World Neurosurg
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Multicenter Study
Reversal of vasospasm with clazosentan after aneurysmal subarachnoid hemorrhage: a pilot study.
Clazosentan, an endothelin-1 receptor antagonist, has been shown to prevent the development of large vessel angiographic vasospasm after aneurysmal subarachnoid hemorrhage (aSAH). It has been hypothesized that clazosentan can also reverse established angiographic vasospasm. ⋯ Although the main analysis showed a reversal of large vessel vasospasm 3 hours after clazosentan initiation in a few patients, the exploratory analysis indicated a clear pharmacodynamic dilating effect on vasospastic cerebral vessels at 24 hours in most patients, in particular, in the distal arterial beds. This observation supported the inclusion of patients with established vasospasm in the ongoing REACT (prevention and treatment of vasospasm with clazosentan) trial.
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The National Cancer Database (NCDB) and the SEER (Surveillance Epidemiology and End Results) program are the 2 largest cancer registries in the United States. However, considerable differences exist between them regarding the sampling frame as well as the participating facility characteristics. In this study, NCDB and SEER are compared for primary central nervous system (CNS) tumors with the aims of discussing the implications for researchers and evaluating the generalizability of both databases. ⋯ Analysis of 623,361 patients with primary CNS tumors, which are identified using both the NCDB and SEER databases, showed significant differences in age, histopathologic classification of tumors, tumor behavior, and treatment of tumors between 2 databases. Overall, the differences observed between 2 databases provide helpful points for the researchers who would like to use NCDB or SEER. These observations should be taken into account when researchers design studies using these databases and discuss the generalizability of their findings.
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Observational Study
Prolonged antibiotics for drains after spine injury instrumentation for trauma: not prophylactic or necessary.
Antibiotics after spine instrumentation are often extended while the surgical drain is in place, particularly for traumatic injuries. We sought to study if continuing antibiotics past 24 hours affected outcomes. ⋯ Continuing antibiotics past 24 hours after traumatic spine instrumentation was not associated with improved outcomes. A prospective study to verify these findings may be warranted.
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Case Reports
Novel Nerve Transfers for Motor and Sensory Restoration in High Cervical Spinal Cord Injury: Report of 2 Cases.
Tetraplegia caused by cervical spinal cord injury is devastating for patients and represents a significant public health problem in both developed and developing countries. Improved functional outcomes after nerve transfers are increasingly reported in the literature, but thus far, no options exist for injuries above the C5 level. ⋯ We describe 2 successful cases of the first and to date only option for motor and sensory reinnervation in high cervical spinal cord injuries. These procedures provide a robust nerve transfer option capable of improving quality of life in tetraplegic patients. There may be a significant undertreated population of patients with cervical spinal cord injury patients in the United States who were previously considered outside the window for benefiting from nerve transfers but who would benefit from these techniques.
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Microscopic delineation and clearance of tumor cells at neurosurgical excision margins potentially reduce tumor recurrence and increase patient survival. Probe-based in vivo fluorescence microscopy technologies are promising for neurosurgical in vivo microscopy. ⋯ We demonstrate the utility of a 3D-printed, flexible probe microscope for high-resolution microscopic imaging with increased architectural detail. Enhanced in vivo imaging using this device may improve our ability to detect and decrease microscopic tumor burden at excision margins during neurosurgical procedures.