Investigating shunt function using continuous intracranial pressure monitoring in adults: single center experience

2010 ◽  
Vol 113 (6) ◽  
pp. 1326-1330 ◽  
Author(s):  
Ahmed K. Toma ◽  
Andrew Tarnaris ◽  
Neil D. Kitchen ◽  
Laurence D. Watkins

Object Managing symptomatic ventriculoperitoneal shunts with no clear evidence of shunt malfunction either clinically or radiologically can be a difficult task. The aim of this study was to assess intracranial pressure (ICP) monitoring as a method of investigating shunt function. Methods The authors performed a retrospective analysis of 38 continuous ICP monitoring procedures done in patients with ventriculoperitoneal shunts and suspected shunt malfunction. Results Thirty-eight procedures were performed in 31 patients between January 2005 and October 2008. Sixteen recordings were normal, 6 revealed overdrainage or low pressure, 11 indicated underdrainage or high pressure, and 5 showed variable shunt function. Based on the findings after 20 procedures (53%), patients were treated conservatively: 4 by readjusting the valve setting and 16 by referral to the headache neurologist for medical treatment. Forty-five percent of the conservatively treated patients improved. Surgical exploration was undertaken following 18 procedures (47%); 72% of the surgically treated patients improved. Conclusions Continuous ICP monitoring using an intraparenchymal probe is a safe and effective method of investigating adult hydrocephalus.

2007 ◽  
Vol 22 (4) ◽  
pp. 1-6 ◽  
Author(s):  
Romergryko G. Geocadin ◽  
Panayiotis N. Varelas ◽  
Daniele Rigamonti ◽  
Michael A. Williams

Object The authors attempted to determine whether continuous intracrnial pressure monitoring via the shunt resevoir identifies ventriculoperitoneal (VP) shunt malfunctions that are not identified by radionuclide shunt patency study or shunt tap in adults with hydrocephalus. Methods During a 2-year period, 26 adults underwent 32 in-hospital continuous intracranial pressure (ICP) monitoring evaluations via needle access of a shunt reservoir. Monitoring was performed for 26.8 ± 13.8 hours (mean ± standard deviation). No ICP waveform abnormality was detected in 31% of the evaluations (10 of 32). In contrast, abnormalities were detected in 69% (22 of 32 evaluations), including B waves (nine of 22 evaluations), siphoning (nine of 22 evaluations), and variable ICP (two of 22 evaluations). In 20 (91%) of these 22 evaluations, the ICP abnormality was detected only after continuous ICP monitoring; in the other two evaluations, ICP became abnormal immediately on accessing the shunt reservoir. On the basis of the ICP monitoring results, shunt revision was performed in 66% (21 of 32 evaluations) and medical therapy was administered in 34% (11 of 32 evaluations). Shunt revision led to symptom improvement in 82% (18 of 22 patients) and no change in 18% (four of 22 patients); medical therapy led to improvement in 18% (two of 11 patients), worsening in 18% (two of 11 patients), and no change in 64% (seven of 11 patients; p < 0.05). Conclusions Continuous ICP monitoring via the shunt reservoir provides a more accurate assessment of shunt malfunction than transient ICP monitoring with a shunt tap or a radionuclide shunt patency study. It is a safe method for evaluating patients with suspected VP shunt malfunction, provides in vivo assessment of the effect of the shunt system on a patient's ICP, and can lead to more effective shunt revision.


