Acute and Critical Care

Original Articles

Trauma
Bedside ultrasonographic evaluation of optic nerve sheath diameter for monitoring of intracranial pressure in traumatic brain injury patients: a cross sectional study in level II trauma care center in India: Sujit J. Kshirsagar, Anandkumar H. Pande, Sanyogita V. Naik, Alok Yadav, Ruchira M. Sakhala, Sangharsh M. Salve, Aysath Nuhaimah, Priyanka Desai; Acute Crit Care. 2024;39(1):155-161. Published online February 23, 2024; DOI: https://doi.org/10.4266/acc.2023.01172

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Abstract PDF: Background
Optic nerve sheath diameter (ONSD) is an emerging non-invasive, easily accessible, and possibly useful measurement for evaluating changes in intracranial pressure (ICP). The utilization of bedside ultrasonography (USG) to measure ONSD has garnered increased attention due to its portability, real-time capability, and lack of ionizing radiation. The primary aim of the study was to assess whether bedside USG-guided ONSD measurement can reliably predict increased ICP in traumatic brain injury (TBI) patients. Methods: A total of 95 patients admitted to the trauma intensive care unit was included in this cross sectional study. Patient brain computed tomography (CT) scans and Glasgow Coma Scale (GCS) scores were assessed at the time of admission. Bedside USG-guided binocular ONSD was measured and the mean ONSD was noted. Microsoft Excel was used for statistical analysis. Results: Patients with low GCS had higher mean ONSD values (6.4±1.0 mm). A highly significant association was found among the GCS, CT results, and ONSD measurements (P<0.001). Compared to CT scans, the bedside USG ONSD had 86.42% sensitivity and 64.29% specificity for detecting elevated ICP. The positive predictive value of ONSD to identify elevated ICP was 93.33%, and its negative predictive value was 45.00%. ONSD measurement accuracy was 83.16%. Conclusions: Increased ICP can be accurately predicted by bedside USG measurement of ONSD and can be a valuable adjunctive tool in the management of TBI patients.

Neurosurgery
Comparison of intracranial pressure prediction in hydrocephalus patients among linear, non-linear, and machine learning regression models in Thailand: Avika Trakulpanitkit, Thara Tunthanathip; Acute Crit Care. 2023;38(3):362-370. Published online August 18, 2023; DOI: https://doi.org/10.4266/acc.2023.00094

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Abstract PDF: Background
Hydrocephalus (HCP) is one of the most significant concerns in neurosurgical patients because it can cause increased intracranial pressure (ICP), resulting in mortality and morbidity. To date, machine learning (ML) has been helpful in predicting continuous outcomes. The primary objective of the present study was to identify the factors correlated with ICP, while the secondary objective was to compare the predictive performances among linear, non-linear, and ML regression models for ICP prediction.
Methods
A total of 412 patients with various types of HCP who had undergone ventriculostomy was retrospectively included in the present study, and intraoperative ICP was recorded following ventricular catheter insertion. Several clinical factors and imaging parameters were analyzed for the relationship with ICP by linear correlation. The predictive performance of ICP was compared among linear, non-linear, and ML regression models.
Results
Optic nerve sheath diameter (ONSD) had a moderately positive correlation with ICP (r=0.530, P<0.001), while several ventricular indexes were not statistically significant in correlation with ICP. For prediction of ICP, random forest (RF) and extreme gradient boosting (XGBoost) algorithms had low mean absolute error and root mean square error values and high R2 values compared to linear and non-linear regression when the predictive model included ONSD and ventricular indexes.
Conclusions
The XGBoost and RF algorithms are advantageous for predicting preoperative ICP and establishing prognoses for HCP patients. Furthermore, ML-based prediction could be used as a non-invasive method.

Review Article

Neurosurgery
Target temperature management in traumatic brain injury with a focus on adverse events, recognition, and prevention: Kwang Wook Jo; Acute Crit Care. 2022;37(4):483-490. Published online November 10, 2022; DOI: https://doi.org/10.4266/acc.2022.01291

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Abstract PDF

Traumatic brain injury (TBI) is a critical cause of disability and death worldwide. Many studies have been conducted aimed at achieving favorable neurologic outcomes by reducing secondary brain injury in TBI patients. However, ground-breaking outcomes are still insufficient so far. Because mild-to-moderate hypothermia (32°C–35°C) has been confirmed to help neurological recovery for recovered patients after circulatory arrest, it has been recognized as a major neuroprotective treatment plan for TBI patients. Thereafter, many clinical studies about the effect of therapeutic hypothermia (TH) on severe TBI have been conducted. However, efficacy and safety have not been demonstrated in many large-scale randomized controlled studies. Rather, some studies have demonstrated an increase in mortality rate due to complications such as pneumonia, so it is not highly recommended for severe TBI patients. Recently, some studies have shown results suggesting TH may help reperfusion/ischemic injury prevention after surgery in the case of mass lesions, such as acute subdural hematoma, and it has also been shown to be effective in intracranial pressure control. In conclusion, TH is still at the center of neuroprotective therapeutic studies regarding TBI. If proper measures can be taken to mitigate the many adverse events that may occur during the course of treatment, more positive efficacy can be confirmed. In this review, we look into adverse events that may occur during the process of the induction, maintenance, and rewarming of targeted temperature management and consider ways to prevent and address them.

