Comparison of sedation with dexmedetomidine/atipamezole administered subcutaneously at GV20 acupuncture point with usual routes of administration in dogs presented for orthopaedic radiographs.

OBJECTIVES: To evaluate the efficacy of subcutaneous administration of dexmedetomidine/atipamezole at the Governing Vessel 20 (GV20) acupuncture point compared with other administration routes (intramuscular and intravenous) in dogs presented for orthopaedic radiographs. MATERIALS AND METHODS: Prospective, randomised, blinded, controlled clinical study. Sixty-four client-owned dogs were randomly injected with 200 µg/m2 of dexmedetomidine intramuscular (lumbar muscles) (n=20), intravenous (n=23) or subcutaneous at the GV20 point (n=21). Following radiographs, dogs received 2000 µg/m2 of atipamezole intramuscular (n=31), or subcutaneous at the GV20 point (n=27). Degree and time to sedation and recovery were assessed using a sedation scale and a Dynamic and Interactive Visual Analog Scale (DIVAS). Clinical physiological variables and adverse events were used. Statistical linear mixed-effect models (analysis of variance) and Cox models were performed. Significance was set at P-value <0.05. RESULTS: Sedation was insufficient to perform orthopaedic radiographs in six dogs in the intramuscular group. The time to sedation was significantly longer, and sedation scale and DIVAS scores were significantly lower in the intramuscular group. The intravenous group had significantly higher sedation scale and DIVAS scores than the GV20 group. No significant differences were observed between the intramuscular and GV20 recovery groups, although the time effect was significantly more pronounced in the GV20 recovery group. CLINICAL SIGNIFICANCE: Subcutaneous administration of dexmedetomidine and atipamezole at GV20 provided effective sedation and recovery in dogs undergoing orthopaedic radiographic studies. GV20 administration provided a clinically similar level of sedation to the intravenous route, and greater and faster sedation and similar recovery to intramuscular.

Association between prehospital lactate categories with short- and long-term mortality: a prospective, observational multicenter study.

BACKGROUND: Lactate is an already recognized biomarker for short-term mortality in emergency medical services (EMS). However, how different levels of lactate are associated with short-, mid- and long-term outcomes should be unveiled. AIM: To determine how different categories of hyperlactatemia are associated with mortality. We also aim to clinically characterize hyperlactatemia groups. DESIGN: A multicenter, prospective, observational study performed between January 2019 and February 2022, considering 48 basic life support units and 5 advanced life support units referring to 4 tertiary care hospitals (Spain). Patients were recruited from phone requests for emergency assistance in adults, evacuated to emergency departments. The primary outcome was in-hospital mortality from any cause within the first to the 365-day period following EMS attendance. The main measures were demographical and biochemical variables, prehospital advanced life support techniques used and patient condition categorized in 24 diseases. METHODS: Univariate and Cox regression analysis. RESULTS: A total of 5072 participants fulfilled inclusion criteria. Group #1 (non-hyperlactatemia) was composed of 2389 subjects (47.1%), Group #2 (mild hyperlactatemia) of 1834 (36.1%), Group #3 (hyperlactatemia) of 333 (6.6%) and, finally, Group #4 (severe hyperlactatemia) of 516 (10.2%). The 1-day mortality was 0.2%, 1.1%, 9% and 22.3% in the four lactate groups, respectively. Long-term mortality (365 days) was 10.2%, 22.7%, 38.7% and 46.7% in the four lactate groups, respectively. Differences between patients' conditions of lactatemia groups were also found. CONCLUSIONS: Our results demonstrated that prehospital lactate categories were associated with short- and long-term outcomes in a different manner. These results will allow EMS to establish different risk states according to the prehospital lactate categories.

Inactivation Kinetics and Replication Cycle Inhibition of Coxsackievirus B5 by Free Chlorine.

The kinetics of coxsackievirus serotype B5 (CVB5) inactivation with free chlorine is characterized over a range of pH and temperature relevant to drinking water treatment with the primary goal of selecting experimental conditions used for assessing inactivation mechanisms. The inactivation kinetics identified in our study is similar to or slower than experimental data reported in the literature and thus provides a conservative representation of the kinetics of CVB5 inactivation for free chlorine that could be useful in developing future regulations for waterborne viral pathogens including adequate disinfection treatment for CVB5. Untreated and free chlorine-treated viruses, and host cells synchronized-infected with these viruses, are analyzed by a reverse transcription-quantitative polymerase chain reaction (RT-qPCR) method with the goal of quantitatively investigating the effect of free chlorine exposure on viral genome integrity, attachment to host cell, and viral genome replication. The inactivation kinetics observed results from a combination of hindering virus attachment to the host cell, inhibition of one or more subsequent steps of the replication cycle, and possibly genome damage.

