World Neurosurg
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Recognition of congenital tethered cervical cord in adults and literature review. ⋯ Neurocutaneous stigmata should not be considered benign. A missed clinical diagnosis was apparent in all 3 patients; 2 of whom underwent surgery with excellent results. MRI can identify the abnormal cervical cord protruding towards the "sinus tract" and allow planning to avert injury to the spinal cord during release.
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The paper uses clinical neuropsychological testing methods and resting state functional MRI technology to investigate whether chemotherapy can cause cognitive impairment and/or changes in local brain activity in breast cancer patients. In the thesis, 21 breast cancer patients (stage Ⅰ-Ⅲ) who had not undergone radiotherapy and adjuvant chemotherapy were confirmed by clinical surgery and pathology, with an average age of (50.14±13.12) years. Perform 6 neuropsychological tests before chemotherapy and 1 month after chemotherapy, conventional horizontal axis T2-weighted fluid attenuation inversion recovery (T2-FLAIR) sequence, plane echo imaging blood oxygen level dependent (EPI-Bold) functional sequence collection. ⋯ One month after chemotherapy, the brain areas with increased ALLF in breast cancer patients include: left inferior temporal gyrus, right middle temporal gyrus, left middle temporal and upper gyrus, and bilateral praecuneus. In breast cancer patients, memory, attention, executive function and processing speed are reduced in the short term after conventional chemotherapy. Chemotherapy changes the neural activity of the resting local brain areas, mainly the increased activity of the bilateral anterior cuneiform and middle temporal gyrus, which is the brain area that constitutes the default network (DMN).
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Retraction Of Publication
WITHDRAWN: Effect of abdominal aortic balloon occlusion timing on femoral nerve injury in patients with dangerous placenta preview based on color dropper ultrasound images.
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found athttps://www.elsevier.com/about/our-business/policies/article-withdrawal.
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Surgical brain injury caused by brain retraction is a well-known consequence of intracranial surgery. Modern retractor designs, particularly since the 1980s, have significantly improved ease of use, improved visibility for surgeons, and minimized retraction-induced injuries, though not yet been entirely eliminated. ⋯ Traditionally, self-retaining brain retractors with moveable arms and 1 or more attachable blades made from malleable stainless steel or silicone rubber have been the tool of choice; however, recently tubular retraction systems that only require fixation to the head frame and cause less focal pressure damage than older retractors have gained in popularity for some cases. This review aims to address the history of brain retraction and discuss each of the commonly used brain retractor types, as well as some newer and less common varieties especially in terms of the extent of tissue damage typically caused as well as the types of injuries reported by the users.
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The coronavirus disease 2019 (COVID-19) pandemic has infected more than 13 million people on a global scale and claimed more than half million deaths across 213 countries and territories. While the focus is currently on recovery from the pandemic, the disease has significantly changed the way we practice medicine and neurosurgery in New York City and the United States. Apart from the emergency cases, several health systems across the country have similarly started to perform elective surgeries. Although COVID-19 screening and testing guidelines have been proposed and adopted by many hospitals, these may not adequately protect the operating room personnel who are in proximity to the patient for prolonged periods. There are concerning reports of especially high transmission rates of COVID-19 in transmucosal head and neck procedures conducted by otolaryngologists and neurosurgeons, despite attempts at wearing what constitutes appropriate personal protective equipment. ⋯ With the rising concerns regarding airborne spread of the virus, we expect that these precautions will prove highly useful as we enter the recovery phase of this pandemic and hospitals attempt to prevent a return to widespread infection. In addition, its availability and cost effectiveness make this technique especially attractive to practical use in centers with limited resources.