICP trajectory groups showed significantly higher odds of poor six-month outcomes.
Conclusions:
- Substantial heterogeneity exists in ICP trajectories among children with ICH.
- Three identified ICP trajectory patterns are significantly associated with poor neurologic outcomes.
- Characterizing dynamic ICP subtypes can aid in early risk stratification and understanding ICP regulation.
Abstract:
Monitoring the dynamic changes in intracranial pressure (ICP) is crucial for assessing clinical outcomes in pediatric intracranial hemorrhage (ICH). However, the ICP trajectory patterns remain unknown. We aim to identify distinct ICP trajectory patterns in pediatric ICH and assess their impact on clinical outcomes. Pediatric ICH population were enrolled in Jiangsu Pediatric Medical Center. We utilized group-based trajectory modeling (GBTM) to identify distinct hourly ICP trajectories from the initiation of ICP monitoring up to the fourth day. The ΔICP was calculated to capture short-term fluctuations in ICP. Both the ICP trajectory patterns and ΔICP values were analyzed to assess ICP dynamics. Clinical characteristics were compared across the identified trajectory groups to explore potential differences. Multivariable logistic regression analyses were performed to investigate their associations with six-month functional outcomes, with adjustment for potential confounders. A total of 201 eligible patients were included in the study. GBTM identified five distinct ICP trajectories, which differed significantly in terms of mechanical ventilation, vasoactive agent use, pupil reactivity, craniectomy, initial, maximum, and median ICP, as well as ΔICP variability, Glasgow Coma Scale (GCS), and six-month Pediatric Glasgow Outcome Scale-Extended (pGOSE) scores. Compared with the "Low-Stable" group, patients in the "High-Fluctuating" and "Mid-Range Stable with Variability" groups had significantly higher odds of poor six-month outcomes (OR 24.28, 95% CI 2.91-202.90; OR 9.02, 95% CI 1.76-46.35, respectively).
Conclusions:
This study reveals substantial heterogeneity in ICP trajectories among children with ICH and identifies three patterns associated with poor neurologic outcomes. Characterizing dynamic ICP trajectory subtypes may assist in early risk stratification and provide insight into ICP regulation patterns.
What Is Known:
• Intracranial pressure (ICP) levels are linked to outcomes in pediatric intracranial hemorrhage (ICH). • Current understanding is based on static ICP measurements rather than longitudinal patterns.
What Is New:
• This study identifies five distinct ICP trajectory subtypes using group-based trajectory modeling. • Three dynamic ICP patterns are significantly associated with poor 6-month neurologic outcomes.
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