The Relationship between Serum Sodium, Serum Osmolality, and Intracranial Pressure in Patients with Traumatic Brain Injury Treated with Hyperosmolar Therapy

2021 ◽  
pp. 000313482110586
Author(s):  
Paige Farley ◽  
Daniel Salisbury ◽  
John R Murfee ◽  
Colin T Buckley ◽  
Catherine N Taylor ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Intracranial Pressure ◽  
Serum Sodium ◽  
Serum Osmolality ◽  
Clinical Markers ◽  
Icp Monitoring ◽  
Hyperosmolar Therapy ◽  
Time Points ◽  
The Relationship

Background Treatment of elevated intracranial pressure (ICP) in traumatic brain injury (TBI) is controversial. Hyperosmolar therapy is used to prevent cerebral edema in these patients. Many intensivists measure direct correlates of these agents—serum sodium and osmolality. We seek to provide context on the utility of using these measures to estimate ICP in TBI patients. Materials and Methods Patients admitted with TBI who required ICP monitoring from 2008 to 2012 were included. Intracranial pressure, serum sodium, and serum osmolality were assessed prior to hyperosmotic therapy then at 6, 12, 18, 24, 48, and 72 hours after admission. A linear regression was performed on sodium, osmolality, and ICP at baseline and serum sodium and osmolality that corresponded with ICP for 6-72-hour time points. Results 136 patients were identified. Patients with initial measures were included in the baseline analysis (n = 29). Patients who underwent a craniectomy were excluded from the 6-72-hour analysis (n = 53). Initial ICP and serum sodium were not significantly correlated (R2 .00367, P = .696). Initial ICP and serum osmolality were not significantly correlated (R2 .00734, P = .665). Intracranial pressure and serum sodium 6-72 hours after presentation were poorly correlated (R2 .104, P < .0001), as were ICP and serum osmolality at 6-72 hours after presentation (R2 .116, P < .0001). Discussion Our results indicate initial ICP is not correlated with serum sodium or osmolality suggesting these are not useful initial clinical markers for ICP estimation. The association between ICP and serum sodium and osmolality after hyperosmolar therapy was poor, thus may not be useful as surrogates for direct ICP measurements.

scholarly journals Correction to: Serum sodium and intracranial pressure changes after desmopressin therapy in severe traumatic brain injury patients: a multi-centre cohort study

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
A. Harrois ◽  
◽  
J. R. Anstey ◽  
F. S. Taccone ◽  
A. A. Udy ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Cohort Study ◽  
Brain Injury ◽  
Intracranial Pressure ◽  
Severe Traumatic Brain Injury ◽  
Serum Sodium ◽  
Collaborative Group ◽  
Full List ◽  
Pressure Changes

Following publication of the original article [1], we were notified that the collaborators’ names part of the “The TBI Collaborative” group has not been indexed in Pubmed. Below the collaborators names full list:

scholarly journals Intracranial Pressure during External Ventricular Drainage Weaning Is an Outcome Predictor of Traumatic Brain Injury

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Jia-cheng Gu ◽  
Hong Wu ◽  
Xing-zhao Chen ◽  
Jun-feng Feng ◽  
Guo-yi Gao ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Intracranial Pressure ◽  
External Ventricular Drainage ◽  
Unfavorable Outcome ◽  
Ventricular Drainage ◽  
Outcome Group ◽  
Significant Difference ◽  
The Mean ◽  
The Relationship

External ventricular drainage (EVD) is widely used in patients with a traumatic brain injury (TBI). However, the EVD weaning trial protocol varies and insufficient studies focus on the intracranial pressure (ICP) during the weaning trial. We aimed to establish the relationship between ICP during an EVD weaning trial and the outcomes of TBI. We enrolled 37 patients with a TBI with an EVD from July 2018 to September 2019. Among them, 26 were allocated to the favorable outcome group and 11 to the unfavorable outcome group (death, post-traumatic hydrocephalus, persistent vegetative state, and severe disability). Groups were well matched for sex, pupil reactivity, admission Glasgow Coma Scale score, Marshall computed tomography score, modified Fisher score, intraventricular hemorrhage, EVD days, cerebrospinal fluid output before the weaning trial, and the complications. Before and during the weaning trial, we recorded the ICP at 1-hour intervals to calculate the mean ICP, delta ICP, and ICP burden, which was defined as the area under the ICP curve. There were significant between-group differences in the age, surgery types, and intensive care unit days (p=0.045, p=0.028, and p=0.004, respectively). During the weaning trial, 28 (75.7%) patients had an increased ICP. Although there was no significant difference in the mean ICP before and during the weaning trial, the delta ICP was higher in the unfavorable outcome group (p=0.001). Moreover, patients who experienced death and hydrocephalus had a higher ICP burden, which was above 20 mmHg (p=0.016). Receiver operating characteristic analyses demonstrated the predictive ability of these variables (area under the curve AUC=0.818 [p=0.002] for delta ICP and AUC=0.758 [p=0.038] for ICP burden>20 mmHg). ICP elevation is common during EVD weaning trials in patients with TBI. ICP-related parameters, including delta ICP and ICP burden, are significant outcome predictors. There is a need for larger prospective studies to further explore the relationship between ICP during EVD weaning trials and TBI outcomes.

