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A. Džurlić, B. Rovčanin, Džan Amed Jesenković, Azra Grebo, Lamija Terzić, A. Ahmetspahić, E. Hajdarpašić, Mirza Pojskić et al.

Introduction Spinal tumor surgery mandates complete removal with preserved neurological function and stability. Total Laminectomy (TL) provides access but risks complications (pain, deformity) from extensive tissue removal. The safer, tissue-sparing Unilateral Hemilaminectomy (UHL) is limited by concerns about complete resection via its narrower corridor. Research question This study was comparing the clinical and radiological characteristic between unilateral TL and total laminectomy UHL and they clinical outcomes and complications. Material and methods This was a retrospective cohort study comparing UHL and TL for intradural/extradural spinal tumors. We analyzed consecutive patients operated between January 2018 and December 2024, excluding those with confounding factors. Surgical approach was selected based on tumor location and intraoperative needs. Data on patient demographics, pre/postoperative neurological status, surgical parameters, and tumor characteristics were collected. Primary outcomes were postoperative neurological status and complications rate. Statistical analysis compared variables between groups using appropriate tests, with significance at p = 0.05. Results Baseline characteristics were similar between groups, and the overall postoperative complication rate was low (6.3 %) and comparable. The postoperative KPS score between UHL and TL showed improvement, without significant difference between them. Both approaches yielded significant improvements in functional status and neurological recovery from preoperative baselines. Discussion and conclusion Our findings indicate that the tissue-sparing UHL approach can achieve similar functional outcomes and complication rates as TL for similarly sized tumors. This supports UHL as a safe and effective option, although the final surgical approach must remain individualized based on specific tumor complexity and radiological findings.

BACKGROUND White cord syndrome (WCS) is a rare and extremely serious complication that can occur following spinal decompression procedures for severe mostly cervical spinal stenosis. It is often reported immediately after surgery or several hours to days postoperatively and is identified via a diagnosis of exclusion based on new-onset sudden motor weakness after a decompression procedure. OBSERVATIONS The authors report the illustrative case of a 54-year-old female patient with WCS, who was managed with surgical intervention, corticosteroid therapy, and mean arterial blood pressure support. Additionally, the authors systematically reviewed an additional 27 cases of WCS documented in the literature. LESSONS A relatively favorable clinical outcome was observed in this patient following surgical intervention combined with corticosteroid therapy and mean blood pressure support. Currently, there are no established guidelines for the treatment of WCS; however, in any patient experiencing sudden neurological deterioration after cervical spinal decompressive surgery—especially when a known cause is unidentified—WCS should be considered as a potential diagnosis, and prompt treatment should be initiated to attempt to improve outcomes. https://thejns.org/doi/10.3171/CASE25542

Background and Objectives: Idiopathic normal-pressure hydrocephalus (NPH) is a treatable, but diagnostically challenging condition in the elderly marked by gait disturbance, cognitive decline, and urinary incontinence. Ventriculoperitoneal (VP) shunting is effective, but the prognostic significance of symptom duration before surgery remains unclear. This systematic review evaluates symptom duration in NPH patients with postoperative outcomes. Methods: A systematic search of PubMed, Scopus, and Embase was conducted per PRISMA guidelines. Studies were included if they assessed clinical or radiological outcomes of VP shunting in adult NPH patients, reported symptom duration, and had a follow-up of at least one month. Clinical outcomes (MMSE, TUG, NPH score) were qualitatively analyzed due to study heterogeneity. Results: Twenty-four studies comprising 1169 patients were included (mean age: 72.45 years; mean symptom duration: 33.04 months). Most studies reported clinical improvement after VP shunting. However, few directly evaluated the effect of symptom duration, yielding inconsistent findings: some suggested better outcomes with shorter symptom duration, while others found no clear correlation. Larger studies often lacked conclusive data, and no randomized controlled trials were identified. Conclusions: VP shunting remains an effective intervention for NPH; however, evidence supporting the predictive value of preoperative symptom length is inconclusive. This review highlights the need for standardized diagnostic protocols and larger prospective studies to clarify this association and optimize surgical timing.

I. Omerhodžić, B. Rovčanin, A. Džurlić, Mirsad Hodžić, Rasim Skomorac, Hakija Bečulić, S. Zahirović, Fahrudin Alić et al.

