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1.
JMIR Hum Factors ; 9(2): e29780, 2022 Apr 29.
Artigo em Inglês | MEDLINE | ID: mdl-35486414

RESUMO

BACKGROUND: The implementation of an integrated electronic health record (EHR) system can potentially provide health care providers with support standardization of patient care, pathways, and workflows, as well as provide medical staff with decision support, easier access, and the same interface across features and subsystems. These potentials require an implementation process in which the expectations of the medical staff and the provider of the new system are aligned with respect to the medical staff's knowledge and skills, as well as the interface and performance of the system. Awareness of the medical staff's level of eHealth literacy may be a way of understanding and aligning these expectations and following the progression of the implementation process. OBJECTIVE: The objective of this study was to investigate how a newly developed and modified instrument measuring the medical staff's eHealth literacy (staff eHealth Literacy Questionnaire [eHLQ]) can be used to inform the system provider and the health care organization in the implementation process and evaluate whether the medical staff's perceptions of the ease of use change and how this may be related to their level of eHealth literacy. METHODS: A modified version of the eHLQ was distributed to the staff of a medical department in Denmark before and 3 months after the implementation of a new EHR system. The survey also included questions related to users' perceived ease of use and their self-reported information technology skills. RESULTS: The mean age of the 194 participants before implementation was 43.1 (SD 12.4) years, and for the 198 participants after implementation, it was 42.3 (SD 12.5) years. After the implementation, the only difference compared with the preimplementation data was a small decrease in staff eHLQ5 (motivated to engage with digital services; unpaired 2-tailed t test; P=.009; effect size 0.267), and the values of the scales relating to the medical staff's knowledge and skills (eHLQ1-3) were approximately ≥3 both before and after implementation. The range of scores was narrower after implementation, indicating that some of those with the lowest ability benefited from the training and new experiences with the EHR. There was an association between perceived ease of use and the 3 tested staff eHLQ scales, both before and after implementation. CONCLUSIONS: The staff eHLQ may be a good candidate for monitoring the medical staff's digital competence in and response to the implementation of new digital solutions. This may enable those responsible for the implementation to tailor efforts to the specific needs of segments of users and inform them if the process is not going according to plan with respect to the staff's information technology-related knowledge and skills, trust in data security, motivation, and experience of a coherent system that suits their needs and supports the workflows and data availability.

2.
Epilepsia ; 44(10): 1280-8, 2003 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-14510821

RESUMO

PURPOSE: The purpose of this study was to test the teratogenic potential of the antiepileptic drug (AED) levetiracetam (LEV), its major metabolite in humans, 2-pyrrolidone-N-butyric acid (PBA), and enantiomer, (R)-alpha-ethyl-oxo-pyrrolidine acetamide (REV), in a well-established mouse model. METHODS: All compounds were administered by intraperitoneal injections once daily to SWV/Fnn mice on gestational days 8-1/2 to 12-1/2. LEV was administered at doses of 600, 1,200, and 2,000 mg/kg/day, piracetam (PIR) and PBA, at 600 and 1,200 mg/kg/day, and REV, at 600 mg/kg/day. On gestational day 18(1/2), fetuses were examined for gross external malformations and prepared for skeletal analysis by using Alizarin Red S staining. RESULTS: No significant gross external malformations were observed in any of the study groups. Fetal weights were significantly reduced in most study groups. Resorption rates were significantly increased only in the 2,000-mg/kg/day LEV group. The overall incidence of skeletal abnormalities and specifically of hypoplastic phalanges was significantly increased in both PBA treatments and in the intermediate 1,200-mg/kg/day LEV group. In contrast to that in humans, 24-h urinary excretion analysis in mice showed that 65-100% of the LEV doses were excreted unchanged, whereas only 4% was excreted as the metabolite PBA. CONCLUSIONS: Results of this study demonstrate that both LEV and its major metabolite in humans, PBA, do not induce major structural malformations in developing SWV/Fnn embryos and suggest that they provide a margin of reproductive safety for the pregnant epileptic population when compared with other AEDs tested in this mouse model.


Assuntos
Butiratos/toxicidade , Modelos Animais de Doenças , Piracetam/análogos & derivados , Piracetam/toxicidade , Efeitos Tardios da Exposição Pré-Natal , Pirrolidinonas/toxicidade , Animais , Butiratos/química , Butiratos/metabolismo , Feminino , Feto/anormalidades , Feto/efeitos dos fármacos , Levetiracetam , Camundongos , Piracetam/química , Piracetam/metabolismo , Gravidez , Pirrolidinas/química , Pirrolidinas/metabolismo , Pirrolidinas/toxicidade , Pirrolidinonas/química , Pirrolidinonas/metabolismo , Teratogênicos/química , Teratogênicos/metabolismo , Teratogênicos/toxicidade
3.
Pharm Res ; 20(8): 1293-301, 2003 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-12948028

RESUMO

PURPOSE: Racemic valnoctamide (VCD) is a central nervous system-active drug commercially available in Europe. VCD possesses two chiral centers and, therefore, it exists as a mixture of four stereoisomers. The purpose of this study was to evaluate the anticonvulsant activity of two VCD stereoisomers in comparison with VCD (racemate), valpromide (VPD), and valproic acid (VPA) and to study their pharmacokinetic-pharmacodynamic relationships. METHODS: The ability of racemic VCD, (2S,3S)-VCD, (2R,3S)-VCD and VPD to block partial seizures was studied in the 6Hz psychomotor seizure model in mice and in the hippocampal kindled rat. The ability of (2S,3S)-VCD and (2R,3S)-VCD to prevent generalized seizures was evaluated in the maximum electroshock (MES) and subcutaneous metrazole (sc Met) seizure tests. The PK of (2S,3S)-VCD, (2R,3S)-VCD, and VPD was studied in the mice utilized in the 6Hz model. RESULTS: All of the tested compounds were effective in the models tested. No significant difference in ED50 values was observed but the plasma and brain EC50 values of (2R,3S)-VCD in the 6Hz model at 32 mA stimulation were 2-fold higher than the EC50 values of (2S,3S)-VCD. An excellent pharmacokinetic-pharmacodynamic correlation was found between the plasma and brain concentrations of the VCD stereoisomers and their anticonvulsant effect in mice. Stereoselectivity was observed in clearance, volume of distribution, and in brain-to-plasma AUC ratio at a dose of 25 mg/kg, but the difference disappeared at higher doses as the clearance of the stereoisomers decreased and their half-life increased. For (2R,3S)-VCD the brain-to-plasma AUC ratio doubled at the tested dose range, while it remained constant for (2S,3S)-VCD. CONCLUSIONS: Racemic VCD, VPD, (2R,3S)-VCD, and (2S,3S)-VCD are effective anticonvulsants in animal models of partial seizures and are more potent than VPA. The more favorable brain penetration of (2S,3S)-VCD and its lower EC50 value in the 6Hz test provides one advantage over (2R,3S)-VCD as a new antiepileptic drug.


Assuntos
Amidas/farmacologia , Amidas/farmacocinética , Anticonvulsivantes/farmacologia , Anticonvulsivantes/farmacocinética , Epilepsia/tratamento farmacológico , Amidas/química , Animais , Anticonvulsivantes/química , Área Sob a Curva , Encéfalo/metabolismo , Epilepsia/metabolismo , Meia-Vida , Injeções Intraperitoneais , Excitação Neurológica , Masculino , Camundongos , Ratos , Ratos Sprague-Dawley , Estereoisomerismo , Relação Estrutura-Atividade , Fatores de Tempo
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