Acute myocardial infarction in a young patient by coronary embolism / Infarto agudo de miocardio en un paciente joven causado por embolia coronaria

Abstract: Coronary artery disease continues to be the leading cause of death in modern society; the most frequent cause is atherosclerosis. There are other causes such as coronary embolism and coronary dissection, among others. This article presents the case of a young patient with acute myocardial infarction in whom a coronary embolism was documented as the cause of infarction.

Resumen: La enfermedad arterial coronaria continúa siendo una causa de mortalidad en nuestro medio; la causa más frecuente es la aterosclerosis. Existen otras causas como embolia coronaria, disección coronaria. En este artículo se describe el caso de un paciente joven, quien presentó un infarto agudo de miocardio y se documentó un embolia conoraria como causa.

Males and females with first episode psychosis present distinct profiles of social cognition and metacognition.

Deficits in social cognition and metacognition impact the course of psychosis. Sex differences in social cognition and metacognition could explain heterogeneity in psychosis. 174 (58 females) patients with first-episode psychosis completed a clinical, neuropsychological, social cognitive, and metacognitive assessment. Subsequent latent profile analysis split by sex yielded two clusters common to both sexes (a Homogeneous group, 53% and 79.3%, and an Indecisive group, 18.3% and 8.6% of males and females, respectively), a specific male profile characterized by presenting jumping to conclusions (28.7%) and a specific female profile characterized by cognitive biases (12.1%). Males and females in the homogeneous profile seem to have a more benign course of illness. Males with jumping to conclusions had more clinical symptoms and more neuropsychological deficits. Females with cognitive biases were younger and had lower self-esteem. These results suggest that males and females may benefit from specific targeted treatment and highlights the need to consider sex when planning interventions.

Mapping mad maps and recovery tools developed by mental health service users and survivors of psychiatry: a scoping review.

BACKGROUND: Since 1997, several tools based on the experiences of users and survivors of psychiatry have been developed with the goal of promoting self-determination in recovery, empowerment and well-being. OBJECTIVES: The aims of this study were to identify these tools and their distinctive features, and to know how they were created, implemented and evaluated. METHOD: This work was conducted in accordance with a published Scoping Review protocol, following the Arksey and O'Malley approach and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for scoping reviews. Five search strategies were used, including contact with user and survivor networks, academic database searching (Cochrane, Cumulative Index to Nursing and Allied Health Literature, PsycINFO, PsycARTICLES, SCOPUS, PubMed and Web of Science), grey literature searching, Google Scholar searching and reference harvesting. We focused on tools, elaborated by users and survivors, and studies reporting the main applications of them. The searches were performed between 21 July and 22 September 2022. Two approaches were used to display the data: descriptive analysis and thematic analysis. RESULTS: Six tools and 35 studies were identified, most of them originating in the USA and UK. Thematic analysis identified six goals of the tools: improving wellness, navigating crisis, promoting recovery, promoting empowerment, facilitating mutual support and coping with oppression. Of the 35 studies identified, 34 corresponded to applications of the Wellness Recovery Action Plan (WRAP). All of them, but one, evaluated group workshops implementations. The most common objective was to evaluate symptom improvement. Only eight studies included users and survivors as part of the research team. CONCLUSIONS: Only the WRAP has been widely disseminated and investigated. Despite the tools were designed to be implemented by peers, it seems they have been usually implemented without them as trainers. Even when these tools are not aimed to promote clinical recovery, in practice the most disseminated recovery tool is being used in this way.

Atom Probe Tomography of Encapsulated Hydroxyapatite Nanoparticles.

Hydroxyapatite nanoparticles (HAP NPs) are important for medicine, bioengineering, catalysis, and water treatment. However, current understanding of the nanoscale phenomena that confer HAP NPs their many useful properties is limited by a lack of information about the distribution of the atoms within the particles. Atom probe tomography (APT) has the spatial resolution and chemical sensitivity for HAP NP characterization, but difficulties in preparing the required needle-shaped samples make the design of these experiments challenging. Herein, two techniques are developed to encapsulate HAP NPs and prepare them into APT tips. By sputter-coating gold or the atomic layer deposition of alumina for encapsulation, partially fluoridated HAP NPs are successfully characterized by voltage- or laser-pulsing APT, respectively. Analyses reveal that significant tradeoffs exist between encapsulant methods/materials for HAP characterization and that selection of a more robust approach will require additional technique development. This work serves as an essential starting point for advancing knowledge about the nanoscale spatiochemistry of HAP NPs.