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Reported cutoff values of the optic nerve sheath diameter (ONSD) for the diagnosis of elevated intracranial pressure (ICP) are inconsistent. This hampers ONSD as a possible noninvasive bedside monitoring tool for ICP. Because the influence of methodological differences on variations in cutoff values is unknown, we performed a narrative review to identify discrepancies in ONSD assessment methodologies and to investigate their effect on reported ONSD values.
We used a structured and quantitative approach in which each ONSD methodology found in the reviewed articles was categorized based on the characteristic appearance of the ultrasound images and ultrasound marker placement. Subsequently, we investigated the influence of the different methodologies on ONSD values by organizing the ONSDs with respect to these categories.
In a total of 63 eligible articles, we could determine the applied ONSD assessment methodology. Reported ultrasound images either showed the optic nerve and its sheath as a dark region with hyperechoic striped band at its edges or as a single dark region surrounded by lighter retrobulbar fat. learn more Four different ultrasound marker positions were used to delineate the optic nerve sheath, which resulted in different ONSD values and more importantly, different sensitivities to changes in ICP.
Based on our observations, we recommend to place ultrasound markers at the outer edges of the hyperechoic striped bands or at the transitions from the single dark region to the hyperechoic retrobulbar fat because these locations yielded the highest sensitivity of ONSD measurements for increased ICP.
Based on our observations, we recommend to place ultrasound markers at the outer edges of the hyperechoic striped bands or at the transitions from the single dark region to the hyperechoic retrobulbar fat because these locations yielded the highest sensitivity of ONSD measurements for increased ICP.
The phenotype of Sjögren's syndrome-associated neuropathy has been better characterized in recent years. However, Sjögren's syndrome-associated neuropathy remains an underdiagnosed entity with only few insights considering the pathomechanisms of nerve damage. Nerve ultrasound has proven to be a useful and efficient tool in detecting nerve damage of autoimmune origin. We, therefore, aimed to evaluate this method for Sjögren's syndrome-associated neuropathy.
Patients with Sjögren's syndrome and clinical signs of neuropathy underwent sonographic examination of both median and ulnar nerves. Nerve thickening was classified for cross-sectional areas of >12 mm² at the median nerve and for >10 mm² at the ulnar nerve. Fascicle thickening was documented for cross-sectional areas ≥5 mm² at the median and ≥3 mm² at the ulnar nerve.
Forty-three patients were included in the analysis (median age 60 years [interquartile range 53-73 years], female rate 60%). 31/43 patients (72%) showed abnormalities on nerve ultrpathy.The clustered regularly interspaced short palindromic repeats (CRISPR) system is a state-of-the-art tool for versatile genome editing that has advanced basic research dramatically, with great potential for clinic applications. The system consists of two key molecules a CRISPR-associated (Cas) effector nuclease and a single guide RNA. The simplicity of the system has enabled the development of a wide spectrum of derivative methods. Almost any laboratory can utilize these methods, although new users may initially be confused when faced with the potentially overwhelming abundance of choices. Cas nucleases and their engineering have been systematically reviewed previously. In the present review, we discuss single guide RNA engineering and design strategies that facilitate more efficient, more specific and safer gene editing.
The purpose of this study was to understand the experiences of nurse managers during the COVID-19 pandemic.
There is a growing body of knowledge about the experiences of clinical nurses during COVID-19. However, there is less evidence about the experiences of nurse managers during the pandemic.
Eight nurse managers, from acute care and outpatient settings, completed semistructured interviews about how their roles had changed during the pandemic, how they felt about these changes, and what had gone well or been difficult. Each participant was interviewed once, for 20-60 min. We used thematic analysis methods to analyse the interview transcripts.
Nurse managers had to coordinate care in a context of uncertainty and guidance that changed frequently. Participants found that their roles and responsibilities either expanded to include more duties, or they were asked to take on a completely new role, with no orientation or training. Nurse managers were expected to provide support to their staff and patients, but did not necessarily receive support themselves. Participants were expected to plan simultaneously for care during the pandemic and for a return to normal working conditions. These factors contributed to challenging and difficult participant experiences of managing during COVID-19.
Nurse managers' experiences during COVID-19 are influenced by changes to their roles and the support they received. Nurse managers continue to support high-quality care despite working a difficult context.
Where possible, nurse managers can be supported to extend their roles or receive additional education and support if they are required to take on new responsibilities. Nurse managers require support in order to be a resource for their staff.
Where possible, nurse managers can be supported to extend their roles or receive additional education and support if they are required to take on new responsibilities. Nurse managers require support in order to be a resource for their staff.Primary mitochondrial disorders (PMDs) comprise a group of hundreds of individual genetic diseases affecting mitochondrial function, including oxidative phosphorylation and energy production. The estimated prevalence of these disorders ranges from 2.9 to 20 cases per 100,000. PMDs are commonly associated with malnutrition and growth failure. There is a paucity of literature regarding nutrition assessment and long-term data in the PMD population. We present three patients with various PMDs who presented complications related to malnutrition (1) a 16-year-old male with Kearns-Sayre syndrome developed type 2 insulin-requiring diabetes mellitus after the initiation of high-calorie nutrition rehabilitation via gastrostomy tube (G-tube); (2) an 11-year-old female with myoclonic epilepsy associated with ragged red fibers developed diarrhea with metabolic decompensation and profound neurological and respiratory deterioration during nutrition rehabilitation after surgical G-tube placement; and (3) a 19-year-old male with a WARS2-associated PMD manifesting with developmental delay and severe parkinsonism presented complications related to poor wound healing after gastrojejunostomy tube placement.
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