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Pan Y, Li J, Wu J, Yang C, Wu S, Yang K, Yang X, Chen Q, Fu G, Liu C. Hyperbaric oxygen therapy enhances osteointegration of reimplanted cranial flap by regulating osteogenesis-angiogenesis coupling. J Orthop Res 2024; 42:2197-2209. [PMID: 38751166 DOI: 10.1002/jor.25875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 04/04/2024] [Accepted: 04/28/2024] [Indexed: 10/19/2024]
Abstract
Craniectomy is a lifesaving procedure to alleviate dangerously high intracranial pressure by removing a bone flap from the calvarium. However, the osteointegration of reimplanted bone flap with the existing bone tissue is still a clinical challenge. Hyperbaric oxygen (HBO) therapy has shown efficacy in promoting bone repair and could be a promising treatment for accelerating postoperative recovery. However, the specific cell types that are responsive to HBO treatment are not well understood. In this study, we created a murine model of craniectomy, with reimplantation of the cranial flap after 1 week. The effects of HBO treatment on bone formation and blood vessel formation around reimplanted bone were examined by micro-computed tomography, histological staining, and immunofluorescence staining. Single-cell RNA sequencing (scRNAseq) was utilized to identify key cell subtypes and signaling pathways after HBO treatment. We found that HBO treatment increased bone volume around reimplanted cranial flaps. HBO also increased the volume of Osterix-expressing cells and type H vessels. scRNAseq data showed more mature osteoblasts and endothelial cells, with higher expressions of adhesion and migration-related genes after HBO treatment. Cell-cell interaction analysis revealed a higher expression level of genes between mature osteoblasts and endothelial cells from the angiopoietin 2-integrin α5β1 pathway. Taken together, HBO therapy promotes the healing process of craniectomy by regulating the crosstalk between vascular endothelial cells and osteogenic cells. These findings provide evidence in a preclinical model that HBO therapy enhances osteointegration by regulating angiogenesis-osteogenesis coupling, providing a scientific basis for utilizing HBO therapy for accelerating postoperative recovery after craniectomy.
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Affiliation(s)
- Yonghao Pan
- Department of Biomedical Engineering, College of Engineering, Southern University of Science and Technology, Shenzhen, China
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Southern University of Science and Technology, Shenzhen, China
| | - Jiawei Li
- Department of Biomedical Engineering, College of Engineering, Southern University of Science and Technology, Shenzhen, China
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Southern University of Science and Technology, Shenzhen, China
| | - Jianqun Wu
- School of Medicine, Southern University of Science and Technology, Shenzhen, China
| | - Chengyu Yang
- Department of Biomedical Engineering, College of Engineering, Southern University of Science and Technology, Shenzhen, China
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Southern University of Science and Technology, Shenzhen, China
| | - Siying Wu
- Department of Biomedical Engineering, College of Engineering, Southern University of Science and Technology, Shenzhen, China
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Southern University of Science and Technology, Shenzhen, China
| | - Kunhua Yang
- Department of Biomedical Engineering, College of Engineering, Southern University of Science and Technology, Shenzhen, China
| | - Xue Yang
- Shenzhen Children's Hospital, Shenzhen, Futian District, China
| | - Qian Chen
- Shenzhen Children's Hospital, Shenzhen, Futian District, China
| | - Guibing Fu
- Shenzhen Children's Hospital, Shenzhen, Futian District, China
| | - Chao Liu
- Department of Biomedical Engineering, College of Engineering, Southern University of Science and Technology, Shenzhen, China
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Southern University of Science and Technology, Shenzhen, China
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Fotakopoulos G, Gatos C, Georgakopoulou VE, Lempesis IG, Spandidos DA, Trakas N, Sklapani P, Fountas KN. Role of decompressive craniectomy in the management of acute ischemic stroke (Review). Biomed Rep 2024; 20:33. [PMID: 38273901 PMCID: PMC10809310 DOI: 10.3892/br.2024.1721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Accepted: 12/07/2023] [Indexed: 01/27/2024] Open
Abstract
The application of decompressive craniectomy (DC) is thoroughly documented in the management of brain edema, particularly following traumatic brain injury. However, an increasing amount of concern is developing among the universal medical community as regards the application of DC in the treatment of other causes of brain edema, such as subarachnoid hemorrhage, cerebral hemorrhage, sinus thrombosis and encephalitis. Managing stroke continues to remain challenging, and demands the aggressive and intensive consulting of a number of medical specialties. Middle cerebral artery (MCA) infarcts, which consist of 1-10% of all supratentorial infarcts, are often associated with mass effects, and high mortality and morbidity rates. Over the past three decades, a number of neurosurgical medical centers have reported their experience with the application of DC in the treatment of malignant MCA infarction with varying results. In addition, over the past decade, major efforts have been dedicated to multicenter randomized clinical trials. The present study reviews the pertinent literature to outline the use of DC in the management of malignant MCA infarction. The PubMed database was systematically searched for the following terms: 'Malignant cerebral infarction', 'surgery for stroke', 'DC for cerebral infarction', and all their combinations. Case reports were excluded from the review. The articles were categorized into a number of groups; the majority of these were human clinical studies, with a few animal experimental clinical studies. The surgical technique involved was DC, or hemicraniectomy. Other aspects that were included in the selection of articles were methodological characteristics and the number of patients. The multicenter randomized trials were promising. The mortality rate has unanimously decreased. As for the functional outcome, different scales were employed; the Glasgow Outcome Scale Extended was not sufficient; the Modified Rankin Scale and Bathel index, as well as other scales, were applied. Other aspects considered were demographics, statistics and the very interesting radiological ones. There is no doubt that DC decreases mortality rates, as shown in all clinical trials. Functional outcome appears to be the goal standard in modern-era neurosurgery, and quality of life should be further discussed among the medical community and with patient consent.
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Affiliation(s)
- George Fotakopoulos
- Department of Neurosurgery, General University Hospital of Larissa, 41221 Larissa, Greece
| | - Charalambos Gatos
- Department of Neurosurgery, General University Hospital of Larissa, 41221 Larissa, Greece
| | | | - Ioannis G. Lempesis
- Department of Pathophysiology, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Demetrios A. Spandidos
- Laboratory of Clinical Virology, School of Medicine, University of Crete, 71003 Heraklion, Greece
| | - Nikolaos Trakas
- Department of Biochemistry, Sismanogleio Hospital, 15126 Athens, Greece
| | - Pagona Sklapani
- Department of Biochemistry, Sismanogleio Hospital, 15126 Athens, Greece
| | - Kostas N. Fountas
- Department of Neurosurgery, General University Hospital of Larissa, 41221 Larissa, Greece
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Sorek S, Miller A, Griepp D, Mathew V, Moawad S, Rahme R. Two-Stage Anatomic Myocutaneous Flap Dissection in Cranioplasty: Technical Nuances and Single-Surgeon Experience. Oper Neurosurg (Hagerstown) 2024:01787389-990000000-01025. [PMID: 38260933 DOI: 10.1227/ons.0000000000001063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 11/08/2023] [Indexed: 01/24/2024] Open
Abstract
BACKGROUND AND OBJECTIVES Temporalis muscle management remains one of the most challenging aspects of cranioplasty, which accounts for considerable rates of dissection-related complications. Since 2019, the senior author has developed and consistently used a methodical, two-stage anatomic dissection technique to separate the scalp and temporalis muscle from the underlying brain. This technique is believed to facilitate dissection and minimize the risk of brain injury, while optimizing cosmetic outcomes. METHODS All patients who underwent cranioplasty between January 2019 and February 2023 were identified from a prospectively maintained database. Charts were retrospectively reviewed. Demographic, clinical, and procedural data were extracted and analyzed. RESULTS Twenty-nine patients, 20 men and 9 women with a median age of 37 years (range 17-72), were identified. Indications for craniectomy were traumatic brain injury in 18 (62.1%), hemorrhagic stroke in five (17.2%), ischemic stroke in four (13.8%), and aneurysmal subarachnoid hemorrhage in two (6.9%). Median precranioplasty modified Rankin Scale and Glasgow Coma Scale scores were 5 (range in series: 0-5) and 14 (range in series: 3-15), respectively. The median time to cranioplasty was 131 days (32-1717). Cranioplasty was technically successful in all patients, with a median operative time of 106 minutes (62-182). There were no intraoperative complications. Postoperative complications occurred in three patients (10.3%): hemorrhagic brain contusion (n = 1), meningitis (n = 1), and seizure (n = 1). Of those, one patient (3.4%) died 2 weeks after surgery from suspected pulmonary embolism. After a median follow-up of 4 months (1-44), all 28 survivors have either remained clinically stable or exhibited neurological improvement. Cosmetic results were good or excellent in 27 (96.4%) and fair in one (3.6%). CONCLUSION Two-stage anatomic dissection of the scalp and temporalis muscle during cranioplasty can maximize surgical efficiency and result in excellent outcomes. Cranioplasty should be considered a low-risk, low-complexity neurosurgical procedure. Safe and efficient management of the temporalis muscle is key.
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Affiliation(s)
- Sahar Sorek
- Division of Neurosurgery, SBH Health System, Bronx, New York, USA
- New York Institute of Technology College of Osteopathic Medicine, Old Westbury, New York, USA
| | - Aaron Miller
- Department of Neurosurgery, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Daniel Griepp
- Division of Neurosurgery, Ascension Providence Hospital, College of Human Medicine, Michigan State University, Southfield, Michigan, USA
| | - Vincy Mathew
- Division of Neurosurgery, SBH Health System, Bronx, New York, USA
- New York Institute of Technology College of Osteopathic Medicine, Old Westbury, New York, USA
| | - Stephanie Moawad
- Division of Neurosurgery, SBH Health System, Bronx, New York, USA
- New York Institute of Technology College of Osteopathic Medicine, Old Westbury, New York, USA
| | - Ralph Rahme
- Division of Neurosurgery, SBH Health System, Bronx, New York, USA
- New York Institute of Technology College of Osteopathic Medicine, Old Westbury, New York, USA
- CUNY School of Medicine, New York, New York, USA
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Quddusi A, Pedro KM, Alvi MA, Hejrati N, Fehlings MG. Early surgical intervention for acute spinal cord injury: time is spine. Acta Neurochir (Wien) 2023; 165:2665-2674. [PMID: 37468659 DOI: 10.1007/s00701-023-05698-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 06/28/2023] [Indexed: 07/21/2023]
Abstract
Acute traumatic spinal cord injury (tSCI) is a devastating occurrence that significantly contributes to global morbidity and mortality. Surgical decompression with stabilization is the most effective way to minimize the damaging sequelae that follow acute tSCI. In recent years, strong evidence has emerged that supports the rationale that early surgical intervention, within 24 h following the initial injury, is associated with a better prognosis and functional outcomes. In this review, we have summarized the evidence and elaborated on the nuances of this concept. Additionally, we have reviewed further concepts that stem from "time is spine," including earlier cutoffs less than 24 h and the challenging entity of central cord syndrome, as well as the emerging concept of adequate surgical decompression. Lastly, we identify barriers to early surgical care for acute tSCI, a key aspect of spine care that needs to be globally addressed via research and policy on an urgent basis.
