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To describe a study protocol for a survey study in German nursing homes that (1) plans to enhance a typology of care units (2) and investigates the association between different care unit types and the provision of dementia-specific interventions based on a stratified randomized sample.
Many nursing homes in Germany provide Dementia Special Care Units. Existing definitions often do no justice to the complexity of their context. In this study, we define context as structural and organizational variables. It is necessary to define an empirical based set of indicators to characterize care units with respect to dementia care.
Observational survey study with a cross-sectional design.
We will use a stratified random nationwide sample of 160 German nursing homes. Stratification variables are federal state and the existence of a Dementia Special Care Unit. The sampling frame from which the participating nursing homes are selected is a list with the total population of German nursing homes (n=11.658). Data will be gathered on the level of the nursing homes and one of their care units via computer-assisted telephone interviews with a standardized questionnaire. The distribution of the assessed variables (contextual characteristics) will be described in absolute and relative frequencies for the whole sample in the first step in order to describe dementia-specific care structures. In the second step, factor analysis of mixed data (FAMD) with hierarchical clustering (HC) will be applied to analyze relationships between variables. The study was ethically approved in October 2018.
The typology can be used in future studies to define the context of care units in nursing homes. This may improve the interpretation of findings from future studies that investigated interventions in nursing homes.
The typology will visualize and describe the complexity of contextual characteristics of several care units.
The typology will visualize and describe the complexity of contextual characteristics of several care units.NMR offers the potential to holistically screen hundreds of metabolites and has already proved to be a powerful technique able to provide a global picture of metabolic changes in a wide range of biological systems underlying complex and multifactorial matrixes. This review covers the literature until May 2020 centered on the early prediction of the viability of in vitro developed embryos using several analytical techniques, including NMR. Nowadays, the predominant non-invasive technique for selecting viable embryos is based on morphology, where variables associated with the rate of cleavage and blastocyst formation are evaluated by the embryologist following standardized criteria that are somewhat subjective. This morphological approach is therefore inadequate for the prediction of embryo quality, and several studies have focused on developing new non-invasive methods using molecular approaches based particularly on metabolomics. This review outlines the potential of NMR as one of these non-invasive in vitro methods based on the analysis of spent embryo culture media.
To investigate inter-subject variability of B
, SAR and temperature rise in a database of human models using a local transmit array for 7 T cardiac imaging.
Dixon images were acquired of 14 subjects and segmented in dielectric models with an eight-channel local transmit array positioned around the torso for cardiac imaging. EM simulations were done to calculate SAR distributions. Based on the SAR distributions, temperature simulations were performed for exposure times of 6 min and 30 min. Pictilisib manufacturer Peak local SAR and temperature rise levels were calculated for different RF shim settings. A statistical analysis of the resulting peak local SAR and temperature rise levels was performed to arrive at safe power limits.
For RF shim vectors with random phase and uniformly distributed power, a safe average power limit of 35.7 W was determined (first level controlled mode). When RF amplitude and phase shimming was performed on the heart, a safe average power limit of 35.0 W was found. According to Pennes' model, our numerical study suggests a very low probability of exceeding the absolute local temperature limit of 40 °C for a total exposure time of 6 min and a peak local SAR of 20 W/kg. For a 30 min exposure time at 20 W/kg, it was shown that the absolute temperature limit can be exceeded in the case where perfusion does not change with temperature.
Safe power constraints were found for 7 T cardiac imaging with an eight-channel local transmit array, while considering the inter-subject variability of B
, SAR and temperature rise.
Safe power constraints were found for 7 T cardiac imaging with an eight-channel local transmit array, while considering the inter-subject variability of B1 + , SAR and temperature rise.The rapid development of artificial intelligence (AI) and digital health raise concerns about equitable access to innovative interventions, appropriate use of health data and privacy, inclusiveness, bias and discrimination, and even changes to the clinician-patient relationship. This article outlines a number of ethical and legal issues when examining the use of AI in gastroenterology. Substantive ethico-legal principles including respect for persons, privacy and confidentiality, integrity, conflict of interest, beneficence, nonmaleficence, and justice, are discussed. Much of what we articulated is relevant to the use of AI in other medical fields. Going forward, consorted efforts should be use to address more particular and concrete problems, but for now, a principle-based approach is best used in problem-solving.
Dysphagia may occur in up to 44% of patients with head and neck cancer (HNC) treated with radiation therapy and up to 84% of patients treated with surgery. To test the extent of dysphagia, the 100 mL water swallow test (WST) was developed. In this study, reliability of the 100 mL WST was determined in patients with HNC and healthy subjects.
Thirty-three patients and 40 healthy subjects performed the WST twice on the same day. To assess reliability, the intraclass correlation coefficient (ICC
), standard error of measurement, smallest detectable change, and limits of agreement were calculated.