OBJECTIVES Brain tumor-related epilepsy management poses significant challenge in clinical practice. Healthcare providers must tailor treatment based on each patient's unique circumstances. Different antiepileptic drugs can be used, including oxcarbazepine. Several studies show this drug's efficacy and safety in brain tumor-related epilepsy. METHODS Observational, prospective study, monitoring the efficacy and safety of the drug oxcarbazepine in the prevention of epileptic seizures, included adult patients of both sexes with a supratentorial tumor and a risk of epileptic seizures after neurosurgery. RESULTS The study included 153 hospitalized patients. The percentages of amplified waves, sharp waves, and spike waves decreased in the second and third compared with the first visit. Significantly lower percentages of sharp waves (P = 0.028) on the second compared with the first measurement and spike waves (P = 0.002) on the third compared with the first measurement were determined. Deterioration from normal to low hemoglobin concentration was observed in 40 (26%) patients at the second visit and 17 (12%) at the third visit, compared with the first visit. However, mean corpuscular volume, mean corpuscular hemoglobin, and mean corpuscular hemoglobin concentration values did not change significantly during the 6 months of follow-up. A transient drop in the number of thrombocytes was observed on the second visit. Adverse reactions to the drug were mild. Therapeutic adherence was low, as measured by the Morisky Medication Adherence Scale (MMAS-4). CONCLUSIONS The drug oxcarbazepine has shown good efficacy and safety in the prevention of epileptic attacks after neurosurgery in patients with supratentorial tumors. Additional education of patients on the importance of taking regular therapy is crucial.

Eduardo Erasmo Mendoza Mireles, Stefanie Quach, Kaspars Auslands, Stephanie T Jünger, David Wasilewski, Nafiye Şanlıer, Rina Di Bonaventura, Oliver Kennion et al.

Andreas Kramer, S. Thavarajasingam, Jonathan Neuhoff, F. Lange, H. S. Ponniah, S. Lener, Claudius Thomé, F. Stengel et al.

BACKGROUND CONTEXT Spondylodiscitis management presents significant clinical challenges, particularly in critically ill patients, where the risks and benefits of surgical intervention must be carefully balanced. The optimal timing of surgery in this context remains a subject of debate. PURPOSE This study aims to evaluate the effectiveness of early surgery versus delayed surgery or conservative management in critically ill patients with de novo pyogenic spondylodiscitis. STUDY DESIGN/SETTING This is an international, multicenter retrospective cohort study involving 24 centers, primarily in Europe. PATIENT SAMPLE The study included 192 critically ill patients (65.63% male) with a median age of 69 years, all severely affected by pyogenic spondylodiscitis characterized by an initial CRP level >200 mg/l or the presence of two out of four Systemic Inflammatory Response Syndrome criteria upon admission. OUTCOME MEASURES The primary outcome was 30-day mortality. Secondary outcomes included length of ICU stay, length of hospital stay, and relapse rates of spondylodiscitis. METHODS Patients were divided into three groups: early surgery (within three days of admission), delayed surgery (after three days of admission), and conservative therapy. Propensity score matching and multivariate regression analyses were performed to adjust for baseline differences and assess the impact of treatment modalities on mortality and other clinical outcomes. RESULTS Delayed surgery was associated with significantly lower 30-day mortality (4.05%) compared to early surgery (27.85%) and conservative therapy (27.78%) (p<0.001). Delayed surgery also resulted in shorter hospital stays (42.76 days) compared to conservative therapy (55.53 days) and early surgery (26.33 days) (p<0.001), and shorter ICU stays (4.52 days) compared to conservative therapy (16.48 days) and early surgery (7.92 days) (p<0.001). The optimal window for surgery, minimizing mortality, was identified as ten to fourteen days post-admission (p=0.02). Risk factors for increased mortality included age (p<0.05), multiple organ failure (p<0.05), and vertebral body destruction (p<0.05), whereas delayed surgery (p<0.05) and the presence of an epidural abscess were associated with reduced mortality (p<0.05). CONCLUSIONS Delayed surgery, optimally between 10 to 14 days post-admission, was associated with lower mortality in critically ill spondylodiscitis patients. These findings highlight the potential benefits of considering surgical timing to improve patient outcomes.

