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Published on: March 26, 2019
Hemorrhagic complications of intracranial pressure monitors in children
Martin Blaha1, Daniel Lazar, Richard H Winn
1Department of Neurological Surgery, University of Washington School of Medicine and Children's Hospital and Medical Center, Seattle 98105, USA.
Insights
Hemorrhage after intracranial pressure (ICP) monitoring in children is uncommon, with most cases being clinically silent. A new grading system was proposed, highlighting the importance of neuroradiological studies for accurate complication assessment.
Area of Science:
- Pediatric Neurosurgery
- Neurocritical Care
- Medical Device Complications
Background:
- Intracranial pressure (ICP) monitoring is crucial for managing pediatric head injuries and elevated ICP.
- Assessing complications like hemorrhage post-ICP monitor insertion is vital for patient safety.
Purpose of the Study:
- To determine the incidence of hemorrhage following ICP monitor insertion in pediatric patients.
- To classify these hemorrhagic complications using a novel, clinically relevant grading system.
Main Methods:
- Retrospective review of hospital charts for 431 children (ages 0-16) at a level I trauma center over 2 years.
- Identification of 112 patients (134 insertions) who underwent intraparenchymal ICP monitoring.
- Analysis of postoperative neuroradiological studies to detect and grade hemorrhages.
Main Results:
- A complication rate of approximately 10% was observed.
- 119 insertions (grade 0) had no hemorrhage.
- 10 insertions (grade 1) showed minor hemorrhage (punctate or subarachnoid); 3 insertions (grade 2) had intracerebral hemorrhage without new deficits or need for evacuation.
- No grade 3 hemorrhages requiring intervention or causing clinical change were found.
Conclusions:
- A new grading system for post-ICP monitor insertion hemorrhage is proposed.
- While most hemorrhages in pediatric patients were clinically silent and required no intervention, they may lead to false ICP readings.
- The long-term effects of these hemorrhages remain unknown, and underreporting in patient charts (23% documented) may skew reported complication rates.
Abstract:
Intracranial pressure (ICP) monitoring plays a valuable role in the management of head injuries and other causes of raised ICP in the pediatric population. The purpose of this study was to investigate the incidence of hemorrhage after ICP monitor insertion, and to classify these complications in a clinically relevant manner. Hospital charts of 431 children (ages 0-16 years) admitted to a level I trauma center over a 2-year period were reviewed and 112 patients (134 insertions) who underwent intraparenchymal ICP monitoring were identified. The authors reviewed postoperative neuroradiological studies. One hundred and nineteen procedures were carried out without any hemorrhage (grade 0). After 10 insertions, a small punctate hemorrhage or localized subarachnoid hemorrhage occurred (grade 1). Three patients sustained an intracerebral hemorrhage that did not require evacuation or manifest as a new neurological deficit (grade 2). There were no hemorrhagic complications that necessitated evacuation or resulted in a noticeable change in the patient's clinical condition (grade 3). We propose a new grading system for hemorrhage after ICP monitor insertion. We found a complication rate close to 10% in our pediatric patients. Fortunately, these hemorrhages were clinically silent and no neurosurgical intervention was necessary. However, grade 1 and grade 2 hemorrhages may manifest with a false reading of high ICP, and the long-term consequences of these complications are not known. Of note, only 23% of these complications were reflected in the patients charts, which may explain the low complication rates reported in other studies that did not analyze postoperative neuroradiological studies.
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