The Effect of Early Beta-Blockade with Esmolol on Therapy Intensity Level in Adults with Severe Traumatic Brain Injury.

Following severe traumatic brain injury (TBI), elevated catecholamine levels are associated with worsened secondary brain injury and poorer clinical outcomes. The mechanisms are uncertain but may include cerebral ischemia and blood-brain barrier disruption, with consequent cerebral edema manifesting as intracranial hypertension. Early beta-blockade (EBB) may mitigate these detrimental hyperadrenergic effects. Therapy Intensity Level (TIL) is a validated score that quantifies intracranial pressure (ICP)-lowering interventions, with higher TIL being a surrogate for more severe intracranial hypertension. In this post hoc secondary analysis of a dose-finding study of EBB with esmolol in adults with TBI, we compared summary TIL (TIL24) and domain TIL between patients who received esmolol and those who did not. The primary outcome was TIL24 for each 24-h epoch of the esmolol intervention period of 96 h. Baseline characteristics were comparable in the esmolol (E) and non-esmolol (NE) groups. Mean TIL24 was similar in both groups up to 48 h but then diverged. The mean (standard deviation) TIL24 score between 48 and 72 h was 4.8 (1.5) in group E versus 6.6 (5.4) in group NE and at 72-96 h 4.5 (1.5) in group E versus 7.0 (4.0) in group NE. TIL domain scores were lower in group E for hyperosmolar therapy, targeted temperature management, and surgical management (cerebrospinal fluid drainage, evacuation, or decompressive craniectomy). The association between esmolol use after TBI and the reduction in ICP-directed interventions is consistent with an effect of beta-blockade on reduction of cerebral edema. Further research is necessary to determine causality and mechanism.

Research priority setting in plastic and reconstructive surgery: A systematic review.

BACKGROUND: The health research agenda has historically been led by researchers; however, their priorities may not necessarily align with those of patients, caregivers and clinicians. Research priority setting initiatives identify and prioritise topics which lack evidence. This is particularly important in plastic surgery, a speciality lacking high-quality evidence to definitively answer many common clinical questions. Research priorities direct research activity and funding, so their selection process must be representative and transparent. This review appraised all priority setting initiatives in plastic surgery using the reporting guideline for priority setting of health research (REPRISE). METHODS: OVID Medline, EMBASE, CINAHL and the James Lind Alliance (JLA) repository were searched (inception - 11/06/21) using search terms for 'research priority setting' and 'plastic and reconstructive surgery'. Dual-author screening and data extraction were conducted, according to PRISMA. RESULTS: Of 3899 de-duplicated citations, 17 were included. Most studies were conducted in national (14/17), high-income (16/17) settings. More priority setting initiatives focussed on burns (6/17) and hand surgery (4/17) than other subspecialties. The JLA (5/17) and qualitative (5/17) approaches were most used for prioritisation, followed by Delphi techniques (3/17), other surveys (3/17) and mixed methods (1/17). A minority included patient (8/17) or multi-disciplinary (8/17) stakeholders. Few reported strategies for implementing research priorities (6/17) or measuring their impact (2/17). CONCLUSIONS: Stakeholders from lower-income countries are underrepresented in priority setting initiatives for plastic surgery, despite the global burden of disease. Future studies should recruit more patient and multidisciplinary stakeholders, to achieve meaningful consensus. Clear implementation strategies are needed to maximise impact.

Radiotherapy biobanking: current landscape, opportunities, challenges, and future aspirations.

Half of all cancer patients receive radiotherapy, which makes a substantial contribution to their long-term disease control/cure. There are significant inter-patient differences in response, both in terms of efficacy and toxicity (frequently delayed onset) which are difficult to predict. With the introduction of technological improvements (e.g. stereotactic body radiotherapy and proton therapy) and development of combination therapies (e.g. radiotherapy and immune checkpoint inhibition), predictive biomarkers are needed even more. Whilst genomic studies have contributed significantly to predictions of response to anticancer therapy, there is no doubt that more information can be gathered from patient tissue samples. Patients are willing to donate their tissues to biobanks and wish them to be used as widely as possible for high-quality research. We report here a survey of the current practices in the UK from several groups collecting material from patients in radiotherapy trials and have identified barriers to collecting and sharing data and samples. We believe the current situation represents a significant missed opportunity to improve the personalisation of radiotherapy. We propose a greater involvement of patients and/or their advocates, a standardisation of the patient information leaflet, consent form content and data set, with easy linkage to clinical data, which would facilitate widespread sample and data discovery and availability to other researchers. The greater sharing of data and samples, nationally and internationally, would facilitate robust multicentre studies and avoid duplication of effort.