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Affiliation(s)
- Ayesha Quddusi
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Karlo M Pedro
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
- Division of Neurosurgery and Spine Program, Department of Surgery, University of Toronto, Toronto, ON, Canada
| | - Mohammed Ali Alvi
- Division of Neurosurgery and Spine Program, Department of Surgery, University of Toronto, Toronto, ON, Canada
| | - Nader Hejrati
- Division of Neurosurgery and Spine Program, Department of Surgery, University of Toronto, Toronto, ON, Canada
- Division of Genetics and Development, Krembil Research Institute, University Health Network, Toronto, ON, Canada
| | - Michael G Fehlings
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada.
- Division of Neurosurgery and Spine Program, Department of Surgery, University of Toronto, Toronto, ON, Canada.
- Division of Genetics and Development, Krembil Research Institute, University Health Network, Toronto, ON, Canada.
- Toronto Western Hospital, 399 Bathurst Street, Suite 4WW-449, Toronto, ON, M5T 2S8, Canada.
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Mohammed K, Iqbal J, Arshad M, Abu-Dayeh AS, Albozom I, Alyafei A, Ben Zabih T, Belkhair S. Extensive Foreign Body Reaction to Synthetic Dural Replacement After Decompressive Craniectomy with Radiological and Histopathology Evidence: Observational Case Series. World Neurosurg 2023; 172:e585-e592. [PMID: 36754353 DOI: 10.1016/j.wneu.2023.01.089] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 01/20/2023] [Accepted: 01/20/2023] [Indexed: 02/10/2023]
Abstract
BACKGROUND Though the indications are quite varied, decompressive craniectomy is considered a life-saving procedure. Maximal effectiveness of craniectomy is achieved when, in addition to bone removal, the dura mater is opened properly and is augmented with duraplasty. Different synthetic materials have been used over the decades to replace the dura during decompressive craniectomy. We have used different synthetic dural replacements at our institution, including Neuro-Patch, DuraGen, and Lyoplant. In this case series, we described 4 cases that had excessive granulation tissue formation in response to a newly used synthetic dural substitute (ReDura) after emergent decompressive craniectomy. During follow-up brain imaging at different intervals, these cases were found to have foreign body reaction in the form of excessive granulation tissue formation; additionally, 1 case had a sterile pus-like collection. The granulation tissue diagnosis was affirmed by histopathology in all 4 cases. METHODS This study was an observational retrograde case series, with data obtained from electronic medical records. RESULTS The study showed extensive foreign body giant cell reactions on preoperative computed tomography scans, indicating a very high occurrence rate of 72.4%, when ReDura was used as dural replacement. CONCLUSIONS Our experience showed that patients are prone to develop severe foreign body giant cell reactions with ReDura. Neurosurgical centers using this material should monitor patients for possible abnormal foreign body reaction and report it to establish the safety and efficacy profile of this material.
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Affiliation(s)
- Kazim Mohammed
- Department of Neurosurgery, Hamad Medical Corporation, Hamad General Hospital, Doha, Qatar; Department of Neurosurgery, University of Qatar, Doha, Qatar.
| | - Javeed Iqbal
- Department of Neurosurgery, Hamad Medical Corporation, Hamad General Hospital, Doha, Qatar
| | - Mohsin Arshad
- Department of Neurosurgery, Hamad Medical Corporation, Hamad General Hospital, Doha, Qatar
| | - Ala Saleem Abu-Dayeh
- Department of Pathology, Hamad Medical Corporation, Hamad General Hospital, Doha, Qatar
| | - Issam Albozom
- Department of Pathology, Hamad Medical Corporation, Hamad General Hospital, Doha, Qatar
| | - Abdulnasser Alyafei
- Department of Neurosurgery, Hamad Medical Corporation, Hamad General Hospital, Doha, Qatar
| | - Tarek Ben Zabih
- Department of Neurosurgery, Hamad Medical Corporation, Hamad General Hospital, Doha, Qatar
| | - Sirajeddin Belkhair
- Department of Neurosurgery, Hamad Medical Corporation, Hamad General Hospital, Doha, Qatar; Department of Neurosurgery, Weill Cornell medicine-Qatar, Ar-Rayyan, Qatar; Department of Neurosurgery, University of Qatar, Doha, Qatar
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Hashmi SMM, Nazir S, Colombo F, Jamil A, Ahmed S. Decompressive Craniectomy for the Treatment of Severe Diffuse Traumatic Brain Injury: A Randomized Controlled Trial. Asian J Neurosurg 2022; 17:455-462. [PMID: 36398189 PMCID: PMC9665987 DOI: 10.1055/s-0042-1756636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background Severe traumatic brain injury (TBI) is one of the leading public health problems across the world. TBI is associated with high economic costs to the healthcare system specially in developing countries. Decompressive craniectomy is a procedure in which an area of the skull is removed to increase the volume of intracranial compartment. There are various techniques of decompressive craniectomy used that include subtemporal and circular decompression, and unilateral or bilateral frontotemporoparietal decompression. Objective The aim of this study was to compare the outcome of decompressive craniectomy for the management of severe TBI versus conservative management alone at the Department of Neurosurgery, Abbasi Shaheed Hospital, Karachi, Pakistan. Methods The study (randomized controlled trial) was conducted from February 1, 2014, till June 30, 2017. Results A total of 136 patients were included after following the inclusion criteria. They were randomly assigned to two groups, making it 68 patients in each study group. There were 89 males and 47 females. All the patients received standard care recommended by the Brain Trauma Foundation. The mortality rate observed at 6 months in decompressive craniectomy was 22.05%, while among conservative management group, it was 45.58%. Difference in mortality of both groups at 6 months was significant. Total 61.76% (42) of patients from decompressive craniectomy group had a favorable outcome (Glasgow outcome scale: 4-5) at 6 months. While among conservative management group, total 35.29% (24) had a favorable outcome (Glasgow outcome scale: 4-5). Difference in Glasgow outcome scale at 6 months of both groups was significant. Conclusion In conclusion, decompressive craniectomy is simple, safe, and better than conservative management alone.
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Affiliation(s)
- Syed Muhammad Maroof Hashmi
- Department of Neurosurgery, Abbasi Shaheed Hospital, Karachi, Pakistan,Address for correspondence Syed Muhammad Maroof Hashmi, MBBS, MRCSEd, FRCSEd Department of Neurosurgery, Abbasi Shaheed HospitalKarachi, Pakistan. Postal Address: SU 187, Street 11/A, ASKARI 4, Karachi. 75290Pakistan
| | - Sadaf Nazir
- Department of Neurosurgery, Abbasi Shaheed Hospital, Karachi, Pakistan
| | - Francesca Colombo
- Department of Neurosurgery, Royal Preston Hospital, Lancashire, United Kingdom
| | - Akmal Jamil
- Department of Neurosurgery, Abbasi Shaheed Hospital, Karachi, Pakistan
| | - Shahid Ahmed
- Department of Neurosurgery, Abbasi Shaheed Hospital, Karachi, Pakistan
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Ortuño Andériz F, Rascón Ramírez FJ, Fuentes Ferrer ME, Pardo Rey C, Bringas Bollada M, Postigo Hernández C, García González I, Álvarez González M, Blesa Malpica A. Decompressive craniectomy in traumatic brain injury: The intensivist's point of view. NEUROCIRUGÍA (ENGLISH EDITION) 2021; 32:278-284. [PMID: 34743825 DOI: 10.1016/j.neucie.2021.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 11/01/2020] [Indexed: 11/26/2022]
Abstract
OBJETIVE To perform a score with early clinical and radiological findings after a TBI that identifies the patients who in their subsequent evolution are going to undergo DC. METHOD Observational study of a retrospective cohort of patients who, after a TBI, enter the Neurocritical Section of the Intensive Care Unit of our hospital for a period of 5 years (2014-2018). Detection of clinical and radiological criteria and generation of all possible models with significant, clinically relevant and easy to detect early variables. Selection of the one with the lowest Bayesian Information Criterion and Akaike Information Criterion values for the creation of the score. Calibration and internal validation of the score using the Hosmer-Lemeshow and a bootstrapping analysis with 1000 re-samples respectively. RESULTS 37 DC were performed in 153 patients who were admitted after a TBI. The resulting final model included Cerebral Midline Deviation, GCS and Ventricular Collapse with an Area under ROC Curve: 0.84 (95% IC 0.78-0.91) and Hosmer-Lemeshow p=0.71. The developed score detected well those patients who were going to need an early DC (first 24h) after a TBI (2.5±0.5) but not those who would need it in a later stage of their disease (1.7±0.8). However, it seems to advice us about the patients who, although not requiring an early DC are likely to need it later in their evolution (DC after 24h vs. do not require DC, 1.7±0.8 vs. 1±0.7; p=0.002). CONCLUSION We have developed a prognostic score using early clinical-radiological criteria that, in our environment, detects with good sensitivity and specificity those patients who, after a TBI, will require a DC.
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Affiliation(s)
- Francisco Ortuño Andériz
- Servicio de Medicina Intensiva, Sección de Neurocríticos, Hospital Clínico Universitario San Carlos, Madrid, Spain.
| | | | | | - Cándido Pardo Rey
- Servicio de Medicina Intensiva, Sección de Neurocríticos, Hospital Clínico Universitario San Carlos, Madrid, Spain
| | - María Bringas Bollada
- Servicio de Medicina Intensiva, Sección de Neurocríticos, Hospital Clínico Universitario San Carlos, Madrid, Spain
| | - Carolina Postigo Hernández
- Servicio de Medicina Intensiva, Sección de Neurocríticos, Hospital Clínico Universitario San Carlos, Madrid, Spain
| | - Inés García González
- Servicio de Medicina Intensiva, Sección de Neurocríticos, Hospital Clínico Universitario San Carlos, Madrid, Spain
| | - Manuel Álvarez González
- Servicio de Medicina Intensiva, Sección de Neurocríticos, Hospital Clínico Universitario San Carlos, Madrid, Spain
| | - Antonio Blesa Malpica
- Servicio de Medicina Intensiva, Sección de Neurocríticos, Hospital Clínico Universitario San Carlos, Madrid, Spain
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Sam JE, Kandasamy R, Wong ASH, Ghani ARI, Ang SY, Idris Z, Abdullah JM. Vacuum Drains versus Passive Drains versus No Drains in Decompressive Craniectomies-A Randomized Controlled Trial on Subgaleal Drain Complication Rates (VADER Trial). World Neurosurg 2021; 156:e381-e391. [PMID: 34563715 DOI: 10.1016/j.wneu.2021.09.074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 09/14/2021] [Accepted: 09/15/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVE Subgaleal drains are generally deemed necessary for cranial surgeries including decompressive craniectomies (DCs) to avoid excessive postoperative subgaleal hematoma (SGH) formation. Many surgeries have moved away from routine prophylactic drainage but the role of subgaleal drainage in cranial surgeries has not been addressed. METHODS This was a randomized controlled trial at 2 centers. A total of 78 patients requiring DC were randomized in a 1:1:1 ratio into 3 groups: vacuum drains (VD), passive drains (PD), and no drains (ND). Complications studied were need for surgical revision, SGH amount, new remote hematomas, postcraniectomy hydrocephalus (PCH), functional outcomes, and mortality. RESULTS Only 1 VD patient required surgical revision to evacuate SGH. There was no difference in SGH thickness and volume among the 3 drain types (P = 0.171 and P = 0.320, respectively). Rate of new remote hematoma and PCH was not significantly different (P = 0.647 and P = 0.083, respectively), but the ND group did not have any patient with PCH. In the subgroup analysis of 49 patients with traumatic brain injury, the SGH amount of the PD and ND group was significantly higher than that of the VD group. However, these higher amounts did not translate as a significant risk factor for poor functional outcome or mortality. VD may have better functional outcome and mortality. CONCLUSIONS In terms of complication rates, VD, PD, and ND may be used safely in DC. A higher amount of SGH was not associated with poorer outcomes. Further studies are needed to clarify the advantage of VD regarding functional outcome and mortality, and if ND reduces PCH rates.
