Articles: human.
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Background Since 2022, general practice has shifted from responding to the acute challenges of COVID-19 to restoring full services, using remote and digital modalities as well as traditional in-person care. Aim To examine how quality domains are addressed in contemporary UK general practice. Design and setting Multi-site, mostly qualitative longitudinal case study, placed in national policy context. ⋯ Many staff are stressed and demoralised. Conclusion Contemporary hybrid general practice features changes with the unintended effect of dehumanising, compromising and fragmenting care. Risks to patients and the core values of general practice should be urgently addressed.
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Anesthesia and analgesia · Aug 2024
Methylphenidate Reversal of Dexmedetomidine-Induced Versus Ketamine-Induced Sedation in Rats.
Dexmedetomidine and ketamine have long elimination half-lives in humans and have no clinically approved reversal agents. Methylphenidate enhances dopaminergic and noradrenergic neurotransmission by inhibiting reuptake transporters for these arousal-promoting neurotransmitters. Previous studies in rats demonstrated that intravenous methylphenidate induces emergence from isoflurane and propofol general anesthesia. These 2 anesthetics are thought to act primarily through enhancement of inhibitory Gamma-aminobutyric acid type A (GABAA) receptors. In this study, we tested the behavioral and neurophysiological effects of methylphenidate in rats after low and high doses of dexmedetomidine (an alpha-2 adrenergic receptor agonist) and ketamine (an N-methyl-D-aspartate [NMDA] receptor antagonist) that induce sedation and unconsciousness, respectively. ⋯ Methylphenidate reversed behavioral and neurophysiological correlates of sedation, but not unconsciousness, induced by dexmedetomidine. In contrast, methylphenidate did not affect sedation, unconsciousness, nor EEG signatures in rats after ketamine. These findings suggest that methylphenidate may be efficacious to reverse dexmedetomidine sedation in humans.