Citations

Citations to this article as recorded by

Trends and hotspots in research of traumatic brain injury from 2000 to 2022: A bibliometric study
Yan-rui Long, Kai Zhao, Fu-chi Zhang, Yu Li, Jun-wen Wang, Hong-quan Niu, Jin Lei
Neurochemistry International.2024; 172: 105646. CrossRef
Severe traumatic brain injury in adults: a review of critical care management
Siobhan McLernon
British Journal of Neuroscience Nursing.2023; 19(6): 206. CrossRef

Original Article

Neurosurgery
The RAP Index during Intracranial Pressure Monitoring as a Clinical Guiding for Surgically Treated Aneurysmal Subarachnoid Hemorrhage: Consecutive Series of Single Surgeon: Sung-Chul Jin, Byung Sam Choi, Jung-Soo Kim; Acute Crit Care. 2019;34(1):71-78. Published online February 28, 2019; DOI: https://doi.org/10.4266/acc.2019.00437

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3 Web of Science
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Abstract PDF

Background
It is well known that assessing the RAP index along with intracranial pressure (ICP) monitoring in traumatic brain injury patients is helpful. We will discuss the usefulness of this assessment tool as a clinical guide for surgically treated poor grade aneurysmal subarachnoid hemorrhage (SAH).
Methods
This retrospective study included 35 patients with aneurysmal SAH who presented with World Federation of Neurosurgical Societies (WFNS) grade V SAH and received surgical treatment from January 2013 to December 2018. Emergency surgical clipping, hematoma removal, extraventricular drainage, and if needed, wide decompressive craniectomy were combined as the proper surgical treatments. Outcomes were assessed based on in-hospital survival and the Glasgow outcome scale score at 14-day follow-up. We compared the mortality rate of two groups of seven patients: ICP monitoring only (n=5) and ICP monitoring combined with the RAP index (n=2).
Results
The in-hospital 14-day mortality rate by brain lesion was 48.5% (n=17). Seven patients had real-time ICP monitoring. Before 2018, three of five patients with poor WFNS grade who received real-time ICP monitoring only died. There were no deaths in the group of two patients receiving real-time ICP monitoring and the RAP index.
Conclusions
Our data indicate that combining the RAP index and ICP monitoring can be used as markers for critical intracranial physiological parameters in poor grade WFNS patients.

Citations

Citations to this article as recorded by

Multimodal Neurologic Monitoring in Children With Acute Brain Injury
Jennifer C. Laws, Lori C. Jordan, Lindsay M. Pagano, John C. Wellons, Michael S. Wolf
Pediatric Neurology.2022; 129: 62. CrossRef
Intracranial pressure: current perspectives on physiology and monitoring
Gregory W. J. Hawryluk, Giuseppe Citerio, Peter Hutchinson, Angelos Kolias, Geert Meyfroidt, Chiara Robba, Nino Stocchetti, Randall Chesnut
Intensive Care Medicine.2022; 48(10): 1471. CrossRef
The application value of CT radiomics features in predicting pressure amplitude correlation index in patients with severe traumatic brain injury
Jiaqi Liu, Yingchi Shan, Guoyi Gao
Frontiers in Neurology.2022;[Epub] CrossRef

Case Reports

Propofol-Related Infusion Syndrome in an Adult Patient Using Propofol Coma Therapy to Control Intracranial Pressure: Sang Youn Park, Eu Gene Kim, Hee Pyoung Park; Korean J Crit Care Med. 2013;28(3):234-238.; DOI: https://doi.org/10.4266/kjccm.2013.28.3.234

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Abstract PDF

Propofol-related infusion syndrome (PRIS) is a rare but fatal complication. Unexplained metabolic acidosis, rhabdomyolysis, hyperkalemia, myocardial dysfunction, cardiovascular collapse and acute kidney injury are the main characteristics of PRIS. Herein, we report a case of PRIS in a neurosurgical adult patient, who had received high-dose propofol continuous infusion in order to control intracranial pressure in an intensive care unit. She manifested severe metabolic acidosis, rhabdomyolysis, acute kidney injury and myocardial dysfunction. As soon as PRIS was diagnosed, propofol infusion was stopped. Conservative treatments, such as vasopressors and inotropics, continuous renal replacement therapy and extracorporeal membrane oxygenation were used to treat PRIS. However, she finally expired. This case report suggests that a great caution to PRIS is needed in a situation with high-dose propofol continuous infusion.

Citations

Citations to this article as recorded by

Successful treatment of propofol-related infusion syndrome in critically ill patient receiving low-dose propofol infusion: a case report
Nahyeon Park, Tae Sun Ha
Acute and Critical Care.2023; 38(1): 144. CrossRef

Reversal of Focal Neurologic Deficit due to Preoperative Intracranial Pressure Reduction in a Patient with Early Rebleeding of Cerebral Aneurysm: A Case Report: Hyo Seok Na, Sang Hyun Park, Young Tae Jeon, Song Hwan Do, Hwan Hee Kim, Sang Chul Lee, Hee Pyoung Park; Korean J Crit Care Med. 2008;23(1):40-43.; DOI: https://doi.org/10.4266/kjccm.2008.23.1.40

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Abstract PDF: In the first hours after initial hemorrhage, up to 15% of patients with subarachnoid hemorrhage (SAH) due to aneurysmal rupture may have a sudden episode of clinical deterioration resulting from rebleeding. In patients suffering from an aneurismal rebleeding, the prognosis becomes much poor. Early detection of rebleeding and preoperatively appropriate medical treatment for increased intracranial pressure (IICP) might be crucial to decrease the overall mortality and morbidity rate in a patient with aneurismal rebleeding. We report a case of a successful reversal of focal neurological deficit showed in a patient with abrupt rebleeding of ruptured aneurysm whose intracranial pressure was preoperatively reduced with hyperventilation, and thiopental and mannitol administration under general anesthesia in angiography suite, although the patient ended up in death due to postoperative IICP.

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