The modern period of neurosurgery in Bosnia and Herzegovina began with the first neurosurgical procedure performed by Dr. Karl Bayer in 1891 on 3 patients with depressed skull fractures and epilepsy. In 1956 the Department of Surgery in Sarajevo designated several beds specifically for a neurosurgical unit. A significant milestone in the history of neurosurgery in Bosnia and Herzegovina was the establishment of the Division of Neurosurgery at the Clinical Center University of Sarajevo in 1970. The first neurosurgeon to complete his training in Bosnia and Herzegovina was Dr. Faruk Konjhodžić. The first female neurosurgeon was Dr. Nermina Iblizović. Presently, there are 7 neurosurgical departments in the country, located in Sarajevo, Tuzla, Zenica, Mostar, Banja Luka, Bihać, and Foča. The Association of Neurosurgeons in Bosnia and Herzegovina, founded in 2003, is a member of the European Association of Neurosurgical Societies and the World Federation of Neurosurgical Societies. The aim of this historical paper is to provide a concise chronology of important events and mention key individuals who have contributed to the development of modern neurosurgery in Bosnia and Herzegovina.

Introduction Chronic subdural hematoma (CSDH) is a prevalent condition commonly seen in elderly individuals, often requiring neurosurgical intervention. Research question This study investigates patient characteristics and recurrence rates in CSDH patients treated with single or double burr hole surgery in Bosnia and Herzegovina. Methods: A retrospective study was conducted on patients treated for CSDH between January 2018 and December 2022. The diagnosis of CSDH was confirmed through preoperative CT or MRI of the brain. Patients underwent either single or double burr hole surgery based on the neurosurgeon's decision. Preoperative and postoperative brain CT scans, along with clinical outcomes, were analyzed. Results A total of 87 patients were included in the study, with 102 burr hole surgeries performed. Among these, 49 patients received single burr hole surgery, while 53 patients underwent double burr hole surgery. Recurrence of CSDH occurred in 8.8% of cases, with no significant difference observed between the groups. Notably, single burr hole surgery demonstrated comparable efficacy to double burr hole surgery in terms of subdural reduction and occurrence of pneumocephalus, while exhibiting fewer complications and shorter hospitalization. Discussion and conclusions burr hole surgery, whether performed as a single or double procedure, is an effective treatment option for CSDH, as it leads to positive outcomes in both radiological and clinical assessments of patients following surgery. The population of Bosnia and Herzegovina receives good neurosurgical care for CSDH.

H. Sefo, B. Rovčanin, D. Jesenković, Melika Džeko, Amra Avdić, A. Ahmetspahić, I. Omerhodžić, Ermin Hadžić et al.

Introduction: Meningiomas are the most common benign tumor of the central nervous system, accounting for 53.3% and 37.6% of all central nervous system tumors (1). The World Health Organization (WHO) Grade I meningiomas account for 80.5% of all meningiomas and are considered benign meningiomas; the WHO Grade II meningiomas account for 17.7% of all meningiomas and exhibit more aggressive behavior. Methods: In the period 2015-2022, a retrospective single-center study at the clinic of neurosurgery at the Clinical Center University of Sarajevo was conducted, which included patients with a pathohistological finding of WHO Grade I or II meningioma. Depending on the pathohistological grade of the tumor, patients were divided into two groups: Grade I and Grade II patients. Patients were examined clinically and radiologically. Clinical data collected included in the study: Gender, age, number of symptoms before surgery, whether patients were symptomatic or asymptomatic, pre-operative Eastern Cooperative Oncology Group,and Karnopsky performance scale. Pre-operative contrast magnetic resonance imaging of the head measured tumor volume, temporal muscle thickness (TMT), sagittal midline shift, and surrounding cerebral edema. Results: A total of 80 patients were enrolled in the study, 68 with WHO Grade I and 12 with WHO Grade II meningiomas. We found that patients with Grade I meningioma were younger and that the mean thickness of the temporal muscle was statistically thicker than in patients with Grade II. Increasing TMT was significantly and positively associated with Grade I tumors and negatively associated with Grade II tumors (p = 0.032). Conclusion: This study demonstrates that TMT can serve as a radiologic pre-operative indicator of meningioma grade and provide valuable guidance to neurosurgeons in surgical planning. Further studies are needed to validate these results.

