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Besides others, reducing the number of species threatened with extinction is an essential and immediate task as high genetic variability of ecosystems is crucial for their stability under changing climatic conditions.BACKGROUND Glomus jugulare tumors (GJTs) are uncommon and locally disruptive tumors that usually arise within the jugular foramen of the temporal bone. Surgery was the treatment of choice up until recently. In the last decades, however, radiosurgery has surfaced as a promising alternative treatment by providing excellent tumor control with low risk of cranial nerve injuries. Our aim was to examine the results of radiosurgery specifically, linear accelerator stereotactic radiosurgery (LINAC SRS) for GJT treatment. Protosappanin B order We hypothesized that radiosurgery will reduce the size of the tumor and improve neurological symptoms. DESIGN AND METHOD Between January 1, 1994 and December 31, 2013, 30 patients with GJTs were treated in Sheba Medical Center using LINAC SRS treatment. Comprehensive clinical follow-up was available for 23 patients. Sixteen patients were female and seven males with a median age of 64 years, with a range of 18-87 years. In 19 of the patients, LINAC SRS was the primary treatment, whereas in the remaining four cases, surgery or embolization preceded radiosurgery. The median treated dose to tumor margin was 14 Gy (range 12-27 Gy), and the median tumor volume before treatment was 5 ml (range 0.5-15 ml). RESULTS Following the LINAC SRS treatment, 14 of 23 patients (60%) showed improvement of previous neurological deficits, nine patients (40%) remained unchanged. At the end of a follow-up, tumor reduction was seen in 13 patients and a stable volume in eight (91% tumor control rate). Two cases of tumor progression were noted. Three patients (13%) had post- SRS complications during the follow-up, two of which achieved tumor control, while in one the tumor advanced. CONCLUSIONS LINAC SRS is a practical treatment option for GJTs, with a high rate of tumor control and satisfactory neurological improvement.BACKGROUND Skull base reconstruction after extended endoscopic endonasal approaches (EEAs) can be challenging. In addition to the nasoseptal flap, which has been adopted by most centers, autologous fascia lata is also often utilized. Harvesting of fascia lata requires a separate thigh incision, may prolong recovery, and results in a visible scar. In principal, the use of non-autologous materials would be preferable to avoid a second incision and maintain the minimally invasive nature of the approach, assuming the CSF leak rate is not compromised. OBJECTIVE To assess the efficacy of acellular dermal matrix (ADM) as a non-autologous alternative to autologous fascia lata graft for watertight closure of the cranial base following EEAs. METHODS A retrospective chart review of extended EEAs performed before and after the transition from fascia lata to ADM was performed. Cases were frequency matched for approach, pathology, BMI, use of lumbar drainage, and tumor volume. Power analysis was performed to estimate the sample size needed to demonstrate non-inferiority. RESULTS ADM was used for watertight closure of the cranial base in 19 consecutive extended endoscopic endonasal approaches (16 gasket-seals and 3 buttons) with 1 postoperative CSF leak at the last follow-up (median 5.3, range 1.0-12.6 months). All patients had high-flow intraoperative leaks. The cohort included 8 meningiomas, 8 craniopharyngiomas, 2 chordomas, and 1 pituicytoma ranging in size from 0.2 to 37.2cm3 (median 5.5, IQR 2.8-13.3 cm3). In 19 historical controls who received fascia lata, there were 2 postoperative CSF leaks. CONCLUSIONS Preliminary results suggest that ADM provides a non-inferior non-autologous alternative to fascia lata for watertight gasket-seal and button closures following extended EEAs, potentially reducing or eliminating the need to harvest autologous tissue.OBJECTIVES The diagnostic reading of follow-up low-dose whole-body computed tomography (WBCT) examinations in patients with multiple myeloma (MM) is a demanding process. This study aimed to evaluate the diagnostic accuracy and benefit of a novel software program providing rapid-subtraction maps for bone lesion change detection. METHODS Sixty patients (66 years ± 10 years) receiving 120 WBCT examinations for follow-up evaluation of MM bone disease were identified from our imaging archive. The median follow-up time was 292 days (range 200-641 days). Subtraction maps were calculated from 2-mm CT images using a nonlinear deformation algorithm. Reading time, correctly assessed lesions, and disease classification were compared to a standard reading software program. De novo clinical reading by a senior radiologist served as the reference standard. Statistics included Wilcoxon rank-sum test, Cohen's kappa coefficient, and calculation of sensitivity, specificity, positive/negative predictive value, and accuracy. RESUtion maps significantly facilitate the reading of follow-up whole-body low-dose CT scans in multiple myeloma by reducing reading time and increasing sensitivity.PURPOSE To evaluate the efficacy and intermediate-term outcome of balloon-occluded retrograde transvenous obliteration (BRTO) for the treatment of hepatic encephalopathy (HE) secondary to portosystemic shunt (PSS) in cirrhotic patients. MATERIALS AND METHODS Institutional review board (IRB) approval was obtained for this study and hospital records of patients who underwent BRTO, from August 2011 to August 2015, were analyzed. Based on the inclusion and exclusion criteria, 39 patients (age, 54.07 ± 9.1 years (37-67 years); 33 males and 6 females) with cirrhosis and spontaneous PSS were included. Clinical and laboratory parameters and HE grade were evaluated in all patients before and after the procedure. RESULTS Forty sessions of BRTO were attempted in 39 patients. Follow-up imaging revealed complete obliteration of the treated PSS in all patients with clinical success in 37 patients (94.9%). The 1-, 2-, 3-, 4-, 5-, 6-, and 7-year HE-free survival rates among responders were 91.7%, 91.7%, 88.8%, 85.5%, 80.8%, 80.
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