World Neurosurg
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The paper proposes an improved LANDMARC positioning algorithm to improve the location accuracy of environmental obstacles for medicine care monitoring in neurology. The paper proposes a log path loss correction model and uses the model to compensate the positioning signal to improve the positioning accuracy of the algorithm caused by the attenuation of the indoor positioning signal by the wall. The experimental results show that the LANDMARC positioning algorithm based on the log path loss correction model can improve the positioning accuracy of medical monitoring in neurology.
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Melanocytic lesions of the nervous system are thought to arise from leptomeningeal melanocytes, which are derived from neural crest and include diffuse melanocytosis, melanocytomas, and malignant melanomas. Meningeal melanocytomas are extremely rare benign lesions. The usual treatment of intradural extramedullary melanocytomas involves surgical removal through a posterior approach using a laminectomy or laminotomy. ⋯ There is no evidence of recurrence at 4-year follow-up records of the patient. We discuss the surgical approach of these rare lesions.
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The insertion of a subdural drain (SDD) after burr-hole drainage of chronic subdural hematoma (cSDH) was shown to reduce recurrence rate and improve outcome at 6 months. However, studies analyzing the rate of drain misplacement and complications associated with drain misplacement are sparse. ⋯ The occurrence of SDD misplacement is unignorable, because it leads to iatrogenic drain-associated complications and seems to affect bleeding events and hospitalization time of patients undergoing burr-hole drainage of cSDH.
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To assess the efficacy and safety of surgery for dysphagia in anterior cervical idiopathic hyperostosis. ⋯ Anterior cervical hyperostosis causing dysphagia typically affects older men and results from compression between C3 and C5 from osteophytes of variable sizes. Operative intervention can provide long-lasting resolution of symptoms but is complicated by difficulty in endotracheal intubation, postoperative dysphagia, and rarely respiratory compromise. A systematic preoperative ear, nose, and throat consultation is recommended to reduce these complications.
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This paper explores the diagnosis of deep invasive endometriosis through retrospective data analysis, including deep infiltration and magnetic resonance imaging. The literature retrospectively collected data from 21 patients with deep invasive endometriosis who were admitted from 2012 to 2018. The patients were confirmed to have pain and nerve growth factor (NGF) receptor expression levels after operation and underwent vaginal color ultrasound and magnetic resonance imaging before surgery. ⋯ Through research it has been found that deep invasive endometriosis mainly involves the uterine fibula ligament, vagina, uterus rectum, rectum, ureter, and so forth. Patient pain is related to the expression level of NGF receptor, and its magnetic resonance mainly manifests as signals and structural obstacles, irregular thickening of the affected area, or nodular formation and deformation of adjacent tissues and organs. Through research and demonstration of deep invasive endometriosis, transvaginal color ultrasound and magnetic resonance imaging can not only accurately locate the expression levels of pain and NGF receptors, but also show the extent of the lesions, thereby studying pain and NGF receptor expression, which is an important method for preoperative examination and postoperative follow-up.