Analysis of the Relationship Between Intracranial Pressure Pulse Waveform and Outcome in Traumatic Brain Injury

2021 ◽  
pp. 52-57
Author(s):  
Agnieszka Kazimierska ◽  
Cyprian Mataczyński ◽  
Agnieszka Uryga ◽  
Małgorzata Burzyńska ◽  
Andrzej Rusiecki ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Intracranial Pressure ◽  
Pressure Pulse ◽  
Pulse Waveform ◽  
The Relationship

scholarly journals Study of Intracranial Pressure Monitoring In Traumatic Brain Injury

2018 ◽  
Vol 15 (2) ◽  
pp. 23-29
Author(s):  
Nilam Khadka ◽  
Rajan Kumar Sharma ◽  
Rajiv Jha ◽  
Prakash Bista
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Intracranial Pressure ◽  
Fiber Optic ◽  
Standard Of Care ◽  
Intracranial Pressure Monitoring ◽  
Icp Monitoring ◽  
Pressure Monitoring ◽  
Serious Adverse Events ◽  
Monitoring Modality

Intracranial pressure monitoring is considered the standard of care for severe traumatic brain injury and is used frequently. However, the efficacy of treatment based on monitoring in improving the outcome has not been rigorously assessed. We conducted a trial in which we included 26 patients of all types of traumatic brain injury (TBI) and they were monitored for intracranial pressure by Conventional fluid filled system with a manometer (Group 1) and compared with the Fiber optic transducer-tipped intracranial pressure monitoring system (Group 2).The main aim of this study was to examine the relationship between Intracranial Pressure (ICP) monitoring and in-hospital mortality. The median length of stay in the ICU was similar in the two groups (12 days in the conventional pressure-monitoring group and 9 days in the new fiber optic group; P=0.25), the number of days of brain-specific treatments (e.g., administration of hyperosmolar fluids and the use of hyperventilation) in the ICU was similar in both groups. The distribution of serious adverse events was similar in the two groups. We concluded that ICP monitoring (as is any monitoring modality) is a useful guide for management. The outcomes are decided by the differences in management protocols that the knowledge of the said parameter brings about. ICP monitoring is recommended for the better management of traumatic brain injury and fiber optic ICP monitoring seems to be beneficial than using the conventional methods of ICP monitoring with manometer.Nepal Journal of Neuroscience, Volume 15, Number 2, 2018, page: 23-29

scholarly journals Increased mortality in patients with severe traumatic brain injury treated without intracranial pressure monitoring

2012 ◽  
Vol 117 (4) ◽  
pp. 729-734 ◽  
Author(s):  
Arash Farahvar ◽  
Linda M. Gerber ◽  
Ya-Lin Chiu ◽  
Nancy Carney ◽  
Roger Härtl ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Intracranial Pressure ◽  
Intracranial Hypertension ◽  
Severe Traumatic Brain Injury ◽  
Lower Mortality ◽  
Icp Monitoring ◽  
Improvement Program ◽  
Severe Tbi ◽  
Gcs Score

Object Evidence-based guidelines recommend intracranial pressure (ICP) monitoring for patients with severe traumatic brain injury (TBI), but there is limited evidence that monitoring and treating intracranial hypertension reduces mortality. This study uses a large, prospectively collected database to examine the effect on 2-week mortality of ICP reduction therapies administered to patients with severe TBI treated either with or without an ICP monitor. Methods From a population of 2134 patients with severe TBI (Glasgow Coma Scale [GCS] Score <9), 1446 patients were treated with ICP-lowering therapies. Of those, 1202 had an ICP monitor inserted and 244 were treated without monitoring. Patients were admitted to one of 20 Level I and two Level II trauma centers, part of a New York State quality improvement program administered by the Brain Trauma Foundation between 2000 and 2009. This database also contains information on known independent early prognostic indicators of mortality, including age, admission GCS score, pupillary status, CT scanning findings, and hypotension. Results Age, initial GCS score, hypotension, and CT scan findings were associated with 2-week mortality. In addition, patients of all ages treated with an ICP monitor in place had lower mortality at 2 weeks (p = 0.02) than those treated without an ICP monitor, after adjusting for parameters that independently affect mortality. Conclusions In patients with severe TBI treated for intracranial hypertension, the use of an ICP monitor is associated with significantly lower mortality when compared with patients treated without an ICP monitor. Based on these findings, the authors conclude that ICP-directed therapy in patients with severe TBI should be guided by ICP monitoring.