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Affiliation(s)
- Jo Ee Sam
- Department of Neurosciences, School of Medical Sciences, Jalan Hospital USM, Universiti Sains Malaysia Health Campus, Kota Bharu, Kelantan, Malaysia; Department of Neurosurgery, Hospital Umum Sarawak, Jalan Hospital, Sarawak, Malaysia.
| | - Regunath Kandasamy
- Department of Neurosciences, School of Medical Sciences, Jalan Hospital USM, Universiti Sains Malaysia Health Campus, Kota Bharu, Kelantan, Malaysia
| | - Albert Sii Hieng Wong
- Department of Neurosurgery, Hospital Umum Sarawak, Jalan Hospital, Sarawak, Malaysia
| | - Abdul Rahman Izaini Ghani
- Department of Neurosciences, School of Medical Sciences, Jalan Hospital USM, Universiti Sains Malaysia Health Campus, Kota Bharu, Kelantan, Malaysia
| | - Song Yee Ang
- Department of Neurosciences, School of Medical Sciences, Jalan Hospital USM, Universiti Sains Malaysia Health Campus, Kota Bharu, Kelantan, Malaysia
| | - Zamzuri Idris
- Department of Neurosciences, School of Medical Sciences, Jalan Hospital USM, Universiti Sains Malaysia Health Campus, Kota Bharu, Kelantan, Malaysia
| | - Jafri Malin Abdullah
- Department of Neurosciences & Brain Behaviour Cluster, Hospital Universiti Sains, Malaysia, Universiti Sains Malaysia, Health Campus, Kota Bharu, Kelantan, Malaysia
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9
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Meyer H, Khalid SI, Dorafshar AH, Byrne RW. The Materials Utilized in Cranial Reconstruction: Past, Current, and Future. Plast Surg (Oakv) 2021; 29:184-196. [PMID: 34568234 PMCID: PMC8436325 DOI: 10.1177/2292550320928560] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Cranioplasty (CP) is associated with high complication rates compared to other common neurosurgical procedures. Several graft materials are used for CP, which may contribute to the high complication rates, but data in the literature regarding the influence of graft material on post-CP outcomes are inconsistent making it difficult to determine if, when, and to what extent the graft material impacts the rate of perioperative complications. There is an increased demand to identify and develop superior graft materials. OBJECTIVE To review and compare the indications, risks, complications, and patient results associated with the use of different graft materials for cranial reconstructions. DESIGN A search through EBSCOhost was conducted using the keywords "craniectomy" or "decompressive craniectomy," "cranioplasty," and "materials." The search was limited to literature published in the English language from 2005 until the present. Ultimately, 69 articles were included in this review. Due to the heterogeneity of the study populations, results, statistical analyses, and collecting methods, no statistical analyses could be performed. CONCLUSIONS Several graft materials have been adapted for use in cranial reconstructions with inconsistent results making it unclear if or when one material may be indicated over others. Advances in computer-aided design have led to improved patient-specific implants, but the ideal graft material is still being sought after in ongoing research efforts. Reviewing materials currently available, as well as those in clinical trials, is important to identify the limitations associated with different implants and to guide future research.
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Affiliation(s)
- Haley Meyer
- Rosalind Franklin University of Medicine and Science, Chicago Medical School, North Chicago, IL, USA
| | - Syed I. Khalid
- Rosalind Franklin University of Medicine and Science, Chicago Medical School, North Chicago, IL, USA
- Department of Surgery, Rush University Medical Center, Chicago, IL, USA
| | - Amir H. Dorafshar
- Department of Plastic and Reconstructive Surgery, Rush University Medical Center, Chicago, IL
| | - Richard W. Byrne
- Department of Neurosurgery, Rush University Medical Center, Chicago, IL
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10
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Ortuño Andériz F, Rascón Ramírez FJ, Fuentes Ferrer ME, Pardo Rey C, Bringas Bollada M, Postigo Hernández C, García González I, Álvarez González M, Blesa Malpica A. Decompressive craniectomy in traumatic brain injury: the intensivist's point of view. Neurocirugia (Astur) 2020; 32:S1130-1473(20)30132-9. [PMID: 33384226 DOI: 10.1016/j.neucir.2020.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 10/26/2020] [Accepted: 11/01/2020] [Indexed: 11/16/2022]
Abstract
OBJETIVE To perform a score with early clinical and radiological findings after a TBI that identifies the patients who in their subsequent evolution are going to undergo DC. METHOD Observational study of a retrospective cohort of patients who, after a TBI, enter the Neurocritical Section of the Intensive Care Unit of our hospital for a period of 5 years (2014-2018). Detection of clinical and radiological criteria and generation of all possible models with significant, clinically relevant and easy to detect early variables. Selection of the one with the lowest Bayesian Information Criterion and Akaike Information Criterion values for the creation of the score. Calibration and internal validation of the score using the Hosmer-Lemeshow and a bootstrapping analysis with 1,000 re-samples respectively. RESULTS 37 DC were performed in 153 patients who were admitted after a TBI. The resulting final model included Cerebral Midline Deviation, GCS and Ventricular Collapse with an Area under ROC Curve: 0.84 (95% IC 0.78-0.91) and Hosmer-Lemeshow p=0.71. The developed score detected well those patients who were going to need an early DC (first 24hours) after a TBI (2.5±0.5) but not those who would need it in a later stage of their disease (1.7±0.8). However, it seems to advice us about the patients who, although not requiring an early DC are likely to need it later in their evolution (DC after 24hours vs do not require DC, 1.7±0.8 vs 1±0.7; p=0.002). CONCLUSION We have developed a prognostic score using early clinical-radiological criteria that, in our environment, detects with good sensitivity and specificity those patients who, after a TBI, will require a DC.
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Affiliation(s)
- Francisco Ortuño Andériz
- Servicio de Medicina Intensiva, Sección de Neurocríticos, Hospital Clínico Universitario San Carlos, Madrid, España.
| | | | | | - Cándido Pardo Rey
- Servicio de Medicina Intensiva, Sección de Neurocríticos, Hospital Clínico Universitario San Carlos, Madrid, España
| | - María Bringas Bollada
- Servicio de Medicina Intensiva, Sección de Neurocríticos, Hospital Clínico Universitario San Carlos, Madrid, España
| | - Carolina Postigo Hernández
- Servicio de Medicina Intensiva, Sección de Neurocríticos, Hospital Clínico Universitario San Carlos, Madrid, España
| | - Inés García González
- Servicio de Medicina Intensiva, Sección de Neurocríticos, Hospital Clínico Universitario San Carlos, Madrid, España
| | - Manuel Álvarez González
- Servicio de Medicina Intensiva, Sección de Neurocríticos, Hospital Clínico Universitario San Carlos, Madrid, España
| | - Antonio Blesa Malpica
- Servicio de Medicina Intensiva, Sección de Neurocríticos, Hospital Clínico Universitario San Carlos, Madrid, España
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Decompressive Craniectomy for Traumatic Brain Injury: In-hospital Mortality-Associated Factors. J Neurosci Rural Pract 2020; 11:601-608. [PMID: 33144798 PMCID: PMC7595803 DOI: 10.1055/s-0040-1715998] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Abstract
Objective Determine predictors of in-hospital mortality in patients with severe traumatic brain injury (TBI) who underwent decompressive craniectomy. Materials and Methods This retrospective study reviewed consecutive patients who underwent a decompressive craniectomy between March 2017 and March 2020 at our institution, and analyzed clinical characteristics, brain tomographic images, surgical details and morbimortality associated with this procedure. Results Thirty-three (30 unilateral and 3 bifrontal) decompressive craniectomies were performed, of which 27 patients were male (81.8%). The mean age was 52.18 years, the mean Glasgow coma scale (GCS) score at admission was 9, and 24 patients had anisocoria (72.7%). Falls were the principal cause of the trauma (51.5%), the mean anterior-posterior diameter (APD) of the bone flap in unilateral cases was 106.81 mm (standard deviation [SD] 20.42) and 16 patients (53.3%) underwent a right-sided hemicraniectomy. The temporal bone enlargement was done in 20 cases (66.7%), the mean time of surgery was 2 hours and 27 minutes, the skull flap was preserved in the subcutaneous layer in 29 cases (87.8%), the mean of blood loss was 636.36 mL,and in-hospital mortality was 12%. Univariate analysis found differences between the APD diameter (120.3 mm vs. 85.3 mm; p = 0.003) and the presence of midline shift > 5 mm ( p = 0.033). Conclusion The size of the skull flap and the presence of midline shift > 5 mm were predictors of mortality. In the absence of intercranial pressure (ICP) monitoring, clinical and radiological criteria are mandatory to perform a decompressive craniectomy.
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12
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Harris L, Hill CS. Craniectomy size for subdural haematomas and the impact on brain shift and outcomes. Acta Neurochir (Wien) 2020; 162:2019-2027. [PMID: 32556813 DOI: 10.1007/s00701-020-04448-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 06/04/2020] [Indexed: 11/26/2022]
Abstract
BACKGROUND Midline shift in trauma relates to the severity of head injury. Large craniectomies are thought to help resolve brain shift but can be associated with higher rates of morbidity. This study explores the relationship between craniectomy size and subtemporal decompression for acute subdural haematomas with the resolution of brain compression and outcomes. No systematic study correlating these measures has been reported. METHOD A retrospective study of all adult cases of acute subdural haematomas that presented to a Major Trauma Centre and underwent a primary decompressive craniectomy between June 2008 and August 2013. Data collection included patient demographics and presentation, imaging findings and outcomes. All imaging metrics were measured by two independent trained assessors. Compression was measured as midline shift, brainstem shift and cisternal effacement. RESULTS Thirty-six patients with mean age of 36.1 ± 12.5 (range 16-62) were included, with a median follow-up of 23.5 months (range 2.2-109.6). The median craniectomy size was 88.7 cm2 and the median subtemporal decompression was 15.0 mm. There was significant post-operative resolution of shift as measured by midline shift, brainstem shift and cisternal effacement score (all p < .00001). There was no mortality, and the majority of patients made a good recovery with 82.8% having a Modified Rankin Score of 2 or less. There was no association between craniectomy size or subtemporal decompression and any markers of brain shift or outcome (all R2 < 0.05). CONCLUSIONS This study suggests that there is no clear relationship between craniectomy size or extent of subtemporal decompression and resolution of brain shift or outcome. Further studies are needed to assess the relative efficacy of large craniectomies and the role of subtemporal decompression.
