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Objective: For treatment of refractory increased intracranial pressure (ICP), a controlled lumbar drainage (LD) of cerebral spinal fluid is accepted as a last tier treatment option. On the other hand, LD in acute brain injury remains associated with the fear of tentorial herniation, because reliable [for full text, please go to the a.m. URL]

Objective: Navigated pedicle screw placement holds distinct advantages in spinal oncology. New implant materials such as carbon-fiber reinforced PEEK (CFRP) additionally increase the quality of radiological follow-up and adjuvant radiation therapy planning through the reduction of imaging artifacts [for full text, please go to the a.m. URL]

Objective: Neurosurgical management of malignant hemispheric stroke (MHS) after cardiac surgery remains difficult because decision-making needs to consider severe cardiovascular comorbidities and anticoagulation requirements.Here, we analyzed anticoagulation management and outcome in patients undergoing [for full text, please go to the a.m. URL]

Objective: Burr hole evacuation of chronic subdural hematoma (cSDH) carries a relevant risk of recurrence. Recent evidence has suggested that endovascular middle meningeal artery (MMA) occlusion may help reduce this risk. However, endovascular MMA occlusion requires an additional intervention and is [for full text, please go to the a.m. URL]

Background In a previous article (10.1007/s00701-019-03888-3), preliminary results of a survey, aiming to shed light on the number of surgical procedures performed and assisted during neurosurgery residency in Europe were reported. We here present the final results and extend the analyses. Methods Board-certified neurosurgeons of European Association of Neurosurgical Societies (EANS) member countries were asked to review their residency case logs and participate in a 31-question electronic survey (SurveyMonkey Inc., San Mateo, CA). The responses received between April 25, 2018, and April 25, 2020, were considered. We excluded responses that were incomplete, from non-EANS member countries, or from respondents that have not yet completed their residency. Results Of 430 responses, 168 were considered for analysis after checking in- and exclusion criteria. Survey responders had a mean age of 42.7 ± 8.8 years, and 88.8% were male. Responses mainly came from surgeons employed at university/teaching hospitals (85.1%) in Germany (22.0%), France (12.5%), the United Kingdom (UK; 8.3%), Switzerland (7.7%), and Greece (7.1%). Most responders graduated in the years between 2011 and 2019 (57.7%). Thirty-eight responders (22.6%) graduated before and 130 responders (77.4%) after the European WTD 2003/88/EC came into effect. The mean number of surgical procedures performed independently, supervised or assisted throughout residency was 540 (95% CI 424–657), 482 (95% CI 398–568), and 579 (95% CI 441–717), respectively. Detailed numbers for cranial, spinal, adult, and pediatric subgroups are presented in the article. There was an annual decrease of about 33 cases in total caseload between 1976 and 2019 (coeff. − 33, 95% CI − 62 to − 4, p = 0.025). Variables associated with lesser total caseload during residency were training abroad (1210 vs. 1747, p = 0.083) and female sex by trend (947 vs. 1671, p = 0.111), whereas case numbers were comparable across the EANS countries (p = 0.443). Conclusion The final results of this survey largely confirm the previously reported numbers. They provide an opportunity for current trainees to compare their own case logs with. Again, we confirm a significant decline in surgical exposure during training between 1976 and 2019. In addition, the current analysis reveals that female sex and training abroad may be variables associated with lesser case numbers during residency.

Objective: The precision of machine learning algorithms and surface matching and for planning and execution of spinal navigation based on preoperative imaging may be hampered by spinal alignment shifts caused by the intraoperative shift to prone position. In this study, we determined the spinal alignment[for full text, please go to the a.m. URL], 72. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie (DGNC), Joint Meeting mit der Polnischen Gesellschaft für Neurochirurgie

Objective: A small number of complex intracranial aneurysms is not amenable to direct clipping strategies or endovascular treatment. In these patients, parent artery sacrifice and bypass revascularization for aneurysm occlusion is an option. There are three strategies for parent artery sacrifice: trapping,[for full text, please go to the a.m. URL], 72. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie (DGNC), Joint Meeting mit der Polnischen Gesellschaft für Neurochirurgie

Objective: Navigated pedicle screw placement can be performed using intraoperative computerized tomography (CT) or digital volume tomography (DVT). An additional benefit of using high-resolution intraoperative imaging, such as DVT, is the possibility to immediately assess screw placement with the chance[for full text, please go to the a.m. URL], 71. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie (DGNC), 9. Joint Meeting mit der Japanischen Gesellschaft für Neurochirurgie

Objectives: Mechanical loading plays an important role in regulating the development and maintenance of cartilage. Permanent improper loading supports the pathogenesis of osteoarthritis (OA) whereas moderate loading supports the preservation of cartilage. As post-transcriptional regulators of gene expression,[for full text, please go to the a.m. URL], Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2018)

Objective: Spreading depolarization (SD) occurs in high frequency in patients with malignant hemispheric stroke (MHS) and is coupled to different hyperaemic or hypoaemic blood flow responses. Body temperature is a major trigger for SDs and influences the accompanied flow coupling. Here, we investigated[for full text, please go to the a.m. URL], 69. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie (DGNC), Joint Meeting mit der Mexikanischen und Kolumbianischen Gesellschaft für Neurochirurgie

Objective: Formerly we characterized the process of spontaneous collateral remodeling (arteriogenesis) in a model of chronic cerebral hypoperfusion. Recent evidence in the field of peripheral artery and coronary heart disease research suggests that this process is accompanied by upregulation of the [for full text, please go to the a.m. URL], 69. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie (DGNC), Joint Meeting mit der Mexikanischen und Kolumbianischen Gesellschaft für Neurochirurgie

Objective: Recently, we characterized cerebral arteriogenesis in a mouse model of chronic cerebral ischemia. However, proximal vessel occlusion in cerebral hemodynamic compromise is usually caused by atherosclerotic cerebrovascular disease. Here, Apolipoprotein E (ApoE) serves as a main cholesterol [for full text, please go to the a.m. URL], 69. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie (DGNC), Joint Meeting mit der Mexikanischen und Kolumbianischen Gesellschaft für Neurochirurgie

International audience

Objective: Posterior fossa (PF) pathologies represent a lesion entity which differs from supratentorial lesions. Little is known about pathological ICP values in the infratentorial compartment and outcome-associated factors. Due to brain stem involvement, pressure tolerance may differ from the supratentorial[for full text, please go to the a.m. URL], 65. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie (DGNC)