Management and Outcomes of Traumatic Pediatric Spinal Cord Injuries in Low- and Middle-Income Countries: A Scoping Review.

BACKGROUND: Traumatic spinal cord injury (TSCI) is a subset of neurotrauma, which is a significant contributor to global trauma mortality and morbidity in children. The management and outcomes of pediatric TSCI in low- and middle-income countries (LMICs) is unknown. We conducted a scoping review to characterize the methods of management and outcomes of TSCI in LMICs. METHODS: MEDLINE, Embase, and Global Index Medicus were searched from database inception to February 15, 2021. Studies reporting management or outcomes of pediatric TSCI in LMICs were included. Pooled statistics were calculated using measures of central tendency and spread. RESULTS: A total of 1171 studies were identified, of which 5 were included. A total of 212 patients were included in our review with age of participants ranging from 2.5 to 18 years (mean, 15.4 years). Most patients were male (n = 162; 76.4%). The commonest cited cause of injury were falls (n = 104/212; 49.1%). The most common level of injury was cervical (n = 83; 39.2%). Most patients underwent surgery (n = 134/212; 63.2%). The extent of injury was quantified and classified using the American Spinal Injury Association chart in only 1 study. Long-term management data were not present in any of the included studies. CONCLUSIONS: There is a scarcity of studies reporting the management and outcome of pediatric TSCI in LMICs. The paucity of studies in this domain provides insufficient data to be compared, reducing the ability to draw a strong conclusion. This situation hinders the development of guidelines to inform best practice.

A systematic review of robot-assisted cholecystectomy to examine the quality of reporting in relation to the IDEAL recommendations: systematic review.

INTRODUCTION: Robotic cholecystectomy (RC) is a recent innovation in minimally invasive gallbladder surgery. The IDEAL (idea, development, exploration, assessment, long-term study) framework aims to provide a safe method for evaluating innovative procedures. This study aimed to understand how RC was introduced, in accordance with IDEAL guidelines. METHODS: Systematic searches were used to identify studies reporting RC. Eligible studies were classified according to IDEAL stage and data were collected on general study characteristics, patient selection, governance procedures, surgeon/centre expertise, and outcome reporting. RESULTS: Of 1425 abstracts screened, 90 studies were included (5 case reports, 38 case series, 44 non-randomized comparative studies, and 3 randomized clinical trials). Sixty-four were single-centre and 15 were prospective. No authors described their work in the context of IDEAL. One study was classified as IDEAL stage 1, 43 as IDEAL 2a, 43 as IDEAL 2b, and three as IDEAL 3. Sixty-four and 51 provided inclusion and exclusion criteria respectively. Ethical approval was reported in 51 and conflicts of interest in 34. Only 21 reported provision of training for surgeons in RC. A total of 864 outcomes were reported; 198 were used in only one study. Only 30 reported a follow-up interval which, in 13, was 1 month or less. CONCLUSION: The IDEAL framework was not followed during the adoption of RC. Few studies were conducted within a research setting, many were retrospective, and outcomes were heterogeneous. There is a need to implement appropriate tools to facilitate the incremental evaluation and reporting of surgical innovation.

Virtual Connections: Improving Global Neurosurgery Through Immersive Technologies.