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Affiliation(s)
- Lauren Harris
- Department of Neurosurgery, The Royal London Hospital, London, E1 1BB, UK.
| | - Ciaran Scott Hill
- Department of Neurosurgery, The National Hospital for Neurology and Neurosurgery, London, W1B 3GG, UK
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13
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Kung WM, Tzeng IS, Lin MS. Three-Dimensional CAD in Skull Reconstruction: A Narrative Review with Focus on Cranioplasty and Its Potential Relevance to Brain Sciences. APPLIED SCIENCES-BASEL 2020. [DOI: https://doi.org/10.3390/app10051847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
In patients suffering from severe traumatic brain injury and massive stroke (hemorrhagic or ischemic), decompressive craniectomy (DC) is a surgical strategy used to reduce intracranial pressure, and to prevent brainstem compromise from subsequent brain edema. In surviving patients, cranioplasty surgery helps to protect brain tissue, and correct the external deformity. The aesthetic outcome of cranioplasty using an asymmetrical implant can negatively influence patients physically and mentally, especially young patients. Advancements in the development of biomaterials have now made three-dimensional (3-D) computer-assisted design/manufacturing (CAD/CAM)-fabricated implants an optimal choice for the repair of skull defects following DC. Here, we summarize the various materials for cranioplasty, including xenogeneic, autogenous, and alloplastic grafts. The processing procedures of the CAD/CAM technique are briefly outlined, and reflected our experiences to reconstruct skull CAD models using commercial software, published previously, to assess aesthetic outcomes of regular 3-D CAD models without contouring elevation or depression. The establishment of a 3-D CAD model ensures a possibility for better aesthetic outcomes of CAM-derived alloplastic implants. Finally, clinical consideration of the CAD algorithms for adjusting contours and their potential application in prospective healthcare are briefly outlined.
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14
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Three-Dimensional CAD in Skull Reconstruction: A Narrative Review with Focus on Cranioplasty and Its Potential Relevance to Brain Sciences. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10051847] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
In patients suffering from severe traumatic brain injury and massive stroke (hemorrhagic or ischemic), decompressive craniectomy (DC) is a surgical strategy used to reduce intracranial pressure, and to prevent brainstem compromise from subsequent brain edema. In surviving patients, cranioplasty surgery helps to protect brain tissue, and correct the external deformity. The aesthetic outcome of cranioplasty using an asymmetrical implant can negatively influence patients physically and mentally, especially young patients. Advancements in the development of biomaterials have now made three-dimensional (3-D) computer-assisted design/manufacturing (CAD/CAM)-fabricated implants an optimal choice for the repair of skull defects following DC. Here, we summarize the various materials for cranioplasty, including xenogeneic, autogenous, and alloplastic grafts. The processing procedures of the CAD/CAM technique are briefly outlined, and reflected our experiences to reconstruct skull CAD models using commercial software, published previously, to assess aesthetic outcomes of regular 3-D CAD models without contouring elevation or depression. The establishment of a 3-D CAD model ensures a possibility for better aesthetic outcomes of CAM-derived alloplastic implants. Finally, clinical consideration of the CAD algorithms for adjusting contours and their potential application in prospective healthcare are briefly outlined.
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15
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Chen J, Li M, Chen L, Chen W, Zhang C, Feng Y, Wang Y, Chen Q. The Effect of Controlled Decompression for Severe Traumatic Brain Injury: A Randomized, Controlled Trial. Front Neurol 2020; 11:107. [PMID: 32132972 PMCID: PMC7040242 DOI: 10.3389/fneur.2020.00107] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 01/30/2020] [Indexed: 11/29/2022] Open
Abstract
Background: Experimental evidence has indicated the benefits of intraoperative controlled decompression for the treatment of severe traumatic brain injury (sTBI). Intraoperative rapid decompression (conventional decompression) for the treatment of sTBI may result in intra- and post-operative complications. Controlled decompression may reduce these complications. Previous clinical trials in China have not yielded conclusive results regarding controlled decompression for sTBI. Therefore, we explored whether controlled decompression treatment decreases the rates of complications and improves the outcomes of patients with sTBI. Methods: We performed this randomized, controlled trial at our hospital. Patients with sTBI aged 18–75 years old were randomly (1:1) divided into controlled decompression surgery (n = 124) or rapid decompression surgery groups (n = 124). The primary outcome measures were the Extended Glasgow Outcome Scale (GOS-E) score at 6 months and 30-days all-cause mortality. The secondary outcomes were the incidences of intraoperative brain swelling, post-traumatic cerebral infarction, and delayed hematoma. Results: Compared with the rapid decompression group, the controlled decompression group had reduced 30-days all-cause mortality (18.6 vs. 30.8%, P = 0.035) and improved the 6-months GOS-E scores, and the difference was significant. In addition, the patients in the controlled decompression group had a lower intraoperative brain swelling rate (13.3 vs. 24.3%, P = 0.036), a lower delayed hematoma rate (17.7 vs. 29.0%, P = 0.048) and a relatively lower post-traumatic cerebral infarction rate (15.0 vs. 22.4%, P = 0.127) than those in the rapid decompression group. Conclusions: Our data suggest that controlled decompression surgery significantly improves sTBI outcomes and decreases the rates of sTBI-related complications. However, this was a single-hospital study, and well-designed multicenter randomized controlled trials are needed to evaluate the effects of controlled decompression surgery for the management of patients with sTBI. Clinical Trial Registration: Chinese Clinical Trial Registry; Date: 14/Dec/2013; Number: ChiCTR-TCC-13004002.
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Affiliation(s)
- Junhui Chen
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China.,Department of Neurosurgery, Wuxi Clinical College of Anhui Medical University, 904th Hospital of Joint Logistic Support Force of PLA, Wuxi, China
| | - Mingchang Li
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Lei Chen
- Department of Neurosurgery, Wuxi Clinical College of Anhui Medical University, 904th Hospital of Joint Logistic Support Force of PLA, Wuxi, China
| | - Weiliang Chen
- Department of Neurosurgery, Wuxi Clinical College of Anhui Medical University, 904th Hospital of Joint Logistic Support Force of PLA, Wuxi, China
| | - Chunlei Zhang
- Department of Neurosurgery, Wuxi Clinical College of Anhui Medical University, 904th Hospital of Joint Logistic Support Force of PLA, Wuxi, China
| | - Yi Feng
- Department of Neurosurgery, Wuxi Clinical College of Anhui Medical University, 904th Hospital of Joint Logistic Support Force of PLA, Wuxi, China
| | - Yuhai Wang
- Department of Neurosurgery, Wuxi Clinical College of Anhui Medical University, 904th Hospital of Joint Logistic Support Force of PLA, Wuxi, China
| | - Qianxue Chen
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, China
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16
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Sahuquillo J, Dennis JA. Decompressive craniectomy for the treatment of high intracranial pressure in closed traumatic brain injury. Cochrane Database Syst Rev 2019; 12:CD003983. [PMID: 31887790 PMCID: PMC6953357 DOI: 10.1002/14651858.cd003983.pub3] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND High intracranial pressure (ICP) is the most frequent cause of death and disability after severe traumatic brain injury (TBI). It is usually treated with general maneuvers (normothermia, sedation, etc.) and a set of first-line therapeutic measures (moderate hypocapnia, mannitol, etc.). When these measures fail, second-line therapies are initiated, which include: barbiturates, hyperventilation, moderate hypothermia, or removal of a variable amount of skull bone (secondary decompressive craniectomy). OBJECTIVES To assess the effects of secondary decompressive craniectomy (DC) on outcomes of patients with severe TBI in whom conventional medical therapeutic measures have failed to control raised ICP. SEARCH METHODS The most recent search was run on 8 December 2019. We searched the Cochrane Injuries Group's Specialised Register, CENTRAL (Cochrane Library), Ovid MEDLINE(R), Ovid MEDLINE(R) In-Process & Other Non-Indexed Citations, Ovid MEDLINE(R) Daily and Ovid OLDMEDLINE(R), Embase Classic + Embase (OvidSP) and ISI Web of Science (SCI-EXPANDED & CPCI-S). We also searched trials registries and contacted experts. SELECTION CRITERIA We included randomized studies assessing patients over the age of 12 months with severe TBI who either underwent DC to control ICP refractory to conventional medical treatments or received standard care. DATA COLLECTION AND ANALYSIS We selected potentially relevant studies from the search results, and obtained study reports. Two review authors independently extracted data from included studies and assessed risk of bias. We used a random-effects model for meta-analysis. We rated the quality of the evidence according to the GRADE approach. MAIN RESULTS We included three trials (590 participants). One single-site trial included 27 children; another multicenter trial (three countries) recruited 155 adults, the third trial was conducted in 24 countries, and recruited 408 adolescents and adults. Each study compared DC combined with standard care (this could include induced barbiturate coma or cooling of the brain, or both). All trials measured outcomes up to six months after injury; one also measured outcomes at 12 and 24 months (the latter data remain unpublished). All trials were at a high risk of bias for the criterion of performance bias, as neither participants nor personnel could be blinded to these interventions. The pediatric trial was at a high risk of selection bias and stopped early; another trial was at risk of bias because of atypical inclusion criteria and a change to the primary outcome after it had started. Mortality: pooled results for three studies provided moderate quality evidence that risk of death at six months was slightly reduced with DC (RR 0.66, 95% CI 0.43 to 1.01; 3 studies, 571 participants; I2 = 38%; moderate-quality evidence), and one study also showed a clear reduction in risk of death at 12 months (RR 0.59, 95% CI 0.45 to 0.76; 1 study, 373 participants; high-quality evidence). Neurological outcome: conscious of controversy around the traditional dichotomization of the Glasgow Outcome Scale (GOS) scale, we chose to present results in three ways, in order to contextualize factors relevant to clinical/patient decision-making. First, we present results of death in combination with vegetative status, versus other outcomes. Two studies reported results at six months for 544 participants. One employed a lower ICP threshold than the other studies, and showed an increase in the risk of death/vegetative state for the DC group. The other study used a more conventional ICP threshold, and results favoured the DC group (15.7% absolute risk reduction (ARR) (95% CI 6% to 25%). The number needed to treat for one beneficial outcome (NNTB) (i.e. to avoid death or vegetative status) was seven. The pooled result for DC compared with standard care showed no clear benefit for either group (RR 0.99, 95% CI 0.46 to 2.13; 2 studies, 544 participants; I2 = 86%; low-quality evidence). One study reported data for this outcome at 12 months, when the risk for death or vegetative state was clearly reduced by DC compared with medical treatment (RR 0.68, 95% CI 0.54 to 0.86; 1 study, 373 participants; high-quality evidence). Second, we assessed the risk of an 'unfavorable outcome' evaluated on a non-traditional dichotomized GOS-Extended scale (GOS-E), that is, grouping the category 'upper severe disability' into the 'good outcome' grouping. Data were available for two studies (n = 571). Pooling indicated little difference between DC and standard care regarding the risk of an unfavorable outcome at six months following injury (RR 1.06, 95% CI 0.69 to 1.63; 544 participants); heterogeneity was high, with an I2 value of 82%. One trial reported data at 12 months and indicated a clear benefit of DC (RR 0.81, 95% CI 0.69 to 0.95; 373 participants). Third, we assessed the risk of an 'unfavorable outcome' using the (traditional) dichotomized GOS/GOS-E cutoff into 'favorable' versus 'unfavorable' results. There was little difference between DC and standard care at six months (RR 1.00, 95% CI 0.71 to 1.40; 3 studies, 571 participants; low-quality evidence), and heterogeneity was high (I2 = 78%). At 12 months one trial suggested a similar finding (RR 0.95, 95% CI 0.83 to 1.09; 1 study, 373 participants; high-quality evidence). With regard to ICP reduction, pooled results for two studies provided moderate quality evidence that DC was superior to standard care for reducing ICP within 48 hours (MD -4.66 mmHg, 95% CI -6.86 to -2.45; 2 studies, 182 participants; I2 = 0%). Data from the third study were consistent with these, but could not be pooled. Data on adverse events are difficult to interpret, as mortality and complications are high, and it can be difficult to distinguish between treatment-related adverse events and the natural evolution of the condition. In general, there was low-quality evidence that surgical patients experienced a higher risk of adverse events. AUTHORS' CONCLUSIONS Decompressive craniectomy holds promise of reduced mortality, but the effects of long-term neurological outcome remain controversial, and involve an examination of the priorities of participants and their families. Future research should focus on identifying clinical and neuroimaging characteristics to identify those patients who would survive with an acceptable quality of life; the best timing for DC; the most appropriate surgical techniques; and whether some synergistic treatments used with DC might improve patient outcomes.