1993 ◽  
Vol 4 (1) ◽  
pp. 148-160
Author(s):  
Therese S. Richmond

Intracranial pressure monitoring (ICP) is a technology that assists critical care nurses in the assessment, planning, intervention, and evaluation of care. The physiologic basis of intracranial hypertension (ICH) and ICP monitoring are reviewed. Types of monitors arc described. Advantages, disadvantages, and complications of fluid-filled versus fiberoptic systems are explored. Priorities in nursing care of the patient with an ICP monitor are examined


2018 ◽  
Vol 15 (2) ◽  
pp. 23-29
Author(s):  
Nilam Khadka ◽  
Rajan Kumar Sharma ◽  
Rajiv Jha ◽  
Prakash Bista

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


Neurosurgery ◽  
2018 ◽  
Vol 85 (2) ◽  
pp. 231-239 ◽  
Author(s):  
Abhijit Lele ◽  
Nithya Kannan ◽  
Monica S Vavilala ◽  
Deepak Sharma ◽  
Mahmud Mossa-Basha ◽  
...  

AbstractBACKGROUNDIndia has a high traumatic brain injury (TBI) burden and intracranial pressure monitoring (ICP) remains controversial but some patients may benefit.OBJECTIVETo examine the association between ICP monitor placement and outcomes, and identify Indian patients with severe TBI who benefit from ICP monitoringMETHODSWe conducted a secondary analysis of a prospective cohort study at a level 1 Indian trauma center. Patients over 18 yr with severe TBI (admission Glasgow coma scale score < 8) who received tracheal intubation for at-least 48 h were examined. Propensity-based analysis using inverse probability weighting approach was used to examine ICP monitor placement within 72 h of admission and outcomes. Outcomes were in-hospital mortality and Glasgow Outcome Scale (GOS) score at discharge, 3, 6, and 12 mo. Death, vegetative, or major impairment defined unfavorable outcome.RESULTSThe 200 patients averaged 36 [18 to 85] yr of age and average injury severity score of 31.4 [2 to 73]. ICP monitors were placed in 126 (63%) patients. Patients with ICP monitor placement experienced lower in-hospital mortality (adjusted relative risk [aRR]; 0.50 [0.29, 0.87]) than patients without ICP monitoring. However, there was no benefit at 3, 6, and 12 mo. With ICP monitor placement, absence of cerebral edema (aRR 0.54, 95% confidence interval 0.35-0.84), and absence of intraventricular hemorrhage (aRR 0.52, 95% confidence interval 0.33-0.82) were associated with reduced unfavorable outcomes.CONCLUSIONICP monitor placement without cerebrospinal fluid drainage within 72 h of admission was associated with reduced in-patient mortality. Patients with severe TBI but without cerebral edema and without intraventricular hemorrhage may benefit from ICP monitoring.


QJM ◽  
2020 ◽  
Vol 113 (Supplement_1) ◽  
Author(s):  
A K Ali ◽  
A E Abdelbar ◽  
A R Farghaly ◽  
M K A Uthman

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.


1995 ◽  
Vol 53 (3a) ◽  
pp. 390-394 ◽  
Author(s):  
Antonio L. E Falcão ◽  
Venâncio P. Dantas Filho ◽  
Luiz A. C. Sardinha ◽  
Elizabeth M. A. B. Quagliato ◽  
Desanka Dragosavac ◽  
...  

Intracranial pressure (ICP) monitoring was carried out in 100 patients with severe acute brain trauma, primarily by means of a subarachnoid catheter. Statistical associations were evaluated between maximum ICP values and: 1) Glasgow Coma Scale (GCS) scores; 2) findings on computed tomography (CT) scans of the head; and 3) mortality. A significant association was found between low GCS scores (3 to 5) and high ICP levels, as well as between focal lesions on CT scans and elevated ICP. Mortality was significantly higher in patients with ICP > 40 mm Hg than in those with ICP < 20 mm Hg.


Neurosurgery ◽  
2018 ◽  
Vol 85 (1) ◽  
pp. E75-E82 ◽  
Author(s):  
Joseph Donnelly ◽  
Marek Czosnyka ◽  
Hadie Adams ◽  
Danilo Cardim ◽  
Angelos G Kolias ◽  
...  

Author(s):  
Ramesh Sahjpaul ◽  
Murray Girotti

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.


Author(s):  
Thomas Peponis ◽  
David R. King

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.


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