World Neurosurg
-
We investigate the change of the default mode network (DMN) by using amplitude of low-frequency fluctuation (ALFF) and functional connectivity (FC) methods in acute phase patients after severe traumatic brain injury (sTBI) and correlate these changes with prognosis. ⋯ Increases in FC and ALFF values in the DMN are related to better prognosis in patients with sTBI.
-
To evaluate effectiveness of random skin biopsies for intravascular large B-cell lymphoma (IVLBCL) with or without central nervous system (CNS) involvement. ⋯ Random skin biopsies before brain biopsy are recommended in patients with suspected IVLBCL regardless of CNS involvement, but low sIL-2R values and steroids may yield false-negative results.
-
The use of posterior vertebral column resection (PVCR) has extended the treatment of severe spinal deformity. However, the practice guidelines for anterior column support in patients treated by PVCR remain ill defined. The objective of the present study was to compare the clinical and radiographic outcomes of severe thoracic spinal deformity treated by PVCR with and without anterior column support (ACS). ⋯ The results of the present study have shown that PVCR without ACS seems to be a safe and effective technique for Yang's A type severe thoracic spinal deformity correction compared with PVCR with ACS. PVCR without ACS requires a relatively smaller osteotomy range and could potentially decrease the risk of implant failure due to bone to bone fusion.
-
Patients with chronic subdural hematoma (CSDH) typically present with symptoms of increased intracranial pressure, including headache, nausea/vomiting, and somnolence, or with contralateral weakness. Compression of the convexity cerebral cortex usually causes motor deficit that is more readily appreciated in the upper extremity rather than in the leg, and very subtle deficit may be detected only by looking for pronator drift. The precise pattern of signs and symptoms in CSDH may vary from case to case depending on the specific anatomy of compression, but isolated lower extremity weakness is rare. ⋯ CSDH overlying the cerebral convexity may manifest with isolated foot weakness. Awareness of the potential for this unusual presentation of CSDH may be useful to the clinician assessing a patient with otherwise unexplained foot weakness.
-
Observational Study
Utility Of The Vidian Canal In Endoscopic Skull Base Surgery: Detailed Anatomy And Relation To Internal Carotid Artery.
To investigate key anatomic features of the vidian canal that have a critical role in planning and performing endoscopic skull base surgeries. ⋯ A variety of previously undefined features of the vidian canal that can alter the course of surgical procedure were defined. The position of the vidian canal with respect to the petrous internal carotid artery (ICA) was extensively described. From a surgical standpoint, a working room inferior and medial to the vidian canal might not always be a safe approach, because the vidian canal could be located superior to the level of the anterior genu of petrous ICA according to our findings in the present study.