K. Gousias, A. Hoyer, L.A. Mazurczyk, J. Bartek, M. Bruneau, E. Çeltikçi, N. Foroglou, C. Freyschlag et al.

Introduction Technical advances and the increasing role of interdisciplinary decision-making may warrant formal definitions of expertise in surgical neuro-oncology. Research question The EANS Neuro-oncology Section felt that a survey detailing the European neurosurgical perspective on the concept of expertise in surgical neuro-oncology might be helpful. Material and methods The EANS Neuro-oncology Section panel developed an online survey asking questions regarding criteria for expertise in neuro-oncological surgery and sent it to all individual EANS members. Results Our questionnaire was completed by 251 respondents (consultants: 80.1%) from 42 countries. 67.7% would accept a lifetime caseload of >200 cases and 86.7% an annual caseload of >50 as evidence of neuro-oncological surgical expertise. A majority felt that surgeons who do not treat children (56.2%), do not have experience with spinal fusion (78.1%) or peripheral nerve tumors (71.7%) may still be considered experts. Majorities believed that expertise requires the use of skull-base approaches (85.8%), intraoperative monitoring (83.4%), awake craniotomies (77.3%), and neuro-endoscopy (75.5%) as well as continuing education of at least 1/year (100.0%), a research background (80.0%) and teaching activities (78.7%), and formal interdisciplinary collaborations (e.g., tumor board: 93.0%). Academic vs. non-academic affiliation, career position, years of neurosurgical experience, country of practice, and primary clinical interest had a minor influence on the respondents’ opinions. Discussion and conclusion Opinions among neurosurgeons regarding the characteristics and features of expertise in neuro-oncology vary surprisingly little. Large majorities favoring certain thresholds and qualitative criteria suggest a consensus definition might be possible.

A. Ahmetspahić, E. Burazerovic, Dragan Janković, Eleonora Kujaca, Hana Rizvanovic, I. Omerhodžić, H. Sefo, Nermir Granov

Abstract Background  Many recent studies show that exoscopes are safe and effective alternatives to operating microscopes (OM). Developments of robotics and automation are present in neurosurgery with the appearance of a newer device such as RoboticScope (RS) exoscope with a digital three-dimensional (3D) image and a head-mounted display. The body of the RS is connected to a six-axis robotic arm that contains two video cameras, and serves as stereovision. This robotic arm allows accurate 3D camera motions over the field of view, giving the user a great degree of freedom in viewpoint selection. The surgeons may specify the direction and speed of the robotic arm using simple head movements when the foot pedal is pressed. Since its development in 2020, the RS has occasionally been used in neurosurgery for a multitude of procedures. Methods  This study showcases vessel microanastomosis training on chicken legs using the RS. The aim of this study is to demonstrate the feasibility of the RS without a comparative analysis of the standard OM. The study was conducted in 2023 during a month-long trial period of the device at the Department of Neurosurgery of the Clinical Center of the University of Sarajevo. All procedures including RS-assisted anastomosis were performed by a neurosurgeon in anastomosis training (A.A.) supervised by a senior vascular neurosurgeon (E.B.). For the purpose of the study, we evaluated occlusion time in minutes, bypass patency with iodine, and overall satisfaction of the trainee in terms of light intensity, precision of automatic focus, mobility of the device, ergonomics, and convenience of the helmet. Results  Ten RS-assisted microanastomoses were performed by interrupted suturing technique with 10.0 nylon thread. Bypass training included seven “end-to-side,” two “end-to-end,” and one “side-to-side” microanastomoses. The smallest vessel diameter was 1 mm. Occlusion time improved by training from 50 to 24 minutes, with contrast patency of the anastomoses in all cases without notable leakage of the contrast, except one case. Complete satisfaction of the trainee was achieved in 7 out of 10 cases. During this period, we also performed different RS-assisted surgeries including a single indirect bypass, convexity brain tumor resection, and microdiscectomies. Conclusion  RS provides a new concept for microanastomosis training as an alternative or adjunct to the standard microscope. We found a full-time hands-on microsuturing without the need for manual readjustment of the device as an advantage as well as instant depth at automatic zooming and precise transposition of the focus via head movements. However, it takes time to adapt and get used to the digital image. With the evolution of the device helmet's shortcomings, the RS could represent a cutting-edge method in vessel microanastomosis in the future. Nevertheless, this article represents one of the first written reports on microanastomosis training on an animal model with the above-mentioned device.