The field of neurosurgery has always been propelled by the adoption of novel technologies to improve practice. Although advancements have occurred in the diagnosis, treatment, and long-term outcomes of patients, these have not translated to global patient benefit. Up to five million people each year do not have access to safe and affordable neurosurgical interventions, and those in low- and middle-income countries (LMICs) are disproportionately affected. Current approaches to increase neurosurgical capacity are unlikely to meet the UN Sustainable Development Goals target by 2030, and many of the most successful programs have been disrupted by the travel restrictions of the COVID-19 pandemic. There is therefore a pressing need for creative virtual solutions. An area of growing relevance is the use of immersive technologies: virtual reality (VR) and augmented reality (AR). AR allows additional information to be superimposed onto the surgeon's visual field, thus enhancing intra-operative visualization. This can be used for remote tele-proctoring, whereby an experienced surgeon can virtually assist with a procedure regardless of geographical location. Expert guidance can therefore be given to both neurosurgical trainees and non-neurosurgical practitioners, further facilitating the growing practice of neurosurgical task-shifting in LMICs. VR simulation is another useful tool in remote neurosurgical training, with the potential to reduce the learning curve of complex procedures whilst conserving supplies in low-resource settings. The adoption of immersive technologies into practice is therefore a promising approach for achieving global neurosurgical equity, whilst adapting to the long-term disruptions of the pandemic.

A caroticocavernous fistula without vascular injury following endoscopic transsphenoidal excision of a tuberculum sellae meningioma-A case report.

Caroticocavernous fistulae can occur following transsphenoidal surgery even without evidence of carotid artery injury. A role of vascularized flap reconstruction may be contributory.

Continental Survey of Access to Diagnostic Tools and Endovascular Management of Aneurysmal Subarachnoid Hemorrhage in Africa.

Rationale: Interventional neurovascular procedures are effective in lowering the burden of mortality and complications resulting from aneurysmal subarachnoid hemorrhage (aSAH). Despite the wide uptake of interventional neurovascular procedures in high-income countries, access to care in low- and middle-income countries remains limited, and little is known about accessibility in Africa. In this survey, we decided to assess access to diagnostic tools and treatment of aSAH in Africa. Methodology: A Google form e-survey was distributed to African neurosurgery centers accepting responses from January 4th to March 21st 2021. Data on accessibility to diagnostic tools, treatment methodologies, and interventional neuroradiology personnel in African centers were collected. Ninety five percent confidence intervals were computed for each variable. Results: Data was received from 36 neurosurgical centers in 16 African countries (16/54, 30%). Most centers were public institutions. Ninety four percent of the centers had the necessary resources for a lumbar puncture (LP) and a laboratory for the diagnosis of aSAH. Most centers had at least one computed tomography (CT) scanner, 81% of the centers had access to CT angiography and some had access to conventional angiography. Forty seven percent of the centers could obtain a head CT within 2 h of presentation in an emergency. Sixty one percent of centers provided clipping of intracranial aneurysms whilst only 22% of centers could perform the endovascular treatment. Sixty four percent of centers did not have an endovascular specialist. Conclusion: This survey highlights health inequity in access to endovascular treatment for aSAH. Lack of diagnostic tools to identify an aneurysm and a shortfall of qualified endovascular specialists are prime reasons for this. Our findings can inform health system strengthening policies including the acquisition of equipment and capacity building in Africa.

Neurosurgical Equipment Donations: A Qualitative Study.

INTRODUCTION: Neurosurgical equipment donation from high-income countries (HICs) to low-and-middle income countries (LMICs) exists. However, there is currently no published literature on whether there is a need for neurosurgical equipment donations or how to design equipment donation programmes that meet the needs of LMIC neurosurgeons. The primary aims of this study were to explore: (1) the need for the donation of neurosurgical equipment from the UK and Ireland to LMICs within the African continent, and (2) the ways through which neurosurgical equipment donations could meet the needs of LMIC neurosurgeons. METHODS: This was a qualitative study using semi-structured, one-on-one, audio-recorded interviews. Purposive sampling was used to recruit and interview consultants or attending neurosurgeons from Ireland, the UK and LMICs in Africa in a continuous process until data saturation. Interviews were conducted by members of the Association of Future African Neurosurgeons during March 2021. Qualitative analysis used a thematic approach using open and axial coding. RESULTS: Five HIC and 3 LMIC neurosurgeons were interviewed. Five overarching themes were identified: (1) inequality of access to neurosurgical equipment, (2) identifying specific neurosurgical equipment needs, (3) importance of organisations, (4) partnerships between LMIC and HIC centres, and (5) donations are insufficient in isolation. CONCLUSION: There is a need for greater access to neurosurgical equipment in LMICs. It is unclear if neurosurgical equipment donations are the optimal solution to this issue. Other solutions that are not linked to dependency need to be explored and executed. Collaborative relationships between LMICs and HICs better ensures that neurosurgical equipment donations meet the needs of the recipients. These relationships may be best created within an organisation framework that has the logistical capabilities of coordinating international equipment donation and providing a quality control measure.