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Affiliation(s)
- Juan Sahuquillo
- Vall d'Hebron University HospitalDepartment of NeurosurgeryUniversitat Autònoma de BarcelonaPaseo Vall d'Hebron 119 ‐ 129BarcelonaBarcelonaSpain08035
| | - Jane A Dennis
- University of BristolMusculoskeletal Research Unit, School of Clinical SciencesLearning and Research Building [Level 1]Southmead HospitalBristolUKBS10 5NB
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17
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Kwan K, Schneider J, Ullman JS. Chapter 12: Decompressive Craniectomy: Long Term Outcome and Ethical Considerations. Front Neurol 2019; 10:876. [PMID: 31555193 PMCID: PMC6742692 DOI: 10.3389/fneur.2019.00876] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Accepted: 07/29/2019] [Indexed: 11/13/2022] Open
Abstract
Decompressive craniectomy (DC) for the treatment of severe traumatic brain injury (TBI) has been established to decrease mortality. Despite the conclusion of the two largest randomized clinical trials associating the effectiveness of decompressive craniectomy vs. medical management for patients with traumatic brain injury (TBI), there is still clinical equipoise concerning the usefulness of DC in the management of refractory intracranial hypertension. Primary outcome data from these studies reveal either potential harm or that decreased mortality only leads to an upsurge in survivors with severe neurologic incapacity. In this chapter, we seek to review the results of the most recent clinical trials, highlight the prevailing controversies, and offer potential solutions to address this dilemma.
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Affiliation(s)
- Kevin Kwan
- Department of Neurosurgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, United States
| | - Julia Schneider
- Department of Neurosurgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, United States
| | - Jamie S Ullman
- Department of Neurosurgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, United States
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18
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Pérez‐Alfayate R, Sallabanda‐Diaz K. Primary bilateral fronto-temporoparietal decompressive craniectomy-An alternative treatment for severe traumatic brain injury: Case report and technical note. Clin Case Rep 2019; 7:1031-1039. [PMID: 31110740 PMCID: PMC6509892 DOI: 10.1002/ccr3.2143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 03/05/2019] [Accepted: 03/23/2019] [Indexed: 11/12/2022] Open
Abstract
Bilateral fronto-temporoparietal decompressive craniectomy provides bigger area of the decompression that decreases the brain tissue herniation; therefore, it leads to a decrease in the neuronal stretching effect that is probably related to functional outcomes.
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19
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Fiss I, Bettag C, Schatlo B, von Eckardstein K, Tsogkas I, Schwarz A, von der Brelie C, Rohde V. Prophylactic enlargement of the thecal sac volume by spinal expansion duroplasty in patients with unresectable malignant intramedullary tumors and metastases prior to radiotherapy. Neurosurg Rev 2018; 43:273-279. [PMID: 30426355 DOI: 10.1007/s10143-018-1051-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 10/14/2018] [Accepted: 11/01/2018] [Indexed: 10/27/2022]
Abstract
Unresectable malignant intramedullary tumors and metastases usually require radiotherapy which intensifies spinal cord edema and might result in neurological decline. Spinal expansion duroplasty before radiotherapy enlarges the intrathecal volume and might thus prevent neurological deficits. The study aims to evaluate the clinical course of patients undergoing expansion duroplasty. This retrospective analysis (2007-2016) included all patients with unresectable intramedullary tumors who underwent spinal expansion duroplasty. To assess the degree of preoperative cord enlargement, we calculated the "diameter ratio": diameter of the spinal cord below and above the tumor / diameter of the tumor × 2. The presence of perimedullary cerebrospinal fluid (CSF) at the affected levels was analyzed on the preoperative magnetic resonance imaging (MRI). We recorded the occurrence of neurological deficits, wound breakdown, and CSF fistula. We screened 985 patients, 11 of which were included. Eight patients had an intramedullary metastasis, three patients a spinal malignant glioma. A diameter ratio ≤ 0.8 representing a significant preoperative intramedullary enlargement was seen in 10 cases (90.9%). Postoperative imaging was available in 9 patients, demonstrating successful decompression in 8 of the 9 patients (88.9%). The postoperative course was uneventful in 9 patients (81.8%). Mean overall survival was 13.4 (SD 16.2) months. Spinal expansion duroplasty prior to radiotherapy is a previously undescribed concept. Despite neoadjuvant radiation, no wound breakdown or CSF fistula occurred. In unresectable intramedullary tumors and metastases, spinal expansion duroplasty seems to be a safe procedure with the potential to prevent neurological decline due to radiation-induced cord swelling.
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Affiliation(s)
- Ingo Fiss
- Department of Neurosurgery, Medical Center, Georg August University of Göttingen, Göttingen, Germany.
| | - C Bettag
- Department of Neurosurgery, Medical Center, Georg August University of Göttingen, Göttingen, Germany
| | - B Schatlo
- Department of Neurosurgery, Medical Center, Georg August University of Göttingen, Göttingen, Germany
| | - K von Eckardstein
- Department of Neurosurgery, Medical Center, Georg August University of Göttingen, Göttingen, Germany
| | - I Tsogkas
- Department of Neuroradiology, Medical Center, Georg August University of Göttingen, Göttingen, Germany
| | - A Schwarz
- Department of Neuroradiology, Medical Center, Georg August University of Göttingen, Göttingen, Germany
| | - C von der Brelie
- Department of Neurosurgery, Medical Center, Georg August University of Göttingen, Göttingen, Germany
| | - V Rohde
- Department of Neurosurgery, Medical Center, Georg August University of Göttingen, Göttingen, Germany
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20
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Shim HK, Yu SH, Kim BC, Lee JH, Choi HJ. Relationship between Clinical Outcomes and Superior Sagittal Sinus to Bone Flap Distance during Unilateral Decompressive Craniectomy in Patients with Traumatic Brain Injury: Experience at a Single Trauma Center. Korean J Neurotrauma 2018; 14:99-104. [PMID: 30402426 PMCID: PMC6218355 DOI: 10.13004/kjnt.2018.14.2.99] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 08/03/2018] [Accepted: 08/10/2018] [Indexed: 01/21/2023] Open
Abstract
Objective This retrospective study was conducted to investigate the relationship between the superior sagittal sinus (SSS) to bone flap distance and clinical outcome in patients with traumatic brain injury (TBI) who underwent decompressive craniectomy (DC). Methods A retrospective review of medical records identified 255 adult patients who underwent DC with hematoma removal to treat TBI at our hospital from 2016 through 2017; of these, 68 patients met the inclusion criteria and underwent unilateral DC. The nearest SSS to bone flap distances were measured on postoperative brain computed tomography images, and patients were divided into groups A (distance ≥20 mm) and B (distance <20 mm). The estimated blood loss (EBL) and operation time were evaluated using anesthesia records, and the time spent in an intensive care unit (ICU) was obtained by chart review. The clinical outcome was rated using the extended Glasgow Outcome Scale (GOS-E) at 3 and 6 months postoperatively. Results The male to female ratio was 15:2 and the mean subject age was 55.12 years (range, 18–79 years). The mean EBL and operation times were significantly different between groups A and B (EBL: 655.26 vs. 1803.33 mL, p<0.001; operation time: 125.92 vs. 144.83 min, p<0.001). The time spent in the ICU and GOS-E scores did not differ significantly between the groups. Conclusion We recommend that when DC is indicated due to TBI, an SSS to bone flap distance of at least 20 mm should be maintained, considering the EBL, operation time, and other outcomes.
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Affiliation(s)
- Hyuk Ki Shim
- Department of Neurosurgery and Medical Research Institute, Pusan National University Hospital, Pusan National University School of Medicine, Busan, Korea
| | - Seung Han Yu
- Department of Neurosurgery and Medical Research Institute, Pusan National University Hospital, Pusan National University School of Medicine, Busan, Korea
| | - Byung Chul Kim
- Department of Neurosurgery and Medical Research Institute, Pusan National University Hospital, Pusan National University School of Medicine, Busan, Korea
| | - Jung Hwan Lee
- Department of Neurosurgery and Medical Research Institute, Pusan National University Hospital, Pusan National University School of Medicine, Busan, Korea
| | - Hyuk Jin Choi
- Department of Neurosurgery and Medical Research Institute, Pusan National University Hospital, Pusan National University School of Medicine, Busan, Korea
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Kolar M, Nohejlova K, Duska F, Mares J, Pachl J. Changes of cortical perfusion in the early phase of subarachnoid bleeding in a rat model and the role of intracranial hypertension. Physiol Res 2018; 66:S545-S551. [PMID: 29355383 DOI: 10.33549/physiolres.933795] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Brain perfusion is reduced early after subarachnoid hemorrhage (SAH) due to intracranial hypertension and early vasospasm. The contribution of these two mechanisms is unknown. By performing a prophylactic decompressive craniectomy (DC) in a rat model of SAH we aimed to study brain perfusion after the component of intracranial hypertension has been eliminated. We used 2x2 factorial design, where rats received either decompressive craniectomy or sham operation followed by injection of 250 microl of blood or normal saline into prechiasmatic cistern. The cortical perfusion has been continually measured by laser speckle-contrast analysis for 30 min. Injection of blood caused a sudden increase of intracranial pressure (ICP) and drop of cerebral perfusion, which returned to baseline within 6 min. DC effectively prevented the rise of ICP, but brain perfusion after SAH was significantly lower and took longer to normalize compared to non-DC animals due to increased cerebral vascular resistance, which lasted throughout 30 min experimental period. Our findings suggest that intracranial hypertension plays dominant role in the very early hypoperfusion after SAH whilst the role of early vasospasm is only minor. Prophylactic DC effectively maintained cerebral perfusion pressure, but worsened cerebral perfusion by increased vascular resistance.
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Affiliation(s)
- M Kolar
- Department of Anesthesiology and Critical Care Medicine, Teaching Hospital Kralovske Vinohrady and Third Faculty of Medicine, Charles University, Prague, Czech Republic.