Aim To investigate the serum value of brain derived neurotrophic factor (BDNF), proteins S-100, NSE, IL-6 in normal pressure patients (NPH) compared to control (healthy) group and also a possible correlation with radiological findings in NPH patients. Methods Study patients were included during the period of 2020- 2022. All NPH patients met the diagnostic criteria for probability of NPH. Control patients group included patients without known brain disorder, without clinical symptoms of NPH. Blood samples were taken before planned surgery for NPH. BDNF serum concentrations were assessed by a sensitive ELISA kit, and serum concentrations of S-100, NSE and IL-6 were assessed by using ECLIA technology for immunoassay detection. Results Among 15 patients who were included, seven NPH patients were compared to eight control patients. Non-significant decrease in BDNF serum concentrations, an increase of protein S-100 serum concentrations, a decrease of NSE serum concentrations, as well as an increase of IL-6 serum concentrations in NPH patients compared to healthy controls was found. Strong positive correlation between BNDF and Evans index was observed (p=0.0295). Conclusion We did not find a significant difference of BDNF, protein S-100, IL-6 and NSE between serum concentration in NPH and healthy patients. More future research is needed to find the role of BDNF in NPH patients.

Introduction Decompressive craniectomy (DC) can save brain tissue, but unfortunately it has many limitations and complications. Hinge craniotomy (HC), as less aggressive method seems to be adequate alternative not only to DC but also to conservative treatment. Research question Presentation of the results of modified surgical techniques of cranial decompression and comparing with more and less aggressive medical options. Material and methods A prospective clinical study was conducted during 86 months. Comatose patients who suffered refractory intracranial hypertension (RIH) were treated. Altogether, 137 patients have been evaluated. The final outcome of all patients in the study was evaluated after 6 months. Results Both surgical options resulted in adequate control of intracranial pressure (ICP). HC method was shown to have the lowest probability of worsening from a prior state of relative stability. Discussion and conclusion There was no statistically significant difference between methods to treatment of DC or HC, meaning the final outcome of patients treated in any manner. There was similar rate of early and late complications.

Background: Sarcoidosis is a multisystem granulomatous disease of unknown etiology, characterized by presence of granulomas in affected tissues with variety in clinical presentations and presents a differential diagnostic and therapeutic dilemma. Clinical presentation of neurosarcoidosis is very variable. Diagnosis is based on clinical and radiological criteria and histological findings of disseminated non-necrotic granuloma followed by negative cultures for bacteria and fungi. MRI plays a key role in detection of lesions located in the brain parenchyma. Objective: The aim of this article was to present case of a 36-year-old male patient, who came to doctor with symptoms of fever, dry cough with whitish sputum, lymphadenopathy of neck region and neurological disturbances in form of headaches and vision problems. Case presentation: Patient underwent on pulmonary examination and results indicated presence of sarcoidosis. CT examination was performed (SIEMENS Somatom Definition AS, Erlangen, Germany), which confirmed presence of mediastinal and hilar lymphadenopathy. Ultrasound (US) examination of a neck region was also performed showed significantly enlarged and morphology altered lymph nodes. After biopsy of several neck lymph nodes, histopathological was proven diagnosis of sarcoidosis. Due to neurological disturbances in form of headaches and vision problems patient was examined by an ophthalmologist, neurologist and endocrinologist. Hormonal analysis showed an increase of prolactin and that raised suspicion for neurosarcoidosis. In further diagnostic evaluation it was indicated MRI examination of the brain with focus on sellar region. Conclusion: Contrast-enhanced MRI is the modality of choice for investigating suspected neurosarcoidosis. The versatility of MR recording and the amount of diagnostic informations obtained from MRI examination is huge. Comparison of MRI sequences obtained, facilitate interpretation of these findings. Obtained MRI information and available literature, correlating with other diagnostic modalities (ultrasound and CT) facilitate understanding of the specific pathology.

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