scholarly journals Impact of Intracranial Pressure Monitoring on Mortality in Patients with Severe Traumatic Brain Injury

QJM ◽  
2020 ◽  
Vol 113 (Supplement_1) ◽  
Author(s):  
A K Ali ◽  
A E Abdelbar ◽  
A R Farghaly ◽  
M K A Uthman
Keyword(s):  
Systematic Review ◽  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Intracranial Pressure ◽  
English Literature ◽  
Intracranial Pressure Monitoring ◽  
Occurrence Rate ◽  
Icp Monitoring ◽  
Pressure Monitoring ◽  
Mortality And Morbidity

Abstract Background Traumatic brain injury (TBI) is among the most important public health problems associated with high healthcare and social burden and significant mortality and morbidity. Overall low income countries have the highest TBI associated mortality and morbidity. Aim of the Work Some studies have demonstrated that intracranial pressure (ICP) monitoring reduces the mortality of traumatic brain injury (TBI). But other studies have shown that ICP monitoring is associated with increased mortality. Patients and Methods Systematic review of Published English literature from 2000 to 2017. Using appropriate combinations of MeSH terms and key words, including intracranial pressure, intracranial hypertension, ICP monitor, intracranial pressure monitoring, TBI traumatic brain injury, and craniocerebral trauma. Brain Trauma Foundation guidelines, mortality. We performed this relatively wide search to include the maximum number of relevant patients. Results In total, 2552 studies were identified and screened for retrieval using the strategy described above. After careening the title and abstract, 1968 studies were excluded and 554 were retrieved and subjected to detailed evaluations. Based on the inclusion and exclusion criteria, 527 of those studies were excluded, and thus 27 studies were included in the systematic review. All included studies were published, peer-previewed papers. Conclusion ICP monitoring may play a role in decreasing the rate of electrolyte disturbances, rate of renal failure, and increasing favorable functional outcome. However, there was no significant effect for reducing the risk of hospital mortality, lowering occurrence rate of pulmonary infection, use of mechanical ventilation and duration of hospital stays. RCTs with larger sample size are necessary to further support the current results.

Computed Tomographic Brain Density Measurement as a Predictor of Elevated Intracranial Pressure in Blunt Head Trauma

2007 ◽  
Vol 73 (10) ◽  
pp. 1023-1026 ◽  
Author(s):  
Kenji Inaba ◽  
Pedro G.R. Teixeira ◽  
Jean-Stephane David ◽  
Carlos Brown ◽  
Ali Salim ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Intracranial Pressure ◽  
Injury Severity ◽  
Density Measurement ◽  
Elevated Intracranial Pressure ◽  
Icp Monitoring ◽  
Brain Ct ◽  
Blunt Head Trauma ◽  
Brain Density

There are no independent computed tomography (CT) findings predictive of elevated intracranial pressure (ICP). The purpose of this study was to evaluate brain density measurement on CT as a predictor of elevated ICP or decreased cerebral perfusion pressure (CPP). A prospectively collected database of patients with acute traumatic brain injury was used to identify patients who had a brain CT followed within 2 hours by ICP measurement. Blinded reviewers measured mean density in Hounsfield Units (HU) within a 100-mm2 elliptical region at four standardized positions. Brain density measurement was compared for patients with an ICP of 20 or greater versus less than 20 mm Hg and CPP of 70 or greater versus less than 70 mm Hg. During a 2-year period, 47 patients had ICP monitoring after brain CT. Average age was 40 ± 18 years old; 93.6 per cent were male; mean Injury Severity Score was 25 ± 10; and Glasgow Coma Scale was 6 ± 4. There was no difference in brain density measurement for observer 1, ICP less than 20 (26.3 HU) versus ICP 20 or greater (27.4 HU, P = 0.545) or for CPP less than 70 (27.1 HU) versus CPP 70 or greater (26.2, P = 0.624). Similarly, there was no difference for observer 2, ICP less than 20 (26.8 HU) versus ICP 20 or greater (27.4, P = 0.753) and CPP less than 70 (27.6 HU) versus CPP 70 or greater (26.2, P = 0.436). CT-measured brain density does not correlate with elevated ICP or depressed CPP and cannot predict patients with traumatic brain injury who would benefit from invasive ICP monitoring.

scholarly journals Intracranial Pressure Monitoring in Severe Traumatic Brain Injury – Results of a Canadian Survey