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Grassner L, Grillhösl A, Griessenauer CJ, Thomé C, Bühren V, Strowitzki M, Winkler PA. Spinal Meninges and Their Role in Spinal Cord Injury: A Neuroanatomical Review. J Neurotrauma 2017; 35:403-410. [PMID: 28922957 DOI: 10.1089/neu.2017.5215] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Current recommendations support early surgical decompression and blood pressure augmentation after traumatic spinal cord injury (SCI). Elevated intraspinal pressure (ISP), however, has probably been underestimated in the pathophysiology of SCI. Recent studies provide some evidence that ISP measurements and durotomy may be beneficial for individuals suffering from SCI. Compression of the spinal cord against the meninges in SCI patients causes a "compartment-like" syndrome. In such cases, intentional durotomy with augmentative duroplasty to reduce ISP and improve spinal cord perfusion pressure (SCPP) may be indicated. Prior to performing these procedures routinely, profound knowledge of the spinal meninges is essential. Here, we provide an in-depth review of relevant literature along with neuroanatomical illustrations and imaging correlates.
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Affiliation(s)
- Lukas Grassner
- 1 Department of Neurosurgery, Trauma Center Murnau , Germany .,2 Center for Spinal Cord Injuries, Trauma Center Murnau , Germany .,3 Institute of Molecular Regenerative Medicine, Paracelsus Medical University , Salzburg, Austria .,4 Spinal Cord Injury and Tissue Regeneration Center Salzburg, Paracelsus Medical University , Salzburg, Austria
| | | | - Christoph J Griessenauer
- 6 Department of Neurosurgery, Geisinger Health System , Danville, Pennsylvania.,7 Neurosurgical Service, Department of Surgery, Harvard Medical School , Boston, Massachusetts
| | - Claudius Thomé
- 8 Department of Neurosurgery, Medical University Innsbruck , Austria
| | - Volker Bühren
- 2 Center for Spinal Cord Injuries, Trauma Center Murnau , Germany
| | | | - Peter A Winkler
- 9 Department of Neurosurgery, Christian Doppler Clinic, Paracelsus Medical University , Salzburg, Austria
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Yang XF, Wang H, Wen L, Huang X, Li G, Gong JB. The safety of simultaneous cranioplasty and shunt implantation. Brain Inj 2017; 31:1651-1655. [PMID: 28898108 DOI: 10.1080/02699052.2017.1332781] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
BACKGROUND A large cranial defect combined with hydrocephalus is a frequent sequela of decompressive craniectomy (DC) performed to treat malignant intracranial hypertension. Currently, many neurosurgeons perform simultaneous cranioplasty and shunt implantation on such patients, but the safety of this combined procedure remains controversial. METHODS We retrospectively evaluated 58 patients treated via cranioplasty and shunt implantation after DC. Twenty patients underwent simultaneous procedures (simultaneous operation group) and 38 underwent staged procedures (staged operation group). We collected and analysed demographic data, information on disease histories, and clinical findings. RESULTS The overall complication rate was 19%. The two groups did not significantly differ regarding the all-complication (30% vs. 13%), bleeding complication (0% vs. 5%), or treatment failure (15% vs. 3%) rates. However, the rate of surgical site infection/incision healing problems (25% vs. 3%) and the re-operation rate (20% vs. 3%) were significantly higher in the simultaneous operation group. CONCLUSION Patients undergoing simultaneous cranioplasty/shunt implantation may be at a higher risk of infectious complications than those undergoing staged operations.
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Affiliation(s)
- Xiao-Feng Yang
- a Department of Neurosurgery , First Affiliated Hospital, College of Medicine, Zhejiang University , Hangzhou City , China
| | - Hao Wang
- a Department of Neurosurgery , First Affiliated Hospital, College of Medicine, Zhejiang University , Hangzhou City , China
| | - Liang Wen
- a Department of Neurosurgery , First Affiliated Hospital, College of Medicine, Zhejiang University , Hangzhou City , China
| | - Xin Huang
- a Department of Neurosurgery , First Affiliated Hospital, College of Medicine, Zhejiang University , Hangzhou City , China
| | - Gu Li
- a Department of Neurosurgery , First Affiliated Hospital, College of Medicine, Zhejiang University , Hangzhou City , China
| | - Jiang-Biao Gong
- a Department of Neurosurgery , First Affiliated Hospital, College of Medicine, Zhejiang University , Hangzhou City , China
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Jalan D, Saini N, Zaidi M, Pallottie A, Elkabes S, Heary RF. Effects of early surgical decompression on functional and histological outcomes after severe experimental thoracic spinal cord injury. J Neurosurg Spine 2017; 26:62-75. [DOI: 10.3171/2016.6.spine16343] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE
In acute traumatic brain injury, decompressive craniectomy is a common treatment that involves the removal of bone from the cranium to relieve intracranial pressure. The present study investigated whether neurological function following a severe spinal cord injury improves after utilizing either a durotomy to decompress the intradural space and/or a duraplasty to maintain proper flow of cerebrospinal fluid.
METHODS
Sixty-four adult female rats (n = 64) were randomly assigned to receive either a 3- or 5-level decompressive laminectomy (Groups A and B), laminectomy + durotomy (Groups C and D), or laminectomy + duraplasty with graft (Group E and F) at 24 hours following a severe thoracic contusion injury (200 kilodynes). Duraplasty involved the use of DuraSeal, a hydrogel dural sealant. Uninjured and injured control groups were included (Groups G, H). Hindlimb locomotor function was assessed by open field locomotor testing (BBB) and CatWalk gait analysis at 35 days postinjury. Bladder function was analyzed and bladder wall thickness was assessed histologically. At 35 days postinjury, mechanical and thermal allodynia were assessed by the Von Frey hair filament and hotplate paw withdrawal tests, respectively. Thereafter, the spinal cords were dissected, examined for gross anomalies at the injury site, and harvested for histological analyses to assess lesion volumes and white matter sparing. ANOVA was used for statistical analyses.
RESULTS
There was no significant improvement in motor function recovery in any treatment groups compared with injured controls. CatWalk gait analysis indicated a significant decrease in interlimb coordination in Groups B, C, and D (p < 0.05) and swing speed in Groups A, B, and D. Increased mechanical pain sensitivity was observed in Groups A, C, and F (p < 0.05). Rats in Group C also developed thermal pain hypersensitivity. Examination of spinal cords demonstrated increased lesion volumes in Groups C and F and increased white matter sparing in Group E (p < 0.05). The return of bladder automaticity was similar in all groups. Examination of the injury site during tissue harvest revealed that, in some instances, expansion of the hydrogel dural sealant caused compression of the spinal cord.
CONCLUSIONS
Surgical decompression provided no benefit in terms of neurological improvement in the setting of a severe thoracic spinal cord contusion injury in rats at 24 hours postinjury. Decompressive laminectomy and durotomy did not improve motor function recovery, and rats in both of these treatment modalities developed neuropathic pain. Performing a durotomy also led to increased lesion volumes. Placement of DuraSeal was shown to cause compression in some rats in the duraplasty treatment groups. Decompressive duraplasty of 3 levels does not affect functional outcomes after injury but did increase white matter sparing. Decompressive duraplasty of 5 levels led to neuropathic pain development and increased lesion volumes. Further comparison of dural repair techniques is necessary.
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Affiliation(s)
- Devesh Jalan
- 1Department of Neurological Surgery, Rutgers, The State University of New Jersey–New Jersey Medical School; and
| | - Neginder Saini
- 1Department of Neurological Surgery, Rutgers, The State University of New Jersey–New Jersey Medical School; and
| | - Mohammad Zaidi
- 1Department of Neurological Surgery, Rutgers, The State University of New Jersey–New Jersey Medical School; and
| | - Alexandra Pallottie
- 2Graduate School of Biomedical Sciences, Rutgers, The State University of New Jersey, Newark, New Jersey
| | - Stella Elkabes
- 1Department of Neurological Surgery, Rutgers, The State University of New Jersey–New Jersey Medical School; and
| | - Robert F. Heary
- 1Department of Neurological Surgery, Rutgers, The State University of New Jersey–New Jersey Medical School; and
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Yu SH, Kim BC, Choi JY, Lee JI, Cho WH, Choi HJ. Addition of Resection of Temporal Muscle and Fascia in Decompressive Craniectomy in the Treatment of Traumatic Brain Injury. Korean J Neurotrauma 2016; 12:84-88. [PMID: 27857913 PMCID: PMC5110924 DOI: 10.13004/kjnt.2016.12.2.84] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 07/31/2016] [Accepted: 09/13/2016] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVE Decompressive craniectomy (DC) is a widely used surgical procedure for control of severely increased intracranial pressure in various conditions. The goal of this study is to evaluate the effectiveness of the addition of resection of temporalis muscle and fascia in DC particularly in the treatment of traumatic brain injury. METHODS Twenty patients underwent temporalis muscle and fascia resection in addition to conventional DC and duroplasty due to massive brain swelling in a single tertiary hospital from 2013 to 2015 were enrolled. Twenty other patients who received the standard techniques by other neurosurgeons in the same period were gathered for the control group. Postoperative computed tomography (CT) as well as functional outcome in both groups were analyzed retrospectively. RESULTS CT volumetry showed a significant increase of 85.19 mL (p<0.001) of extracranial herniation volume in the research group compared with the control group. Using modified Rankin Scale and Glasgow Outcome Scale, there was no statistically significant difference in functional outcome between the two groups. CONCLUSION Although preliminary, the procedure appears to show a meaningful increase in extracranial herniation volume with minimal masticatory and cosmetic impairment.
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Affiliation(s)
- Seung Han Yu
- Department of Neurosurgery and Medical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Byung Chul Kim
- Department of Neurosurgery and Medical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Jae Young Choi
- Department of Neurosurgery and Medical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Jae Il Lee
- Department of Neurosurgery and Medical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Won Ho Cho
- Department of Neurosurgery and Medical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Hyuk Jin Choi
- Department of Neurosurgery and Medical Research Institute, Pusan National University Hospital, Busan, Korea
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Grindlinger GA, Skavdahl DH, Ecker RD, Sanborn MR. Decompressive craniectomy for severe traumatic brain injury: clinical study, literature review and meta-analysis. SPRINGERPLUS 2016; 5:1605. [PMID: 27652178 PMCID: PMC5028365 DOI: 10.1186/s40064-016-3251-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 09/08/2016] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To examine the clinical and neurological outcome of patients who sustained a severe non-penetrating traumatic brain injury (TBI) and underwent unilateral decompressive craniectomy (DC) for refractory intracranial hypertension. DESIGN Single center, retrospective, observational. SETTING Level I Trauma Center in Portland, Maine. PATIENTS 31 patients aged 16-72 of either sex who sustained a severe, non-penetrating TBI and underwent a unilateral DC for evacuation of parenchymal or extra-axial hematoma or for failure of medical therapy to control intracranial pressure (ICP). INTERVENTIONS Review of the electronic medical record of patients undergoing DC for severe TBI and assessment of extended Glasgow Outcome Score (e-GOS) at 6-months following DC. MEASUREMENTS AND MAIN RESULTS The mean age was 39.3y ± 14.5. The initial GCS was 5.8 ± 3.2, and the ISS was 29.7 ± 6.3. Twenty-two patients underwent DC within the first 24 h, two within the next 24 h and seven between the 3rd and 7th day post injury. The pre-DC ICP was 30.7 ± 10.3 and the ICP was 12.1 ± 6.2 post-DC. Cranioplasty was performed in all surviving patients 1-4 months post-DC. Of the 29 survivors following DC, the e-GOS was 8 in seven patients, and 7 in ten patients. The e-GOS was 5-6 in 6 others. Of the 6 survivors with poor outcomes (e-GOS = 2-4), five were the initial patients in the series. CONCLUSIONS In patients with intractable cerebral hypertension following TBI, unilateral DC in concert with practice guideline directed brain resuscitation is associated with good functional outcome and acceptable-mortality.
