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Intraventricular baclofen for the treatment of pediatric spasticity in cerebral palsy: technique and outcomes.
J Neurosurg Pediatr
January 2025
Departments of1Neurosurgery and.
Objective: Intraventricular baclofen (IVB) administration is used for the treatment of secondary dystonia associated with cerebral palsy (CP), but it has not been reported as a first-line infusion technique for spasticity. In this study, the authors report outcomes of patients with mixed or isolated spasticity treated with IVB administration.
Methods: A retrospective analysis was performed of consecutive patients treated with IVB between 2019 and 2023.
Curvature Dependence of Gravitational-Wave Tests of General Relativity.
Phys Rev Lett
December 2024
Center for Computational Astrophysics, Flatiron Institute, 162 5th Avenue, New York, New York 10010, USA.
High-energy extensions to general relativity modify the Einstein-Hilbert action with higher-order curvature corrections and theory-specific coupling constants. The order of these corrections imprints a universal curvature dependence on observations while the coupling constant controls the deviation strength. In this Letter, we leverage the theory-independent expectation that modifications to the action of a given order in spacetime curvature (Riemann tensor and contractions) lead to observational deviations that scale with the system length scale to a corresponding power.
View Article and Find Full Text PDFSelf-Interacting Dark Sectors in Supernovae Can Behave as a Relativistic Fluid.
Phys Rev Lett
December 2024
Dipartimento di Fisica e Astronomia, Università degli Studi di Padova, Via Marzolo 8, 35131 Padova, Italy.
We revisit supernova (SN) bounds on a hidden sector consisting of millicharged particles χ and a massless dark photon. Unless the self-coupling is fine-tuned to be small, rather than exiting the SN core as a gas, the particles form a relativistic fluid and subsequent dark QED fireball, streaming out against the drag due to the interaction with matter. Novel bounds due to excessive energy deposition in the mantle of low-energy supernovae can be obtained.
View Article and Find Full Text PDFObjective: The objective of this study was to assess the complicated relationship between frailty, perioperative complications, and patient-reported outcomes (PROs) in elderly patients (≥ 75 years old) undergoing lumbar spine fusion (LSF).
Methods: Consecutive patients who underwent LSF between March 2019 and December 2021 were recruited in this study. Frail patients (modified frailty index [mFI] score ≥ 2) were propensity score matched to nonfrail patients (mFI score 0-1) on the basis of age, sex, and the number of fused levels.
Predictive factors for traumatic cerebral contusion volume, expansion, and outcomes.
J Neurosurg
January 2025
1Department of Neurological Surgery and.
Objective: Traumatic hemorrhagic cerebral contusions are a well-established cause of morbidity and mortality in neurosurgery. This study aimed to determine prognostic factors for long-term functional outcomes and longitudinal contusion volume changes in traumatic brain injury (TBI) patients.
Methods: Data from 285 patients with traumatic cerebral contusions were retrospectively reviewed to identify variables predictive of initial contusion volume, contusion expansion on short-term follow-up imaging, and functional outcomes according to the modified Rankin Scale (mRS).
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