2000 ◽  
Vol 27 (2) ◽  
pp. 143-147 ◽  
Author(s):  
Ramesh Sahjpaul ◽  
Murray Girotti
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Intracranial Pressure ◽  
Prospective Trial ◽  
Icp Monitoring ◽  
Pressure Monitoring ◽  
Level Of Confidence ◽  
Routine Monitoring ◽  
Severe Tbi ◽  
High Level

ABSTRACT:Objective:The purpose of this study was to obtain information from Canadian neurosurgeons regarding their opinions on, and utilization of, intracranial pressure (ICP) monitoring for severe traumatic brain injury (TBI).Methods:A brief survey was sent to practicing Canadian neurosurgeons questioning them about their utilization of, and confidence in, intracranial pressure monitoring in the management of patients with severe TBI.Results:One hundred and ninety-six surveys were mailed. There were 103 responses for a response rate of 52.6%. The vast majority of responding neurosurgeons (98.1%) utilized ICP monitoring in the management of patients with severe TBI, with most (63.4%) using it in more than 75% of their patients, 14.9% using it in 50-75% of patients, 14.9% in 25-50% of patients, and 6.9% using it in less than 25% of patients. The level of confidence that routine monitoring improves outcome from severe TBI ranged from 23.3% having a low level of confidence, 56.3% having an intermediate level of confidence, to 20.4% having a high level of confidence. Most respondents (78.6%) felt that some form of prospective trial evaluating the role of ICP monitoring in improving outcome from severe TBI was warranted; 17.4% felt such a trial was not warranted and 3.9% were uncertain.Conclusions:While ICP monitoring has gained almost universal acceptance among responding Canadian neurosurgeons, their level of confidence that routine monitoring improves outcome from severe TBI was quite variable, with only 20.4% of respondents having a high level of confidence. Over 75% of respondents felt that some form of prospective trial evaluating the utility of ICP monitoring is warranted. This information is being used in consideration of a prospective trial addressing this issue.

Intracranial Pressure Monitoring in Severe Traumatic Brain Injury

2018 ◽  
pp. 39-44
Author(s):  
Thomas Peponis ◽  
David R. King
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Intracranial Pressure ◽  
Severe Traumatic Brain Injury ◽  
Controlled Trial ◽  
Survival Rates ◽  
Intracranial Pressure Monitoring ◽  
Icp Monitoring ◽  
Pressure Monitoring ◽  
Neuropsychological Status

The study “A Trial of Intracranial-Pressure Monitoring in Traumatic Brain Injury” published by Chesnut et al. aimed to resolve the debatable issue of the benefit of intracranial-pressure (ICP) monitoring in patients with severe traumatic brain injury (TBI). The authors designed a randomized controlled trial that was conducted in Latin America. A total of 324 patients admitted with severe TBI were randomly assigned to two groups. The first group (n = 157) was managed with ICP monitoring, using an intraparenchymal monitor. The goal was to keep the ICP below 20 mm Hg. Management of patients comprising the second group (n = 167) was based solely on serial clinical examinations and imaging tests. It was hypothesized that ICP-monitoring would result in increased survival rates, plus improved functional and neuropsychological status at 6-months after the injury. Additionally, the authors hypothesized that complication rates would be decreased and the ICU length of stay shorter.

scholarly journals Intracranial Pressure Monitors in Traumatic Brain Injury: A Systematic Review

2012 ◽  
Vol 39 (5) ◽  
pp. 571-576 ◽  
Author(s):  
Asher A. Mendelson ◽  
Chris Gillis ◽  
William R. Henderson ◽  
Juan J. Ronco ◽  
Vinay Dhingra ◽  
...  
Keyword(s):  
Systematic Review ◽  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Intracranial Pressure ◽  
Observational Studies ◽  
Pooled Analysis ◽  
Point Estimate ◽  
Icp Monitoring ◽  
Study Heterogeneity ◽  
Severe Tbi

We conducted a systematic review to examine the relationship between intracranial pressure monitors (ICP) monitors and mortality in traumatic brain injury (TBI). We systematically searched for articles that met the following criteria: (1) adults patients, (2) TBI, (3) use of an ICP monitor, (4) point estimate for mortality with ICP monitoring (5) adjustment for potential confounders. Six observational studies were identified with 11,371 patients. There was marked between-study heterogeneity that precluded a pooled analysis. Patients with ICP monitors had different clinical characteristics and received more ICP targeted therapy in the ICU. Four studies found no significant relationship between ICP monitoring and survival, while the other two studies demonstrated conflicting results. Significant confounding by indication in observational studies limits the examination of isolated TBI interventions. More research should focus on interventions that affect TBI careplan systems. Further research is needed to identify which subset of severe TBI patients may benefit from ICP monitoring.

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