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Affiliation(s)
- Gene A. Grindlinger
- Maine Medical Center, 887 Congress Street, Suite 210, Portland, ME 04102 USA
- Tufts University School of Medicine, Boston, MA USA
| | - David H. Skavdahl
- Surgical Residency Program, Maine Medical Center, Portland, ME USA
- Tufts University School of Medicine, Boston, MA USA
| | - Robert D. Ecker
- Tufts University School of Medicine, Boston, MA USA
- Department of Neurosurgery, Maine Medical Center, Portland, ME USA
| | - Matthew R. Sanborn
- Tufts University School of Medicine, Boston, MA USA
- Department of Neurosurgery, Maine Medical Center, Portland, ME USA
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van Smaalen TC, Mestrom MGAM, Kox JJHFM, Winkens B, van Heurn LWE. Capsulotomy of Ischemically Damaged Donor Kidneys: A Pig Study. Eur Surg Res 2016; 57:89-99. [PMID: 27160678 DOI: 10.1159/000445432] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 03/14/2016] [Indexed: 11/19/2022]
Abstract
BACKGROUND Ischemia-reperfusion injury of donor kidneys may worsen transplant outcome. Kidneys with severe injury, such as kidneys of donors after circulatory death, develop edema, which may lead to renal compartment syndrome with reduced tissue perfusion. OBJECTIVE We studied the effect of capsulotomy during hypothermic machine perfusion (HMP) of ischemically damaged porcine kidneys. METHODS Eight pairs of kidneys from slaughterhouse pigs were assigned to two groups (20 and 45 min of warm ischemia). After 21 h of HMP, capsulotomy was performed, and perfusion was continued for 2 h. During perfusion, machine flow (Q), renal resistance (RR), renovascular circulating volume (RCV), intraparenchymal pressure (IPP) and weight were recorded. Parenchymal injury was examined with methylene blue infusion. RESULTS Mean Q and RCV increased directly after capsulotomy [percentage increase (95% confidence interval): x0394;Q = 32% (17, 47), p = 0.001, and x0394;RCV = 19% (3, 35), p = 0.023]. Mean RR decreased [x0394;RR = -23% (-31, -15), p < 0.001]. Subanalysis comparing both warm ischemia groups showed no significantly different effect of capsulotomy between groups. There was no methylene blue leakage after capsulotomy in any kidney. CONCLUSIONS Renovascular perfusion can be improved with capsulotomy during HMP, without damaging the renal parenchyma. Follow-up studies need to determine which donor kidneys may benefit from capsulotomy.
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Affiliation(s)
- Tim C van Smaalen
- Department of Surgery, Maastricht University Medical Center, Maastricht University, Maastricht, The Netherlands
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28
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Pia Mater Significantly Contributes to Spinal Cord Intraparenchymal Pressure in a Simulated Model of Edema. Spine (Phila Pa 1976) 2016; 41:E524-9. [PMID: 27128257 DOI: 10.1097/brs.0000000000001306] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN Intraparenchymal pressure (IPP) measurements in an in vitro cadaveric model of CNS edema. OBJECTIVE To assess the contribution of pia mater to IPP and the effect of piotomy. SUMMARY OF BACKGROUND DATA Multicenter randomized control trials have shown that decompression with durotomy/duroplasty significantly decreases intracranial pressure (ICP). There is a paucity of evidence regarding the effectiveness of decompression of the spinal cord by piotomy. METHODS The supratentorial brain and spinal cord were removed from six fresh cadavers. Dura and arachnoid mater were removed. ICP monitors were placed bilaterally in the frontal and parietal lobes, and centrally in the cervical and thoracic spinal cord. To simulate edema, specimens were submerged in hypotonic solution. IPP was recorded for 5 days. A complete dorsal midline piotomy was performed on the spinal cord and resulting IPP was recorded. RESULTS Brain and spinal cord both increased in weight. IPP significantly increased in both brain and spinal cord. The IPP increase within the spinal cord was substantially greater (averages: all four lobes = 4.0 mm Hg; cervical = 73.7 mm Hg; thoracic = 49.3 mm Hg). After piotomy, cervical and thoracic spinal cord IPP decreased immediately (avg. postpiotomy IPP = 9.7 and 10.3, respectively). CONCLUSION There were differential effects on brain and spinal cord IPP. Brain IPP increased only slightly, possibly because of the absence of the cranium and dura mater. In contrast, spinal cord IPP increased substantially even in the absence of the laminae, dura, and arachnoid mater. Piotomy immediately and dramatically reduced spinal cord IPP. These data are consistent with the hypothesis that spinal cord IPP is primarily dependent on constraints imposed by the pia mater. Conversely, in the absence of the cranium and dura mater, the sulci may permit the pia-invested brain to better accommodate edema without significant increases in IPP. LEVEL OF EVIDENCE N/A.
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29
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Chen JW, Paff MR, Abrams-Alexandru D, Kaloostian SW. Decreasing the Cerebral Edema Associated with Traumatic Intracerebral Hemorrhages: Use of a Minimally Invasive Technique. ACTA NEUROCHIRURGICA. SUPPLEMENT 2016; 121:279-284. [PMID: 26463961 DOI: 10.1007/978-3-319-18497-5_48] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Traumatic brain injury (TBI) is a major public health problem worldwide that affects all age groups. In the United States alone, there are approximately 50,000 deaths from severe traumatic brain injuries each year. In most studies, about 40 % of severe TBI have associated traumatic intracerebral hemorrhages (tICHs). The surgical treatment of tICH is debated largely because of its invasive nature, particularly in reaching deep tICHs. tICHs have a clear contribution to mass effect and exacerbate cerebral edema and ICP because of the break-down products of hemorrhage. We introduce a modification of the Mi SPACE technique (Minimally Invasive Subcortical Parafascicular Transsulcal Access for Clot Evacuation) that is applicable to tICH. In brief, this technique utilizes a trans-sulcal, stereotactic-guided technique in which a specially designed cannula is used to introduce a 13.5-mm-diameter tube into the epicenter of the tICH. We identified eight tICHs that were treated entirely or in part with the modified Mi SPACE technique during the time period from August 15, 2014 to December 15, 2014. This modified technique was readily deployed safely and efficaciously with significant removal of the tICH as demonstrated by postoperative CT scans. The removal of tICH using this minimally invasive technique may help with the control of ICP and cerebral edema.
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Affiliation(s)
- Jeff W Chen
- Department of Neurological Surgery, The University of California, Irvine, CA, USA.
| | - Michelle R Paff
- Department of Neurological Surgery, The University of California, Irvine, CA, USA
| | | | - Sean W Kaloostian
- Department of Neurological Surgery, The University of California, Irvine, CA, USA
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Phang I, Werndle MC, Saadoun S, Varsos G, Czosnyka M, Zoumprouli A, Papadopoulos MC. Expansion duroplasty improves intraspinal pressure, spinal cord perfusion pressure, and vascular pressure reactivity index in patients with traumatic spinal cord injury: injured spinal cord pressure evaluation study. J Neurotrauma 2015; 32:865-74. [PMID: 25705999 PMCID: PMC4492612 DOI: 10.1089/neu.2014.3668] [Citation(s) in RCA: 115] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
We recently showed that, after traumatic spinal cord injury (TSCI), laminectomy does not improve intraspinal pressure (ISP), spinal cord perfusion pressure (SCPP), or the vascular pressure reactivity index (sPRx) at the injury site sufficiently because of dural compression. This is an open label, prospective trial comparing combined bony and dural decompression versus laminectomy. Twenty-one patients with acute severe TSCI had re-alignment of the fracture and surgical fixation; 11 had laminectomy alone (laminectomy group) and 10 had laminectomy and duroplasty (laminectomy+duroplasty group). Primary outcomes were magnetic resonance imaging evidence of spinal cord decompression (increase in intradural space, cerebrospinal fluid around the injured cord) and spinal cord physiology (ISP, SCPP, sPRx). The laminectomy and laminectomy+duroplasty groups were well matched. Compared with the laminectomy group, the laminectomy+duroplasty group had greater increase in intradural space at the injury site and more effective decompression of the injured cord. In the laminectomy+duroplasty group, ISP was lower, SCPP higher, and sPRx lower, (i.e., improved vascular pressure reactivity), compared with the laminectomy group. Laminectomy+duroplasty caused cerebrospinal fluid leak that settled with lumbar drain in one patient and pseudomeningocele that resolved completely in five patients. We conclude that, after TSCI, laminectomy+duroplasty improves spinal cord radiological and physiological parameters more effectively than laminectomy alone.
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Affiliation(s)
- Isaac Phang
- 1 Academic Neurosurgery Unit, St. George's University of London , United Kingdom
| | - Melissa C Werndle
- 1 Academic Neurosurgery Unit, St. George's University of London , United Kingdom
| | - Samira Saadoun
- 1 Academic Neurosurgery Unit, St. George's University of London , United Kingdom
| | - Georgios Varsos
- 2 Department of Clinical Neurosciences, University of Cambridge , Cambridge, United Kingdom
| | - Marek Czosnyka
- 2 Department of Clinical Neurosciences, University of Cambridge , Cambridge, United Kingdom
| | - Argyro Zoumprouli
- 3 Department of Anaesthesia, St. George's Hospital , London, United Kingdom
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31
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Kurzbuch AR. Does size matter? Decompressive surgery under review. Neurosurg Rev 2015; 38:629-40. [DOI: 10.1007/s10143-015-0626-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2013] [Revised: 09/20/2014] [Accepted: 01/19/2015] [Indexed: 11/24/2022]
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Martin AG, Abdullah JY, Jaafar A, Ghani ARI, Rajion ZA, Abdullah JM. Addition of zygomatic arch resection in decompressive craniectomy. J Clin Neurosci 2015; 22:735-9. [DOI: 10.1016/j.jocn.2014.09.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Accepted: 09/19/2014] [Indexed: 11/25/2022]
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Chen ST, Chang CJ, Su WC, Chang LW, Chu IH, Lin MS. 3-D titanium mesh reconstruction of defective skull after frontal craniectomy in traumatic brain injury. Injury 2015; 46:80-5. [PMID: 25452005 DOI: 10.1016/j.injury.2014.09.019] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Accepted: 09/25/2014] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Decompressive craniectomy (DC) is a treatment strategy used to reduce intracranial pressure in patients with traumatic brain injuries. However, this procedure has a number of shortcomings, such as excessive sinking of the skin flap, which can lead to cerebral compromise and negatively affect the appearance of the patient. The reconstruction of skull defects has been proposed as a means to overcome these disadvantages. Few previous studies have reported the reconstruction of frontal skull defects using titanium mesh. The aim of this study was to provide a comprehensive review of aesthetic and surgical outcomes associated with this procedure and to list the complications encountered during the repair of frontal skull defects using three-dimensional (3-D) titanium mesh. METHODS A retrospective review was conducted using records from seven adult patients (32-60 years of age) who received titanium mesh implants at a university hospital in Taiwan between January 2011 and June 2012. Aesthetic outcomes, the function of cranial nerves V and VII, and complications (hardware extrusions, meningitis, osteomyelitis, brain abscess, and pneumocephalus) were evaluated. RESULTS An algorithm capable of accounting for bifrontal skull defects and median bone ridges was developed to improve computer-assisted design/manufacturing (CAD/CAM) of one-piece 3-D titanium mesh implants, thereby making it possible to repair bifrontal skull defects in a single operation. Following this procedure, aesthetic and functional outcomes were excellent and the implants in all patients appeared stable. However, extended healing times in two of the patients resulted in subclinical infections, which were resolved by administering antibiotics over a period of 2 weeks. No patients suffered trigeminal or facial dysfunction. CONCLUSIONS Our findings support the use of 3-D titanium mesh in frontal skull reconstruction. Few complications were encountered, the contours of the forehead were faithfully rendered, and the cosmetic appearance of patients was excellent. For patients with bifrontal skull defects, the use of one-piece implants in a single operation provides numerous advantages over conventional staged surgeries. This application helps to reduce operating time, which is particularly beneficial for elderly patients and those requiring bifrontal cranioplasties.