Survey Fatigue During the COVID-19 Pandemic: An Analysis of Neurosurgery Survey Response Rates.

Background: The COVID-19 pandemic has caused a surge in research activity while restricting data collection methods, leading to a rise in survey-based studies. Anecdotal evidence suggests this increase in neurosurgical survey dissemination has led to a phenomenon of survey fatigue, characterized by decreased response rates and reducing the quality of data. This paper aims to analyze the effect of COVID-19 on neurosurgery surveys and their response rates, and suggest strategies for improving survey data collection. Methods: A search was conducted on March 20, 2021, on Medline and EMBASE. This included the terms "neurosurgery," "cranial surgery," "spine surgery," and "survey" and identified surveys written in English, on a neurosurgical topic, distributed to neurosurgeons, trainees, and medical students. Results were screened by two authors according to these inclusion criteria, and included articles were used for data extraction, univariable, and bivariable analysis with Fisher's exact-test, Wilcoxon rank-sum test, and Spearman's correlation. Results: We included 255 articles in our analysis, 32.3% of which were published during the COVID-19 pandemic. Surveys had an average of 25.6 (95% CI = 22.5-28.8) questions and were mostly multiple choice (78.8%). They were disseminated primarily by email (75.3%, 95% CI = 70.0-80.6%) and there was a significant increase in dissemination via social media during the pandemic (OR = 3.50, 95% CI = 1.30-12.0). COVID-19 surveys were distributed to more geographical regions than pre-pandemic surveys (2.1 vs. 1.5, P = 0.01) and had higher total responses (247.0 vs. 206.4, P = 0.01), but lower response rates (34.5 vs. 51.0%, P < 0.001) than pre-COVID-19 surveys. Conclusion: The rise in neurosurgical survey distribution during the COVID-19 pandemic has led to survey fatigue, reduced response rates, and data collection quality. We advocate for population targeting to avoid over-researching, collaboration between research teams to minimize duplicate surveys, and communication with respondents to convey study importance, and we suggest further strategies to improve response rates in neurosurgery survey data collection.

Management and Outcomes of Paediatric Intracranial Suppurations in Low- and Middle-Income Countries: A Scoping Review.

Introduction: Intracranial suppurations account for a significant proportion of intracranial masses in low- and middle-income countries (LMICs), particularly among children. The development of better imaging equipment, antibiotics, and surgical techniques has enabled significant progress in detecting and treating intracranial abscesses. However, it is unclear whether these advances are accessible and utilised by LMICs. In this review, we aimed to describe the landscape of paediatric intracranial suppurations in LMICs. Methods: This scoping review was conducted using the Arksey and O'Malley framework. MEDLINE, EMBASE, WHO Global Index Medicus, AJOL and Google scholar were searched for relevant articles from database inception to January 18th, 2021. Publications in English and French were included. Results: Of the 1,011 records identified, 75 were included. The studies, on average, included 18.8 (95% CI = 8.4-29.1) children (mean age: 8.2 years). Most children were male (62.2%, 95% CI = 28.7-95.7%). Intracranial suppurations were most commonly (46.5%) located in the supratentorial brain parenchyma. The most prevalent causative mechanism was otitis (37.4%) with streptococcus species being the most common causative organism (19.4%). CT scan (71.2%) was most commonly used as a diagnostic tool and antibiotics were given to all patients. Symptoms resolved in 23.7% and improved in 15.3% of patients. The morbidity rate was 6.9%, 18.8% of patients were readmitted, and the mortality rate was 11.0%. Conclusion: Most intracranial suppurations were complications of preventable infections and despite MRI being the gold standard for detecting intracranial suppurations, CT scans were mostly used in LMICs. These differences are likely a consequence of inequities in healthcare and have resulted in a high mortality rate in LMICs.