Good to excellent correlations were found for patients with HNC (number of swallows; ICC = 0.923, duration; ICC = 0.893), and excellent correlations for healthy subjects (number of swallows; ICC = 0.950, duration; ICC = 0.916).
The 100 mL WST has a good to excellent reliability in patients with HNC and healthy subjects.
The 100 mL WST has a good to excellent reliability in patients with HNC and healthy subjects.Data evaluating mortality and morbidity in infants born ≤500 g are scarce and show wide variability. To support counselling and decision-making, we analysed neurodevelopmental outcome in all neonates ≤500 g birth weight. Retrospective analysis including preterm infants with a birth weight ≤500 g and a gestational age >22 weeks born at a single tertiary perinatal centre between 2010 and 2017. Of 59 live births, 88% received standard care. Birth weight ranged from 318 to 500 g and gestational age from 23 to 29 weeks. 56% of neonates were born ≤3rd percentile and 42% of treated infants survived. Neurodevelopmental outcome was available in 91% of patients and was evaluated using Bayley Scales of Infant Development at two years. 50% showed a favourable mental development (normal or mild impairment), 75% a favourable motor development and 45% a favourable outcome in both outcome subcategories. When additionally considering visual and hearing disability and, or, cerebral palsy level ≥2 according to the Gross Motor Function Classification System 35% had a good neurodevelopmental outcome. Survival rate was 37% for all live births and 42% for infants with standard care. More than one-third of survivors showed no significant neurodevelopmental impairment at two years.
Complete atrioventricular septal defects (CAVSD) include a variable spectrum of congenital malformations with different forms of clinical findings. We examined early and midterm outcomes, the need for reoperation, postoperative residual AV valve regurgitation, and other risk factors after various CAVSD repairs.
Between 2014 and 2018, we have performed 89 isolated CAVSD repairs. We retrospectively reviewed the patients' medical records. Patients were divided into three groups according to their repair techniques modified one patch repair (MP) (n = 16); two patch repair (TP) (n = 49); and left anterior leaflet augmentation (ALA) technique (n = 24).
Eighty patients (89.8%) survived hospital discharge. Early mortality rates were three (18.8%) in the group MP, five (10.2%) in the group TP, and one (4.2%) in the group ALA. Thirteen patients died during the follow-up period. Late mortality rates were three (18.8%) in the group MP, four (16.6%) in the group ALA, and six (12.2%) in the group TP. The mean follow-up time was 35.9 ± 22.97 months (range 0.3-77 months). The morbidity and mortality results were similar between-group TP and ALA but worse in the MP group. Low body weight (<4 kg) and younger age at surgery (<4 months) were found to be risk factors on mortality by univariate and multivariate analysis. Surgical technic was not found to be an independent risk factor.
In our series, TP and ALA techniques had satisfactory results in early and midterm periods. Younger age and small bodyweight might increase early mortality and the need for reoperation.
In our series, TP and ALA techniques had satisfactory results in early and midterm periods. Younger age and small bodyweight might increase early mortality and the need for reoperation.Regulation of mRNA steady-state levels is important in controlling gene expression particularly in response to environmental stimuli. This allows cells to rapidly respond to environment changes. The highly conserved nonsense-mediated mRNA decay (NMD) pathway was initially identified as a pathway that degrades aberrant mRNAs. NMD is now recognized as a pathway with additional functions including precisely regulating the expression of select natural mRNAs. Majority of these natural mRNAs encode fully functional proteins. Regulation of natural mRNAs by NMD is activated by NMD targeting features and environmental cues. Here, we show that Saccharomyces cerevisiae strains from three genetic backgrounds respond differentially to NMD depending on the environmental stimuli. We found that wild type and NMD mutant W303a, BY4741, and RM11-1a yeast strains respond similarly to copper in the environment but respond differentially to toxic cadmium. Furthermore, the PCA1 alleles encoding different mRNAs from W303a and RM11-1a strains are regulated similarly by NMD in response to the bio-metal copper but differentially in response to toxic cadmium.A congenital left ventricular aneurysm is very rare. Clinical presentation varies from absence of symptoms to ventricular arrhythmias, heart failure or even sudden death. The optimal management is controversial and the surgical technique is not defined. A left ventricular aneurysm was diagnosed on prenatal echocardiography at 33 weeks gestation. After birth, initial transthoracic echocardiography confirmed the diagnosis. Two months later, the infant was taken to surgery for aneurysm repair using the Dor procedure with cardiopulmonary bypass. This technique eliminates the need for external prosthetic materials and produces a more physiologic left ventricular geometry. Transthoracic echocardiography performed at 6-month follow-up showed an ejection fraction of 66%.
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