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Affiliation(s)
- Shuo-Tsung Chen
- Department of Mathematics, Tunghai University, Taichung, Taiwan
| | - Cheng-Jen Chang
- Department of Plastic Surgery, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan, Taiwan
| | - Wei-Chin Su
- Department of Neurosurgery, Taipei City Hospital, Zhong Xiao Branch, Taipei, Taiwan
| | - Lin-Wan Chang
- Department of Neurosurgery, Taipei City Hospital, Zhong Xiao Branch, Taipei, Taiwan
| | - I-Hsuan Chu
- Department of Neurosurgery, Taipei City Hospital, Zhong Xiao Branch, Taipei, Taiwan
| | - Muh-Shi Lin
- Department of Surgery, Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan; Department of Neurosurgery, Taipei City Hospital, Zhong Xiao Branch, Taipei, Taiwan; Department of Biotechnology and Animal Science, National Ilan University, Ilan, Taiwan.
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Patel N, West M, Wurster J, Tillman C. Pediatric traumatic brain injuries treated with decompressive craniectomy. Surg Neurol Int 2013; 4:128. [PMID: 24232244 PMCID: PMC3815000 DOI: 10.4103/2152-7806.119055] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Accepted: 08/02/2013] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Traumatic brain injury (TBI) occurs in an estimated 80% of all pediatric trauma patients and is the leading cause of death and disability in the pediatric population. Decompressive craniectomy is a procedure used to decrease intracranial pressure by allowing the brain room to swell and therefore increase cerebral perfusion to the brain. METHODS This is a retrospective study done at St. Mary's Medical Center/Palm Beach Children's Hospital encompassing a 3 year 7 month period. All the pediatric patients who sustained a TBI and who were treated with a decompressive craniectomy were included. The patients' outcomes were monitored and scored according to the Rancho Los Amigos Score at the time of discharge from the hospital and 6 months postdischarge. RESULTS A total of 379 pediatric patients with a diagnosis of TBI were admitted during this time. All these patients were treated according to the severity of their injury. A total of 49 pediatric patients required neurosurgical intervention and 7 of these patients met the criteria for a decompressive craniectomy. All seven patients returned home with favorable outcomes. CONCLUSION This study supports the current literature that decompressive craniectomy is no longer an intervention used as a last resort but an effective first line treatment to be considered.
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Affiliation(s)
- Neil Patel
- Department of Trauma, St. Mary's Medical Center/Palm Beach Children's Hospital, Fl, 33409, USA
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Jasielski P, Głowacki M, Czernicki Z. Decompressive craniectomy in trauma: when to perform, what can be achieved. ACTA NEUROCHIRURGICA. SUPPLEMENT 2013; 118:125-8. [PMID: 23564117 DOI: 10.1007/978-3-7091-1434-6_22] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
SUBJECT The goal of the study was to evaluate the effectiveness of the decompressive craniectomy (DC) concerning its various parameters. MATERIAL AND METHODS Forty-five patients were studied (6 female, 39 male, mean age 53 years). All patients were treated because of severe traumatic brain injury. CT was performed before surgery and on the 1st to 3rd days postoperatively, and was evaluated using specific software. Parameters such as diameter of DC, volume of the additional intradural space obtained, and the shift of the midline were measured. RESULTS In the group of patients treated with unilateral DC, the 11-cm craniectomy resulted in an average of 69 mL of additional space. The best score on the Extended Glasgow Outcome Scale (GOS-E) after DC was in patients younger than 35 years old. CONCLUSION In our opinion DC is a suitable method of treatment for patients after severe traumatic brain injury. The best results were achieved in a group of patients aged <50 years, in particular <35 years old. DC gives extra additional space for damaged and edematous brain. DC should be performed early enough and should be large enough. Parameters of the DC obtained positive results with regard to patient status, but there are also other factors such as age and initial Glasgow Coma Scale (GCS) score, which can affect outcome.
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Affiliation(s)
- Piotr Jasielski
- Department of Neurosurgery, Mossakowski's Medical Research Centre, Warsaw, Poland.
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Oladunjoye AO, Schrot RJ, Zwienenberg-Lee M, Muizelaar JP, Shahlaie K. Decompressive craniectomy using gelatin film and future bone flap replacement. J Neurosurg 2013; 118:776-82. [DOI: 10.3171/2013.1.jns121475] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Object
Decompressive craniectomy plays an important role in the management of patients with traumatic brain injury (TBI) and stroke. Risks of decompressive craniectomy include those associated with cranioplasty, and may be related to adhesions that develop between the brain surface and overlying scalp and temporalis muscle. The authors report their institutional experience using a multilayered technique (collagen and gelatin film barriers) to facilitate safe and rapid cranioplasty following decompressive craniectomy.
Methods
The authors conducted a retrospective chart review of 62 consecutive adult and pediatric patients who underwent decompressive craniectomy and subsequent cranioplasty between December 2007 and January 2011. Diagnoses included TBI, ischemic stroke, intraparenchymal hemorrhage, or subarachnoid hemorrhage. A detailed review of clinical charts was performed, including anesthesia records and radiographic study results.
Results
The majority of patients underwent unilateral hemicraniectomy (n = 56), with indications for surgery including midline shift (n = 37) or elevated intracranial pressure (n = 25). Multilayered decompressive craniectomy was safe and easy to perform, and was associated with a low complication rate, minimal operative time, and limited blood loss.
Conclusions
Decompressive craniectomy repair using an absorbable gelatin film barrier facilitates subsequent cranioplasty by preventing adhesions between intracranial contents and the overlying galea aponeurotica and temporalis muscle fascia. This technique makes cranioplasty dissection faster and potentially safer, which may improve clinical outcomes. The indications for gelatin film should be expanded to include placement in the epidural space after craniectomy.
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Santana-Cabrera L, Pérez-Acosta G, Rodríguez-Escot C, Lorenzo-Torrent R, Sánchez-Palacios M. Complications of post-injury decompressive craniectomy. Int J Crit Illn Inj Sci 2012. [PMID: 23181215 PMCID: PMC3500013 DOI: 10.4103/2229-5151.100937] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Decompressive craniectomy (DC) is a useful technique for the treatment of traumatic brain injuries (TBI) with intracranial hypertension (ICHT) resistant to medical treatment, increasing survival, although its role in the functional prognosis of patients is not defined. It is also a technique that is not without complications, and may increase the patient's morbidity and mortality. We report two cases of patients with TBI who required DC and suffered complications from the technique
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Affiliation(s)
- Luciano Santana-Cabrera
- Department of Intensive Care Unit, University Hospital Insular in Gran Canaria, Las Palmas of Gran Canaria, Spain
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Glover LE, Tajiri N, Lau T, Kaneko Y, van Loveren H, Borlongan CV. Immediate, but not delayed, microsurgical skull reconstruction exacerbates brain damage in experimental traumatic brain injury model. PLoS One 2012; 7:e33646. [PMID: 22438975 PMCID: PMC3306278 DOI: 10.1371/journal.pone.0033646] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Accepted: 02/14/2012] [Indexed: 11/19/2022] Open
Abstract
Moderate to severe traumatic brain injury (TBI) often results in malformations to the skull. Aesthetic surgical maneuvers may offer normalized skull structure, but inconsistent surgical closure of the skull area accompanies TBI. We examined whether wound closure by replacement of skull flap and bone wax would allow aesthetic reconstruction of the TBI-induced skull damage without causing any detrimental effects to the cortical tissue. Adult male Sprague-Dawley rats were subjected to TBI using the controlled cortical impact (CCI) injury model. Immediately after the TBI surgery, animals were randomly assigned to skull flap replacement with or without bone wax or no bone reconstruction, then were euthanized at five days post-TBI for pathological analyses. The skull reconstruction provided normalized gross bone architecture, but 2,3,5-triphenyltetrazolium chloride and hematoxylin and eosin staining results revealed larger cortical damage in these animals compared to those that underwent no surgical maneuver at all. Brain swelling accompanied TBI, especially the severe model, that could have relieved the intracranial pressure in those animals with no skull reconstruction. In contrast, the immediate skull reconstruction produced an upregulation of the edema marker aquaporin-4 staining, which likely prevented the therapeutic benefits of brain swelling and resulted in larger cortical infarcts. Interestingly, TBI animals introduced to a delay in skull reconstruction (i.e., 2 days post-TBI) showed significantly reduced edema and infarcts compared to those exposed to immediate skull reconstruction. That immediate, but not delayed, skull reconstruction may exacerbate TBI-induced cortical tissue damage warrants a careful consideration of aesthetic repair of the skull in TBI.
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Affiliation(s)
| | | | | | | | | | - Cesario V. Borlongan
- Department of Neurosurgery and Brain Repair, University of South Florida College of Medicine, Tampa, Florida, United States of America
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Abstract
Decompressive craniectomy (DC) is the surgical management removing part of the skull vault over a swollen brain used to treat elevated intracranial pressure that is unresponsive to maximal medical therapy. The commonest indication for DC is traumatic brain injury (TBI) or middle cerebral artery (MCA) infarction, though DC has been reported to have been used for treatment of aneurysmal subarachnoid haemorrhage and venous infarction. Despite an increasing number of reports supportive of DC, the controversy over the suitability of the procedure and criteria for patient selection remains unresolved. Although the majority of published studies are retrospective, the recent publication of several randomised prospective studies prompts a re-evaluation of the use of DC. We review the literature concerning the pathophysiology, indication, surgical techniques and timing, complications and long-term effects of DC (including reversal with cranioplasty), in order to rationalise its use. We conclude that at the time of this review, though we cannot support the routine use of DC in TBI or MCA stroke, there is evidence that early and aggressive use of DC in TBI patients with intracranial haematomas or younger malignant MCA stroke patients may improve outcome. Though the results of the DECRA trial suggest that primary DC may worsen outcome, the decision to perform DC after diffuse TBI is still individualised. We await the results of the RESCUEicp trial to ascertain whether an evidence-based protocol for its use can be agreed in the future.
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Affiliation(s)
| | - A Tarnaris
- Department of Neurosurgery, Queen Elizabeth Hospital Birmingham, UK
| | - J Wasserberg
- Department of Neurosurgery, Queen Elizabeth Hospital Birmingham, UK
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